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eco.json
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[
{"c": "A00", "n": "Amar Gambit", "f": "rn1qkbnr/ppp2ppp/8/3p4/5p2/6PB/PPPPP2P/RNBQK2R w KQkq", "id": 2990, "m": "g1h3 d7d5 g2g3 e7e5 f2f4 c8h3 f1h3 e5f4"},
{"c": "A00", "n": "Amar Opening: Gent Gambit", "f": "rn1qkbnr/ppp2ppp/8/3p4/8/6PB/PPPPP3/RNBQ1RK1 b kq", "id": 46, "m": "g1h3 d7d5 g2g3 e7e5 f2f4 c8h3 f1h3 e5f4 e1g1 f4g3 h2g3"},
{"c": "A00", "n": "Amar Opening: Paris Gambit", "f": "rnbqkbnr/ppp2ppp/8/3pp3/5P2/6PN/PPPPP2P/RNBQKB1R b KQkq", "id": 47, "m": "g1h3 d7d5 g2g3 e7e5 f2f4"},
{"c": "A00", "n": "Amsterdam Attack", "f": "r1bqkb1r/ppp2ppp/2np1n2/4p3/2P5/1PN1P3/P2P1PPP/R1BQKBNR w KQkq", "id": 2994, "m": "e2e3 e7e5 c2c4 d7d6 b1c3 b8c6 b2b3 g8f6"},
{"c": "A00", "n": "Anderssen Opening", "f": "rnbqkbnr/pppppppp/8/8/8/P7/1PPPPPPP/RNBQKBNR b KQkq", "id": 49, "m": "a2a3"},
{"c": "A00", "n": "Anderssen Opening: Polish Gambit", "f": "rnbqkbnr/1ppppppp/8/p7/1P6/P7/2PPPPPP/RNBQKBNR b KQkq", "id": 50, "m": "a2a3 a7a5 b2b4"},
{"c": "A00", "n": "Barnes Opening: Fool's Mate", "f": "rnb1kbnr/pppp1ppp/8/4p3/6Pq/5P2/PPPPP2P/RNBQKBNR w KQkq", "id": 51, "m": "f2f3 e7e5 g2g4 d8h4"},
{"c": "A00", "n": "Barnes Opening: Gedult Gambit", "f": "rnbqkbnr/ppp1pp1p/6p1/8/3Pp3/2P2P2/PP4PP/RNBQKBNR b KQkq", "id": 52, "m": "f2f3 d7d5 e2e4 g7g6 d2d4 d5e4 c2c3"},
{"c": "A00", "n": "Barnes Opening: Gedult Gambit", "f": "rnbqkbnr/ppppp1pp/8/8/4p3/2N2P2/PPPP2PP/R1BQKBNR b KQkq", "id": 53, "m": "f2f3 f7f5 e2e4 f5e4 b1c3"},
{"c": "A00", "n": "Barnes Opening: Hammerschlag", "f": "rnbqkbnr/pppp1ppp/8/4p3/8/5P2/PPPPPKPP/RNBQ1BNR b kq", "id": 54, "m": "f2f3 e7e5 e1f2"},
{"c": "A00", "n": "Barnes Opening: Walkerling", "f": "rnbqkb1r/pppp1ppp/5n2/4p3/2B1P3/5P2/PPPP2PP/RNBQK1NR b KQkq", "id": 55, "m": "f2f3 e7e5 e2e4 g8f6 f1c4"},
{"c": "A00", "n": "Clemenz Opening", "f": "rnbqkbnr/pppppppp/8/8/8/7P/PPPPPPP1/RNBQKBNR b KQkq", "id": 340, "m": "h2h3"},
{"c": "A00", "n": "Clemenz Opening: Spike Lee Gambit", "f": "rnbqkbnr/ppppppp1/8/7p/6P1/7P/PPPPPP2/RNBQKBNR b KQkq", "id": 341, "m": "h2h3 h7h5 g2g4"},
{"c": "A00", "n": "Crab Opening", "f": "rnbqkbnr/pppp1ppp/8/4p3/P6P/8/1PPPPPP1/RNBQKBNR b KQkq", "id": 2991, "m": "a2a4 e7e5 h2h4"},
{"c": "A00", "n": "Creepy Crawly Formation: Classical Defense", "f": "rnbqkbnr/ppp2ppp/8/3pp3/8/P6P/1PPPPPP1/RNBQKBNR w KQkq", "id": 342, "m": "h2h3 d7d5 a2a3 e7e5"},
{"c": "A00", "n": "Formation: Cabbage Attack", "f": "r1bq1rk1/ppp2ppp/2nb1n2/3pp3/P7/1PP1P1P1/1B1P1P1P/RN1QKBNR b KQ", "id": 2888, "m": "c2c3 e7e5 a2a3 d7d5 b2b3 g8f6 c1b2 b8c6 a3a4 f8d6 g2g3 e8g8 e2e3"},
{"c": "A00", "n": "Formation: Hippopotamus Attack", "f": "r1bq1rk1/ppp2ppp/2nb1n2/3pp3/8/PPPPPPP1/7P/RNBQKBNR b KQ", "id": 2886, "m": "a2a3 e7e5 b2b3 d7d5 c2c3 g8f6 d2d3 b8c6 e2e3 f8d6 f2f3 e8g8 g2g3"},
{"c": "A00", "n": "Formation: Shy Attack", "f": "r1bq1rk1/ppp2ppp/2nb1n2/3pp3/8/P2PP1PP/1PPN1PB1/R1BQK1NR b KQ", "id": 2887, "m": "a2a3 e7e5 g2g3 d7d5 f1g2 g8f6 d2d3 b8c6 b1d2 f8d6 e2e3 e8g8 h2h3"},
{"c": "A00", "n": "Gedult's Opening", "f": "rnbqkbnr/pppppppp/8/8/8/5P2/PPPPP1PP/RNBQKBNR b KQkq", "id": 2995, "m": "f2f3"},
{"c": "A00", "n": "Global Opening", "f": "rnbqkbnr/pppp1ppp/8/4p3/8/P6P/1PPPPPP1/RNBQKBNR b KQkq", "id": 2989, "m": "h2h3 e7e5 a2a3"},
{"c": "A00", "n": "Grob Opening", "f": "rnbqkbnr/pppppppp/8/8/6P1/8/PPPPPP1P/RNBQKBNR b KQkq", "id": 733, "m": "g2g4"},
{"c": "A00", "n": "Grob Opening: Alessi Gambit", "f": "rnbqkbnr/ppppp1pp/8/5p2/6P1/8/PPPPPP1P/RNBQKBNR w KQkq", "id": 730, "m": "g2g4 f7f5"},
{"c": "A00", "n": "Grob Opening: Double Grob", "f": "rnbqkbnr/pppppp1p/8/6p1/6P1/8/PPPPPP1P/RNBQKBNR w KQkq", "id": 732, "m": "g2g4 g7g5"},
{"c": "A00", "n": "Grob Opening: Double Grob, Coca-Cola Gambit", "f": "rnbqkbnr/pppppp1p/8/6p1/5PP1/8/PPPPP2P/RNBQKBNR b KQkq", "id": 2765, "m": "g2g4 g7g5 f2f4"},
{"c": "A00", "n": "Grob Opening: Grob Gambit", "f": "rnbqkbnr/ppp1pppp/8/3p4/6P1/8/PPPPPPBP/RNBQK1NR b KQkq", "id": 734, "m": "g2g4 d7d5 f1g2"},
{"c": "A00", "n": "Grob Opening: Grob Gambit Declined", "f": "rnbqkbnr/pp2pppp/2p5/3p4/6P1/8/PPPPPPBP/RNBQK1NR w KQkq", "id": 736, "m": "g2g4 d7d5 f1g2 c7c6"},
{"c": "A00", "n": "Grob Opening: Grob Gambit, Basman Gambit", "f": "rnbqkbnr/ppp1ppp1/8/3p3P/8/8/PPPPPPBP/RNBQK1NR b KQkq", "id": 735, "m": "g2g4 d7d5 f1g2 h7h5 g4h5"},
{"c": "A00", "n": "Grob Opening: Grob Gambit, Fritz Gambit", "f": "rn1qkbnr/ppp1pppp/8/3p4/2P3b1/8/PP1PPPBP/RNBQK1NR b KQkq", "id": 737, "m": "g2g4 d7d5 f1g2 c8g4 c2c4"},
{"c": "A00", "n": "Grob Opening: Grob Gambit, Fritz Gambit, Romford Countergambit", "f": "q3kbnr/p1pnpppp/8/8/2Pp2b1/8/PP1PPP1P/RNBQK1NR w KQk", "id": 738, "m": "g2g4 d7d5 f1g2 c8g4 c2c4 d5d4 g2b7 b8d7 b7a8 d8a8"},
{"c": "A00", "n": "Grob Opening: Grob Gambit, Keres Gambit", "f": "rnbqkbnr/ppp2ppp/8/3p4/3p2P1/2P5/PP2PPBP/RNBQK1NR b KQkq", "id": 739, "m": "g2g4 d7d5 f1g2 e7e5 d2d4 e5d4 c2c3"},
{"c": "A00", "n": "Grob Opening: Grob Gambit, Richter-Grob Gambit", "f": "rnbqkbnr/pp2pppp/2p5/8/2p3P1/1P6/P2PPPBP/RNBQK1NR b KQkq", "id": 740, "m": "g2g4 d7d5 f1g2 c7c6 c2c4 d5c4 b2b3"},
{"c": "A00", "n": "Grob Opening: Keene Defense", "f": "rnbqkbnr/pp3ppp/2p5/3pp3/6P1/7P/PPPPPPB1/RNBQK1NR w KQkq", "id": 741, "m": "g2g4 d7d5 h2h3 e7e5 f1g2 c7c6"},
{"c": "A00", "n": "Grob Opening: Keene Defense, Main Line", "f": "rnbqk2r/pp2nppp/2pb4/3p4/2PPp1P1/2N4P/PP2PPB1/R1BQK1NR w KQkq", "id": 742, "m": "g2g4 d7d5 h2h3 e7e5 f1g2 c7c6 d2d4 e5e4 c2c4 f8d6 b1c3 g8e7"},
{"c": "A00", "n": "Grob Opening: London Defense", "f": "r1bqkbnr/pppp1ppp/2n5/4p3/6P1/7P/PPPPPP2/RNBQKBNR w KQkq", "id": 743, "m": "g2g4 e7e5 h2h3 b8c6"},
{"c": "A00", "n": "Grob Opening: Romford Countergambit", "f": "rn1qkbnr/ppp1pppp/8/8/2Pp2b1/8/PP1PPPBP/RNBQK1NR w KQkq", "id": 2988, "m": "g2g4 d7d5 f1g2 c8g4 c2c4 d5d4"},
{"c": "A00", "n": "Grob Opening: Spike Attack", "f": "rnbqkbnr/pp2pppp/2p5/3p2P1/8/8/PPPPPPBP/RNBQK1NR b KQkq", "id": 2987, "m": "g2g4 d7d5 f1g2 c7c6 g4g5"},
{"c": "A00", "n": "Grob Opening: Spike, Hurst Attack", "f": "rnbqkbnr/ppp2ppp/8/3pp3/2P3P1/8/PP1PPPBP/RNBQK1NR b KQkq", "id": 746, "m": "g2g4 e7e5 f1g2 d7d5 c2c4"},
{"c": "A00", "n": "Grob Opening: Zilbermints Gambit", "f": "rnbqkbnr/ppp1pppp/8/8/4p1P1/2N5/PPPP1P1P/R1BQKBNR b KQkq", "id": 747, "m": "g2g4 d7d5 e2e4 d5e4 b1c3"},
{"c": "A00", "n": "Grob Opening: Zilbermints Gambit, Schiller Defense", "f": "rnbqkbnr/ppp1ppp1/8/7p/4p1P1/2N5/PPPP1P1P/R1BQKBNR w KQkq", "id": 748, "m": "g2g4 d7d5 e2e4 d5e4 b1c3 h7h5"},
{"c": "A00", "n": "Grob Opening: Zilbermints Gambit, Zilbermints-Hartlaub Gambit", "f": "rnbqkbnr/ppp2ppp/8/4p3/4p1P1/2NP4/PPP2P1P/R1BQKBNR b KQkq", "id": 749, "m": "g2g4 d7d5 e2e4 d5e4 b1c3 e7e5 d2d3"},
{"c": "A00", "n": "Hungarian Opening", "f": "rnbqkbnr/pppppppp/8/8/8/6P1/PPPPPP1P/RNBQKBNR b KQkq", "id": 807, "m": "g2g3"},
{"c": "A00", "n": "Hungarian Opening: Asten Gambit", "f": "r1bqkbnr/ppp3pp/2n5/4Pp2/3pN3/6P1/PPP1PP1P/R1BQKBNR w KQkq", "id": 804, "m": "g2g3 b8c6 b1c3 d7d5 d2d4 e7e5 d4e5 d5d4 c3e4 f7f5"},
{"c": "A00", "n": "Hungarian Opening: Buecker Gambit", "f": "rnbqkbnr/ppp2ppp/8/3pp3/1P6/6P1/P1PPPPBP/RNBQK1NR b KQkq", "id": 805, "m": "g2g3 d7d5 f1g2 e7e5 b2b4"},
{"c": "A00", "n": "Hungarian Opening: Burk Gambit", "f": "rnbqk1nr/ppp1bppp/8/3p4/4p2N/P2P2P1/1PP1PP1P/RNBQKB1R b KQkq", "id": 806, "m": "g2g3 e7e5 a2a3 d7d5 g1f3 e5e4 f3h4 f8e7 d2d3"},
{"c": "A00", "n": "Hungarian Opening: Catalan Formation", "f": "rnbqkbnr/ppp2ppp/4p3/3p4/8/6P1/PPPPPPBP/RNBQK1NR w KQkq", "id": 2537, "m": "g2g3 d7d5 f1g2 e7e6"},
{"c": "A00", "n": "Hungarian Opening: Dutch Defense", "f": "rnbqkbnr/ppppp1pp/8/5p2/8/6P1/PPPPPP1P/RNBQKBNR w KQkq", "id": 2540, "m": "g2g3 f7f5"},
{"c": "A00", "n": "Hungarian Opening: Indian Defense", "f": "rnbqkb1r/pppppppp/5n2/8/8/6P1/PPPPPP1P/RNBQKBNR w KQkq", "id": 2539, "m": "g2g3 g8f6"},
{"c": "A00", "n": "Hungarian Opening: Myers Defense", "f": "rnbqkbnr/pppppp1p/8/6p1/8/6P1/PPPPPP1P/RNBQKBNR w KQkq", "id": 2781, "m": "g2g3 g7g5"},
{"c": "A00", "n": "Hungarian Opening: Pachman Gambit", "f": "rnbqkbnr/ppppp2p/6p1/7Q/4p3/6P1/PPPP1P1P/RNB1KBNR w KQkq", "id": 809, "m": "g2g3 f7f5 e2e4 f5e4 d1h5 g7g6"},
{"c": "A00", "n": "Hungarian Opening: Paris Gambit", "f": "rn1qkbnr/ppp2ppp/8/3p4/5p2/6PB/PPPPP2P/RNBQ1RK1 b kq", "id": 808, "m": "g2g3 e7e5 g1h3 d7d5 f2f4 c8h3 f1h3 e5f4 e1g1"},
{"c": "A00", "n": "Hungarian Opening: Reversed Alekhine", "f": "rnbqkbnr/pppp1ppp/8/4p3/8/5NP1/PPPPPP1P/RNBQKB1R b KQkq", "id": 810, "m": "g2g3 e7e5 g1f3"},
{"c": "A00", "n": "Hungarian Opening: Reversed Brooklyn Defense, Brooklyn Benko Gambit", "f": "rnbqkb1r/pppp1ppp/5n2/8/1P2p3/6P1/P1PPPP1P/RNBQKBNR b KQkq", "id": 2809, "m": "g2g3 e7e5 g1f3 e5e4 f3g1 g8f6 b2b4"},
{"c": "A00", "n": "Hungarian Opening: Reversed Modern Defense", "f": "rnbqkbnr/pp2pppp/8/2pp4/8/6P1/PPPPPPBP/RNBQK1NR w KQkq", "id": 2285, "m": "g2g3 d7d5 f1g2 c7c5"},
{"c": "A00", "n": "Hungarian Opening: Reversed Norwegian Defense", "f": "rnbqkbnr/pppp1ppp/8/8/4p2N/6P1/PPPPPP1P/RNBQKB1R b KQkq", "id": 2808, "m": "g2g3 e7e5 g1f3 e5e4 f3h4"},
{"c": "A00", "n": "Hungarian Opening: Sicilian Invitation", "f": "rnbqkbnr/pp1ppppp/8/2p5/8/6P1/PPPPPP1P/RNBQKBNR w KQkq", "id": 2230, "m": "g2g3 c7c5"},
{"c": "A00", "n": "Hungarian Opening: Slav Formation", "f": "rnbqkbnr/pp2pppp/2p5/3p4/8/6P1/PPPPPPBP/RNBQK1NR w KQkq", "id": 2306, "m": "g2g3 d7d5 f1g2 c7c6"},
{"c": "A00", "n": "Hungarian Opening: Symmetrical Variation", "f": "rnbqkbnr/pppppp1p/6p1/8/8/6P1/PPPPPP1P/RNBQKBNR w KQkq", "id": 2538, "m": "g2g3 g7g6"},
{"c": "A00", "n": "Hungarian Opening: Van Kuijk Gambit", "f": "rnbqkbnr/ppppppp1/8/8/7p/5NP1/PPPPPP1P/RNBQKB1R w KQkq", "id": 811, "m": "g2g3 h7h5 g1f3 h5h4"},
{"c": "A00", "n": "Hungarian Opening: Wiedenhagen-Beta Gambit", "f": "rnbqkbnr/ppp1pp1p/8/3p2p1/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq", "id": 812, "m": "g2g3 d7d5 g1f3 g7g5"},
{"c": "A00", "n": "Hungarian Opening: Winterberg Gambit", "f": "rnbqkbnr/ppp2ppp/8/4p3/2p5/1P4P1/P2PPPBP/RNBQK1NR b KQkq", "id": 813, "m": "g2g3 d7d5 f1g2 e7e5 c2c4 d5c4 b2b3"},
{"c": "A00", "n": "Kadas Opening", "f": "rnbqkbnr/pppppppp/8/8/7P/8/PPPPPPP1/RNBQKBNR b KQkq", "id": 952, "m": "h2h4"},
{"c": "A00", "n": "Kadas Opening: Beginner's Trap", "f": "rnbqkbnr/ppp1pppp/8/3p4/7P/7R/PPPPPPP1/RNBQKBN1 b Qkq", "id": 2864, "m": "h2h4 d7d5 h1h3"},
{"c": "A00", "n": "Kadas Opening: Kadas Gambit", "f": "rnbqkbnr/pp1ppppp/8/2p5/1P5P/8/P1PPPPP1/RNBQKBNR b KQkq", "id": 953, "m": "h2h4 c7c5 b2b4"},
{"c": "A00", "n": "Kadas Opening: Kadas Gambit", "f": "rnbqkbnr/pp2pppp/8/3p4/3p3P/2P2N2/PP2PPP1/RNBQKB1R b KQkq", "id": 954, "m": "h2h4 d7d5 d2d4 c7c5 g1f3 c5d4 c2c3"},
{"c": "A00", "n": "Kadas Opening: Kadas Gambit", "f": "rnbqkbnr/pppp1ppp/8/8/3p3P/2P5/PP2PPP1/RNBQKBNR b KQkq", "id": 955, "m": "h2h4 e7e5 d2d4 e5d4 c2c3"},
{"c": "A00", "n": "Kadas Opening: Myers Variation", "f": "rnbqkbnr/pp2pppp/8/2pp4/3PP2P/8/PPP2PP1/RNBQKBNR b KQkq", "id": 2776, "m": "h2h4 d7d5 d2d4 c7c5 e2e4"},
{"c": "A00", "n": "Kadas Opening: Schneider Gambit", "f": "rnbqkbnr/pppppp1p/8/6p1/7P/8/PPPPPPP1/RNBQKBNR w KQkq", "id": 956, "m": "h2h4 g7g5"},
{"c": "A00", "n": "Kadas Opening: Steinbok Gambit", "f": "rnbqkbnr/ppppp1pp/8/8/4p2P/3P4/PPP2PP1/RNBQKBNR b KQkq", "id": 957, "m": "h2h4 f7f5 e2e4 f5e4 d2d3"},
{"c": "A00", "n": "Lasker Simul Special", "f": "rnbqkbnr/ppppppp1/8/7p/8/6P1/PPPPPP1P/RNBQKBNR w KQkq", "id": 2986, "m": "g2g3 h7h5"},
{"c": "A00", "n": "Mieses Opening", "f": "rnbqkbnr/pppppppp/8/8/8/3P4/PPP1PPPP/RNBQKBNR b KQkq", "id": 1281, "m": "d2d3"},
{"c": "A00", "n": "Mieses Opening: Myers Spike Attack", "f": "rnbqkbnr/pppppp1p/6p1/8/6P1/3P4/PPP1PP1P/RNBQKBNR b KQkq", "id": 1283, "m": "d2d3 g7g6 g2g4"},
{"c": "A00", "n": "Mieses Opening: Reversed Rat", "f": "rnbqkbnr/pppp1ppp/8/4p3/8/3P4/PPP1PPPP/RNBQKBNR w KQkq", "id": 1282, "m": "d2d3 e7e5"},
{"c": "A00", "n": "Nimzo-Larsen Attack: Graz Attack", "f": "rnbqkbnr/ppp1pppp/8/3p4/8/BP6/P1PPPPPP/RN1QKBNR b KQkq", "id": 2862, "m": "b2b3 d7d5 c1a3"},
{"c": "A00", "n": "Polish Opening", "f": "rnbqkbnr/pppppppp/8/8/1P6/8/P1PPPPPP/RNBQKBNR b KQkq", "id": 1545, "m": "b2b4"},
{"c": "A00", "n": "Polish Opening: Baltic Defense", "f": "rn1qkbnr/ppp1pppp/8/3p1b2/1P6/8/PBPPPPPP/RN1QKBNR w KQkq", "id": 2892, "m": "b2b4 d7d5 c1b2 c8f5"},
{"c": "A00", "n": "Polish Opening: Birmingham Gambit", "f": "rnbqkbnr/pp1ppppp/8/2p5/1P6/8/P1PPPPPP/RNBQKBNR w KQkq", "id": 1543, "m": "b2b4 c7c5"},
{"c": "A00", "n": "Polish Opening: Bugayev Advance Variation", "f": "rnbqkbnr/pppp2pp/5p2/1P2p3/8/8/PBPPPPPP/RN1QKBNR b KQkq", "id": 2889, "m": "b2b4 e7e5 c1b2 f7f6 b4b5"},
{"c": "A00", "n": "Polish Opening: Bugayev Attack", "f": "rnbqkbnr/pppp1ppp/8/4p3/1P6/P7/2PPPPPP/RNBQKBNR b KQkq", "id": 1544, "m": "b2b4 e7e5 a2a3"},
{"c": "A00", "n": "Polish Opening: Czech Defense", "f": "rnbqkbnr/ppp2ppp/3p4/4p3/1P6/8/PBPPPPPP/RN1QKBNR w KQkq", "id": 2890, "m": "b2b4 e7e5 c1b2 d7d6"},
{"c": "A00", "n": "Polish Opening: Dutch Defense", "f": "rnbqkbnr/ppppp1pp/8/5p2/1P6/8/P1PPPPPP/RNBQKBNR w KQkq", "id": 2899, "m": "b2b4 f7f5"},
{"c": "A00", "n": "Polish Opening: German Defense", "f": "rnb1kbnr/ppp1pppp/3q4/3p4/1P6/8/PBPPPPPP/RN1QKBNR w KQkq", "id": 2970, "m": "b2b4 d7d5 c1b2 d8d6"},
{"c": "A00", "n": "Polish Opening: Grigorian Variation", "f": "r1bqkbnr/pppppppp/2n5/8/1P6/8/P1PPPPPP/RNBQKBNR w KQkq", "id": 1546, "m": "b2b4 b8c6"},
{"c": "A00", "n": "Polish Opening: Karniewski Variation", "f": "rnbqkb1r/pppppppp/7n/8/1P6/8/P1PPPPPP/RNBQKBNR w KQkq", "id": 1548, "m": "b2b4 g8h6"},
{"c": "A00", "n": "Polish Opening: King's Indian Variation", "f": "rnbqkb1r/pppppp1p/5np1/8/1P6/8/PBPPPPPP/RN1QKBNR w KQkq", "id": 2891, "m": "b2b4 g8f6 c1b2 g7g6"},
{"c": "A00", "n": "Polish Opening: King's Indian Variation, Schiffler Attack", "f": "rnbqkb1r/pppppp1p/5np1/8/1P2P3/8/PBPP1PPP/RN1QKBNR b KQkq", "id": 2893, "m": "b2b4 g8f6 c1b2 g7g6 e2e4"},
{"c": "A00", "n": "Polish Opening: King's Indian Variation, Sokolsky Attack", "f": "rnbq1rk1/ppp1ppbp/3p1np1/8/1PPP4/4PN2/PB3PPP/RN1QKB1R b KQ", "id": 2894, "m": "g1f3 g8f6 c2c4 g7g6 b2b4 f8g7 c1b2 e8g8 e2e3 d7d6 d2d4"},
{"c": "A00", "n": "Polish Opening: Myers Variation", "f": "rnbqkbnr/pp2pppp/2p5/3p4/PP6/8/1BPPPPPP/RN1QKBNR b KQkq", "id": 2780, "m": "b2b4 d7d5 c1b2 c7c6 a2a4"},
{"c": "A00", "n": "Polish Opening: Orangutan-Diemer Gambit", "f": "rnb1kbnr/ppp2ppp/3q4/4p3/1P2p3/P4P2/1BPP2PP/RN1QKBNR b KQkq", "id": 2954, "m": "b2b4 d7d5 c1b2 d8d6 a2a3 e7e5 e2e4 d5e4 f2f3"},
{"c": "A00", "n": "Polish Opening: Orangutan-Hartlaub Gambit", "f": "rnbqkb1r/1p3ppp/2p1pn2/P2p4/4P3/P2P4/1BP2PPP/RN1QKBNR b KQkq", "id": 2955, "m": "b2b4 g8f6 c1b2 e7e6 a2a3 c7c6 d2d3 a7a5 b4a5 d7d5 e2e4"},
{"c": "A00", "n": "Polish Opening: Outflank Variation", "f": "rnbqkbnr/pp1ppppp/2p5/8/1P6/8/P1PPPPPP/RNBQKBNR w KQkq", "id": 1550, "m": "b2b4 c7c6"},
{"c": "A00", "n": "Polish Opening: Queen's Indian Variation", "f": "rnbqkb1r/p1pp1ppp/1p2pn2/1P6/8/8/PBPPPPPP/RN1QKBNR w KQkq", "id": 2895, "m": "b2b4 e7e6 c1b2 g8f6 b4b5 b7b6"},
{"c": "A00", "n": "Polish Opening: Queenside Defense", "f": "rnbqkb1r/1ppp1ppp/p3pn2/1P6/8/8/PBPPPPPP/RN1QKBNR w KQkq", "id": 2897, "m": "b2b4 e7e6 c1b2 g8f6 b4b5 a7a6"},
{"c": "A00", "n": "Polish Opening: Rooks Swap Line", "f": "1nbqkb1r/1ppp1ppp/4pn2/1P6/8/8/2PPPPPP/BN1QKBNR b Kk", "id": 2898, "m": "b2b4 e7e6 c1b2 g8f6 b4b5 a7a6 a2a4 a6b5 a4b5 a8a1 b2a1"},
{"c": "A00", "n": "Polish Opening: Schiffler-Sokolsky Variation", "f": "rnbqkb1r/ppp2ppp/4pn2/1P1p4/8/4P3/PBPP1PPP/RN1QKBNR b KQkq", "id": 2896, "m": "b2b4 e7e6 c1b2 g8f6 b4b5 d7d5 e2e3"},
{"c": "A00", "n": "Polish Opening: Schuehler Gambit", "f": "rnbqkbnr/1p1ppppp/8/pp6/4P3/8/PBPP1PPP/RN1QKBNR b KQkq", "id": 1552, "m": "b2b4 c7c6 c1b2 a7a5 b4b5 c6b5 e2e4"},
{"c": "A00", "n": "Polish Opening: Symmetrical Variation", "f": "rnbqkbnr/p1pppppp/8/1p6/1P6/8/P1PPPPPP/RNBQKBNR w KQkq", "id": 1585, "m": "b2b4 b7b5"},
{"c": "A00", "n": "Polish Opening: Tartakower Gambit", "f": "rnbqkbnr/pppp2pp/5p2/4p3/1P2P3/8/PBPP1PPP/RN1QKBNR b KQkq", "id": 1553, "m": "b2b4 e7e5 c1b2 f7f6 e2e4"},
{"c": "A00", "n": "Polish Opening: Tartakower Gambit, Brinckmann Variation", "f": "r1b1k1nr/ppppq2p/2n2pp1/4pP2/1bB1P3/8/PBPP2PP/RN1QK1NR w KQkq", "id": 1554, "m": "b2b4 e7e5 c1b2 f7f6 e2e4 f8b4 f1c4 b8c6 f2f4 d8e7 f4f5 g7g6"},
{"c": "A00", "n": "Polish Opening: Wolferts Gambit", "f": "rnbqkbnr/pp1p1ppp/8/2p1p3/1P6/8/PBPPPPPP/RN1QKBNR w KQkq", "id": 1555, "m": "b2b4 e7e5 c1b2 c7c5"},
{"c": "A00", "n": "Saragossa Opening", "f": "rnbqkbnr/pppppppp/8/8/8/2P5/PP1PPPPP/RNBQKBNR b KQkq", "id": 1890, "m": "c2c3"},
{"c": "A00", "n": "Sodium Attack", "f": "rnbqkbnr/pppppppp/8/8/8/N7/PPPPPPPP/R1BQKBNR b KQkq", "id": 2348, "m": "b1a3"},
{"c": "A00", "n": "Sodium Attack: Celadon Variation", "f": "rnbqk1nr/pp3ppp/8/2ppp3/8/P2PP3/P1P2PPP/1RBQKBNR b Kkq", "id": 2345, "m": "b1a3 e7e5 d2d3 f8a3 b2a3 d7d5 e2e3 c7c5 a1b1"},
{"c": "A00", "n": "Sodium Attack: Chenoboskion Variation", "f": "rnbqkbnr/pppppp1p/6p1/8/6P1/N7/PPPPPP1P/R1BQKBNR b KQkq", "id": 2346, "m": "b1a3 g7g6 g2g4"},
{"c": "A00", "n": "Sodium Attack: Durkin Gambit", "f": "r1bqkbnr/pppp2pp/2n5/4pp2/2N1P3/8/PPPP1PPP/R1BQKBNR w KQkq", "id": 2347, "m": "b1a3 e7e5 a3c4 b8c6 e2e4 f7f5"},
{"c": "A00", "n": "Valencia Opening", "f": "rnbqkbnr/pppp1ppp/8/4p3/8/3P4/PPPNPPPP/R1BQKBNR b KQkq", "id": 2992, "m": "d2d3 e7e5 b1d2"},
{"c": "A00", "n": "Van Geet Opening", "f": "rnbqkbnr/pppppppp/8/8/8/2N5/PPPPPPPP/R1BQKBNR b KQkq", "id": 2595, "m": "b1c3"},
{"c": "A00", "n": "Van Geet Opening: Battambang Variation", "f": "rnbqkbnr/pppp1ppp/8/4p3/8/P1N5/1PPPPPPP/R1BQKBNR b KQkq", "id": 2588, "m": "a2a3 e7e5 b1c3"},
{"c": "A00", "n": "Van Geet Opening: Berlin Gambit", "f": "r1bqkbnr/ppp1pppp/2n5/3P4/4p3/2N5/PPP2PPP/R1BQKBNR b KQkq", "id": 2589, "m": "e2e4 b8c6 d2d4 d7d5 b1c3 d5e4 d4d5"},
{"c": "A00", "n": "Van Geet Opening: Billockus-Johansen Gambit", "f": "rnbqk1nr/pppp1ppp/8/2b1p3/8/2N2N2/PPPPPPPP/R1BQKB1R w KQkq", "id": 2590, "m": "b1c3 e7e5 g1f3 f8c5"},
{"c": "A00", "n": "Van Geet Opening: Damhaug Gambit", "f": "rnbqkbnr/ppp2ppp/8/3pp3/5P2/2N5/PPPPP1PP/R1BQKBNR w KQkq", "id": 2591, "m": "b1c3 d7d5 f2f4 e7e5"},
{"c": "A00", "n": "Van Geet Opening: Dougherty Gambit", "f": "rnbqkbnr/ppp1pppp/8/8/4p3/2N2P2/PPPP2PP/R1BQKBNR b KQkq", "id": 2592, "m": "b1c3 d7d5 e2e4 d5e4 f2f3"},
{"c": "A00", "n": "Van Geet Opening: Duesseldorf Gambit", "f": "rnbqkbnr/pp1ppppp/8/2p5/1P6/2N5/P1PPPPPP/R1BQKBNR b KQkq", "id": 2593, "m": "b1c3 c7c5 b2b4"},
{"c": "A00", "n": "Van Geet Opening: Dunst-Perrenet Gambit", "f": "rnbqkbnr/ppp1pppp/8/8/4p3/2NP4/PPP2PPP/R1BQKBNR b KQkq", "id": 2594, "m": "b1c3 d7d5 e2e4 d5e4 d2d3"},
{"c": "A00", "n": "Van Geet Opening: Gladbacher Gambit", "f": "rnbqkbnr/ppp2ppp/8/4p3/4p3/1PNP4/P1P2PPP/R1BQKBNR b KQkq", "id": 2596, "m": "b1c3 e7e5 b2b3 d7d5 e2e4 d5e4 d2d3"},
{"c": "A00", "n": "Van Geet Opening: Grünfeld Defense", "f": "rnbqkbnr/ppp2ppp/8/4p3/4N3/8/PPPP1PPP/R1BQKBNR w KQkq", "id": 2597, "m": "e2e4 d7d5 b1c3 d5e4 c3e4 e7e5"},
{"c": "A00", "n": "Van Geet Opening: Grünfeld Defense, Steiner Gambit", "f": "rnbqkbnr/ppp2ppp/8/4p3/4NP2/8/PPPP2PP/R1BQKBNR b KQkq", "id": 2598, "m": "e2e4 e7e5 f2f4 d7d5 b1c3 d5e4 c3e4"},
{"c": "A00", "n": "Van Geet Opening: Hector Gambit", "f": "rnbqkbnr/ppp1pppp/8/8/2B1p3/2N5/PPPP1PPP/R1BQK1NR b KQkq", "id": 2599, "m": "b1c3 d7d5 e2e4 d5e4 f1c4"},
{"c": "A00", "n": "Van Geet Opening: Hergert Gambit", "f": "r1bqkbnr/ppp2ppp/2np4/4P3/8/2N5/PPPPP1PP/R1BQKBNR w KQkq", "id": 2600, "m": "b1c3 d7d6 f2f4 e7e5 f4e5 b8c6"},
{"c": "A00", "n": "Van Geet Opening: Hulsemann Gambit", "f": "rn1qkbnr/ppp2ppp/4b3/3pp2Q/8/2N1P3/PPPP1PPP/R1B1KBNR w KQkq", "id": 2601, "m": "b1c3 e7e5 e2e3 d7d5 d1h5 c8e6"},
{"c": "A00", "n": "Van Geet Opening: Jendrossek Gambit", "f": "rnbqkb1r/pp2p1pp/5n2/2p2p2/1P1p1P2/5N2/P1PPPNPP/R1BQKB1R b KQkq", "id": 2602, "m": "b1c3 d7d5 f2f4 d5d4 c3e4 f7f5 e4f2 g8f6 g1f3 c7c5 b2b4"},
{"c": "A00", "n": "Van Geet Opening: Kluever Gambit", "f": "rnbqkbnr/ppppp1pp/8/8/4p3/2NP4/PPP2PPP/R1BQKBNR b KQkq", "id": 2603, "m": "b1c3 f7f5 e2e4 f5e4 d2d3"},
{"c": "A00", "n": "Van Geet Opening: Laroche Gambit", "f": "rnbqkbnr/p1pppppp/8/1p6/8/2N5/PPPPPPPP/R1BQKBNR w KQkq", "id": 2604, "m": "b1c3 b7b5"},
{"c": "A00", "n": "Van Geet Opening: Liebig Gambit", "f": "rnbqkb1r/ppp2ppp/5n2/3pp2Q/8/2N1P3/PPPP1PPP/R1B1KBNR w KQkq", "id": 2605, "m": "b1c3 e7e5 e2e3 d7d5 d1h5 g8f6"},
{"c": "A00", "n": "Van Geet Opening: Melleby Gambit", "f": "rnbqkbnr/pp2pppp/8/2p5/3pNP2/8/PPPPP1PP/R1BQKBNR w KQkq", "id": 2606, "m": "b1c3 d7d5 f2f4 d5d4 c3e4 c7c5"},
{"c": "A00", "n": "Van Geet Opening: Myers Attack", "f": "rnbqkbnr/pppppp1p/6p1/8/7P/2N5/PPPPPPP1/R1BQKBNR b KQkq", "id": 2587, "m": "b1c3 g7g6 h2h4"},
{"c": "A00", "n": "Van Geet Opening: Napoleon Attack", "f": "r1bqkbnr/pppp1ppp/2n5/4p3/3P4/2N2N2/PPP1PPPP/R1BQKB1R b KQkq", "id": 2608, "m": "b1c3 e7e5 g1f3 b8c6 d2d4"},
{"c": "A00", "n": "Van Geet Opening: Novosibirsk Variation", "f": "r1bqkbnr/pp1ppppp/2n5/8/7Q/2N5/PPP1PPPP/R1B1KBNR b KQkq", "id": 2609, "m": "b1c3 c7c5 d2d4 c5d4 d1d4 b8c6 d4h4"},
{"c": "A00", "n": "Van Geet Opening: Nowokunski Gambit", "f": "rnbqkbnr/pppp1ppp/8/8/4Pp2/2N5/PPPP2PP/R1BQKBNR b KQkq", "id": 2610, "m": "e2e4 e7e5 f2f4 e5f4 b1c3"},
{"c": "A00", "n": "Van Geet Opening: Pfeiffer Gambit", "f": "rnbqkbnr/ppp2ppp/8/4p3/3pNP2/8/PPPPP1PP/R1BQKBNR w KQkq", "id": 2611, "m": "b1c3 d7d5 f2f4 d5d4 c3e4 e7e5"},
{"c": "A00", "n": "Van Geet Opening: Pfeiffer Gambit, Sleipnir Countergambit", "f": "rnbqkbnr/ppp2ppp/8/4p3/3pNP2/5N2/PPPPP1PP/R1BQKB1R b KQkq", "id": 2612, "m": "b1c3 d7d5 f2f4 d5d4 c3e4 e7e5 g1f3"},
{"c": "A00", "n": "Van Geet Opening: Reversed Nimzowitsch", "f": "rnbqkbnr/pppp1ppp/8/4p3/8/2N5/PPPPPPPP/R1BQKBNR w KQkq", "id": 2613, "m": "b1c3 e7e5"},
{"c": "A00", "n": "Van Geet Opening: Reversed Scandinavian", "f": "r1bqkbnr/pppp1ppp/2n5/8/Q7/2N5/PPP1PPPP/R1B1KBNR b KQkq", "id": 2614, "m": "b1c3 e7e5 d2d4 e5d4 d1d4 b8c6 d4a4"},
{"c": "A00", "n": "Van Geet Opening: Sicilian Two Knights", "f": "r1bqkbnr/pp1ppppp/2n5/8/3N4/2N5/PPP1PPPP/R1BQKB1R b KQkq", "id": 2615, "m": "b1c3 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4"},
{"c": "A00", "n": "Van Geet Opening: Sleipnir Gambit", "f": "rnbqk1nr/ppp2ppp/8/3pp3/1b1P4/2N1P3/PPP2PPP/R1BQKBNR w KQkq", "id": 2616, "m": "b1c3 d7d5 e2e3 e7e5 d2d4 f8b4"},
{"c": "A00", "n": "Van Geet Opening: Tuebingen Gambit", "f": "rnbqkb1r/pppppppp/5n2/8/6P1/2N5/PPPPPP1P/R1BQKBNR b KQkq", "id": 2617, "m": "b1c3 g8f6 g2g4"},
{"c": "A00", "n": "Van Geet Opening: Twyble Attack", "f": "rnbqkbnr/pp1ppppp/8/2p5/8/2N5/PPPPPPPP/1RBQKBNR b Kkq", "id": 2618, "m": "b1c3 c7c5 a1b1"},
{"c": "A00", "n": "Van Geet Opening: Venezolana Variation", "f": "rnbqkb1r/ppp1pppp/5n2/3p4/8/2NP2P1/PPP1PP1P/R1BQKBNR b KQkq", "id": 2900, "m": "b1c3 d7d5 d2d3 g8f6 g2g3"},
{"c": "A00", "n": "Van Geet Opening: Warsteiner Gambit", "f": "rnbqkbnr/ppp1pp1p/8/3p2p1/5P2/2N5/PPPPP1PP/R1BQKBNR w KQkq", "id": 2619, "m": "b1c3 d7d5 f2f4 g7g5"},
{"c": "A00", "n": "Van't Kruijs Opening", "f": "rnbqkbnr/pppppppp/8/8/8/4P3/PPPP1PPP/RNBQKBNR b KQkq", "id": 2620, "m": "e2e3"},
{"c": "A00", "n": "Van't Kruijs Opening: Bouncing Bishop Variation", "f": "rnbqkbnr/p1pp1ppp/8/1p2p3/8/1B2P3/PPPP1PPP/RNBQK1NR b KQkq", "id": 2733, "m": "e2e3 e7e5 f1c4 b7b5 c4b3"},
{"c": "A00", "n": "Van't Kruijs Opening: Keoni-Hiva Gambit Delayed", "f": "rnbqkb1r/ppp2ppp/5n2/3p4/5p2/P1N1PN2/1PPP2PP/R1BQKB1R b KQkq", "id": 2624, "m": "e2e3 d7d5 b1c3 g8f6 a2a3 e7e5 f2f4 e5f4 g1f3"},
{"c": "A00", "n": "Van't Kruijs Opening: Keoni-Hiva Gambit, Akahi Variation", "f": "rnbqkb1r/pppp1ppp/5n2/8/5p2/2N1PN2/PPPP2PP/R1BQKB1R b KQkq", "id": 2621, "m": "e2e3 e7e5 b1c3 g8f6 f2f4 e5f4 g1f3"},
{"c": "A00", "n": "Van't Kruijs Opening: Keoni-Hiva Gambit, Alua Variation", "f": "r1bqkbnr/pppp1ppp/2n5/8/5p2/2N1PN2/PPPP2PP/R1BQKB1R b KQkq", "id": 2622, "m": "e2e3 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3"},
{"c": "A00", "n": "Van't Kruijs Opening: Keoni-Hiva Gambit, Ekolu Variation", "f": "rnbqkbnr/ppp2ppp/8/3p4/5p2/2N1PN2/PPPP2PP/R1BQKB1R b KQkq", "id": 2623, "m": "e2e3 e7e5 b1c3 d7d5 f2f4 e5f4 g1f3"},
{"c": "A00", "n": "Venezolana Opening", "f": "r1bqkbnr/pp1ppppp/2n5/2p5/8/2NP2P1/PPP1PP1P/R1BQKBNR b KQkq", "id": 2993, "m": "d2d3 c7c5 b1c3 b8c6 g2g3"},
{"c": "A00", "n": "Ware Opening", "f": "rnbqkbnr/pppppppp/8/8/P7/8/1PPPPPPP/RNBQKBNR b KQkq", "id": 2680, "m": "a2a4"},
{"c": "A00", "n": "Ware Opening: Cologne Gambit", "f": "r1bqkbnr/p1pnpppp/1p6/3p4/P2P4/2N5/1PP1PPPP/R1BQKBNR w KQkq", "id": 2679, "m": "a2a4 b7b6 d2d4 d7d5 b1c3 b8d7"},
{"c": "A00", "n": "Ware Opening: Meadow Hay Trap", "f": "rnbqkbnr/pppp1ppp/8/4p3/P7/R7/1PPPPPPP/1NBQKBNR b Kkq", "id": 2863, "m": "a2a4 e7e5 a1a3"},
{"c": "A00", "n": "Ware Opening: Ware Gambit", "f": "rnbqkbnr/ppp3pp/P7/3ppp2/8/4P3/1PPP1PPP/RNBQKBNR b KQkq", "id": 2681, "m": "a2a4 e7e5 a4a5 d7d5 e2e3 f7f5 a5a6"},
{"c": "A00", "n": "Ware Opening: Wing Gambit", "f": "rn1qkbnr/pbpppppp/8/1P6/8/8/1PPPPPPP/RNBQKBNR w KQkq", "id": 2682, "m": "a2a4 b7b5 a4b5 c8b7"},
{"c": "A01", "n": "Nimzo-Larsen Attack", "f": "rnbqkbnr/pppppppp/8/8/8/1P6/P1PPPPPP/RNBQKBNR b KQkq", "id": 1416, "m": "b2b3"},
{"c": "A01", "n": "Nimzo-Larsen Attack: Classical Variation", "f": "rnbqkbnr/ppp1pppp/8/3p4/8/1P6/P1PPPPPP/RNBQKBNR w KQkq", "id": 1413, "m": "b2b3 d7d5"},
{"c": "A01", "n": "Nimzo-Larsen Attack: Dutch Variation", "f": "rnbqkbnr/ppppp1pp/8/5p2/8/1P6/P1PPPPPP/RNBQKBNR w KQkq", "id": 1414, "m": "b2b3 f7f5"},
{"c": "A01", "n": "Nimzo-Larsen Attack: English Variation", "f": "rnbqkbnr/pp1ppppp/8/2p5/8/1P6/P1PPPPPP/RNBQKBNR w KQkq", "id": 1415, "m": "b2b3 c7c5"},
{"c": "A01", "n": "Nimzo-Larsen Attack: Indian Variation", "f": "rnbqkb1r/pppppppp/5n2/8/8/1P6/P1PPPPPP/RNBQKBNR w KQkq", "id": 1417, "m": "b2b3 g8f6"},
{"c": "A01", "n": "Nimzo-Larsen Attack: Modern Variation", "f": "rnbqkbnr/pppp1ppp/8/4p3/8/1P6/P1PPPPPP/RNBQKBNR w KQkq", "id": 1418, "m": "b2b3 e7e5"},
{"c": "A01", "n": "Nimzo-Larsen Attack: Modern Variation", "f": "rnbqkbnr/pppp1ppp/8/4p3/8/1P6/PBPPPPPP/RN1QKBNR b KQkq", "id": 3427, "m": "b2b3 e7e5 c1b2"},
{"c": "A01", "n": "Nimzo-Larsen Attack: Modern Variation", "f": "r1bqkbnr/pppp1ppp/2n5/4p3/8/1P6/PBPPPPPP/RN1QKBNR w KQkq", "id": 3428, "m": "b2b3 e7e5 c1b2 b8c6"},
{"c": "A01", "n": "Nimzo-Larsen Attack: Modern Variation", "f": "r1bqkbnr/pppp1ppp/2n5/4p3/8/1P2P3/PBPP1PPP/RN1QKBNR b KQkq", "id": 3429, "m": "b2b3 e7e5 c1b2 b8c6 e2e3"},
{"c": "A01", "n": "Nimzo-Larsen Attack: Norfolk Gambit", "f": "rnbqkb1r/pp2pppp/5n2/2pp4/4P3/1P3N2/PBPP1PPP/RN1QKB1R b KQkq", "id": 1419, "m": "g1f3 d7d5 b2b3 g8f6 c1b2 c7c5 e2e4"},
{"c": "A01", "n": "Nimzo-Larsen Attack: Norfolk Gambit", "f": "rnbqkbnr/pp2pppp/8/2pp4/4P3/1P3N2/P1PP1PPP/RNBQKB1R b KQkq", "id": 1420, "m": "g1f3 d7d5 b2b3 c7c5 e2e4"},
{"c": "A01", "n": "Nimzo-Larsen Attack: Pachman Gambit", "f": "r1bqkbnr/pppp1ppp/2n5/4p3/5P2/1P6/PBPPP1PP/RN1QKBNR b KQkq", "id": 1421, "m": "b2b3 e7e5 c1b2 b8c6 f2f4"},
{"c": "A01", "n": "Nimzo-Larsen Attack: Ringelbach Gambit", "f": "rnbqkbnr/pppp2pp/4p3/5p2/4P3/1P6/PBPP1PPP/RN1QKBNR b KQkq", "id": 1422, "m": "b2b3 f7f5 c1b2 e7e6 e2e4"},
{"c": "A01", "n": "Nimzo-Larsen Attack: Spike Variation", "f": "rnbqkb1r/pppppp1p/5np1/8/6P1/1P6/PBPPPP1P/RN1QKBNR b KQkq", "id": 1423, "m": "b2b3 g8f6 c1b2 g7g6 g2g4"},
{"c": "A01", "n": "Nimzo-Larsen Attack: Symmetrical Variation", "f": "rnbqkbnr/p1pppppp/1p6/8/8/1P6/P1PPPPPP/RNBQKBNR w KQkq", "id": 1424, "m": "b2b3 b7b6"},
{"c": "A01", "n": "Nimzowitsch-Larsen Attack: Polish Variation", "f": "rnbqkbnr/p1pppppp/8/1p6/8/1P6/P1PPPPPP/RNBQKBNR w KQkq", "id": 2996, "m": "b2b3 b7b5"},
{"c": "A02", "n": "Bird Opening", "f": "rnbqkbnr/pppppppp/8/8/5P2/8/PPPPP1PP/RNBQKBNR b KQkq", "id": 132, "m": "f2f4"},
{"c": "A02", "n": "Bird Opening: Batavo-Polish Attack", "f": "rnbqkb1r/pppppp1p/5np1/8/1P3P2/5N2/P1PPP1PP/RNBQKB1R b KQkq", "id": 125, "m": "f2f4 g8f6 g1f3 g7g6 b2b4"},
{"c": "A02", "n": "Bird Opening: Dutch Variation, Batavo Gambit", "f": "rnbqkbnr/pp2pppp/8/2p5/4pP2/5N2/PPPP2PP/RNBQKB1R w KQkq", "id": 127, "m": "e2e4 c7c5 f2f4 d7d5 g1f3 d5e4"},
{"c": "A02", "n": "Bird Opening: Dutch Variation, Dudweiler Gambit", "f": "rnbqkbnr/ppp1pppp/8/3p4/5PP1/8/PPPPP2P/RNBQKBNR b KQkq", "id": 128, "m": "f2f4 d7d5 g2g4"},
{"c": "A02", "n": "Bird Opening: From's Gambit", "f": "rnbqkbnr/pppp1ppp/8/4p3/5P2/8/PPPPP1PP/RNBQKBNR w KQkq", "id": 129, "m": "f2f4 e7e5"},
{"c": "A02", "n": "Bird Opening: From's Gambit, Bahr Gambit", "f": "rnbqkbnr/pppp1ppp/8/4p3/5P2/2N5/PPPPP1PP/R1BQKBNR b KQkq", "id": 2938, "m": "f2f4 e7e5 b1c3"},
{"c": "A02", "n": "Bird Opening: From's Gambit, Langheld Gambit", "f": "rnbqkb1r/ppp2ppp/3P1n2/8/8/8/PPPPP1PP/RNBQKBNR w KQkq", "id": 130, "m": "f2f4 e7e5 f4e5 d7d6 e5d6 g8f6"},
{"c": "A02", "n": "Bird Opening: From's Gambit, Lasker Variation", "f": "rnbqk1nr/ppp2p1p/3b4/6p1/8/5N2/PPPPP1PP/RNBQKB1R w KQkq", "id": 131, "m": "f2f4 e7e5 f4e5 d7d6 e5d6 f8d6 g1f3 g7g5"},
{"c": "A02", "n": "Bird Opening: From's Gambit, Lipke Variation", "f": "rnbqk2r/ppp2ppp/3b3n/8/3P4/5N2/PPP1P1PP/RNBQKB1R b KQkq", "id": 2997, "m": "f2f4 e7e5 f4e5 d7d6 e5d6 f8d6 g1f3 g8h6 d2d4"},
{"c": "A02", "n": "Bird Opening: Hobbs Gambit", "f": "rnbqkbnr/pppppp1p/8/6p1/5P2/8/PPPPP1PP/RNBQKBNR w KQkq", "id": 133, "m": "f2f4 g7g5"},
{"c": "A02", "n": "Bird Opening: Hobbs-Zilbermints Gambit", "f": "rnbqkbnr/pppppp2/7p/6p1/5P2/5N2/PPPPP1PP/RNBQKB1R w KQkq", "id": 134, "m": "f2f4 h7h6 g1f3 g7g5"},
{"c": "A02", "n": "Bird Opening: Lasker Gambit", "f": "rnbqkbnr/pppp2pp/5p2/4P3/8/8/PPPPP1PP/RNBQKBNR w KQkq", "id": 137, "m": "f2f4 e7e5 f4e5 f7f6"},
{"c": "A02", "n": "Bird Opening: Myers Defense", "f": "rnbqkbnr/p1pppppp/8/1p6/5P2/8/PPPPP1PP/RNBQKBNR w KQkq", "id": 2782, "m": "f2f4 b7b5"},
{"c": "A02", "n": "Bird Opening: Platz Gambit", "f": "rnbqkb1r/ppppnppp/8/4P3/8/8/PPPPP1PP/RNBQKBNR w KQkq", "id": 141, "m": "f2f4 e7e5 f4e5 g8e7"},
{"c": "A02", "n": "Bird Opening: Schlechter Gambit", "f": "r1bqkbnr/pppp1ppp/2n5/4P3/8/8/PPPPP1PP/RNBQKBNR w KQkq", "id": 142, "m": "f2f4 e7e5 f4e5 b8c6"},
{"c": "A02", "n": "Bird Opening: Siegener Gambit", "f": "rnbqkbnr/pp1p1ppp/8/2p5/3p1P2/2P2N2/PP2P1PP/RNBQKB1R b KQkq", "id": 143, "m": "f2f4 e7e5 d2d4 e5d4 g1f3 c7c5 c2c3"},
{"c": "A02", "n": "Bird Opening: Sturm Gambit", "f": "rnbqkbnr/ppp1pppp/8/3p4/2P2P2/8/PP1PP1PP/RNBQKBNR b KQkq", "id": 145, "m": "f2f4 d7d5 c2c4"},
{"c": "A02", "n": "Bird Opening: Swiss Gambit", "f": "rnbqkb1r/ppppp1pp/5n2/8/4pPP1/2N5/PPPP3P/R1BQKBNR b KQkq", "id": 2998, "m": "f2f4 f7f5 e2e4 f5e4 b1c3 g8f6 g2g4"},
{"c": "A02", "n": "Bird Opening: Thomas Gambit", "f": "rnbqkb1r/pp2pppp/5n2/2p5/3p1P2/1P2PN2/PBPP2PP/RN1QKB1R b KQkq", "id": 147, "m": "f2f4 d7d5 b2b3 g8f6 c1b2 d5d4 g1f3 c7c5 e2e3"},
{"c": "A02", "n": "Bird Opening: Wagner-Zwitersch Gambit", "f": "rnbqkbnr/ppppp1pp/8/5p2/4PP2/8/PPPP2PP/RNBQKBNR b KQkq", "id": 148, "m": "f2f4 f7f5 e2e4"},
{"c": "A02", "n": "Bird Opening: Williams Gambit", "f": "rnbqkb1r/ppp1pppp/5n2/8/4pP2/2N5/PPPPQ1PP/R1B1KBNR b KQkq", "id": 149, "m": "f2f4 d7d5 e2e4 d5e4 b1c3 g8f6 d1e2"},
{"c": "A02", "n": "Bird Opening: Williams-Zilbermints Gambit", "f": "rnbqkb1r/ppp1pppp/5n2/8/4pP2/2N5/PPPPN1PP/R1BQKB1R b KQkq", "id": 150, "m": "f2f4 d7d5 e2e4 d5e4 b1c3 g8f6 g1e2"},
{"c": "A02", "n": "System: Double Duck Formation", "f": "rnbqkbnr/ppp1p1pp/8/3p1p2/3P1P2/8/PPP1P1PP/RNBQKBNR w KQkq", "id": 2536, "m": "f2f4 f7f5 d2d4 d7d5"},
{"c": "A03", "n": "Bird Opening", "f": "rnbqkb1r/pppppppp/5n2/8/5P2/8/PPPPP1PP/RNBQKBNR w KQkq", "id": 3430, "m": "f2f4 g8f6"},
{"c": "A03", "n": "Bird Opening: Dutch Variation", "f": "rnbqkbnr/ppp1pppp/8/3p4/5P2/8/PPPPP1PP/RNBQKBNR w KQkq", "id": 126, "m": "f2f4 d7d5"},
{"c": "A03", "n": "Bird Opening: Horsefly Defense", "f": "rnbqkb1r/pppppppp/7n/8/5P2/8/PPPPP1PP/RNBQKBNR w KQkq", "id": 135, "m": "f2f4 g8h6"},
{"c": "A03", "n": "Bird Opening: Lasker Variation", "f": "rnbqkb1r/pp2pppp/5n2/2pp4/5P2/4PN2/PPPP2PP/RNBQKB1R w KQkq", "id": 138, "m": "f2f4 d7d5 g1f3 g8f6 e2e3 c7c5"},
{"c": "A03", "n": "Bird Opening: Mujannah", "f": "rnbqkb1r/pppppppp/5n2/8/2P2P2/8/PP1PP1PP/RNBQKBNR b KQkq", "id": 140, "m": "f2f4 g8f6 c2c4"},
{"c": "A03", "n": "Bird Opening: Williams Gambit", "f": "rnbqkbnr/ppp1pppp/8/3p4/4PP2/8/PPPP2PP/RNBQKBNR b KQkq", "id": 2999, "m": "f2f4 d7d5 e2e4"},
{"c": "A04", "n": "Polish Opening: Zukertort System", "f": "rnbqkb1r/pppppppp/5n2/8/1P6/5N2/P1PPPPPP/RNBQKB1R b KQkq", "id": 1594, "m": "g1f3 g8f6 b2b4"},
{"c": "A04", "n": "Réti Opening", "f": "rnbqkbnr/pppppppp/8/8/8/5N2/PPPPPPPP/RNBQKB1R b KQkq", "id": 2688, "m": "g1f3"},
{"c": "A04", "n": "Réti Opening", "f": "rnbqkb1r/pppppppp/5n2/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq", "id": 2703, "m": "g1f3 g8f6"},
{"c": "A04", "n": "Zukertort Defense: Drunken Cavalry Variation", "f": "r1bqkb1r/pppppppp/n6n/8/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq", "id": 2879, "m": "g1f3 b8a6 e2e4 g8h6"},
{"c": "A04", "n": "Zukertort Defense: Kingside Variation", "f": "rnbqkb1r/pppppp1p/6pn/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq", "id": 2878, "m": "d2d4 g7g6 g1f3 g8h6"},
{"c": "A04", "n": "Zukertort Defense: Sicilian Knight Variation", "f": "r1bqkbnr/pp1ppppp/n7/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq", "id": 2880, "m": "e2e4 b8a6 g1f3 c7c5"},
{"c": "A04", "n": "Zukertort Opening", "f": "r1bqkb1r/pppppppp/2n2n2/8/8/2N2N2/PPPPPPPP/R1BQKB1R w KQkq", "id": 1784, "m": "g1f3 g8f6 b1c3 b8c6"},
{"c": "A04", "n": "Zukertort Opening: Arctic Defense", "f": "rnbqkbnr/ppppp1pp/5p2/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq", "id": 2876, "m": "g1f3 f7f6"},
{"c": "A04", "n": "Zukertort Opening: Arctic Defense, Drunken Knight Variation", "f": "rnbqkb1r/pppppnpp/5p2/8/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq", "id": 2877, "m": "g1f3 f7f6 e2e4 g8h6 d2d4 h6f7"},
{"c": "A04", "n": "Zukertort Opening: Basman Defense", "f": "rnbqkbnr/ppppppp1/7p/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq", "id": 2800, "m": "g1f3 h7h6"},
{"c": "A04", "n": "Zukertort Opening: Black Mustang Defense", "f": "r1bqkbnr/pppppppp/2n5/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq", "id": 2685, "m": "g1f3 b8c6"},
{"c": "A04", "n": "Zukertort Opening: Dutch Variation", "f": "rnbqkbnr/ppppp1pp/8/5p2/8/5N2/PPPPPPPP/RNBQKB1R w KQkq", "id": 2687, "m": "g1f3 f7f5"},
{"c": "A04", "n": "Zukertort Opening: Herrstrom Gambit", "f": "rnbqkbnr/pppppp1p/8/6p1/8/5N2/PPPPPPPP/RNBQKB1R w KQkq", "id": 2690, "m": "g1f3 g7g5"},
{"c": "A04", "n": "Zukertort Opening: Kingside Fianchetto", "f": "rnbqkbnr/pppppp1p/6p1/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq", "id": 2799, "m": "g1f3 g7g6"},
{"c": "A04", "n": "Zukertort Opening: Lemberger Gambit", "f": "rnbqkb1r/pppppppp/5n2/8/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq", "id": 2691, "m": "g1f3 g8f6 e2e4"},
{"c": "A04", "n": "Zukertort Opening: Lisitsyn Gambit", "f": "rnbqkbnr/ppppp1pp/8/5p2/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq", "id": 2692, "m": "g1f3 f7f5 e2e4"},
{"c": "A04", "n": "Zukertort Opening: Lisitsyn Gambit Deferred", "f": "rnbqkb1r/ppppp1pp/5n2/5p2/4P3/3P1N2/PPP2PPP/RNBQKB1R b KQkq", "id": 2693, "m": "g1f3 f7f5 d2d3 g8f6 e2e4"},
{"c": "A04", "n": "Zukertort Opening: Myers Polish Attack", "f": "rnbqkb1r/pppppp1p/5np1/8/PP6/5N2/2PPPPPP/RNBQKB1R b KQkq", "id": 2779, "m": "g1f3 g8f6 a2a4 g7g6 b2b4"},
{"c": "A04", "n": "Zukertort Opening: Nimzo-Larsen Variation", "f": "rnbqkb1r/pppppppp/5n2/8/8/1P3N2/P1PPPPPP/RNBQKB1R b KQkq", "id": 1581, "m": "g1f3 g8f6 b2b3"},
{"c": "A04", "n": "Zukertort Opening: Pachman Gambit", "f": "rnbqkbnr/pp2pppp/8/2p5/2p5/1P2PN2/P2P1PPP/RNBQKB1R b KQkq", "id": 2696, "m": "g1f3 d7d5 e2e3 c7c5 c2c4 d5c4 b2b3"},
{"c": "A04", "n": "Zukertort Opening: Pirc Invitation", "f": "rnbqkbnr/ppp1pppp/3p4/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq", "id": 2797, "m": "g1f3 d7d6"},
{"c": "A04", "n": "Zukertort Opening: Polish Defense", "f": "rnbqkbnr/p1pppppp/8/1p6/8/5N2/PPPPPPPP/RNBQKB1R w KQkq", "id": 2793, "m": "g1f3 b7b5"},
{"c": "A04", "n": "Zukertort Opening: Queen's Gambit Invitation", "f": "rnbqkbnr/pppp1ppp/4p3/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq", "id": 2798, "m": "g1f3 e7e6"},
{"c": "A04", "n": "Zukertort Opening: Queenside Fianchetto Variation", "f": "rnbqkbnr/p1pppppp/1p6/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq", "id": 2794, "m": "g1f3 b7b6"},
{"c": "A04", "n": "Zukertort Opening: Quiet System", "f": "rnbqkb1r/pppppppp/5n2/8/8/4PN2/PPPP1PPP/RNBQKB1R b KQkq", "id": 1785, "m": "g1f3 g8f6 e2e3"},
{"c": "A04", "n": "Zukertort Opening: Regina-Nu Gambit", "f": "rnbqkbnr/pp2pppp/8/2p5/2p5/1PN2N2/P2PPPPP/R1BQKB1R b KQkq", "id": 2719, "m": "g1f3 d7d5 b2b3 c7c5 c2c4 d5c4 b1c3"},
{"c": "A04", "n": "Zukertort Opening: Ross Gambit", "f": "rnbqkbnr/pppp1ppp/8/4p3/8/5N2/PPPPPPPP/RNBQKB1R w KQkq", "id": 2764, "m": "g1f3 e7e5"},
{"c": "A04", "n": "Zukertort Opening: Shabalov Gambit", "f": "rnbqkbnr/3p1ppp/p3p3/1pp5/2P5/2N2NP1/PP1PPP1P/R1BQKB1R w KQkq", "id": 2701, "m": "g1f3 e7e6 c2c4 a7a6 b1c3 c7c5 g2g3 b7b5"},
{"c": "A04", "n": "Zukertort Opening: Sicilian Invitation", "f": "rnbqkbnr/pp1ppppp/8/2p5/8/5N2/PPPPPPPP/RNBQKB1R w KQkq", "id": 2796, "m": "g1f3 c7c5"},
{"c": "A04", "n": "Zukertort Opening: Slav Invitation", "f": "rnbqkbnr/pp1ppppp/2p5/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq", "id": 2795, "m": "g1f3 c7c6"},
{"c": "A04", "n": "Zukertort Opening: Speelsmet Gambit", "f": "rnbqkbnr/pp1ppppp/8/8/3p4/4PN2/PPP2PPP/RNBQKB1R b KQkq", "id": 2702, "m": "g1f3 c7c5 d2d4 c5d4 e2e3"},
{"c": "A04", "n": "Zukertort Opening: St. George Defense", "f": "rnbqkbnr/1ppppppp/p7/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq", "id": 2792, "m": "g1f3 a7a6"},
{"c": "A04", "n": "Zukertort Opening: The Walrus", "f": "r1bqkbnr/ppp2ppp/2p5/8/8/8/PPPPPPPP/RNBQKB1R w KQkq", "id": 2966, "m": "g1f3 e7e5 f3e5 b8c6 e5c6 d7c6"},
{"c": "A04", "n": "Zukertort Opening: Vos Gambit", "f": "rnbqkbnr/ppp2ppp/3p4/4p3/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq", "id": 2705, "m": "g1f3 d7d6 d2d4 e7e5"},
{"c": "A04", "n": "Zukertort Opening: Wade Defense", "f": "rn1qkbnr/ppp1pppp/3p4/8/4P1b1/5N2/PPPP1PPP/RNBQKB1R w KQkq", "id": 2706, "m": "g1f3 d7d6 e2e4 c8g4"},
{"c": "A04", "n": "Zukertort Opening: Ware Defense", "f": "rnbqkbnr/1ppppppp/8/p7/8/5N2/PPPPPPPP/RNBQKB1R w KQkq", "id": 2773, "m": "g1f3 a7a5"},
{"c": "A05", "n": "King's Indian Attack: Smyslov Variation", "f": "rnbqkb1r/pppppp1p/5np1/8/1P6/5NP1/P1PPPP1P/RNBQKB1R b KQkq", "id": 1134, "m": "g1f3 g8f6 g2g3 g7g6 b2b4"},
{"c": "A05", "n": "King's Indian Attack: Spassky Variation", "f": "rnbqkb1r/p1pppppp/5n2/1p6/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq", "id": 1135, "m": "g1f3 g8f6 g2g3 b7b5"},
{"c": "A05", "n": "King's Indian Attack: Symmetrical Defense", "f": "rnbqkb1r/pppppp1p/5np1/8/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq", "id": 1136, "m": "g1f3 g8f6 g2g3 g7g6"},
{"c": "A05", "n": "King's Indian Attack: Wahls Defense", "f": "rnbq1rk1/ppp1ppbp/5np1/3p4/8/3P1NP1/PPP1PPBP/RNBQ1RK1 w -", "id": 1137, "m": "g1f3 g8f6 g2g3 g7g6 f1g2 f8g7 e1g1 e8g8 d2d3 d7d5"},
{"c": "A06", "n": "Nimzo-Larsen Attack: Classical Variation", "f": "rnbqkbnr/ppp1pppp/8/3p4/8/1P3N2/P1PPPPPP/RNBQKB1R b KQkq", "id": 3426, "m": "g1f3 d7d5 b2b3"},
{"c": "A06", "n": "Réti Opening", "f": "rnbqkbnr/ppp1pppp/8/3p4/8/5N2/PPPPPPPP/RNBQKB1R w KQkq", "id": 2697, "m": "g1f3 d7d5"},
{"c": "A06", "n": "Zukertort Opening: Ampel Variation", "f": "rnbqkbnr/ppp1pppp/8/3p4/8/5N2/PPPPPPPP/RNBQKBR1 b Qkq", "id": 2684, "m": "g1f3 d7d5 h1g1"},
{"c": "A06", "n": "Zukertort Opening: Old Indian Attack", "f": "rnbqkbnr/ppp1pppp/8/3p4/8/3P1N2/PPP1PPPP/RNBQKB1R b KQkq", "id": 2695, "m": "g1f3 d7d5 d2d3"},
{"c": "A06", "n": "Zukertort Opening: Reversed Mexican Defense", "f": "rnbqkbnr/ppp1pppp/8/3p4/8/2N2N2/PPPPPPPP/R1BQKB1R b KQkq", "id": 2698, "m": "b1c3 d7d5 g1f3"},
{"c": "A06", "n": "Zukertort Opening: Santasiere's Folly", "f": "rnbqkbnr/ppp1pppp/8/3p4/1P6/5N2/P1PPPPPP/RNBQKB1R b KQkq", "id": 2700, "m": "b2b4 d7d5 g1f3"},
{"c": "A06", "n": "Zukertort Opening: Tennison Gambit", "f": "rnbqkbnr/ppp1pppp/8/3p4/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq", "id": 2704, "m": "e2e4 d7d5 g1f3"},
{"c": "A06", "n": "Zukertort Opening: The Potato", "f": "rnbqkbnr/ppp1pppp/8/3p4/P7/5N2/1PPPPPPP/RNBQKB1R b KQkq", "id": 2731, "m": "g1f3 d7d5 a2a4"},
{"c": "A07", "n": "King's Indian Attack", "f": "rnbqkbnr/ppp1pppp/8/3p4/8/5NP1/PPPPPP1P/RNBQKB1R b KQkq", "id": 1126, "m": "g1f3 d7d5 g2g3"},
{"c": "A07", "n": "King's Indian Attack: Double Fianchetto", "f": "rnbqkbnr/ppp1pp1p/6p1/3p4/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq", "id": 1125, "m": "g1f3 d7d5 g2g3 g7g6"},
{"c": "A07", "n": "King's Indian Attack: Keres Variation", "f": "r2qkbnr/pppnpppp/8/3p4/6b1/5NP1/PPPPPPBP/RNBQK2R w KQkq", "id": 1127, "m": "g1f3 d7d5 g2g3 c8g4 f1g2 b8d7"},
{"c": "A07", "n": "King's Indian Attack: Keres Variation", "f": "rn1qkbnr/ppp1pppp/8/3p4/6b1/5NP1/PPPPPP1P/RNBQKB1R w KQkq", "id": 3432, "m": "g1f3 d7d5 g2g3 c8g4"},
{"c": "A07", "n": "King's Indian Attack: Omega-Delta Gambit", "f": "rnbqkbnr/ppp2ppp/8/3pp3/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq", "id": 1128, "m": "g1f3 d7d5 g2g3 e7e5"},
{"c": "A07", "n": "King's Indian Attack: Pachman System", "f": "rnbqk2r/ppp1npbp/6p1/3pp3/8/3P1NP1/PPP1PPBP/RNBQ1RK1 w kq", "id": 1129, "m": "g1f3 d7d5 g2g3 g7g6 f1g2 f8g7 e1g1 e7e5 d2d3 g8e7"},
{"c": "A07", "n": "King's Indian Attack: Sicilian Variation", "f": "rnbqkbnr/pp2pppp/8/2pp4/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq", "id": 1133, "m": "g1f3 d7d5 g2g3 c7c5"},
{"c": "A07", "n": "King's Indian Attack: Yugoslav Variation", "f": "rn1qkb1r/pp2pppp/2p2n2/3p4/6b1/5NP1/PPPPPPBP/RNBQ1RK1 w kq", "id": 1138, "m": "g1f3 g8f6 g2g3 d7d5 f1g2 c7c6 e1g1 c8g4"},
{"c": "A08", "n": "King's Indian Attack", "f": "rnbqkb1r/ppp1pppp/5n2/3p4/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq", "id": 3434, "m": "g1f3 g8f6 g2g3 d7d5"},
{"c": "A08", "n": "King's Indian Attack: French Variation", "f": "r1bqkbnr/pp2pppp/2n5/2pp4/8/5NP1/PPPPPPBP/RNBQK2R w KQkq", "id": 3435, "m": "g1f3 d7d5 g2g3 c7c5 f1g2 b8c6"},
{"c": "A08", "n": "King's Indian Attack: Sicilian Variation", "f": "rnbqkbnr/pp2pppp/8/2pp4/8/5NP1/PPPPPPBP/RNBQK2R b KQkq", "id": 1131, "m": "g1f3 d7d5 g2g3 c7c5 f1g2"},
{"c": "A08", "n": "King's Indian Attack: Sicilian Variation", "f": "r1bq1rk1/pp2bppp/2n1pn2/2pp4/4P3/3P1NP1/PPPN1PBP/R1BQR1K1 b -", "id": 1132, "m": "e2e4 e7e6 d2d3 d7d5 b1d2 g8f6 g1f3 c7c5 g2g3 b8c6 f1g2 f8e7 e1g1 e8g8 f1e1"},
{"c": "A09", "n": "Réti Opening", "f": "rnbqkbnr/ppp1pppp/8/3p4/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq", "id": 1848, "m": "g1f3 d7d5 c2c4"},
{"c": "A09", "n": "Réti Opening: Advance Variation", "f": "rnbqkbnr/ppp1pppp/8/8/2Pp4/5N2/PP1PPPPP/RNBQKB1R w KQkq", "id": 1836, "m": "g1f3 d7d5 c2c4 d5d4"},
{"c": "A09", "n": "Réti Opening: Advance Variation, Michel Gambit", "f": "rnbqkbnr/pp2pppp/8/2p5/1PPp4/5N2/P2PPPPP/RNBQKB1R w KQkq", "id": 1837, "m": "g1f3 d7d5 c2c4 d5d4 b2b4 c7c5"},
{"c": "A09", "n": "Réti Opening: Penguin Variation", "f": "rnbqkbnr/ppp1pppp/8/8/2Pp4/5N2/PP1PPPPP/RNBQKBR1 b Qkq", "id": 1849, "m": "g1f3 d7d5 c2c4 d5d4 h1g1"},
{"c": "A09", "n": "Réti Opening: Réti Accepted", "f": "rnbqkbnr/ppp1pppp/8/8/2p5/5N2/PP1PPPPP/RNBQKB1R w KQkq", "id": 1850, "m": "g1f3 d7d5 c2c4 d5c4"},
{"c": "A09", "n": "Réti Opening: Réti Gambit, Keres Variation", "f": "rn1qkbnr/ppp1pppp/4b3/8/2p5/4PN2/PP1P1PPP/RNBQKB1R w KQkq", "id": 3000, "m": "g1f3 d7d5 c2c4 d5c4 e2e3 c8e6"},
{"c": "A09", "n": "Réti Opening: Reversed Blumenfeld Gambit", "f": "rnbqkbnr/pp2pppp/8/2p5/1PPp4/4PN2/P2P1PPP/RNBQKB1R b KQkq", "id": 1851, "m": "g1f3 d7d5 c2c4 d5d4 e2e3 c7c5 b2b4"},
{"c": "A09", "n": "Réti Opening: Zilbermints Gambit", "f": "rnbqkbnr/p1p1pppp/8/1p1p4/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq", "id": 1853, "m": "g1f3 d7d5 c2c4 b7b5"},
{"c": "A10", "n": "English Opening", "f": "rnbqkbnr/pppppppp/8/8/2P5/8/PP1PPPPP/RNBQKBNR b KQkq", "id": 464, "m": "c2c4"},
{"c": "A10", "n": "English Opening: 2. g4", "f": "rnbqkb1r/pppppppp/5n2/8/2P3P1/8/PP1PPP1P/RNBQKBNR b KQkq", "id": 2901, "m": "c2c4 g8f6 g2g4"},
{"c": "A10", "n": "English Opening: Achilles-Omega Gambit", "f": "rnbqkb1r/pppppppp/5n2/8/2P1P3/8/PP1P1PPP/RNBQKBNR b KQkq", "id": 2902, "m": "e2e4 g8f6 c2c4"},
{"c": "A10", "n": "English Opening: Adorjan Defense", "f": "rnbqkbnr/pppp1p1p/6p1/4p3/2P1P3/8/PP1P1PPP/RNBQKBNR w KQkq", "id": 422, "m": "c2c4 g7g6 e2e4 e7e5"},
{"c": "A10", "n": "English Opening: Anglo-Dutch Defense", "f": "rnbqkbnr/ppppp1pp/8/5p2/2P5/8/PP1PPPPP/RNBQKBNR w KQkq", "id": 433, "m": "c2c4 f7f5"},
{"c": "A10", "n": "English Opening: Anglo-Dutch Defense, Hickmann Gambit", "f": "rnbqkbnr/ppppp1pp/8/5p2/2P1P3/8/PP1P1PPP/RNBQKBNR b KQkq", "id": 434, "m": "c2c4 f7f5 e2e4"},
{"c": "A10", "n": "English Opening: Anglo-Dutch Variation, Chabanon Gambit", "f": "rnbqkbnr/ppp1p1pp/3p4/5p2/2P1P3/5N2/PP1P1PPP/RNBQKB1R b KQkq", "id": 435, "m": "c2c4 f7f5 g1f3 d7d6 e2e4"},
{"c": "A10", "n": "English Opening: Anglo-Dutch Variation, Ferenc Gambit", "f": "rnbqkb1r/ppppp1pp/5n2/5p2/2P1P3/2N5/PP1P1PPP/R1BQKBNR b KQkq", "id": 2965, "m": "c2c4 f7f5 b1c3 g8f6 e2e4"},
{"c": "A10", "n": "English Opening: Anglo-Lithuanian Variation", "f": "r1bqkbnr/pppppppp/2n5/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq", "id": 454, "m": "c2c4 b8c6"},
{"c": "A10", "n": "English Opening: Anglo-Scandinavian Defense", "f": "rnbqkbnr/ppp1pppp/8/3p4/2P5/8/PP1PPPPP/RNBQKBNR w KQkq", "id": 455, "m": "c2c4 d7d5"},
{"c": "A10", "n": "English Opening: Anglo-Scandinavian Defense, Loehn Gambit", "f": "rnbqkbnr/ppp2ppp/4p3/3P4/8/8/PP1PPPPP/RNBQKBNR w KQkq", "id": 456, "m": "c2c4 d7d5 c4d5 e7e6"},
{"c": "A10", "n": "English Opening: Anglo-Scandinavian Defense, Malvinas Variation", "f": "rnb1kbnr/ppp1pppp/8/q7/8/2N5/PP1PPPPP/R1BQKBNR w KQkq", "id": 2739, "m": "c2c4 d7d5 c4d5 d8d5 b1c3 d5a5"},
{"c": "A10", "n": "English Opening: Anglo-Scandinavian Defense, Schulz Gambit", "f": "rnbqkb1r/ppp1pppp/5n2/3P4/8/8/PP1PPPPP/RNBQKBNR w KQkq", "id": 457, "m": "c2c4 d7d5 c4d5 g8f6"},
{"c": "A10", "n": "English Opening: Great Snake Variation", "f": "rnbqkbnr/pppppp1p/6p1/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq", "id": 466, "m": "c2c4 g7g6"},
{"c": "A10", "n": "English Opening: Jaenisch Gambit", "f": "rnbqkbnr/p1pppppp/8/1p6/2P5/8/PP1PPPPP/RNBQKBNR w KQkq", "id": 467, "m": "c2c4 b7b5"},
{"c": "A10", "n": "English Opening: Myers Variation", "f": "rnbqk1nr/ppppppbp/8/6p1/2PP4/8/PP2PPPP/RNBQKBNR w KQkq", "id": 504, "m": "c2c4 g7g5 d2d4 f8g7"},
{"c": "A10", "n": "English Opening: Porcupine Variation", "f": "rnbqkb1r/ppppp1pp/5n2/8/2P1p1P1/2N5/PP1P1P1P/R1BQKBNR b KQkq", "id": 505, "m": "c2c4 f7f5 b1c3 g8f6 e2e4 f5e4 g2g4"},
{"c": "A10", "n": "English Opening: Wade Gambit", "f": "rnbqkbnr/ppppp1pp/8/5p2/2P3P1/8/PP1PPP1P/RNBQKBNR b KQkq", "id": 531, "m": "c2c4 f7f5 g2g4"},
{"c": "A10", "n": "English Opening: Zilbermints Gambit", "f": "rnbqkbnr/pppp1p1p/8/4p1p1/2PP4/8/PP2PPPP/RNBQKBNR w KQkq", "id": 533, "m": "c2c4 g7g5 d2d4 e7e5"},
{"c": "A11", "n": "English Opening: Anglo-Indian Defense, Romanishin Variation", "f": "rnbqkb1r/1ppp1ppp/p3pn2/8/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq", "id": 452, "m": "g1f3 g8f6 c2c4 e7e6 g2g3 a7a6"},
{"c": "A11", "n": "English Opening: Caro-Kann Defensive System", "f": "rnbqkbnr/pp1ppppp/2p5/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq", "id": 458, "m": "c2c4 c7c6"},
{"c": "A12", "n": "Réti Opening: Anglo-Slav Variation, Bled Variation", "f": "rnbqkb1r/pp2pp1p/2p2np1/3p4/2P5/1P3N2/PB1PPPPP/RN1QKB1R w KQkq", "id": 1838, "m": "g1f3 d7d5 b2b3 g8f6 c1b2 g7g6 c2c4 c7c6"},
{"c": "A12", "n": "Réti Opening: Anglo-Slav Variation, Bogoljubov Variation", "f": "rnbqkb1r/pp2pppp/2p2n2/3p4/2P5/1P3N2/PB1PPPPP/RN1QKB1R b KQkq", "id": 1839, "m": "g1f3 g8f6 c2c4 c7c6 b2b3 d7d5 c1b2"},
{"c": "A12", "n": "Réti Opening: Anglo-Slav Variation, Bogoljubov Variation", "f": "rn1qkbnr/pp2pppp/2p5/3p4/2P3b1/1P3N2/P2PPPPP/RNBQKB1R w KQkq", "id": 1841, "m": "g1f3 d7d5 c2c4 c7c6 b2b3 c8g4"},
{"c": "A12", "n": "Réti Opening: Anglo-Slav Variation, Bogoljubov Variation", "f": "rnbqkbnr/pp2pppp/2p5/3p4/2P5/1P3N2/P2PPPPP/RNBQKB1R b KQkq", "id": 1842, "m": "g1f3 d7d5 c2c4 c7c6 b2b3"},
{"c": "A12", "n": "Réti Opening: Anglo-Slav Variation, Bogoljubov Variation, Stonewall Line", "f": "rnbq1rk1/pp2bppp/2p1pn2/3p4/2P5/1P3NP1/PB1PPPBP/RN1Q1RK1 b -", "id": 1840, "m": "g1f3 d7d5 c2c4 e7e6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 b2b3 c7c6 c1b2"},
{"c": "A12", "n": "Réti Opening: Anglo-Slav Variation, Capablanca Variation", "f": "rn1qkb1r/pp2pppp/2p2n2/3p4/2P3b1/1P3N2/PB1PPPPP/RN1QKB1R w KQkq", "id": 1843, "m": "c2c4 g8f6 g1f3 c7c6 b2b3 d7d5 c1b2 c8g4"},
{"c": "A12", "n": "Réti Opening: Anglo-Slav Variation, London Defensive System", "f": "rn1qkb1r/pp2pppp/2p2n2/3p1b2/2P5/1P3NP1/P2PPP1P/RNBQKB1R w KQkq", "id": 1844, "m": "c2c4 g8f6 g2g3 c7c6 g1f3 d7d5 b2b3 c8f5"},
{"c": "A12", "n": "Réti Opening: Anglo-Slav Variation, New York System", "f": "rn1qkb1r/pp2pppp/2p2n2/3p1b2/2P5/1P3N2/PB1PPPPP/RN1QKB1R w KQkq", "id": 1845, "m": "g1f3 g8f6 c2c4 c7c6 b2b3 d7d5 c1b2 c8f5"},
{"c": "A12", "n": "Réti Opening: Anglo-Slav Variation, Torre System", "f": "rn1qkb1r/pp2pppp/2p2n2/3p4/2P3b1/1P3NP1/P2PPP1P/RNBQKB1R w KQkq", "id": 1846, "m": "c2c4 g8f6 g2g3 c7c6 g1f3 d7d5 b2b3 c8g4"},
{"c": "A13", "n": "English Opening: Agincourt Defense", "f": "rnbqkbnr/pppp1ppp/4p3/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq", "id": 423, "m": "c2c4 e7e6"},
{"c": "A13", "n": "English Opening: Agincourt Defense", "f": "rnbqkbnr/ppp2ppp/4p3/3p4/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq", "id": 426, "m": "c2c4 e7e6 g1f3 d7d5"},
{"c": "A13", "n": "English Opening: Agincourt Defense", "f": "rnbqkbnr/pppp1ppp/4p3/8/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq", "id": 3436, "m": "c2c4 e7e6 g1f3"},
{"c": "A13", "n": "English Opening: Agincourt Defense, Bogoljubov Defense", "f": "rnbqk2r/ppp2ppp/3bpn2/3p4/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq", "id": 1847, "m": "g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8d6"},
{"c": "A13", "n": "English Opening: Agincourt Defense, Catalan Defense", "f": "rnbqkbnr/pp3ppp/4p3/2pp4/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq", "id": 2778, "m": "g1f3 d7d5 c2c4 e7e6 g2g3 c7c5"},
{"c": "A13", "n": "English Opening: Agincourt Defense, Catalan Defense Accepted", "f": "rnbqkb1r/ppp2ppp/4pn2/8/2p5/5NP1/PP1PPPBP/RNBQK2R w KQkq", "id": 429, "m": "g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 d5c4"},
{"c": "A13", "n": "English Opening: Agincourt Defense, Catalan Defense, Semi-Slav Defense", "f": "rnbqkb1r/pp3ppp/2p1pn2/3p4/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq", "id": 428, "m": "g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 c7c6"},
{"c": "A13", "n": "English Opening: Agincourt Defense, Kurajica Defense", "f": "rnbqkbnr/pp3ppp/2p1p3/3p4/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq", "id": 427, "m": "g1f3 d7d5 c2c4 e7e6 g2g3 c7c6"},
{"c": "A13", "n": "English Opening: Agincourt Defense, Wimpy System", "f": "rnbqkb1r/pp3ppp/4pn2/2pp4/2P5/1P2PN2/PB1P1PPP/RN1QKB1R b KQkq", "id": 432, "m": "g1f3 g8f6 c2c4 e7e6 b2b3 d7d5 c1b2 c7c5 e2e3"},
{"c": "A13", "n": "English Opening: Anglo-Indian Defense, Queen's Indian Formation", "f": "rn1qkb1r/pbpp1ppp/1p2pn2/8/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq", "id": 2789, "m": "g1f3 g8f6 c2c4 e7e6 g2g3 b7b6 f1g2 c8b7"},
{"c": "A13", "n": "English Opening: Neo-Catalan", "f": "rnbqkb1r/ppp2ppp/4pn2/3p4/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq", "id": 3001, "m": "g1f3 g8f6 c2c4 e7e6 g2g3 d7d5"},
{"c": "A13", "n": "English Opening: Romanishin Gambit", "f": "rnbqkb1r/2pp1ppp/p3pn2/1p6/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq", "id": 3437, "m": "g1f3 g8f6 c2c4 e7e6 g2g3 a7a6 f1g2 b7b5"},
{"c": "A14", "n": "English Opening: Agincourt Defense, Catalan Defense", "f": "rn1qkbnr/pbp2ppp/1p2p3/3p4/2P5/5NP1/PP1PPPBP/RNBQ1RK1 b kq", "id": 2790, "m": "g1f3 d7d5 c2c4 e7e6 g2g3 b7b6 f1g2 c8b7 e1g1"},
{"c": "A14", "n": "English Opening: Agincourt Defense, Keres Defense", "f": "r1bqk2r/pp2bppp/2n1p3/2pn4/8/2N2NP1/PP1PPPBP/R1BQ1RK1 w kq", "id": 425, "m": "c2c4 c7c5 g1f3 g8f6 b1c3 e7e6 g2g3 d7d5 c4d5 f6d5 f1g2 b8c6 e1g1 f8e7"},
{"c": "A14", "n": "English Opening: Agincourt Defense, Neo-Catalan Declined", "f": "rnbqk2r/ppp1bppp/4pn2/3p4/2P5/5NP1/PP1PPPBP/RNBQ1RK1 b kq", "id": 430, "m": "g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7 e1g1"},
{"c": "A14", "n": "English Opening: Agincourt Defense, Tarrasch Defense", "f": "r1bqk2r/pp2bppp/2n1pn2/2pp4/2P5/1P3NP1/P2PPPBP/RNBQ1RK1 w kq", "id": 1852, "m": "g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 b2b3 c7c5 f1g2 b8c6 e1g1 f8e7"},
{"c": "A14", "n": "English Opening: Neo-Catalan Declined", "f": "rnbqk2r/ppp1bppp/4pn2/3p4/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq", "id": 3438, "m": "g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7"},
{"c": "A15", "n": "English Opening: Anglo-Indian Defense", "f": "rnbqkb1r/pppppppp/5n2/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq", "id": 447, "m": "c2c4 g8f6"},
{"c": "A15", "n": "English Opening: Anglo-Indian Defense, Grünfeld Formation", "f": "rnbqkb1r/ppp1pp1p/5np1/3p4/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq", "id": 2784, "m": "g2g3 d7d5 g1f3 g7g6 c2c4 g8f6"},
{"c": "A15", "n": "English Opening: Anglo-Indian Defense, King's Indian Formation", "f": "rnbqkb1r/pppppp1p/5np1/8/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq", "id": 2783, "m": "g1f3 g8f6 c2c4 g7g6"},
{"c": "A15", "n": "English Opening: Anglo-Indian Defense, King's Indian Formation, Double Fianchetto", "f": "rn1qkb1r/pbpppp1p/1p3np1/8/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq", "id": 2786, "m": "g1f3 g8f6 c2c4 b7b6 g2g3 c8b7 f1g2 g7g6"},
{"c": "A15", "n": "English Opening: Anglo-Indian Defense, King's Knight Variation", "f": "rnbqkb1r/pppppppp/5n2/8/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq", "id": 446, "m": "g1f3 g8f6 c2c4"},
{"c": "A15", "n": "English Opening: Anglo-Indian Defense, Old Indian Formation", "f": "rnbqkb1r/ppp1pppp/3p1n2/8/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq", "id": 2791, "m": "g1f3 g8f6 c2c4 d7d6"},
{"c": "A15", "n": "English Opening: Anglo-Indian Defense, Queen's Indian Formation", "f": "rnbqkb1r/p1pppppp/1p3n2/8/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq", "id": 2807, "m": "g1f3 g8f6 c2c4 b7b6"},
{"c": "A15", "n": "English Opening: Anglo-Indian Defense, Scandinavian Defense", "f": "rnbqkb1r/ppp1pppp/5n2/3p4/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq", "id": 2787, "m": "g1f3 g8f6 c2c4 d7d5"},
{"c": "A15", "n": "English Opening: Anglo-Indian Defense, Scandinavian Defense, Exchange Variation", "f": "rnbqkb1r/ppp1pppp/8/3n4/8/5N2/PP1PPPPP/RNBQKB1R w KQkq", "id": 2788, "m": "g1f3 g8f6 c2c4 d7d5 c4d5 f6d5"},
{"c": "A15", "n": "English Opening: Anglo-Indian Defense, Slav Formation", "f": "rnbqkb1r/pp1ppp1p/2p2np1/8/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq", "id": 2785, "m": "g1f3 g8f6 c2c4 g7g6 g2g3 c7c6"},
{"c": "A15", "n": "English Orangutan", "f": "rnbqkb1r/pppppppp/5n2/8/1PP5/8/P2PPPPP/RNBQKBNR b KQkq", "id": 3002, "m": "c2c4 g8f6 b2b4"},
{"c": "A16", "n": "English Opening: Anglo-Grünfeld Defense", "f": "rnbqkb1r/ppp1pppp/5n2/3p4/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq", "id": 465, "m": "c2c4 g8f6 b1c3 d7d5"},
{"c": "A16", "n": "English Opening: Anglo-Grünfeld Defense: Korchnoi Variation", "f": "rnbqk2r/ppp2pbp/6p1/3np3/8/2N2NP1/PP1PPPBP/R1BQK2R w KQkq", "id": 3003, "m": "g1f3 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 g2g3 f8g7 f1g2 e7e5"},
{"c": "A16", "n": "English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation", "f": "rnbqkb1r/ppp1pp1p/6p1/8/8/2n3P1/PP1PPPBP/R1BQK1NR w KQkq", "id": 436, "m": "c2c4 g8f6 b1c3 d7d5 c4d5 f6d5 g2g3 g7g6 f1g2 d5c3"},
{"c": "A16", "n": "English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation", "f": "rnbqkb1r/ppp1pp1p/1n4p1/8/8/2N3P1/PP1PPPBP/R1BQK1NR w KQkq", "id": 437, "m": "c2c4 g8f6 b1c3 d7d5 c4d5 f6d5 g2g3 g7g6 f1g2 d5b6"},
{"c": "A16", "n": "English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation", "f": "rnbqkb1r/ppp1pppp/8/3n4/8/2N2N2/PP1PPPPP/R1BQKB1R b KQkq", "id": 438, "m": "c2c4 g8f6 b1c3 d7d5 c4d5 f6d5 g1f3"},
{"c": "A16", "n": "English Opening: Anglo-Indian Defense, Queen's Knight Variation", "f": "rnbqkb1r/pppppppp/5n2/8/2P5/2N5/PP1PPPPP/R1BQKBNR b KQkq", "id": 451, "m": "c2c4 g8f6 b1c3"},
{"c": "A17", "n": "English Opening: Anglo-Indian Defense, Anti-Anti-Grünfeld", "f": "rnbqk2r/ppppppbp/5np1/8/2P1P3/2N2N2/PP1P1PPP/R1BQKB1R b KQkq", "id": 439, "m": "g1f3 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4"},
{"c": "A17", "n": "English Opening: Anglo-Indian Defense, Hedgehog System", "f": "rnbqkb1r/pppp1ppp/4pn2/8/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq", "id": 445, "m": "c2c4 g8f6 b1c3 e7e6"},
{"c": "A17", "n": "English Opening: Anglo-Indian Defense, Nimzo-English", "f": "rnbqk2r/pppp1ppp/4pn2/8/1bP5/2N2N2/PP1PPPPP/R1BQKB1R w KQkq", "id": 448, "m": "g1f3 g8f6 c2c4 e7e6 b1c3 f8b4"},
{"c": "A17", "n": "English Opening: Anglo-Indian Defense, Queen's Indian Formation", "f": "rnbqkb1r/p1pp1ppp/1p2pn2/8/2P5/2N2N2/PP1PPPPP/R1BQKB1R w KQkq", "id": 449, "m": "c2c4 g8f6 b1c3 e7e6 g1f3 b7b6"},
{"c": "A17", "n": "English Opening: Anglo-Indian Defense, Queen's Indian Variation", "f": "rn1qkb1r/pbpp1ppp/1p2pn2/8/2P1P3/2NB1N2/PP1P1PPP/R1BQK2R b KQkq", "id": 450, "m": "c2c4 g8f6 b1c3 e7e6 g1f3 b7b6 e2e4 c8b7 f1d3"},
{"c": "A18", "n": "English Opening: Anglo-Indian Defense, Zvjaginsev-Krasenkow Attack", "f": "rnbqk2r/pppp1ppp/4pn2/8/1bP3P1/2N2N2/PP1PPP1P/R1BQKB1R b KQkq", "id": 453, "m": "c2c4 g8f6 b1c3 e7e6 g1f3 f8b4 g2g4"},
{"c": "A18", "n": "English Opening: Mikenas-Carls Variation", "f": "rnbqkb1r/ppp2ppp/4pn2/3pP3/2P5/2N5/PP1P1PPP/R1BQKBNR b KQkq", "id": 440, "m": "c2c4 g8f6 b1c3 e7e6 e2e4 d7d5 e4e5"},
{"c": "A18", "n": "English Opening: Mikenas-Carls Variation", "f": "rnbqkb1r/pppp1ppp/4pn2/8/2P1P3/2N5/PP1P1PPP/R1BQKBNR b KQkq", "id": 441, "m": "c2c4 g8f6 b1c3 e7e6 e2e4"},
{"c": "A18", "n": "English Opening: Mikenas-Carls Variation", "f": "r1bqkb1r/pppp1ppp/2n1pn2/8/2P1P3/2N5/PP1P1PPP/R1BQKBNR w KQkq", "id": 442, "m": "c2c4 g8f6 b1c3 e7e6 e2e4 b8c6"},
{"c": "A19", "n": "English Opening: Anglo-Indian Defense, Flohr-Mikenas-Carls Variation, Nei Gambit", "f": "rnbqkbnr/pp1p1ppp/4p3/2p1P3/2P5/2N5/PP1P1PPP/R1BQKBNR w KQkq", "id": 444, "m": "c2c4 g8f6 b1c3 e7e6 e2e4 c7c5 e4e5 f6g8"},
{"c": "A19", "n": "English Opening: Mikenas-Carls, Sicilian", "f": "rnbqkb1r/pp1p1ppp/4pn2/2p5/2P1P3/2N5/PP1P1PPP/R1BQKBNR w KQkq", "id": 443, "m": "c2c4 g8f6 b1c3 e7e6 e2e4 c7c5"},
{"c": "A20", "n": "English Opening: Drill Variation", "f": "rnbqkbnr/pppp1pp1/8/4p2p/2P5/6P1/PP1PPP1P/RNBQKBNR w KQkq", "id": 461, "m": "c2c4 e7e5 g2g3 h7h5"},
{"c": "A20", "n": "English Opening: King's English Variation", "f": "rnbqkbnr/pppp1ppp/8/4p3/2P5/8/PP1PPPPP/RNBQKBNR w KQkq", "id": 485, "m": "c2c4 e7e5"},
{"c": "A20", "n": "English Opening: King's English Variation, Nimzowitsch Variation", "f": "rnbqkbnr/pppp1ppp/8/4p3/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq", "id": 490, "m": "c2c4 e7e5 g1f3"},
{"c": "A20", "n": "English Opening: King's English Variation, Nimzowitsch-Flohr Variation", "f": "rnbqkbnr/pppp1ppp/8/8/2P1p3/5N2/PP1PPPPP/RNBQKB1R w KQkq", "id": 491, "m": "c2c4 e7e5 g1f3 e5e4"},
{"c": "A20", "n": "English Openings: King's English, Kahiko-Hula Gambit", "f": "rnbqkb1r/pppp1ppp/5n2/8/2P2p2/4PN2/PP1P2PP/RNBQKB1R b KQkq", "id": 2727, "m": "c2c4 e7e5 e2e3 g8f6 f2f4 e5f4 g1f3"},
{"c": "A21", "n": "English Opening: King's English Variation", "f": "rnbqkbnr/ppp2ppp/3p4/4p3/2P5/2N2N2/PP1PPPPP/R1BQKB1R b KQkq", "id": 486, "m": "c2c4 e7e5 b1c3 d7d6 g1f3"},
{"c": "A21", "n": "English Opening: King's English Variation, Keres Defense", "f": "rnbqkbnr/pp3ppp/2pp4/4p3/2P5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq", "id": 488, "m": "c2c4 e7e5 b1c3 d7d6 g2g3 c7c6"},
{"c": "A21", "n": "English Opening: King's English Variation, Kramnik-Shirov Counterattack", "f": "rnbqk1nr/pppp1ppp/8/4p3/1bP5/2N5/PP1PPPPP/R1BQKBNR w KQkq", "id": 489, "m": "c2c4 e7e5 b1c3 f8b4"},
{"c": "A21", "n": "English Opening: King's English Variation, Reversed Sicilian", "f": "rnbqkbnr/pppp1ppp/8/4p3/2P5/2N5/PP1PPPPP/R1BQKBNR b KQkq", "id": 493, "m": "c2c4 e7e5 b1c3"},
{"c": "A21", "n": "English Opening: King's English Variation, Smyslov Defense", "f": "rn1qkbnr/ppp2ppp/3p4/4p3/2P3b1/2N2N2/PP1PPPPP/R1BQKB1R w KQkq", "id": 494, "m": "c2c4 e7e5 b1c3 d7d6 g1f3 c8g4"},
{"c": "A21", "n": "English Opening: King's English Variation, Troger Defense", "f": "r2qkbnr/ppp2ppp/2npb3/4p3/2P5/2N3P1/PP1PPPBP/R1BQK1NR w KQkq", "id": 497, "m": "c2c4 e7e5 b1c3 b8c6 g2g3 d7d6 f1g2 c8e6"},
{"c": "A22", "n": "English Opening: Carls-Bremen System", "f": "rnbqkb1r/pppp1ppp/5n2/4p3/2P5/2N3P1/PP1PPP1P/R1BQKBNR b KQkq", "id": 498, "m": "c2c4 e7e5 b1c3 g8f6 g2g3"},
{"c": "A22", "n": "English Opening: King's English Variation, Bellon Gambit", "f": "rnbqkb1r/p1pp1ppp/5n2/1p4N1/2P1p3/2N5/PP1PPPPP/R1BQKB1R w KQkq", "id": 469, "m": "c2c4 e7e5 b1c3 g8f6 g1f3 e5e4 f3g5 b7b5"},
{"c": "A22", "n": "English Opening: King's English Variation, Two Knights Variation", "f": "rnbqkb1r/pppp1ppp/5n2/4p3/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq", "id": 500, "m": "c2c4 e7e5 b1c3 g8f6"},
{"c": "A22", "n": "English Opening: King's English Variation, Two Knights Variation, Reversed Dragon", "f": "rnbqkb1r/ppp2ppp/5n2/3pp3/2P5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq", "id": 502, "m": "c2c4 e7e5 b1c3 g8f6 g2g3 d7d5"},
{"c": "A22", "n": "English Opening: King's English Variation, Two Knights Variation, Smyslov System", "f": "rnbqk2r/pppp1ppp/5n2/4p3/1bP5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq", "id": 503, "m": "c2c4 e7e5 b1c3 g8f6 g2g3 f8b4"},
{"c": "A22", "n": "English Opening: King's English, Erbenheimer Gambit", "f": "rnbqkb1r/pppp1ppp/8/6N1/2P1p1n1/2N5/PP1PPPPP/R1BQKB1R w KQkq", "id": 468, "m": "c2c4 e7e5 b1c3 g8f6 g1f3 e5e4 f3g5 f6g4"},
{"c": "A23", "n": "English Opening: King's English Variation, Two Knights Variation, Keres Variation", "f": "rnbqkb1r/pp1p1ppp/2p2n2/4p3/2P5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq", "id": 501, "m": "c2c4 e7e5 b1c3 g8f6 g2g3 c7c6"},
{"c": "A24", "n": "English Opening: King's English Variation, Two Knights Variation, Fianchetto Line", "f": "rnbqkb1r/pppp1p1p/5np1/4p3/2P5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq", "id": 499, "m": "c2c4 e7e5 b1c3 g8f6 g2g3 g7g6"},
{"c": "A25", "n": "English Opening: Closed, 5. Rb1 Taimanov Variation", "f": "r1bqk2r/pppp1pbp/2n3pn/4p3/2P5/2N3P1/PP1PPPBP/1RBQK1NR w Kkq", "id": 3005, "m": "c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 a1b1 g8h6 f1g2 f8g7"},
{"c": "A25", "n": "English Opening: Closed, Taimanov Variation", "f": "r1bqk2r/ppp2pbp/2np2pn/4p3/2P5/2N1P1P1/PP1PNPBP/R1BQK2R w KQkq", "id": 3004, "m": "c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 e2e3 d7d6 g1e2 g8h6"},
{"c": "A25", "n": "English Opening: King's English Variation, Bremen-Hort Variation", "f": "r2qk1nr/ppp2pbp/2npb1p1/4p3/2P5/2N1P1P1/PP1PNPBP/R1BQK2R w KQkq", "id": 472, "m": "c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 e2e3 d7d6 g1e2 c8e6"},
{"c": "A25", "n": "English Opening: King's English Variation, Closed System", "f": "r1bqk1nr/pppp1pbp/2n3p1/4p3/2P5/2NP2P1/PP2PPBP/R1BQK1NR b KQkq", "id": 473, "m": "c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3"},
{"c": "A25", "n": "English Opening: King's English Variation, Hungarian Attack", "f": "r1bqk1nr/pppp1pbp/2n3p1/4p3/2P5/2N3P1/PP1PPPBP/1RBQK1NR b Kkq", "id": 487, "m": "c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 a1b1"},
{"c": "A25", "n": "English Opening: King's English Variation, Reversed Closed Sicilian", "f": "r1bqkbnr/pppp1ppp/2n5/4p3/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq", "id": 492, "m": "c2c4 e7e5 b1c3 b8c6"},
{"c": "A25", "n": "English Opening: King's English Variation, Taimanov Variation", "f": "r1bqk1nr/pppp1pbp/2n3p1/4p3/2P5/2N3P1/PP1PPPBP/R1BQK1NR w KQkq", "id": 495, "m": "c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7"},
{"c": "A25", "n": "English Opening: King's English, Mazedonisch", "f": "rnbqkb1r/pppp1ppp/5n2/4p3/2P2P2/2N5/PP1PP1PP/R1BQKBNR b KQkq", "id": 2737, "m": "c2c4 e7e5 b1c3 g8f6 f2f4"},
{"c": "A26", "n": "English Opening: King's English Variation, Botvinnik System", "f": "r1bqk1nr/ppp2pbp/2np2p1/4p3/2P1P3/2NP2P1/PP3PBP/R1BQK1NR b KQkq", "id": 470, "m": "c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 e2e4"},
{"c": "A26", "n": "English Opening: King's English Variation, Botvinnik System, Prickly Pawn Pass System", "f": "rnbq1rk1/1p3pbp/p1pp1np1/4p3/2P1P3/2NP2P1/PP2NPBP/R1BQ1RK1 w -", "id": 471, "m": "c2c4 g7g6 b1c3 f8g7 g2g3 g8f6 f1g2 e8g8 e2e4 d7d6 g1e2 e7e5 e1g1 c7c6 d2d3 a7a6"},
{"c": "A26", "n": "English Opening: King's English Variation, Closed System, Full Symmetry", "f": "r1bqk1nr/ppp2pbp/2np2p1/4p3/2P5/2NP2P1/PP2PPBP/R1BQK1NR w KQkq", "id": 474, "m": "c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6"},
{"c": "A27", "n": "English Opening: King's English Variation, Three Knights System", "f": "r1bqkbnr/pppp1ppp/2n5/4p3/2P5/2N2N2/PP1PPPPP/R1BQKB1R b KQkq", "id": 496, "m": "c2c4 e7e5 b1c3 b8c6 g1f3"},
{"c": "A28", "n": "English Opening: Four Knights System, Nimzowitsch Variation", "f": "r1bqkb1r/pppp1ppp/2n2n2/4p3/2P1P3/2N2N2/PP1P1PPP/R1BQKB1R b KQkq", "id": 476, "m": "c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 e2e4"},
{"c": "A28", "n": "English Opening: King's English Variation, Four Knights Variation", "f": "r1bqk2r/pppp1pp1/5n1p/4n3/2PN3B/2P5/P3PPPP/R2QKB1R w KQkq", "id": 475, "m": "c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 d2d4 e5d4 f3d4 f8b4 c1g5 h7h6 g5h4 b4c3 b2c3 c6e5"},
{"c": "A28", "n": "English Opening: King's English Variation, Four Knights Variation", "f": "r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/2N2N2/PP1PPPPP/R1BQKB1R w KQkq", "id": 480, "m": "c2c4 e7e5 b1c3 g8f6 g1f3 b8c6"},
{"c": "A28", "n": "English Opening: King's English Variation, Four Knights Variation, Bradley Beach Variation", "f": "r1bqkb1r/pppp1ppp/2n2n2/8/2PPp3/2N2N2/PP2PPPP/R1BQKB1R w KQkq", "id": 477, "m": "c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 d2d4 e5e4"},
{"c": "A28", "n": "English Opening: King's English Variation, Four Knights Variation, Flexible Line", "f": "r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/2NP1N2/PP2PPPP/R1BQKB1R b KQkq", "id": 479, "m": "c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 d2d3"},
{"c": "A28", "n": "English Opening: King's English Variation, Four Knights Variation, Korchnoi Line", "f": "r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/P1N2N2/1P1PPPPP/R1BQKB1R b KQkq", "id": 481, "m": "c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 a2a3"},
{"c": "A28", "n": "English Opening: King's English Variation, Four Knights Variation, Quiet Line", "f": "r1bqk2r/pppp1ppp/2n2n2/4p3/2P5/2b1PN2/PPQP1PPP/R1B1KB1R w KQkq", "id": 482, "m": "c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 e2e3 f8b4 d1c2 b4c3"},
{"c": "A28", "n": "English Opening: King's English Variation, Four Knights Variation, Quiet Line", "f": "r1bqr1k1/pppp1ppp/2n2n2/3NpQ2/1bP5/4PN2/PP1P1PPP/R1B1KB1R b KQ", "id": 483, "m": "c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 e2e3 f8b4 d1c2 e8g8 c3d5 f8e8 c2f5"},
{"c": "A28", "n": "English Opening: King's English Variation, Four Knights Variation, Quiet Line", "f": "r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/2N1PN2/PP1P1PPP/R1BQKB1R b KQkq", "id": 484, "m": "c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 e2e3"},
{"c": "A29", "n": "English Opening: King's English Variation, Four Knights Variation, Fianchetto Line", "f": "r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/2N2NP1/PP1PPP1P/R1BQKB1R b KQkq", "id": 478, "m": "c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 g2g3"},
{"c": "A30", "n": "English Opening: Symmetrical Variation", "f": "rnbqkbnr/pp1ppppp/8/2p5/2P5/8/PP1PPPPP/RNBQKBNR w KQkq", "id": 519, "m": "c2c4 c7c5"},
{"c": "A30", "n": "English Opening: Symmetrical Variation, Hedgehog Defense", "f": "rn1qk2r/pb1pbppp/1p2pn2/2p5/2P5/2N2NP1/PP1PPPBP/R1BQ1RK1 w kq", "id": 520, "m": "g1f3 g8f6 c2c4 c7c5 b1c3 e7e6 g2g3 b7b6 f1g2 c8b7 e1g1 f8e7"},
{"c": "A30", "n": "English Opening: Symmetrical Variation, Napolitano Gambit", "f": "rnbqkb1r/pp1ppppp/5n2/2p5/1PP5/5N2/P2PPPPP/RNBQKB1R b KQkq", "id": 522, "m": "c2c4 c7c5 g1f3 g8f6 b2b4"},
{"c": "A30", "n": "English Opening: Symmetrical, Hedgehog, Flexible Formation", "f": "r2qk2r/1b1nbppp/pp1ppn2/8/2PQ4/1PN2NP1/P3PPBP/R1BR2K1 w kq", "id": 3006, "m": "g1f3 c7c5 c2c4 g8f6 b1c3 e7e6 g2g3 b7b6 f1g2 c8b7 e1g1 f8e7 d2d4 c5d4 d1d4 d7d6 f1d1 a7a6 b2b3 b8d7"},
{"c": "A30", "n": "English Opening: Wing Gambit", "f": "rnbqkbnr/pp1ppppp/8/2p5/1PP5/8/P2PPPPP/RNBQKBNR b KQkq", "id": 532, "m": "c2c4 c7c5 b2b4"},
{"c": "A31", "n": "English Opening: Symmetrical Variation, Anti-Benoni Variation", "f": "rnbqkb1r/pp1ppppp/5n2/2p5/2PP4/5N2/PP2PPPP/RNBQKB1R b KQkq", "id": 506, "m": "d2d4 g8f6 c2c4 c7c5 g1f3"},
{"c": "A32", "n": "English Opening: Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense", "f": "rnbqkb1r/pp1p1ppp/4pn2/8/2PN4/8/PP2PPPP/RNBQKB1R w KQkq", "id": 508, "m": "d2d4 g8f6 c2c4 c7c5 g1f3 c5d4 f3d4 e7e6"},
{"c": "A33", "n": "English Opening: Symmetrical Variation, Anti-Benoni Variation, Geller Variation", "f": "r1b1kb1r/pp1p1ppp/1qn1pn2/8/2PN4/2N3P1/PP2PP1P/R1BQKB1R w KQkq", "id": 507, "m": "g1f3 g8f6 c2c4 c7c5 b1c3 b8c6 d2d4 c5d4 f3d4 e7e6 g2g3 d8b6"},
{"c": "A33", "n": "English Opening: Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense", "f": "r1bqkb1r/pp1p1ppp/2n1pn2/8/2PN4/2N5/PP2PPPP/R1BQKB1R w KQkq", "id": 509, "m": "g1f3 g8f6 c2c4 c7c5 b1c3 b8c6 d2d4 c5d4 f3d4 e7e6"},
{"c": "A34", "n": "English Opening: Symmetrical Variation, Fianchetto Variation", "f": "rnbqkb1r/pp1ppppp/5n2/2p5/2P5/2N3P1/PP1PPP1P/R1BQKBNR b KQkq", "id": 515, "m": "c2c4 g8f6 b1c3 c7c5 g2g3"},
{"c": "A34", "n": "English Opening: Symmetrical Variation, Normal Variation", "f": "rnbqkbnr/pp1ppppp/8/2p5/2P5/2N5/PP1PPPPP/R1BQKBNR b KQkq", "id": 523, "m": "c2c4 c7c5 b1c3"},
{"c": "A34", "n": "English Opening: Symmetrical Variation, Rubinstein Variation", "f": "rnbqkb1r/ppn1pppp/8/2p5/8/2N3P1/PP1PPPBP/R1BQK1NR w KQkq", "id": 524, "m": "c2c4 g8f6 b1c3 c7c5 g2g3 d7d5 c4d5 f6d5 f1g2 d5c7"},
{"c": "A34", "n": "English Opening: Symmetrical Variation, Three Knights Variation", "f": "rnbqkb1r/pp2pppp/8/2pn4/8/2N2N2/PP1PPPPP/R1BQKB1R w KQkq", "id": 526, "m": "g1f3 g8f6 c2c4 c7c5 b1c3 d7d5 c4d5 f6d5"},
{"c": "A35", "n": "English Opening: Symmetrical Variation, Four Knights Variation", "f": "r1bqkb1r/pp1ppppp/2n2n2/2p5/2P5/2N2N2/PP1PPPPP/R1BQKB1R w KQkq", "id": 517, "m": "g1f3 g8f6 c2c4 c7c5 b1c3 b8c6"},
{"c": "A35", "n": "English Opening: Symmetrical Variation, Two Knights Variation", "f": "r1bqkbnr/pp1ppppp/2n5/2p5/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq", "id": 528, "m": "c2c4 c7c5 b1c3 b8c6"},
{"c": "A36", "n": "English Opening: Symmetrical Variation, Botvinnik System", "f": "r1bqk1nr/pp1pppbp/2n3p1/2p5/2P1P3/2N3P1/PP1P1PBP/R1BQK1NR b KQkq", "id": 510, "m": "e2e4 c7c5 c2c4 b8c6 b1c3 g7g6 g2g3 f8g7 f1g2"},
{"c": "A36", "n": "English Opening: Symmetrical Variation, Botvinnik System Reversed", "f": "r1bqk1nr/pp1p1pbp/2n3p1/2p1p3/2P5/2N1P1P1/PP1P1PBP/R1BQK1NR w KQkq", "id": 511, "m": "c2c4 c7c5 b1c3 g7g6 g2g3 f8g7 f1g2 b8c6 e2e3 e7e5"},
{"c": "A36", "n": "English Opening: Symmetrical Variation, Fianchetto Variation", "f": "r1bqkbnr/pp1ppppp/2n5/2p5/2P5/2N3P1/PP1PPP1P/R1BQKBNR b KQkq", "id": 516, "m": "c2c4 c7c5 b1c3 b8c6 g2g3"},
{"c": "A36", "n": "English Opening: Symmetrical Variation, Symmetrical Variation", "f": "r1bqk1nr/pp1pppbp/2n3p1/2p5/2P5/2N3P1/PP1PPPBP/R1BQK1NR w KQkq", "id": 525, "m": "c2c4 c7c5 g2g3 g7g6 f1g2 f8g7 b1c3 b8c6"},
{"c": "A37", "n": "English Opening: Symmetrical Variation, Botvinnik System Reversed", "f": "r1bqk1nr/pp1p1pbp/2n3p1/2p1p3/2P5/2N2NP1/PP1PPPBP/R1BQK2R w KQkq", "id": 512, "m": "g1f3 c7c5 c2c4 b8c6 b1c3 e7e5 g2g3 g7g6 f1g2 f8g7"},
{"c": "A37", "n": "English Opening: Symmetrical Variation, Two Knights Line", "f": "r1bqk1nr/pp1pppbp/2n3p1/2p5/2P5/2N2NP1/PP1PPPBP/R1BQK2R b KQkq", "id": 527, "m": "c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 g1f3"},
{"c": "A38", "n": "English Opening: Symmetrical Variation, Double Fianchetto", "f": "r1bq1rk1/pp1pppbp/2n2np1/2p5/2P5/1PN2NP1/P2PPPBP/R1BQ1RK1 b -", "id": 513, "m": "c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 g1f3 g8f6 e1g1 e8g8 b2b3"},
{"c": "A38", "n": "English Opening: Symmetrical Variation, Duchamp Variation", "f": "r1bq1rk1/pp1pppbp/2n2np1/2p5/2P5/2NP1NP1/PP2PPBP/R1BQ1RK1 b -", "id": 514, "m": "g1f3 g8f6 g2g3 g7g6 f1g2 f8g7 e1g1 e8g8 c2c4 c7c5 b1c3 b8c6 d2d3"},
{"c": "A38", "n": "English Opening: Symmetrical Variation, Full Symmetry Line", "f": "r1bqk2r/pp1pppbp/2n2np1/2p5/2P5/2N2NP1/PP1PPPBP/R1BQK2R w KQkq", "id": 518, "m": "g1f3 g8f6 c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7"},
{"c": "A39", "n": "English Opening: Symmetrical Variation, Mecking Variation", "f": "r1bq1rk1/pp1pppbp/2n2np1/2p5/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 b -", "id": 521, "m": "g1f3 g8f6 c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 e1g1 e8g8 d2d4"},
{"c": "A40", "n": "Australian Defense", "f": "r1bqkbnr/pppppppp/n7/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq", "id": 2971, "m": "d2d4 b8a6"},
{"c": "A40", "n": "Borg Defense: Borg Gambit", "f": "rnbqkbnr/pppppp1p/8/6p1/3P4/8/PPP1PPPP/RNBQKBNR w KQkq", "id": 227, "m": "d2d4 g7g5"},
{"c": "A40", "n": "Caro-Kann Defense: De Bruycker Defense", "f": "r1bqkbnr/pp1ppppp/n1p5/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 266, "m": "e2e4 c7c6 d2d4 b8a6"},
{"c": "A40", "n": "English Defense", "f": "rnbqkbnr/p1pp1ppp/1p2p3/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq", "id": 417, "m": "d2d4 e7e6 c2c4 b7b6"},
{"c": "A40", "n": "English Defense", "f": "rnbqkbnr/p1pppppp/1p6/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq", "id": 1593, "m": "d2d4 b7b6"},
{"c": "A40", "n": "English Defense: Eastbourne Gambit", "f": "rn1qkbnr/pbpp1ppp/1p6/4p3/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq", "id": 416, "m": "d2d4 b7b6 c2c4 c8b7 b1c3 e7e5"},
{"c": "A40", "n": "English Defense: Hartlaub Gambit Accepted", "f": "rn1qkb1r/pbpp2pp/1p2pn2/5P2/2PP4/2N5/PP3PPP/R1BQKBNR w KQkq", "id": 418, "m": "c2c4 e7e6 d2d4 b7b6 b1c3 c8b7 e2e4 f7f5 e4f5 g8f6"},
{"c": "A40", "n": "English Defense: Hartlaub Gambit Declined", "f": "rn1qkbnr/pbpp2pp/1p2p3/3P1p2/2P1P3/2N5/PP3PPP/R1BQKBNR b KQkq", "id": 419, "m": "c2c4 e7e6 d2d4 b7b6 b1c3 c8b7 e2e4 f7f5 d4d5"},
{"c": "A40", "n": "English Defense: Perrin Variation", "f": "r2qkbnr/pbpp1ppp/1pn1p3/8/2PPP3/3B4/PP3PPP/RNBQK1NR w KQkq", "id": 420, "m": "d2d4 e7e6 c2c4 b7b6 e2e4 c8b7 f1d3 b8c6"},
{"c": "A40", "n": "English Defense: Poli Gambit", "f": "rn1qkb1r/pbpp2pp/1p2p2n/5P2/2PP4/5P2/PP4PP/RNBQKBNR w KQkq", "id": 421, "m": "d2d4 e7e6 c2c4 b7b6 e2e4 c8b7 f2f3 f7f5 e4f5 g8h6"},
{"c": "A40", "n": "Englund Gambit", "f": "rnbqkbnr/pppp1ppp/8/4p3/3P4/8/PPP1PPPP/RNBQKBNR w KQkq", "id": 538, "m": "d2d4 e7e5"},
{"c": "A40", "n": "Englund Gambit Complex Declined", "f": "rnbqkbnr/pppp1ppp/8/3Pp3/8/8/PPP1PPPP/RNBQKBNR b KQkq", "id": 534, "m": "d2d4 e7e5 d4d5"},
{"c": "A40", "n": "Englund Gambit Complex Declined, Diemer Counterattack", "f": "rnb1k1nr/pppp1ppp/8/2bPp3/4P2q/8/PPP2PPP/RNBQKBNR w KQkq", "id": 535, "m": "d2d4 e7e5 d4d5 f8c5 e2e4 d8h4"},
{"c": "A40", "n": "Englund Gambit Complex: Englund Gambit", "f": "r1b1kbnr/ppppqppp/2n5/4P3/8/5N2/PPP1PPPP/RNBQKB1R w KQkq", "id": 536, "m": "d2d4 e7e5 d4e5 b8c6 g1f3 d8e7"},
{"c": "A40", "n": "Englund Gambit Complex: Felbecker Gambit", "f": "r1bqk1nr/pppp1ppp/2n5/2b1P3/8/5N2/PPP1PPPP/RNBQKB1R w KQkq", "id": 537, "m": "d2d4 e7e5 d4e5 b8c6 g1f3 f8c5"},
{"c": "A40", "n": "Englund Gambit Complex: Hartlaub-Charlick Gambit", "f": "rnbqkbnr/ppp2ppp/3p4/4P3/8/8/PPP1PPPP/RNBQKBNR w KQkq", "id": 539, "m": "d2d4 e7e5 d4e5 d7d6"},
{"c": "A40", "n": "Englund Gambit Complex: Mosquito Gambit", "f": "rnb1kbnr/pppp1ppp/8/4P3/7q/8/PPP1PPPP/RNBQKBNR w KQkq", "id": 540, "m": "d2d4 e7e5 d4e5 d8h4"},
{"c": "A40", "n": "Englund Gambit Complex: Soller Gambit", "f": "rnbqkbnr/pppp2pp/5p2/4P3/8/8/PPP1PPPP/RNBQKBNR w KQkq", "id": 541, "m": "d2d4 e7e5 d4e5 f7f6"},
{"c": "A40", "n": "Englund Gambit Complex: Soller Gambit Deferred", "f": "r1bqkbnr/pppp2pp/2n2p2/4P3/8/5N2/PPP1PPPP/RNBQKB1R w KQkq", "id": 542, "m": "d2d4 e7e5 d4e5 b8c6 g1f3 f7f6"},
{"c": "A40", "n": "Englund Gambit Complex: Stockholm Variation", "f": "r1b1kbnr/ppppqppp/2n5/3QP3/8/5N2/PPP1PPPP/RNB1KB1R b KQkq", "id": 543, "m": "d2d4 e7e5 d4e5 b8c6 g1f3 d8e7 d1d5"},
{"c": "A40", "n": "Englund Gambit Complex: Zilbermints Gambit", "f": "r1bqkb1r/ppppnppp/2n5/4P3/8/5N2/PPP1PPPP/RNBQKB1R w KQkq", "id": 544, "m": "d2d4 e7e5 d4e5 b8c6 g1f3 g8e7"},
{"c": "A40", "n": "Englund Gambit Complex: Zilbermints Gambit", "f": "r1bqkbnr/pppp1pp1/2n4p/4P3/8/5N2/PPP1PPPP/RNBQKB1R w KQkq", "id": 545, "m": "d2d4 e7e5 d4e5 b8c6 g1f3 h7h6"},
{"c": "A40", "n": "Englund Gambit Declined, Reversed Alekhine", "f": "rnbqkbnr/pppp1ppp/8/4p3/3P4/5N2/PPP1PPPP/RNBQKB1R b KQkq", "id": 2977, "m": "d2d4 e7e5 g1f3"},
{"c": "A40", "n": "Englund Gambit Declined, Reversed Brooklyn", "f": "rnbqkbnr/pppp1ppp/8/8/3Pp3/8/PPP1PPPP/RNBQKBNR b KQkq", "id": 2979, "m": "d2d4 e7e5 g1f3 e5e4 f3g1"},
{"c": "A40", "n": "Englund Gambit Declined, Reversed French", "f": "rnbqkbnr/pppp1ppp/8/4p3/3P4/4P3/PPP2PPP/RNBQKBNR b KQkq", "id": 2978, "m": "e2e3 e7e5 d2d4"},
{"c": "A40", "n": "Englund Gambit Declined, Reversed Krebs", "f": "rnbqkbnr/pppp1ppp/8/8/3Pp3/5N2/PPP1PPPP/RNBQKB1R w KQkq", "id": 2980, "m": "d2d4 e7e5 g1f3 e5e4"},
{"c": "A40", "n": "Englund Gambit Declined, Reversed Mokele Mbembe", "f": "rnbqkbnr/pppp1ppp/8/4N3/3Pp3/8/PPP1PPPP/RNBQKB1R b KQkq", "id": 2981, "m": "d2d4 e7e5 g1f3 e5e4 f3e5"},
{"c": "A40", "n": "Horwitz Defense", "f": "rnbqkbnr/pppp1ppp/4p3/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq", "id": 802, "m": "d2d4 e7e6"},
{"c": "A40", "n": "Horwitz Defense: Zilbermints Gambit", "f": "rnbqkbnr/pppp1ppp/8/4p3/2PP4/8/PP2PPPP/RNBQKBNR w KQkq", "id": 803, "m": "c2c4 e7e6 d2d4 e6e5"},
{"c": "A40", "n": "Mikenas Defense", "f": "r1bqkbnr/pppppppp/2n5/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq", "id": 1274, "m": "d2d4 b8c6"},
{"c": "A40", "n": "Mikenas Defense: Cannstatter Variation", "f": "r1bqkbnr/pppp1ppp/8/3Pp3/2Pn4/8/PP2PPPP/RNBQKBNR w KQkq", "id": 1275, "m": "d2d4 b8c6 c2c4 e7e5 d4d5 c6d4"},
{"c": "A40", "n": "Mikenas Defense: Lithuanian Variation", "f": "r1bqkbnr/ppppnppp/8/3Pp3/2P5/8/PP2PPPP/RNBQKBNR w KQkq", "id": 1276, "m": "d2d4 b8c6 c2c4 e7e5 d4d5 c6e7"},
{"c": "A40", "n": "Mikenas Defense: Pozarek Gambit", "f": "r1bqkbnr/pppp1ppp/8/8/2n5/2N5/PP2PPPP/R1BQKBNR w KQkq", "id": 1277, "m": "d2d4 b8c6 c2c4 e7e5 d4e5 c6e5 b1c3 e5c4"},
{"c": "A40", "n": "Modern Defense", "f": "rnbqkbnr/pppppp1p/6p1/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq", "id": 1312, "m": "d2d4 g7g6"},
{"c": "A40", "n": "Modern Defense: Beefeater Variation", "f": "rnbqk1nr/pp1pp2p/6p1/2pP1p2/2P5/2P5/P3PPPP/R1BQKBNR w KQkq", "id": 1289, "m": "d2d4 g7g6 c2c4 f8g7 b1c3 c7c5 d4d5 g7c3 b2c3 f7f5"},
{"c": "A40", "n": "Modern Defense: Dunworthy Variation", "f": "rnbqk1nr/pp2pp1p/2P3p1/8/2Pb4/8/PP3PPP/RNBQKBNR w KQkq", "id": 1292, "m": "e2e4 g7g6 d2d4 f8g7 c2c4 d7d5 e4d5 c7c6 d5c6 g7d4"},
{"c": "A40", "n": "Modern Defense: Lizard Defense, Pirc-Diemer Gambit", "f": "rnbqkb1r/pppppp1p/5np1/7P/3P4/8/PPP1PPP1/RNBQKBNR b KQkq", "id": 1301, "m": "d2d4 g7g6 h2h4 g8f6 h4h5"},
{"c": "A40", "n": "Modern Defense: Semi-Averbakh Variation, Polish Variation", "f": "rnb1k1nr/pp1pppbp/1q4p1/2p5/2PPP3/5N2/PP3PPP/RNBQKB1R w KQkq", "id": 1314, "m": "g1f3 c7c5 c2c4 g7g6 d2d4 f8g7 e2e4 d8b6"},
{"c": "A40", "n": "Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation", "f": "rnb1k1nr/pp1pppbp/6p1/q1p5/2PPP3/5N2/PP3PPP/RNBQKB1R w KQkq", "id": 1315, "m": "g1f3 c7c5 c2c4 g7g6 d2d4 f8g7 e2e4 d8a5"},
{"c": "A40", "n": "Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted", "f": "rnb1k1nr/pp2ppbp/3p2p1/q1P5/2P1P3/5N2/PP3PPP/RNBQKB1R w KQkq", "id": 1316, "m": "g1f3 g7g6 d2d4 f8g7 e2e4 d7d6 c2c4 c7c5 d4c5 d8a5"},
{"c": "A40", "n": "Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Declined", "f": "rnb1k1nr/pp2ppbp/3p2p1/q1p5/2PPP3/5N2/PP2BPPP/RNBQK2R w KQkq", "id": 1317, "m": "e2e4 g7g6 d2d4 f8g7 c2c4 c7c5 g1f3 d7d6 f1e2 d8a5"},
{"c": "A40", "n": "Montevideo Defense", "f": "rnbqkbnr/pppppppp/8/3P4/8/8/PPP1PPPP/RNBQKBNR w KQkq", "id": 2772, "m": "d2d4 b8c6 d4d5 c6b8"},
{"c": "A40", "n": "Polish Defense", "f": "rnbqkbnr/p1pppppp/8/1p6/3P4/8/PPP1PPPP/RNBQKBNR w KQkq", "id": 1541, "m": "d2d4 b7b5"},
{"c": "A40", "n": "Polish Defense: Spassky Gambit Accepted", "f": "rn1qkbnr/pbpppppp/8/1B6/3PP3/8/PPP2PPP/RNBQK1NR b KQkq", "id": 1542, "m": "d2d4 b7b5 e2e4 c8b7 f1b5"},
{"c": "A40", "n": "Pterodactyl Defense: Fianchetto, Queen Benoni Pterodactyl", "f": "rnb1k1nr/pp1pppbp/6p1/q1pP4/2P5/2N5/PP2PPPP/R1BQKBNR w KQkq", "id": 859, "m": "d2d4 g7g6 c2c4 f8g7 b1c3 c7c5 d4d5 d8a5"},
{"c": "A40", "n": "Pterodactyl Defense: Fianchetto, Queen Pteranodon", "f": "rnb1k1nr/pp1ppp1p/6p1/q1pP4/2P5/2P5/P3PPPP/R1BQKBNR w KQkq", "id": 890, "m": "d2d4 g7g6 c2c4 f8g7 b1c3 c7c5 d4d5 g7c3 b2c3 d8a5"},
{"c": "A40", "n": "Pterodactyl Defense: Fianchetto, Queen Pterodactyl", "f": "rnb1k1nr/pp1pppbp/6p1/q1p5/3P4/5NP1/PPP1PPBP/RNBQK2R w KQkq", "id": 830, "m": "d2d4 g7g6 g1f3 f8g7 g2g3 c7c5 f1g2 d8a5"},
{"c": "A40", "n": "Pterodactyl Defense: Queen Pterodactyl, Quiet Line", "f": "rnbqk1nr/pp1pppbp/6p1/2p5/2PP4/2N1P3/PP3PPP/R1BQKBNR b KQkq", "id": 2812, "m": "d2d4 g7g6 c2c4 f8g7 b1c3 c7c5 e2e3"},
{"c": "A40", "n": "Queen's Pawn", "f": "rnbqkbnr/pppppppp/8/8/3P4/8/PPP1PPPP/RNBQKBNR b KQkq", "id": 1623, "m": "d2d4"},
{"c": "A40", "n": "Queen's Pawn Game: Englund Gambit", "f": "r1b1kb1r/ppppq1pp/2n2n2/3Q4/8/5N2/PPP1PPPP/RNB1KB1R w KQkq", "id": 3007, "m": "d2d4 e7e5 d4e5 b8c6 g1f3 d8e7 d1d5 f7f6 e5f6 g8f6"},
{"c": "A40", "n": "St. George Defense: St. George Gambit", "f": "rnbqkbnr/2pp1ppp/4p3/1p6/3PP3/8/PP3PPP/RNBQKBNR w KQkq", "id": 2530, "m": "e2e4 e7e6 d2d4 a7a6 c2c4 b7b5 c4b5 a6b5"},
{"c": "A40", "n": "Ware Defense: Snagglepuss Defense", "f": "r1bqkbnr/1ppppppp/2n5/p7/3PP3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 2678, "m": "e2e4 a7a5 d2d4 b8c6"},
{"c": "A41", "n": "English Rat: Pounds Gambit", "f": "rn1qkbnr/ppp2ppp/3pb3/4P3/2P5/8/PP2PPPP/RNBQKBNR w KQkq", "id": 2967, "m": "d2d4 d7d6 c2c4 e7e5 d4e5 c8e6"},
{"c": "A41", "n": "Modern Defense", "f": "rnbqk1nr/ppp1ppbp/3p2p1/8/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq", "id": 1295, "m": "d2d4 g7g6 c2c4 f8g7 b1c3 d7d6"},
{"c": "A41", "n": "Modern Defense: Averbakh System", "f": "rnbqk1nr/ppp1ppbp/3p2p1/8/2PPP3/2N5/PP3PPP/R1BQKBNR b KQkq", "id": 3440, "m": "d2d4 g7g6 c2c4 f8g7 b1c3 d7d6 e2e4"},
{"c": "A41", "n": "Modern Defense: Kotov Variation", "f": "r1bqk1nr/ppp1ppbp/2np2p1/8/2PPP3/2N5/PP3PPP/R1BQKBNR w KQkq", "id": 3443, "m": "d2d4 g7g6 c2c4 f8g7 b1c3 d7d6 e2e4 b8c6"},
{"c": "A41", "n": "Modern Defense: Neo-Modern Defense", "f": "rnbqk1nr/pppp1pbp/6p1/4p3/2PPP3/8/PP3PPP/RNBQKBNR w KQkq", "id": 1306, "m": "c2c4 g7g6 e2e4 f8g7 d2d4 e7e5"},
{"c": "A41", "n": "Modern Defense: Randspringer Variation", "f": "rnbqk1nr/ppp1p1bp/3p2p1/5p2/2PPP3/2N5/PP3PPP/R1BQKBNR w KQkq", "id": 3442, "m": "d2d4 g7g6 c2c4 f8g7 b1c3 d7d6 e2e4 f7f5"},
{"c": "A41", "n": "Old Indian Defense", "f": "rnbqkbnr/ppp1pppp/3p4/8/2PP4/8/PP2PPPP/RNBQKBNR b KQkq", "id": 3008, "m": "d2d4 d7d6 c2c4"},
{"c": "A41", "n": "Pterodactyl Defense", "f": "rnb1k1nr/pp2ppbp/3p2p1/q1p5/2PPP3/2N2N2/PP3PPP/R1BQKB1R w KQkq", "id": 3441, "m": "g1f3 c7c5 c2c4 g7g6 d2d4 f8g7 e2e4 d8a5 b1c3 d7d6"},
{"c": "A41", "n": "Queen's Pawn", "f": "rnbqkbnr/ppp1pppp/3p4/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq", "id": 1834, "m": "d2d4 d7d6"},
{"c": "A41", "n": "Queen's Pawn Game: Anglo-Slav Opening", "f": "rnbqkbnr/pp2pppp/2pp4/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq", "id": 1571, "m": "d2d4 c7c6 c2c4 d7d6"},
{"c": "A41", "n": "Rat Defense: English Rat", "f": "rnbqkbnr/ppp2ppp/3p4/4p3/2PP4/8/PP2PPPP/RNBQKBNR w KQkq", "id": 2768, "m": "d2d4 d7d6 c2c4 e7e5"},
{"c": "A41", "n": "Rat Defense: English Rat, Lisbon Gambit", "f": "r1bqkbnr/ppp2ppp/2np4/4P3/2P5/8/PP2PPPP/RNBQKBNR w KQkq", "id": 2769, "m": "d2d4 d7d6 c2c4 e7e5 d4e5 b8c6"},
{"c": "A41", "n": "Robatsch Defense", "f": "rn1qk1nr/ppp1ppbp/3p2p1/8/2PPP1b1/5N2/PP3PPP/RNBQKB1R w KQkq", "id": 3439, "m": "d2d4 d7d6 g1f3 g7g6 c2c4 f8g7 e2e4 c8g4"},
{"c": "A41", "n": "Wade Defense", "f": "rn1qkbnr/ppp1pppp/3p4/8/3P2b1/5N2/PPP1PPPP/RNBQKB1R w KQkq", "id": 2676, "m": "d2d4 d7d6 g1f3 c8g4"},
{"c": "A41", "n": "Zukertort Opening: Wade Defense, Chigorin Plan", "f": "1r1qkbnr/pppnpppp/3p4/8/2PP2b1/1Q3N2/PP2PPPP/RNB1KB1R w KQk", "id": 2707, "m": "d2d4 d7d6 g1f3 c8g4 c2c4 b8d7 d1b3 a8b8"},
{"c": "A42", "n": "Modern Defense: Averbakh Variation, Pseudo-Sämisch", "f": "rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/4BP2/PP4PP/RN1QKBNR b KQkq", "id": 1288, "m": "c2c4 g7g6 e2e4 f8g7 d2d4 d7d6 c1e3 g8f6 f2f3"},
{"c": "A42", "n": "Sicilian Defense: Hyperaccelerated Fianchetto", "f": "rnbqkbnr/pp1ppp1p/6p1/2p5/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq", "id": 2105, "m": "e2e4 c7c5 g1f3 g7g6 d2d4"},
{"c": "A43", "n": "Benoni Defense: Benoni Gambit Accepted", "f": "rnbqkbnr/pp1ppppp/8/2P5/8/8/PPP1PPPP/RNBQKBNR b KQkq", "id": 78, "m": "d2d4 c7c5 d4c5"},
{"c": "A43", "n": "Benoni Defense: Benoni Gambit, Schlenker Defense", "f": "r1bqkbnr/pp1ppppp/n7/2P5/8/8/PPP1PPPP/RNBQKBNR w KQkq", "id": 77, "m": "d2d4 c7c5 d4c5 b8a6"},
{"c": "A43", "n": "Benoni Defense: Benoni-Indian Defense", "f": "rnbqkb1r/pp1ppppp/5n2/2pP4/8/8/PPP1PPPP/RNBQKBNR w KQkq", "id": 79, "m": "d2d4 c7c5 d4d5 g8f6"},
{"c": "A43", "n": "Benoni Defense: Benoni-Indian Defense, Kingside Move Order", "f": "rnbqkb1r/pp1ppppp/5n2/2pP4/8/5N2/PPP1PPPP/RNBQKB1R b KQkq", "id": 80, "m": "d2d4 g8f6 g1f3 c7c5 d4d5"},
{"c": "A43", "n": "Benoni Defense: Benoni-Staunton Gambit", "f": "rnbqkbnr/pp1pp1pp/8/2pP1p2/4P3/8/PPP2PPP/RNBQKBNR b KQkq", "id": 81, "m": "d2d4 c7c5 d4d5 f7f5 e2e4"},
{"c": "A43", "n": "Benoni Defense: Cormorant Gambit", "f": "rnbqkbnr/p2ppppp/1p6/2P5/8/8/PPP1PPPP/RNBQKBNR w KQkq", "id": 90, "m": "d2d4 c7c5 d4c5 b7b6"},
{"c": "A43", "n": "Benoni Defense: Franco-Sicilian Hybrid", "f": "rnbqk2r/pp2npbp/3p2p1/2pP4/4P3/2N2N2/PP3PPP/R1BQKB1R w KQkq", "id": 98, "m": "d2d4 e7e6 c2c4 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 g1f3 g8e7"},
{"c": "A43", "n": "Benoni Defense: Hawk Variation", "f": "rnbqkb1r/pp1ppppp/5n2/3P4/2p5/5N2/PPP1PPPP/RNBQKB1R w KQkq", "id": 100, "m": "d2d4 g8f6 g1f3 c7c5 d4d5 c5c4"},
{"c": "A43", "n": "Benoni Defense: Old Benoni", "f": "rnbqkbnr/pp2pppp/3p4/2pP4/8/8/PPP1PPPP/RNBQKBNR w KQkq", "id": 111, "m": "d2d4 c7c5 d4d5 d7d6"},
{"c": "A43", "n": "Benoni Defense: Old Benoni, Schmid Variation", "f": "rnbqkbnr/pp2pp1p/3p2p1/2pP4/8/2N5/PPP1PPPP/R1BQKBNR w KQkq", "id": 114, "m": "d2d4 c7c5 d4d5 d7d6 b1c3 g7g6"},
{"c": "A43", "n": "Benoni Defense: Snail Variation", "f": "r1bqkbnr/pp1ppppp/n7/2pP4/8/8/PPP1PPPP/RNBQKBNR w KQkq", "id": 117, "m": "d2d4 c7c5 d4d5 b8a6"},
{"c": "A43", "n": "Benoni Defense: Woozle", "f": "rnb1kb1r/pp1ppppp/5n2/q1pP4/8/2N5/PPP1PPPP/R1BQKBNR w KQkq", "id": 123, "m": "d2d4 c7c5 d4d5 g8f6 b1c3 d8a5"},
{"c": "A43", "n": "Benoni Defense: Zilbermints-Benoni Gambit", "f": "rnbqkbnr/pp1ppppp/8/2p5/1P1P4/8/P1P1PPPP/RNBQKBNR b KQkq", "id": 124, "m": "d2d4 c7c5 b2b4"},
{"c": "A43", "n": "Franco-Benoni Defense", "f": "rnbqkbnr/pp1p1ppp/4p3/2pP4/4P3/8/PPP2PPP/RNBQKBNR b KQkq", "id": 97, "m": "e2e4 e7e6 d2d4 c7c5 d4d5"},
{"c": "A43", "n": "Old Benoni Defense", "f": "rnbqkbnr/pp1ppppp/8/2p5/3P4/8/PPP1PPPP/RNBQKBNR w KQkq", "id": 3009, "m": "d2d4 c7c5"},
{"c": "A43", "n": "Old Benoni Defense", "f": "rnbqkbnr/pp1ppppp/8/2pP4/8/8/PPP1PPPP/RNBQKBNR b KQkq", "id": 3444, "m": "d2d4 c7c5 d4d5"},
{"c": "A43", "n": "Old Benoni Defense: Mujannah Formation", "f": "rnbqkbnr/pp1pp1pp/8/2pP1p2/8/8/PPP1PPPP/RNBQKBNR w KQkq", "id": 115, "m": "d2d4 c7c5 d4d5 f7f5"},
{"c": "A43", "n": "Queen's Pawn Game: Liedmann Gambit", "f": "rnbqkbnr/pp1ppppp/8/8/2Pp4/4P3/PP3PPP/RNBQKBNR b KQkq", "id": 2956, "m": "d2d4 c7c5 c2c4 c5d4 e2e3"},
{"c": "A44", "n": "Old Benoni Defense", "f": "rnbqkbnr/pp1p1ppp/8/2pPp3/8/8/PPP1PPPP/RNBQKBNR w KQkq", "id": 112, "m": "d2d4 c7c5 d4d5 e7e5"},
{"c": "A44", "n": "Semi-Benoni", "f": "rnbqkbnr/pp3ppp/3p4/2pPp3/4P3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 113, "m": "d2d4 c7c5 d4d5 e7e5 e2e4 d7d6"},
{"c": "A45", "n": "Bronstein Gambit", "f": "rnbqkb1r/pppppppp/5n2/8/3P2P1/8/PPP1PP1P/RNBQKBNR b KQkq", "id": 3010, "m": "d2d4 g8f6 g2g4"},
{"c": "A45", "n": "Canard Opening", "f": "rnbqkb1r/pppppppp/5n2/8/3P1P2/8/PPP1P1PP/RNBQKBNR b KQkq", "id": 2535, "m": "d2d4 g8f6 f2f4"},
{"c": "A45", "n": "Indian Game", "f": "rnbqkb1r/pppppppp/5n2/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq", "id": 828, "m": "d2d4 g8f6"},
{"c": "A45", "n": "Indian Game: Gedult Attack, Gedult Attack", "f": "rnbqkb1r/ppp1pppp/5n2/3p4/3P2P1/5P2/PPP1P2P/RNBQKBNR b KQkq", "id": 827, "m": "d2d4 g8f6 f2f3 d7d5 g2g4"},
{"c": "A45", "n": "Indian Game: Gibbins-Wiedenhagen Gambit Accepted", "f": "rnbqkb1r/pppppppp/8/8/3P2n1/8/PPP1PP1P/RNBQKBNR w KQkq", "id": 829, "m": "d2d4 g8f6 g2g4 f6g4"},
{"c": "A45", "n": "Indian Game: Gibbins-Wiedenhagen Gambit, Maltese Falcon", "f": "rnbqkb1r/pppppppp/5n2/8/3PP3/5P2/PPP4P/RNBQKBNR b KQkq", "id": 831, "m": "d2d4 g8f6 g2g4 f6g4 f2f3 g4f6 e2e4"},
{"c": "A45", "n": "Indian Game: Gibbins-Wiedenhagen Gambit, Oshima Defense", "f": "rnbqkb1r/pppp1ppp/5n2/4p3/3P2P1/8/PPP1PP1P/RNBQKBNR w KQkq", "id": 832, "m": "d2d4 g8f6 g2g4 e7e5"},
{"c": "A45", "n": "Indian Game: Gibbins-Wiedenhagen Gambit, Stummer Gambit", "f": "rnbqkb1r/ppp1pppp/3p1n2/8/3PP3/2N5/PPP1BP1P/R1BQK1NR b KQkq", "id": 833, "m": "d2d4 g8f6 g2g4 f6g4 e2e4 d7d6 f1e2 g4f6 b1c3"},
{"c": "A45", "n": "Indian Game: Lazard Gambit", "f": "rnbqkb1r/pppp1ppp/5n2/4p3/3P4/8/PPPNPPPP/R1BQKBNR w KQkq", "id": 835, "m": "d2d4 g8f6 b1d2 e7e5"},
{"c": "A45", "n": "Indian Game: Maddigan Gambit", "f": "rnbqkb1r/pppp1ppp/5n2/4p3/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq", "id": 838, "m": "d2d4 g8f6 b1c3 e7e5"},
{"c": "A45", "n": "Indian Game: Omega Gambit", "f": "rnbqkb1r/pppppppp/5n2/8/3PP3/8/PPP2PPP/RNBQKBNR b KQkq", "id": 841, "m": "d2d4 g8f6 e2e4"},
{"c": "A45", "n": "Indian Game: Omega Gambit, Arafat Gambit", "f": "rnbqkb1r/pppppppp/5n2/6B1/3P4/3B4/PPP2PPP/RN1QK1NR b KQkq", "id": 842, "m": "d2d4 g8f6 e2e4 f6e4 f1d3 e4f6 c1g5"},
{"c": "A45", "n": "Indian Game: Paleface Attack, Blackmar-Diemer Gambit Deferred", "f": "rnbqkb1r/ppp1pppp/5n2/3p4/3PP3/5P2/PPP3PP/RNBQKBNR b KQkq", "id": 844, "m": "d2d4 g8f6 f2f3 d7d5 e2e4"},
{"c": "A45", "n": "Indian Game: Pawn Push Variation", "f": "rnbqkb1r/pppppppp/5n2/3P4/8/8/PPP1PPPP/RNBQKBNR b KQkq", "id": 845, "m": "d2d4 g8f6 d4d5"},
{"c": "A45", "n": "Indian Game: Reversed Chigorin Defense", "f": "rnbqkb1r/pp1ppppp/5n2/2p5/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq", "id": 851, "m": "d2d4 g8f6 b1c3 c7c5"},
{"c": "A45", "n": "Indian Game: Tartakower Attack", "f": "rnbqkb1r/pppppppp/5n2/8/3P4/6P1/PPP1PP1P/RNBQKBNR b KQkq", "id": 2822, "m": "d2d4 g8f6 g2g3"},
{"c": "A45", "n": "Paleface Attack", "f": "rnbqkb1r/pppppppp/5n2/8/3P4/5P2/PPP1P1PP/RNBQKBNR b KQkq", "id": 843, "m": "d2d4 g8f6 f2f3"},
{"c": "A45", "n": "Trompowsky Attack", "f": "rnbqkb1r/pppppppp/5n2/6B1/3P4/8/PPP1PPPP/RN1QKBNR b KQkq", "id": 2582, "m": "d2d4 g8f6 c1g5"},
{"c": "A45", "n": "Trompowsky Attack: Borg Variation", "f": "rnbqkb1r/pppppp1p/8/6p1/3PnB2/8/PPP1PPPP/RN1QKBNR w KQkq", "id": 2578, "m": "d2d4 g8f6 c1g5 f6e4 g5f4 g7g5"},
{"c": "A45", "n": "Trompowsky Attack: Classical Defense", "f": "rnbqkb1r/pppp1ppp/4pn2/6B1/3P4/8/PPP1PPPP/RN1QKBNR w KQkq", "id": 2820, "m": "d2d4 g8f6 c1g5 e7e6"},
{"c": "A45", "n": "Trompowsky Attack: Classical Defense, Big Center Variation", "f": "rnbqkb1r/pppp1ppp/4pn2/6B1/3PP3/8/PPP2PPP/RN1QKBNR b KQkq", "id": 2821, "m": "d2d4 g8f6 c1g5 e7e6 e2e4"},
{"c": "A45", "n": "Trompowsky Attack: Edge Variation", "f": "rnbqkb1r/pppppppp/8/8/3Pn2B/8/PPP1PPPP/RN1QKBNR b KQkq", "id": 2579, "m": "d2d4 g8f6 c1g5 f6e4 g5h4"},
{"c": "A45", "n": "Trompowsky Attack: Edge Variation, Hergert Gambit", "f": "rn1qkb1r/ppp1pppp/5n2/3p1b2/3PP2B/2N2P2/PPP3PP/R2QKBNR b KQkq", "id": 2580, "m": "d2d4 g8f6 c1g5 f6e4 g5h4 d7d5 f2f3 e4f6 b1c3 c8f5 e2e4"},
{"c": "A45", "n": "Trompowsky Attack: Edge Variation, Hergert Gambit", "f": "rnb1kb1r/pp2pppp/2p5/q2p4/3PP2B/2P5/PP1Q1PPP/R3KBNR b KQkq", "id": 2581, "m": "d2d4 g8f6 c1g5 f6e4 g5h4 c7c6 b1d2 d8a5 c2c3 e4d2 d1d2 d7d5 e2e4"},
{"c": "A45", "n": "Trompowsky Attack: Poisoned Pawn Variation", "f": "rnb1kb1r/pp1ppppp/1q3n2/2pP2B1/8/2N5/PPP1PPPP/R2QKBNR b KQkq", "id": 2583, "m": "d2d4 g8f6 c1g5 c7c5 d4d5 d8b6 b1c3"},
{"c": "A45", "n": "Trompowsky Attack: Raptor Variation", "f": "rnbqkb1r/pppppppp/8/6B1/3Pn2P/8/PPP1PPP1/RN1QKBNR b KQkq", "id": 2584, "m": "d2d4 g8f6 c1g5 f6e4 h2h4"},
{"c": "A45", "n": "Trompowsky Attack: Raptor Variation, Hergert Gambit", "f": "rnbqkb1r/pppp1ppp/8/4p1P1/3P4/8/PPP1PPP1/RN1QKBNR w KQkq", "id": 2585, "m": "d2d4 g8f6 c1g5 f6e4 h2h4 e4g5 h4g5 e7e5"},
{"c": "A46", "n": "Doery Defense", "f": "rnbqkb1r/pppppppp/8/8/3Pn3/5N2/PPP1PPPP/RNBQKB1R w KQkq", "id": 3011, "m": "d2d4 g8f6 g1f3 f6e4"},
{"c": "A46", "n": "Indian Game: Czech-Indian", "f": "rnbqkb1r/pp1ppppp/2p2n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq", "id": 822, "m": "d2d4 g8f6 g1f3 c7c6"},
{"c": "A46", "n": "Indian Game: Knights Variation, Alburt-Miles Variation", "f": "rnbqkb1r/1ppppppp/p4n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq", "id": 2824, "m": "d2d4 g8f6 g1f3 a7a6"},
{"c": "A46", "n": "Indian Game: London System", "f": "rnbqkb1r/pppp1ppp/4pn2/8/3P1B2/5N2/PPP1PPPP/RN1QKB1R b KQkq", "id": 836, "m": "d2d4 g8f6 g1f3 e7e6 c1f4"},
{"c": "A46", "n": "Indian Game: Polish Variation", "f": "rnbqkb1r/p1pppppp/5n2/1p6/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq", "id": 2827, "m": "d2d4 g8f6 g1f3 b7b5"},
{"c": "A46", "n": "Indian Game: Pseudo-Benko", "f": "rnbqkb1r/p2ppppp/5n2/1ppP4/8/5N2/PPP1PPPP/RNBQKB1R w KQkq", "id": 847, "m": "d2d4 g8f6 g1f3 c7c5 d4d5 b7b5"},
{"c": "A46", "n": "Indian Game: Spielmann-Indian", "f": "rnbqkb1r/pp1ppppp/5n2/2p5/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq", "id": 855, "m": "d2d4 g8f6 g1f3 c7c5"},
{"c": "A46", "n": "Indian Game: Wade-Tartakower Defense", "f": "rnbqkb1r/ppp1pppp/3p1n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq", "id": 2826, "m": "d2d4 g8f6 g1f3 d7d6"},
{"c": "A46", "n": "Torre Attack", "f": "rnbqkb1r/pppp1ppp/4pn2/6B1/3P4/5N2/PPP1PPPP/RN1QKB1R b KQkq", "id": 2572, "m": "d2d4 g8f6 g1f3 e7e6 c1g5"},
{"c": "A46", "n": "Torre Attack", "f": "rnbqkb1r/pppppppp/5n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R b KQkq", "id": 3431, "m": "d2d4 g8f6 g1f3"},
{"c": "A46", "n": "Torre Attack: Classical Defense, Nimzowitsch Variation", "f": "rnbqkb1r/pppp1pp1/4pn1p/6B1/3P4/5N2/PPP1PPPP/RN1QKB1R w KQkq", "id": 2573, "m": "d2d4 g8f6 g1f3 e7e6 c1g5 h7h6"},
{"c": "A46", "n": "Torre Attack: Classical Defense, Petrosian Gambit", "f": "rnbqkb1r/p2p1ppp/1p2pn2/2pP2B1/8/4PN2/PPP2PPP/RN1QKB1R b KQkq", "id": 2574, "m": "d2d4 g8f6 g1f3 e7e6 c1g5 c7c5 e2e3 b7b6 d4d5"},
{"c": "A46", "n": "Torre Attack: Wagner Gambit", "f": "rnbqkb1r/pp1p1ppp/4pn2/2p3B1/3PP3/5N2/PPP2PPP/RN1QKB1R b KQkq", "id": 2577, "m": "d2d4 g8f6 g1f3 e7e6 c1g5 c7c5 e2e4"},
{"c": "A46", "n": "Yusupov-Rubinstein System", "f": "rnbqkb1r/pppp1ppp/4pn2/8/3P4/4PN2/PPP2PPP/RNBQKB1R b KQkq", "id": 857, "m": "d2d4 g8f6 g1f3 e7e6 e2e3"},
{"c": "A47", "n": "Indian Game: Schnepper Gambit", "f": "rnbqkb1r/p1pp1ppp/1p3n2/4p3/3P4/2P2N2/PP2PPPP/RNBQKB1R w KQkq", "id": 853, "m": "d2d4 g8f6 g1f3 b7b6 c2c3 e7e5"},
{"c": "A47", "n": "Marienbad System", "f": "rn1qkb1r/pb1ppppp/1p3n2/2p5/3P4/5NP1/PPP1PPBP/RNBQK2R w KQkq", "id": 850, "m": "d2d4 g8f6 g1f3 b7b6 g2g3 c8b7 f1g2 c7c5"},
{"c": "A47", "n": "Queen's Indian Defense", "f": "rnbqkb1r/p1pppppp/1p3n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq", "id": 2825, "m": "d2d4 g8f6 g1f3 b7b6"},
{"c": "A47", "n": "Queen's Indian Defense: Marienbad System, Berg Variation", "f": "rn1qkb1r/pb1ppppp/1p3n2/8/2PQ4/5NP1/PP2PPBP/RNB1K2R b KQkq", "id": 849, "m": "d2d4 g8f6 g1f3 b7b6 g2g3 c8b7 f1g2 c7c5 c2c4 c5d4 d1d4"},
{"c": "A48", "n": "Indian Game: Colle System, King's Indian Variation", "f": "rnbqk2r/ppp1ppbp/3p1np1/8/3P4/3BPN2/PPP2PPP/RNBQK2R w KQkq", "id": 821, "m": "e2e3 d7d6 d2d4 g7g6 g1f3 f8g7 f1d3 g8f6"},
{"c": "A48", "n": "London System", "f": "rnbqkb1r/pppppp1p/5np1/8/3P1B2/5N2/PPP1PPPP/RN1QKB1R b KQkq", "id": 837, "m": "d2d4 g8f6 g1f3 g7g6 c1f4"},
{"c": "A48", "n": "Queen's Pawn Game: Colle System, Grünfeld Formation", "f": "rnbqk2r/ppp1ppbp/5np1/3p4/3P4/3BPN2/PPP2PPP/RNBQK2R w KQkq", "id": 1580, "m": "d2d4 d7d5 g1f3 g8f6 e2e3 g7g6 f1d3 f8g7"},
{"c": "A48", "n": "Torre Attack", "f": "rnbqkb1r/pppppp1p/5np1/6B1/3P4/5N2/PPP1PPPP/RN1QKB1R b KQkq", "id": 2575, "m": "d2d4 g8f6 g1f3 g7g6 c1g5"},
{"c": "A48", "n": "Torre Attack: Fianchetto Defense, Euwe Variation", "f": "rnbqk2r/pp1pppbp/5np1/2p3B1/3P4/5N2/PPPNPPPP/R2QKB1R w KQkq", "id": 2576, "m": "d2d4 g8f6 g1f3 g7g6 c1g5 f8g7 b1d2 c7c5"},
{"c": "A49", "n": "East Indian Defense", "f": "rnbqkb1r/pppppp1p/5np1/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq", "id": 848, "m": "d2d4 g8f6 g1f3 g7g6"},
{"c": "A49", "n": "Indian Game: King's Indian Variation, Fianchetto Variation", "f": "rnbqk2r/ppppppbp/5np1/8/2PP4/6P1/PP2PPBP/RNBQK1NR b KQkq", "id": 2829, "m": "d2d4 g8f6 c2c4 g7g6 g2g3 f8g7 f1g2"},
{"c": "A49", "n": "Indian Game: Przepiorka Variation", "f": "rnbqkb1r/pppppp1p/5np1/8/3P4/5NP1/PPP1PP1P/RNBQKB1R b KQkq", "id": 846, "m": "d2d4 g8f6 g1f3 g7g6 g2g3"},
{"c": "A49", "n": "Zukertort Opening: Double Fianchetto Attack", "f": "rnbq1rk1/ppp1ppbp/3p1np1/8/8/1P3NP1/PBPPPPBP/RN1Q1RK1 b -", "id": 2686, "m": "g1f3 g8f6 g2g3 g7g6 b2b3 f8g7 c1b2 e8g8 f1g2 d7d6 e1g1"},
{"c": "A49", "n": "Zukertort Opening: Grünfeld Reversed", "f": "r1bqkbnr/pp3ppp/2n1p3/2pp4/3P4/5NP1/PPP1PPBP/RNBQ1RK1 b kq", "id": 2689, "m": "g1f3 d7d5 g2g3 c7c5 f1g2 b8c6 d2d4 e7e6 e1g1"},
{"c": "A50", "n": "English Defense: Blumenfeld-Hiva Gambit", "f": "rnbqkbnr/p2p2pp/4p3/1PpP1p2/4P3/8/PP3PPP/RNBQKBNR w KQkq", "id": 2953, "m": "d2d4 b7b6 c2c4 c7c5 d4d5 e7e6 e2e4 b6b5 c4b5 f7f5"},
{"c": "A50", "n": "Indian Game: Medusa Gambit", "f": "rnbqkb1r/pppppp1p/5n2/6p1/2PP4/8/PP2PPPP/RNBQKBNR w KQkq", "id": 839, "m": "d2d4 g8f6 c2c4 g7g5"},
{"c": "A50", "n": "Indian Game: Normal Variation", "f": "rnbqkb1r/pppppppp/5n2/8/2PP4/8/PP2PPPP/RNBQKBNR b KQkq", "id": 840, "m": "d2d4 g8f6 c2c4"},
{"c": "A50", "n": "Indian Game: Pyrenees Gambit", "f": "rnbqkb1r/p1pppppp/5n2/1p6/2PP4/8/PP2PPPP/RNBQKBNR w KQkq", "id": 2729, "m": "d2d4 g8f6 c2c4 b7b5"},
{"c": "A50", "n": "Mexican Defense", "f": "r1bqkb1r/pppppppp/2n2n2/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq", "id": 1279, "m": "d2d4 g8f6 c2c4 b8c6"},
{"c": "A50", "n": "Mexican Defense: Horsefly Gambit", "f": "r1bqkb1r/pppppppp/5n2/3Pn3/2P2P2/8/PP2P1PP/RNBQKBNR b KQkq", "id": 1280, "m": "d2d4 g8f6 c2c4 b8c6 d4d5 c6e5 f2f4"},
{"c": "A50", "n": "Queen's Indian Accelerated", "f": "rnbqkb1r/p1pppppp/1p3n2/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq", "id": 852, "m": "d2d4 g8f6 c2c4 b7b6"},
{"c": "A50", "n": "Slav Indian", "f": "rnbqkb1r/pp1ppppp/2p2n2/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq", "id": 2911, "m": "d2d4 g8f6 c2c4 c7c6"},
{"c": "A50", "n": "Slav Indian: Kudischewitsch Gambit", "f": "rnbqkb1r/p2ppppp/2p2n2/1p6/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq", "id": 2912, "m": "d2d4 c7c6 g1f3 g8f6 c2c4 b7b5"},
{"c": "A51", "n": "Budapest Defense: Fajarowicz Defense, Bonsdorf Variation", "f": "rnbqkb1r/p1pp1ppp/1p6/4P3/2P1n3/P7/1P2PPPP/RNBQKBNR w KQkq", "id": 237, "m": "d2d4 g8f6 c2c4 e7e5 d4e5 f6e4 a2a3 b7b6"},
{"c": "A51", "n": "Budapest Defense: Fajarowicz Variation", "f": "rnbqkb1r/pppp1ppp/8/4P3/2P1n3/8/PP2PPPP/RNBQKBNR w KQkq", "id": 238, "m": "d2d4 g8f6 c2c4 e7e5 d4e5 f6e4"},
{"c": "A51", "n": "Budapest Defense: Fajarowicz-Steiner Variation", "f": "rnbqkb1r/pppp1ppp/8/4P3/2P1n3/8/PPQ1PPPP/RNB1KBNR b KQkq", "id": 236, "m": "d2d4 g8f6 c2c4 e7e5 d4e5 f6e4 d1c2"},
{"c": "A51", "n": "Indian Game: Budapest Defense", "f": "rnbqkb1r/pppp1ppp/5n2/4p3/2PP4/8/PP2PPPP/RNBQKBNR w KQkq", "id": 819, "m": "d2d4 g8f6 c2c4 e7e5"},
{"c": "A52", "n": "Budapest Defense", "f": "rnbqkb1r/pppp1ppp/8/4P3/2P3n1/8/PP2PPPP/RNBQKBNR w KQkq", "id": 239, "m": "d2d4 g8f6 c2c4 e7e5 d4e5 f6g4"},
{"c": "A52", "n": "Budapest Defense: Adler Variation", "f": "rnbqkb1r/pppp1ppp/8/4P3/2P3n1/5N2/PP2PPPP/RNBQKB1R b KQkq", "id": 232, "m": "d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 g1f3"},
{"c": "A52", "n": "Budapest Defense: Alekhine Variation", "f": "rnbqkb1r/pppp1ppp/8/4P3/2P1P1n1/8/PP3PPP/RNBQKBNR b KQkq", "id": 233, "m": "d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 e2e4"},
{"c": "A52", "n": "Budapest Defense: Alekhine Variation, Abonyi Variation", "f": "rnbqkb1r/pppp1ppp/2n5/8/2P1PP2/8/PP4PP/RNBQKBNR w KQkq", "id": 234, "m": "d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 e2e4 g4e5 f2f4 e5c6"},
{"c": "A52", "n": "Budapest Defense: Alekhine Variation, Tartakower Defense", "f": "rnbqkb1r/ppp2ppp/3p4/4P3/2P1P1n1/8/PP3PPP/RNBQKBNR w KQkq", "id": 235, "m": "d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 e2e4 d7d6"},
{"c": "A52", "n": "Budapest Defense: Rubinstein Variation", "f": "rnbqkb1r/pppp1ppp/8/4P3/2P2Bn1/8/PP2PPPP/RN1QKBNR b KQkq", "id": 240, "m": "d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 c1f4"},
{"c": "A53", "n": "Old Indian Defense", "f": "rnbqkb1r/ppp1pppp/3p1n2/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq", "id": 1470, "m": "d2d4 g8f6 c2c4 d7d6"},
{"c": "A53", "n": "Old Indian Defense: Janowski Variation", "f": "rn1qkb1r/ppp1pppp/3p1n2/5b2/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq", "id": 1471, "m": "d2d4 g8f6 c2c4 d7d6 b1c3 c8f5"},
{"c": "A53", "n": "Old Indian Defense: Janowski Variation, Fianchetto Variation", "f": "rn1qkb1r/ppp1pppp/3p1n2/5b2/2PP4/2N3P1/PP2PP1P/R1BQKBNR b KQkq", "id": 2818, "m": "d2d4 g8f6 c2c4 d7d6 b1c3 c8f5 g2g3"},
{"c": "A53", "n": "Old Indian Defense: Janowski Variation, Fianchetto Variation", "f": "rn1qkb1r/ppp1pppp/3p1n2/5b2/2PP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq", "id": 2819, "m": "d2d4 g8f6 c2c4 d7d6 b1c3 c8f5 g1f3"},
{"c": "A53", "n": "Old Indian Defense: Janowski Variation, Grinberg Gambit", "f": "rn1qkb1r/ppp1pppp/3p1n2/5b2/2PPP3/2N5/PP3PPP/R1BQKBNR b KQkq", "id": 1472, "m": "d2d4 g8f6 c2c4 d7d6 b1c3 c8f5 e2e4"},
{"c": "A53", "n": "Old Indian Defense: Janowski Variation, Main Line", "f": "rn1qkb1r/ppp1pppp/3p1n2/5b2/2PP4/2N2P2/PP2P1PP/R1BQKBNR b KQkq", "id": 2817, "m": "d2d4 g8f6 c2c4 d7d6 b1c3 c8f5 f2f3"},
{"c": "A53", "n": "Old Indian: Aged Gibbon Gambit", "f": "rnbqkb1r/ppp1pppp/3p1n2/8/2PP2P1/8/PP2PP1P/RNBQKBNR b KQkq", "id": 1469, "m": "d2d4 g8f6 c2c4 d7d6 g2g4"},
{"c": "A53", "n": "Old Indian: Czech Variation", "f": "rnbqkb1r/pp2pppp/2pp1n2/8/2PP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq", "id": 2915, "m": "d2d4 g8f6 g1f3 c7c6 c2c4 d7d6 b1c3"},
{"c": "A53", "n": "Old Indian: Czech Variation, with Nc3", "f": "rnbqkb1r/pp2pppp/2pp1n2/8/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq", "id": 2914, "m": "d2d4 g8f6 c2c4 d7d6 b1c3 c7c6"},
{"c": "A53", "n": "Old Indian: Czech Variation, with Nf3", "f": "rnbqkb1r/pp2pppp/2pp1n2/8/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq", "id": 2913, "m": "d2d4 g8f6 g1f3 c7c6 c2c4 d7d6"},
{"c": "A54", "n": "Old Indian Defense: Dus-Khotimirsky Variation", "f": "r1bqkb1r/pppn1ppp/3p1n2/4p3/2PP4/2NBP3/PP3PPP/R1BQK1NR b KQkq", "id": 3012, "m": "d2d4 g8f6 c2c4 d7d6 b1c3 e7e5 e2e3 b8d7 f1d3"},
{"c": "A54", "n": "Old Indian Defense: Tartakower-Indian", "f": "rn1qkb1r/ppp1pppp/3p1n2/8/2PP2b1/5N2/PP2PPPP/RNBQKB1R w KQkq", "id": 1474, "m": "d2d4 g8f6 g1f3 d7d6 c2c4 c8g4"},
{"c": "A54", "n": "Old Indian Defense: Two Knights Variation", "f": "rnbqkb1r/ppp2ppp/3p1n2/4p3/2PP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq", "id": 1475, "m": "d2d4 g8f6 c2c4 d7d6 b1c3 e7e5 g1f3"},
{"c": "A54", "n": "Old Indian Defense: Ukrainian Variation", "f": "rnbqkb1r/ppp2ppp/3p1n2/4p3/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq", "id": 1476, "m": "d2d4 g8f6 c2c4 d7d6 b1c3 e7e5"},
{"c": "A55", "n": "Old Indian Defense: Normal Variation", "f": "r1bqkb1r/pppn1ppp/3p1n2/4p3/2PPP3/2N2N2/PP3PPP/R1BQKB1R b KQkq", "id": 1473, "m": "d2d4 g8f6 c2c4 d7d6 b1c3 b8d7 e2e4 e7e5 g1f3"},
{"c": "A56", "n": "Benoni Defense", "f": "rnbqkb1r/pp1ppppp/5n2/2p5/2PP4/8/PP2PPPP/RNBQKBNR w KQkq", "id": 106, "m": "d2d4 g8f6 c2c4 c7c5"},
{"c": "A56", "n": "Benoni Defense: Czech Benoni Defense", "f": "rnbqkb1r/pp1p1ppp/5n2/2pPp3/2P5/8/PP2PPPP/RNBQKBNR w KQkq", "id": 91, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 e7e5"},
{"c": "A56", "n": "Benoni Defense: King's Indian System", "f": "rnbqkb1r/pp3p1p/3p1np1/2pPp3/2P1P3/2N5/PP3PPP/R1BQKBNR w KQkq", "id": 103, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 e7e5 b1c3 d7d6 e2e4 g7g6"},
{"c": "A56", "n": "Benoni Defense: Weenink Variation", "f": "rnbqkb1r/pp1p1ppp/4pn2/2P5/2P5/8/PP2PPPP/RNBQKBNR w KQkq", "id": 122, "m": "d2d4 g8f6 c2c4 c7c5 d4c5 e7e6"},
{"c": "A56", "n": "Benoni Defense: Zilbermints-Benoni Gambit", "f": "rnbqkbnr/pp1ppppp/8/8/1P1p4/5N2/P1P1PPPP/RNBQKB1R b KQkq", "id": 2742, "m": "d2d4 c7c5 g1f3 c5d4 b2b4"},
{"c": "A56", "n": "Benoni Defense: Zilbermints-Benoni Gambit, Tamarkin Countergambit", "f": "rnbqkbnr/pp1p1ppp/8/4p3/1P1p4/5N2/P1P1PPPP/RNBQKB1R w KQkq", "id": 2743, "m": "d2d4 c7c5 g1f3 c5d4 b2b4 e7e5"},
{"c": "A56", "n": "Vulture Defense", "f": "rnbqkb1r/pp1ppppp/8/2pP4/2P1n3/8/PP2PPPP/RNBQKBNR w KQkq", "id": 3445, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 f6e4"},
{"c": "A57", "n": "Benko Gambit", "f": "rnbqkb1r/p2ppppp/5n2/1ppP4/2P5/8/PP2PPPP/RNBQKBNR w KQkq", "id": 72, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 b7b5"},
{"c": "A57", "n": "Benko Gambit Accepted", "f": "rnbqkb1r/3ppppp/p4n2/1PpP4/8/8/PP2PPPP/RNBQKBNR w KQkq", "id": 56, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6"},
{"c": "A57", "n": "Benko Gambit Accepted, Central Storming Variation", "f": "rn1qkb1r/3ppp1p/b4np1/2pP4/5P2/2N5/PP2P1PP/R1BQKBNR b KQkq", "id": 57, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 g7g6 b1c3 c8a6 f2f4"},
{"c": "A57", "n": "Benko Gambit Accepted, Dlugy Variation", "f": "rnbqkb1r/3ppppp/p4n2/1PpP4/8/5P2/PP2P1PP/RNBQKBNR b KQkq", "id": 58, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 f2f3"},
{"c": "A57", "n": "Benko Gambit Accepted, Modern Variation", "f": "rnbqkb1r/3ppppp/p4n2/1PpP4/8/4P3/PP3PPP/RNBQKBNR b KQkq", "id": 62, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 e2e3"},
{"c": "A57", "n": "Benko Gambit Accepted, Pawn Return Variation", "f": "rnbqkb1r/3ppppp/pP3n2/2pP4/8/8/PP2PPPP/RNBQKBNR b KQkq", "id": 63, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5b6"},
{"c": "A57", "n": "Benko Gambit Declined, Bishop Attack", "f": "rnbqkb1r/p2ppppp/5n2/1ppP2B1/2P5/8/PP2PPPP/RN1QKBNR b KQkq", "id": 66, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c1g5"},
{"c": "A57", "n": "Benko Gambit Declined, Hjoerring Countergambit", "f": "rnbqkb1r/p2ppppp/5n2/1ppP4/2P1P3/8/PP3PPP/RNBQKBNR b KQkq", "id": 67, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 e2e4"},
{"c": "A57", "n": "Benko Gambit Declined, Main Line", "f": "rnbqkb1r/p2ppppp/5n2/1ppP4/2P5/5N2/PP2PPPP/RNBQKB1R b KQkq", "id": 68, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 g1f3"},
{"c": "A57", "n": "Benko Gambit Declined, Pseudo-Sämisch", "f": "rnbqkb1r/p2ppppp/5n2/1ppP4/2P5/5P2/PP2P1PP/RNBQKBNR b KQkq", "id": 69, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 f2f3"},
{"c": "A57", "n": "Benko Gambit Declined, Quiet Line", "f": "rnbqkb1r/p2ppppp/5n2/1ppP4/2P5/8/PP1NPPPP/R1BQKBNR b KQkq", "id": 70, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 b1d2"},
{"c": "A57", "n": "Benko Gambit Declined, Sosonko Variation", "f": "rnbqkb1r/p2ppppp/5n2/1ppP4/P1P5/8/1P2PPPP/RNBQKBNR b KQkq", "id": 71, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 a2a4"},
{"c": "A57", "n": "Benko Gambit: Mutkin Countergambit", "f": "rnbqkb1r/p2ppppp/5n2/1ppP4/2P3P1/8/PP2PP1P/RNBQKBNR b KQkq", "id": 73, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 g2g4"},
{"c": "A57", "n": "Benko Gambit: Nescafe Frappe Attack", "f": "rnbqkb1r/4pppp/3p1n2/1NpP4/1pB1P3/8/PP3PPP/R1BQK1NR b KQkq", "id": 3013, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b1c3 a6b5 e2e4 b5b4 c3b5 d7d6 f1c4"},
{"c": "A57", "n": "Benko Gambit: Zaitsev Variation, Nescafe Frappe Attack", "f": "rnbqkb1r/3ppppp/5n2/1NpP4/1p2P3/8/PP3PPP/R1BQKBNR b KQkq", "id": 75, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b1c3 a6b5 e2e4 b5b4 c3b5"},
{"c": "A57", "n": "Benoni Defense: Hromádka System", "f": "rnbqkb1r/pp2pppp/3p1n2/2pP4/2P5/8/PP2PPPP/RNBQKBNR w KQkq", "id": 101, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 d7d6"},
{"c": "A58", "n": "Benko Gambit Accepted, Fianchetto Variation", "f": "rn1qk2r/4ppbp/b2p1np1/2pP4/8/2N2NP1/PP2PPBP/R1BQK2R b KQkq", "id": 59, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 g7g6 b1c3 c8a6 g2g3 d7d6 f1g2 f8g7 g1f3"},
{"c": "A58", "n": "Benko Gambit Accepted, Fully Accepted Variation", "f": "rnbqkb1r/3ppppp/P4n2/2pP4/8/8/PP2PPPP/RNBQKBNR b KQkq", "id": 60, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6"},
{"c": "A58", "n": "Benko Gambit: Fianchetto Variation", "f": "rn1qkb1r/4pp1p/b2p1np1/2pP4/8/2N2NP1/PP2PP1P/R1BQKB1R b KQkq", "id": 3015, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 c8a6 b1c3 d7d6 g1f3 g7g6 g2g3"},
{"c": "A58", "n": "Benko Gambit: Nd2 Variation", "f": "rn1qkb1r/4pp1p/b2p1np1/2pP4/8/2N5/PP1NPPPP/R1BQKB1R b KQkq", "id": 3014, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 c8a6 b1c3 d7d6 g1f3 g7g6 f3d2"},
{"c": "A58", "n": "Benko Gambit: Zaitsev System", "f": "rnbqkb1r/3ppppp/p4n2/1PpP4/8/2N5/PP2PPPP/R1BQKBNR b KQkq", "id": 74, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b1c3"},
{"c": "A59", "n": "Benko Gambit", "f": "rn1qkb1r/4pp1p/3p1np1/2pP4/4P3/2N3P1/PP3P1P/R1BQ1KNR b kq", "id": 3016, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 g7g6 b1c3 c8a6 e2e4 a6f1 e1f1 d7d6 g2g3"},
{"c": "A59", "n": "Benko Gambit Accepted, King Walk Variation", "f": "rn1q1rk1/4ppbp/3p1np1/2pP4/4P3/2N2NP1/PP3PKP/R1BQ3R b -", "id": 61, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 g7g6 b1c3 c8a6 g1f3 d7d6 e2e4 a6f1 e1f1 f8g7 g2g3 e8g8 f1g2"},
{"c": "A59", "n": "Benko Gambit Accepted, Yugoslav, with Bxf1 and Nge2", "f": "rn1qkb1r/4pp1p/3p1np1/2pP4/4P3/2N5/PP2NPPP/R1BQ1K1R b kq", "id": 64, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 g7g6 b1c3 c8a6 e2e4 a6f1 e1f1 d7d6 g1e2"},
{"c": "A59", "n": "Benko Gambit Accepted, Yugoslav, without 7... Bxf1", "f": "rn1qkb1r/4pppp/b2p1n2/2pP4/4P3/2N5/PP3PPP/R1BQKBNR b KQkq", "id": 65, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 c8a6 b1c3 d7d6 e2e4"},
{"c": "A60", "n": "Benoni Defense: Modern Variation", "f": "rnbqkb1r/pp1p1ppp/4pn2/2pP4/2P5/8/PP2PPPP/RNBQKBNR w KQkq", "id": 107, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 e7e6"},
{"c": "A60", "n": "Benoni Defense: Modern Variation, Snake Variation", "f": "rnbqk2r/pp1p1ppp/3b1n2/2pP4/8/2N5/PP2PPPP/R1BQKBNR w KQkq", "id": 109, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 f8d6"},
{"c": "A61", "n": "Benoni Defense", "f": "rnbqkb1r/pp3p1p/3p1np1/2pP4/8/2N2N2/PP2PPPP/R1BQKB1R w KQkq", "id": 3017, "m": "d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6"},
{"c": "A61", "n": "Benoni Defense: Fianchetto Variation", "f": "rnbqkb1r/pp3p1p/3p1np1/2pP4/8/2N2NP1/PP2PP1P/R1BQKB1R b KQkq", "id": 3018, "m": "d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 g2g3"},
{"c": "A61", "n": "Benoni Defense: Knight's Tour Variation", "f": "rnbqkb1r/pp3p1p/3p1np1/2pP4/8/2N5/PP1NPPPP/R1BQKB1R b KQkq", "id": 104, "m": "d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 f3d2"},
{"c": "A61", "n": "Benoni Defense: Uhlmann Variation", "f": "rnbqkb1r/pp3p1p/3p1np1/2pP2B1/8/2N2N2/PP2PPPP/R2QKB1R b KQkq", "id": 120, "m": "d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 c1g5"},
{"c": "A62", "n": "Benoni Defense: Fianchetto Variation", "f": "rnbq1rk1/pp3pbp/3p1np1/2pP4/8/2N2NP1/PP2PPBP/R1BQK2R w KQ", "id": 92, "m": "d2d4 g8f6 c2c4 e7e6 g2g3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 f1g2 f8g7 g1f3 e8g8"},
{"c": "A63", "n": "Benoni Defense: Fianchetto Variation, Hastings Defense", "f": "r1bq1rk1/pp1n1pbp/3p1np1/2pP4/8/2N2NP1/PP2PPBP/R1BQ1RK1 w -", "id": 93, "m": "d2d4 g8f6 c2c4 e7e6 g2g3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 f1g2 f8g7 g1f3 e8g8 e1g1 b8d7"},
{"c": "A64", "n": "Benoni Defense: Fianchetto Variation, Hastings Defense, Main Line", "f": "r1bqr1k1/1p1n1pbp/p2p1np1/2pP4/P7/2N3P1/1P1NPPBP/R1BQ1RK1 w -", "id": 94, "m": "d2d4 g8f6 c2c4 e7e6 g2g3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 f1g2 f8g7 g1f3 e8g8 e1g1 a7a6 a2a4 b8d7 f3d2 f8e8"},
{"c": "A65", "n": "Benoni Defense: King's Pawn Line", "f": "rnbqkb1r/pp3ppp/3p1n2/2pP4/4P3/2N5/PP3PPP/R1BQKBNR b KQkq", "id": 102, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4"},
{"c": "A66", "n": "Benoni Defense: Mikenas Variation", "f": "rnbqk2r/pp3pbp/3p1np1/2pPP3/5P2/2N5/PP4PP/R1BQKBNR b KQkq", "id": 105, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 f2f4 f8g7 e4e5"},
{"c": "A66", "n": "Benoni Defense: Pawn Storm Variation", "f": "rnbqkb1r/pp3p1p/3p1np1/2pP4/4PP2/2N5/PP4PP/R1BQKBNR b KQkq", "id": 116, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 f2f4"},
{"c": "A67", "n": "Benoni Defense: Taimanov Variation", "f": "rnbqk2r/pp3pbp/3p1np1/1BpP4/4PP2/2N5/PP4PP/R1BQK1NR b KQkq", "id": 119, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 f2f4 f8g7 f1b5"},
{"c": "A68", "n": "Benoni Defense: Four Pawns Attack", "f": "rnbq1rk1/pp3pbp/3p1np1/2pP4/4PP2/2N2N2/PP4PP/R1BQKB1R w KQ", "id": 95, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 f2f4 f8g7 g1f3 e8g8"},
{"c": "A69", "n": "Benoni Defense: Four Pawns Attack, Main Line", "f": "rnbqr1k1/pp3pbp/3p1np1/2pP4/4PP2/2N2N2/PP2B1PP/R1BQK2R w KQ", "id": 96, "m": "d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 e8g8 g1f3 c7c5 d4d5 e7e6 f1e2 e6d5 c4d5 f8e8"},
{"c": "A70", "n": "Benoni Defense: Classical Variation", "f": "rnbqkb1r/pp3p1p/3p1np1/2pP4/4P3/2N2N2/PP3PPP/R1BQKB1R b KQkq", "id": 83, "m": "d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4"},
{"c": "A70", "n": "Benoni Defense: Classical Variation, New York Variation", "f": "rnbqk2r/pp3pbp/3p1np1/2pP4/4P3/2N2N1P/PP3PP1/R1BQKB1R b KQkq", "id": 2850, "m": "d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 h2h3"},
{"c": "A71", "n": "Benoni Defense: Classical Variation, Averbakh-Grivas Attack", "f": "rnbqk2r/pp3pbp/3p1np1/2pP2B1/4P3/2N2N2/PP3PPP/R2QKB1R b KQkq", "id": 2838, "m": "d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 c1g5"},
{"c": "A72", "n": "Benoni Defense: Classical Variation, Traditional Variation", "f": "rnbqk2r/pp3pbp/3p1np1/2pP4/4P3/2N2N2/PP2BPPP/R1BQK2R b KQkq", "id": 2839, "m": "d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 f1e2"},
{"c": "A72", "n": "Benoni Defense: Classical, without 9. O-O", "f": "rnbq1rk1/pp3pbp/3p1np1/2pP4/4P3/2N2N2/PP2BPPP/R1BQK2R w KQ", "id": 3019, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8"},
{"c": "A73", "n": "Benoni Defense: Classical Variation, Main Line", "f": "rnbq1rk1/pp3pbp/3p1np1/2pP4/4P3/2N2N2/PP2BPPP/R1BQ1RK1 b -", "id": 89, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1"},
{"c": "A74", "n": "Benoni Defense: Classical Variation, Full Line", "f": "rnbq1rk1/1p3pbp/p2p1np1/2pP4/P3P3/2N2N2/1P2BPPP/R1BQ1RK1 b -", "id": 82, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 a7a6 a2a4"},
{"c": "A75", "n": "Benoni Defense: Classical Variation, Argentine Counterattack", "f": "rn1q1rk1/1p3pbp/p2p1np1/2pP4/P3P1b1/2N2N2/1P2BPPP/R1BQ1RK1 w -", "id": 84, "m": "d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 f1e2 e8g8 e1g1 a7a6 a2a4 c8g4"},
{"c": "A76", "n": "Benoni Defense: Classical Variation, Czerniak Defense", "f": "rnbqr1k1/pp3pbp/3p1np1/2pP4/4P3/2N2N2/PP2BPPP/R1BQ1RK1 w -", "id": 85, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 f8e8"},
{"c": "A77", "n": "Benoni Defense: Classical Variation, Czerniak Defense, Tal Line", "f": "rnbqr1k1/pp3pbp/3p1np1/2pP4/4P3/2N5/PP1NBPPP/R1BQ1RK1 b -", "id": 88, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 f8e8 f3d2"},
{"c": "A78", "n": "Benoni Defense: Classical Variation, Czerniak Defense", "f": "r1bqr1k1/pp3pbp/n2p1np1/2pP4/4P3/2N5/PP1NBPPP/R1BQ1RK1 w -", "id": 86, "m": "d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 f1e2 e8g8 e1g1 f8e8 f3d2 b8a6"},
{"c": "A79", "n": "Benoni Defense: Classical Variation, Czerniak Defense", "f": "r1bqr1k1/pp3pbp/n2p1np1/2pP4/4P3/2N2P2/PP1NB1PP/R1BQ1RK1 b -", "id": 87, "m": "d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 f8e8 f3d2 b8a6 f2f3"},
{"c": "A80", "n": "Dutch Defense", "f": "rnbqkbnr/ppppp1pp/8/5p2/3P4/8/PPP1PPPP/RNBQKBNR w KQkq", "id": 370, "m": "d2d4 f7f5"},
{"c": "A80", "n": "Dutch Defense: Alapin Variation", "f": "rnbqkbnr/ppppp1pp/8/5p2/3P4/3Q4/PPP1PPPP/RNB1KBNR b KQkq", "id": 376, "m": "d2d4 f7f5 d1d3"},
{"c": "A80", "n": "Dutch Defense: Blackmar's Second Gambit", "f": "rnbqkb1r/ppppp1pp/5n2/8/3Pp3/2N2P2/PPP3PP/R1BQKBNR b KQkq", "id": 361, "m": "d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 f2f3"},
{"c": "A80", "n": "Dutch Defense: Hevendehl Gambit", "f": "rnbqkbnr/pppp2pp/8/4pp2/3P2P1/8/PPP1PP1P/RNBQKBNR w KQkq", "id": 371, "m": "d2d4 f7f5 g2g4 e7e5"},
{"c": "A80", "n": "Dutch Defense: Hopton Attack", "f": "rnbqkbnr/ppppp1pp/8/5pB1/3P4/8/PPP1PPPP/RN1QKBNR b KQkq", "id": 372, "m": "d2d4 f7f5 c1g5"},
{"c": "A80", "n": "Dutch Defense: Janzen-Korchnoi Gambit", "f": "rnbqkb1r/ppppp1pp/5n2/5p2/3P2P1/7P/PPP1PP2/RNBQKBNR b KQkq", "id": 374, "m": "d2d4 f7f5 h2h3 g8f6 g2g4"},
{"c": "A80", "n": "Dutch Defense: Kingfisher Gambit", "f": "rnbqkbnr/ppp1p1pp/8/3p1p2/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq", "id": 375, "m": "d2d4 f7f5 b1c3 d7d5 e2e4"},
{"c": "A80", "n": "Dutch Defense: Korchnoi Attack", "f": "rnbqkbnr/ppppp1pp/8/5p2/3P4/7P/PPP1PPP1/RNBQKBNR b KQkq", "id": 377, "m": "d2d4 f7f5 h2h3"},
{"c": "A80", "n": "Dutch Defense: Krejcik Gambit", "f": "rnbqkbnr/ppppp1pp/8/5p2/3P2P1/8/PPP1PP1P/RNBQKBNR b KQkq", "id": 379, "m": "d2d4 f7f5 g2g4"},
{"c": "A80", "n": "Dutch Defense: Krejcik Gambit, Tate Gambit", "f": "rnbqkbnr/ppp1p1pp/8/3p4/3PP1p1/2N5/PPP2P1P/R1BQKBNR b KQkq", "id": 380, "m": "d2d4 f7f5 g2g4 f5g4 e2e4 d7d5 b1c3"},
{"c": "A80", "n": "Dutch Defense: Manhattan Gambit, Anti-Classical Line", "f": "rnbqkbnr/pppp2pp/4p3/5p2/3P2P1/3Q4/PPP1PP1P/RNB1KBNR b KQkq", "id": 386, "m": "d2d4 f7f5 d1d3 e7e6 g2g4"},
{"c": "A80", "n": "Dutch Defense: Manhattan Gambit, Anti-Leningrad", "f": "rnbqkbnr/ppppp2p/6p1/5p2/3P2P1/3Q4/PPP1PP1P/RNB1KBNR b KQkq", "id": 387, "m": "d2d4 f7f5 d1d3 g7g6 g2g4"},
{"c": "A80", "n": "Dutch Defense: Manhattan Gambit, Anti-Modern", "f": "rnbqkbnr/ppp1p1pp/3p4/5p2/3P2P1/3Q4/PPP1PP1P/RNB1KBNR b KQkq", "id": 388, "m": "d2d4 f7f5 d1d3 d7d6 g2g4"},
{"c": "A80", "n": "Dutch Defense: Manhattan Gambit, Anti-Stonewall", "f": "rnbqkbnr/ppp1p1pp/8/3p1p2/3P2P1/3Q4/PPP1PP1P/RNB1KBNR b KQkq", "id": 389, "m": "d2d4 f7f5 d1d3 d7d5 g2g4"},
{"c": "A80", "n": "Dutch Defense: Omega-Isis Gambit", "f": "rnbqkbnr/pppp2pp/8/4pp2/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq", "id": 2905, "m": "d2d4 f7f5 g1f3 e7e5"},
{"c": "A80", "n": "Dutch Defense: Raphael Variation", "f": "rnbqkbnr/ppppp1pp/8/5p2/3P4/2N5/PPP1PPPP/R1BQKBNR b KQkq", "id": 394, "m": "d2d4 f7f5 b1c3"},
{"c": "A80", "n": "Dutch Defense: Senechaud Gambit", "f": "rnbqkbnr/pppp2pp/4p3/5p2/3P1BP1/8/PPP1PP1P/RN1QKBNR b KQkq", "id": 397, "m": "d2d4 e7e6 c1f4 f7f5 g2g4"},
{"c": "A80", "n": "Dutch Defense: Spielmann Gambit", "f": "rnbqkb1r/ppppp1pp/5n2/5p2/3P2P1/2N5/PPP1PP1P/R1BQKBNR b KQkq", "id": 398, "m": "d2d4 f7f5 b1c3 g8f6 g2g4"},
{"c": "A80", "n": "Queen's Pawn Game: Veresov Attack, Dutch System", "f": "rnbqkbnr/ppp1p1pp/8/3p1p2/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq", "id": 1609, "m": "d2d4 f7f5 b1c3 d7d5"},
{"c": "A81", "n": "Dutch Defense: Blackburne Variation", "f": "rnbqkb1r/pppp2pp/4pn2/5p2/3P4/6PN/PPP1PPBP/RNBQK2R b KQkq", "id": 360, "m": "d2d4 f7f5 g2g3 g8f6 f1g2 e7e6 g1h3"},
{"c": "A81", "n": "Dutch Defense: Fianchetto Attack", "f": "rnbqkbnr/ppppp1pp/8/5p2/3P4/6P1/PPP1PP1P/RNBQKBNR b KQkq", "id": 368, "m": "d2d4 f7f5 g2g3"},
{"c": "A81", "n": "Dutch Defense: Leningrad Variation, Karlsbad Variation", "f": "rnbqk1nr/ppppp1bp/6p1/5p2/3P4/6PN/PPP1PPBP/RNBQK2R b KQkq", "id": 383, "m": "d2d4 f7f5 g2g3 g7g6 f1g2 f8g7 g1h3"},
{"c": "A81", "n": "Dutch Defense: Leningrad, Basman System", "f": "rnbqk2r/pp1pp1bp/2p3pn/5p2/3P4/5NP1/PPP1PPBP/RNBQ1RK1 w kq", "id": 3020, "m": "d2d4 f7f5 g2g3 c7c6 f1g2 g7g6 g1f3 f8g7 e1g1 g8h6"},
{"c": "A81", "n": "Dutch Defense: Semi-Leningrad Variation", "f": "rnbqkb1r/ppppp2p/5np1/5p2/3P4/6P1/PPP1PPBP/RNBQK1NR w KQkq", "id": 396, "m": "d2d4 f7f5 g2g3 g8f6 f1g2 g7g6"},
{"c": "A82", "n": "Dutch Defense: Staunton Gambit", "f": "rnbqkbnr/ppppp1pp/8/5p2/3PP3/8/PPP2PPP/RNBQKBNR b KQkq", "id": 3021, "m": "d2d4 f7f5 e2e4"},
{"c": "A82", "n": "Dutch Defense: Staunton Gambit Accepted", "f": "rnbqkbnr/ppppp1pp/8/8/3Pp3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 399, "m": "d2d4 f7f5 e2e4 f5e4"},
{"c": "A82", "n": "Dutch Defense: Staunton Gambit, American Attack", "f": "rnbqkbnr/ppppp1pp/8/8/3Pp3/8/PPPN1PPP/R1BQKBNR b KQkq", "id": 400, "m": "d2d4 f7f5 e2e4 f5e4 b1d2"},
{"c": "A82", "n": "Dutch Defense: Staunton Gambit, Tartakower Variation", "f": "rnbqkb1r/ppppp1pp/5n2/8/3Pp1P1/2N5/PPP2P1P/R1BQKBNR b KQkq", "id": 405, "m": "d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 g2g4"},
{"c": "A83", "n": "Dutch Defense: Staunton Gambit", "f": "rnbqkb1r/ppppp1pp/5n2/6B1/3Pp3/2N5/PPP2PPP/R2QKBNR b KQkq", "id": 403, "m": "d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5"},
{"c": "A83", "n": "Dutch Defense: Staunton Gambit, Alekhine Variation", "f": "rnbqkb1r/ppppp2p/5np1/6B1/3Pp2P/2N5/PPP2PP1/R2QKBNR b KQkq", "id": 3022, "m": "d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5 g7g6 h2h4"},
{"c": "A83", "n": "Dutch Defense: Staunton Gambit, Chigorin Variation", "f": "rnbqkb1r/pp1pp1pp/2p2n2/6B1/3Pp3/2N5/PPP2PPP/R2QKBNR w KQkq", "id": 402, "m": "d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5 c7c6"},
{"c": "A83", "n": "Dutch Defense: Staunton Gambit, Lasker Variation", "f": "rnbqkb1r/ppppp2p/5np1/6B1/3Pp3/2N2P2/PPP3PP/R2QKBNR b KQkq", "id": 404, "m": "d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5 g7g6 f2f3"},
{"c": "A83", "n": "Dutch Defense: Staunton Gambit, Nimzowitsch Variation", "f": "rnbqkb1r/p1ppp1pp/1p3n2/6B1/3Pp3/2N5/PPP2PPP/R2QKBNR w KQkq", "id": 3023, "m": "d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5 b7b6"},
{"c": "A84", "n": "Dutch Defense", "f": "rnbqkbnr/ppppp1pp/8/5p2/2PP4/8/PP2PPPP/RNBQKBNR b KQkq", "id": 3024, "m": "d2d4 f7f5 c2c4"},
{"c": "A84", "n": "Dutch Defense: Bladel Variation", "f": "rnbqkb1r/ppppp2p/6pn/5p2/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq", "id": 3025, "m": "d2d4 f7f5 c2c4 g7g6 b1c3 g8h6"},
{"c": "A84", "n": "Dutch Defense: Classical Variation", "f": "rnbqkbnr/pppp2pp/4p3/5p2/2PP4/8/PP2PPPP/RNBQKBNR w KQkq", "id": 362, "m": "d2d4 e7e6 c2c4 f7f5"},
{"c": "A84", "n": "Dutch Defense: Krause Variation", "f": "r1bqkb1r/ppp1p1pp/2np1n2/5p2/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq", "id": 378, "m": "c2c4 f7f5 b1c3 g8f6 g1f3 b8c6 d2d4 d7d6"},
{"c": "A84", "n": "Dutch Defense: Normal Variation", "f": "rnbqkb1r/ppppp1pp/5n2/5p2/2PP4/8/PP2PPPP/RNBQKBNR w KQkq", "id": 392, "m": "d2d4 f7f5 c2c4 g8f6"},
{"c": "A84", "n": "Dutch Defense: Rubinstein Variation", "f": "rnbqkbnr/pppp2pp/4p3/5p2/2PP4/2N5/PP2PPPP/R1BQKBNR b KQkq", "id": 395, "m": "d2d4 e7e6 c2c4 f7f5 b1c3"},
{"c": "A84", "n": "Horwitz Defense: Dutch Defense, Bellon Gambit", "f": "rnbqkbnr/pppp2pp/4p3/5p2/2PPP3/8/PP3PPP/RNBQKBNR b KQkq", "id": 801, "m": "d2d4 e7e6 c2c4 f7f5 e2e4"},
{"c": "A85", "n": "Dutch Defense: Queen's Knight Variation", "f": "rnbqkb1r/ppppp1pp/5n2/5p2/2PP4/2N5/PP2PPPP/R1BQKBNR b KQkq", "id": 393, "m": "d2d4 f7f5 c2c4 g8f6 b1c3"},
{"c": "A86", "n": "Dutch Defense: Fianchetto Variation", "f": "rnbqkb1r/ppppp1pp/5n2/5p2/2PP4/6P1/PP2PP1P/RNBQKBNR b KQkq", "id": 369, "m": "d2d4 f7f5 c2c4 g8f6 g2g3"},
{"c": "A86", "n": "Dutch Defense: Hort-Antoshin System", "f": "rnb1kb1r/ppq1p1pp/2pp1n2/5p2/2PP4/2N3P1/PP2PPBP/R1BQK1NR w KQkq", "id": 3026, "m": "c2c4 f7f5 g2g3 g8f6 f1g2 d7d6 b1c3 c7c6 d2d4 d8c7"},
{"c": "A86", "n": "Dutch Defense: Leningrad Variation", "f": "rnbqkb1r/ppppp2p/5np1/5p2/2PP4/6P1/PP2PP1P/RNBQKBNR w KQkq", "id": 381, "m": "d2d4 f7f5 c2c4 g8f6 g2g3 g7g6"},
{"c": "A87", "n": "Dutch Defense: Leningrad Variation", "f": "rnbqk2r/ppppp1bp/5np1/5p2/2PP4/5NP1/PP2PPBP/RNBQK2R b KQkq", "id": 382, "m": "d2d4 f7f5 c2c4 g8f6 g2g3 g7g6 f1g2 f8g7 g1f3"},
{"c": "A88", "n": "Dutch Defense: Leningrad Variation, Warsaw Variation", "f": "rnbq1rk1/pp2p1bp/2pp1np1/5p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w -", "id": 385, "m": "d2d4 f7f5 g2g3 g8f6 f1g2 g7g6 g1f3 f8g7 e1g1 e8g8 c2c4 d7d6 b1c3 c7c6"},
{"c": "A89", "n": "Dutch Defense: Leningrad Variation, Matulovic Variation", "f": "r1bq1rk1/ppp1p1bp/2np1np1/5p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w -", "id": 384, "m": "d2d4 f7f5 g2g3 g8f6 f1g2 g7g6 g1f3 f8g7 e1g1 e8g8 c2c4 d7d6 b1c3 b8c6"},
{"c": "A90", "n": "Dutch Defense: Classical Variation", "f": "rnbqkb1r/pppp2pp/4pn2/5p2/2PP4/6P1/PP2PPBP/RNBQK1NR b KQkq", "id": 364, "m": "d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2"},
{"c": "A90", "n": "Dutch Defense: Nimzo-Dutch Variation", "f": "rnbqk2r/pppp2pp/4pn2/5p2/1bPP4/6P1/PP2PPBP/RNBQK1NR w KQkq", "id": 391, "m": "d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8b4"},
{"c": "A90", "n": "Dutch Defense: Nimzo-Dutch Variation, Alekhine Variation", "f": "rnbqk2r/ppppb1pp/4pn2/5p2/2PP4/6P1/PP1BPPBP/RN1QK1NR w KQkq", "id": 358, "m": "d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8b4 c1d2 b4e7"},
{"c": "A90", "n": "Dutch Defense: Stonewall Variation, Modern Variation", "f": "rnbqk2r/pp4pp/2pbpn2/3p1p2/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w kq", "id": 410, "m": "d2d4 e7e6 g1f3 f7f5 g2g3 g8f6 f1g2 d7d5 e1g1 f8d6 c2c4 c7c6"},
{"c": "A91", "n": "Dutch Defense: Classical Variation", "f": "rnbqk2r/ppppb1pp/4pn2/5p2/2PP4/6P1/PP2PPBP/RNBQK1NR w KQkq", "id": 365, "m": "d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7"},
{"c": "A91", "n": "Dutch Defense: Classical Variation, Blackburne Attack", "f": "rnbqk2r/ppppb1pp/4pn2/5p2/2PP4/6PN/PP2PPBP/RNBQK2R b KQkq", "id": 2806, "m": "d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1h3"},
{"c": "A92", "n": "Dutch Defense: Alekhine Variation", "f": "rnbq1rk1/ppppb1pp/4p3/5p2/2PPn3/5NP1/PP2PPBP/RNBQ1RK1 w -", "id": 357, "m": "d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 e1g1 f6e4"},
{"c": "A92", "n": "Dutch Defense: Classical Variation", "f": "rnbq1rk1/ppppb1pp/4pn2/5p2/2PP4/5NP1/PP2PPBP/RNBQK2R w KQ", "id": 366, "m": "d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8"},
{"c": "A92", "n": "Dutch Defense: Stonewall Variation", "f": "rnbq1rk1/ppp1b1pp/4pn2/3p1p2/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w -", "id": 409, "m": "d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 d7d5 e1g1 e8g8"},
{"c": "A92", "n": "Dutch Defense: Stonewall, with Nc3", "f": "rnbq1rk1/ppp1b1pp/4pn2/3p1p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 b -", "id": 3027, "m": "d2d4 e7e6 g1f3 f7f5 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 c2c4 d7d5 b1c3"},
{"c": "A93", "n": "Dutch Defense: Classical Variation, Stonewall Variation, Botvinnik Variation", "f": "rnbq1rk1/ppp1b1pp/4pn2/3p1p2/2PP4/1P3NP1/P3PPBP/RNBQ1RK1 b -", "id": 408, "m": "d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 d7d5 e1g1 e8g8 b2b3"},
{"c": "A94", "n": "Dutch Defense: Classical Variation, Stonewall Variation", "f": "rnbq1rk1/pp2b1pp/2p1pn2/3p1p2/2PP4/BP3NP1/P3PPBP/RN1Q1RK1 b -", "id": 407, "m": "d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 d7d5 e1g1 e8g8 b2b3 c7c6 c1a3"},
{"c": "A95", "n": "Dutch Defense: Classical Variation, Stonewall Variation", "f": "rnbq1rk1/pp2b1pp/2p1pn2/3p1p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w -", "id": 406, "m": "d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 d7d5 g1f3 f8e7 e1g1 e8g8 b1c3 c7c6"},
{"c": "A95", "n": "Dutch Defense: Stonewall: Chekhover Variation", "f": "rnb1qrk1/pp2b1pp/2p1pn2/3p1pB1/2PP4/2N2NP1/PPQ1PPBP/R4RK1 b -", "id": 3028, "m": "d2d4 f7f5 c2c4 g8f6 g2g3 e7e6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d5 b1c3 c7c6 d1c2 d8e8 c1g5"},
{"c": "A96", "n": "Dutch Defense: Classical Variation", "f": "rnbq1rk1/ppp1b1pp/3ppn2/5p2/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w -", "id": 363, "m": "d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d6"},
{"c": "A96", "n": "Dutch Defense: Classical Variation, Buenos Aires Variation", "f": "rnbq1rk1/1pp1b1pp/3ppn2/p4p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w -", "id": 2832, "m": "d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d6 b1c3 a7a5"},
{"c": "A96", "n": "Dutch Defense: Classical Variation, Huisl Variation", "f": "rnbq1rk1/ppp1b1pp/3pp3/5p2/2PPn3/2N2NP1/PP2PPBP/R1BQ1RK1 w -", "id": 2833, "m": "d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d6 b1c3 f6e4"},
{"c": "A97", "n": "Dutch Defense: Classical Variation, Ilyin-Zhenevsky Variation", "f": "rnb1qrk1/ppp1b1pp/3ppn2/5p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w -", "id": 373, "m": "d2d4 f7f5 g1f3 g8f6 g2g3 e7e6 f1g2 f8e7 e1g1 e8g8 c2c4 d7d6 b1c3 d8e8"},
{"c": "A97", "n": "Dutch Defense: Ilyin-Zhenevsky, Winter Variation", "f": "rnb1qrk1/ppp1b1pp/3ppn2/5p2/2PP4/2N2NP1/PP2PPBP/R1BQR1K1 b -", "id": 3029, "m": "d2d4 f7f5 g1f3 g8f6 g2g3 e7e6 f1g2 f8e7 e1g1 e8g8 c2c4 d7d6 b1c3 d8e8 f1e1"},
{"c": "A98", "n": "Dutch Defense: Classical Variation, Ilyin-Zhenevsky Variation, Alatortsev-Lisitsyn Line", "f": "rnb1qrk1/ppp1b1pp/3ppn2/5p2/2PP4/2N2NP1/PPQ1PPBP/R1B2RK1 b -", "id": 2834, "m": "d2d4 f7f5 g1f3 g8f6 g2g3 e7e6 f1g2 f8e7 e1g1 e8g8 c2c4 d7d6 b1c3 d8e8 d1c2"},
{"c": "A99", "n": "Dutch Defense: Classical Variation, Ilyin-Zhenevsky Variation, Modern Main Line", "f": "rnb1qrk1/ppp1b1pp/3ppn2/5p2/2PP4/1PN2NP1/P3PPBP/R1BQ1RK1 b -", "id": 2835, "m": "d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d6 b1c3 d8e8 b2b3"},
{"c": "B00", "n": "Barnes Defense", "f": "rnbqkbnr/ppppp1pp/5p2/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq", "id": 3031, "m": "e2e4 f7f6"},
{"c": "B00", "n": "Borg Defense", "f": "rnbqkbnr/pppppp1p/8/6p1/4P3/8/PPPP1PPP/RNBQKBNR w KQkq", "id": 228, "m": "e2e4 g7g5"},
{"c": "B00", "n": "Borg Defense: Borg Gambit", "f": "rnbqk1nr/ppppppbp/8/6p1/3PP3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 2771, "m": "e2e4 g7g5 d2d4 f8g7"},
{"c": "B00", "n": "Borg Defense: Langhorst Gambit", "f": "rnbqkbnr/p2p1p1p/1p2p3/2P3p1/4P3/2P5/PP3PPP/RNBQKBNR w KQkq", "id": 229, "m": "e2e4 g7g5 d2d4 e7e6 c2c3 c7c5 d4c5 b7b6"},
{"c": "B00", "n": "Borg Defense: Troon Gambit", "f": "rnbqkbnr/pppppp2/7p/8/3PP1pP/8/PPP2PP1/RNBQKBNR w KQkq", "id": 230, "m": "e2e4 g7g5 d2d4 h7h6 h2h4 g5g4"},
{"c": "B00", "n": "Borg Opening: Zilbermints Gambit", "f": "rnbqkbnr/pppp1p1p/8/4p1p1/3PP3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 231, "m": "e2e4 g7g5 d2d4 e7e5"},
{"c": "B00", "n": "Caro-Kann Defense: Hillbilly Attack", "f": "rnbqkbnr/pp1ppppp/2p5/8/2B1P3/8/PPPP1PPP/RNBQK1NR b KQkq", "id": 278, "m": "e2e4 c7c6 f1c4"},
{"c": "B00", "n": "Carr Defense", "f": "rnbqkbnr/ppppppp1/7p/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq", "id": 315, "m": "e2e4 h7h6"},
{"c": "B00", "n": "Carr Defense: Zilbermints Gambit", "f": "rnbqkbnr/pppp1pp1/7p/4p3/3PP3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 316, "m": "e2e4 h7h6 d2d4 e7e5"},
{"c": "B00", "n": "Duras Gambit", "f": "rnbqkbnr/ppppp1pp/8/5p2/4P3/8/PPPP1PPP/RNBQKBNR w KQkq", "id": 353, "m": "e2e4 f7f5"},
{"c": "B00", "n": "Fried Fox Defense", "f": "rnbq1bnr/pppppkpp/5p2/8/3PP3/8/PPP2PPP/RNBQKBNR w KQ", "id": 3032, "m": "e2e4 f7f6 d2d4 e8f7"},
{"c": "B00", "n": "Goldsmith Defense", "f": "rnbqkbnr/ppppppp1/8/7p/4P3/8/PPPP1PPP/RNBQKBNR w KQkq", "id": 728, "m": "e2e4 h7h5"},
{"c": "B00", "n": "Goldsmith Defense: Picklepuss Defense", "f": "rnbqkb1r/ppppppp1/5n2/7p/3PP3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 729, "m": "e2e4 h7h5 d2d4 g8f6"},
{"c": "B00", "n": "Guatemala Defense", "f": "rn1qkbnr/p1pppppp/bp6/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 799, "m": "e2e4 b7b6 d2d4 c8a6"},
{"c": "B00", "n": "Hippopotamus Defense", "f": "rnbqkb1r/ppppp2p/5ppn/8/2PPP3/8/PP3PPP/RNBQKBNR w KQkq", "id": 3030, "m": "e2e4 g8h6 d2d4 g7g6 c2c4 f7f6"},
{"c": "B00", "n": "Hippopotamus Defense", "f": "rnbqkb1r/pppppppp/7n/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq", "id": 3447, "m": "e2e4 g8h6"},
{"c": "B00", "n": "King's Pawn", "f": "rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq", "id": 2984, "m": "e2e4"},
{"c": "B00", "n": "King's Pawn Game: Nimzowitsch Defense", "f": "r1bqkbnr/pppppppp/2n5/8/3PP3/8/PPP2PPP/RNBQKBNR b KQkq", "id": 3034, "m": "e2e4 b8c6 d2d4"},
{"c": "B00", "n": "King's Pawn Game: Nimzowitsch Defense: Wheeler Gambit", "f": "r1bqkbnr/pppppppp/2n5/8/3PP3/2P5/P4PPP/RNBQKBNR b KQkq", "id": 3033, "m": "e2e4 b8c6 b2b4 c6b4 c2c3 b4c6 d2d4"},
{"c": "B00", "n": "Lemming Defense", "f": "r1bqkbnr/pppppppp/n7/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq", "id": 1267, "m": "e2e4 b8a6"},
{"c": "B00", "n": "Nimzowitsch Defense", "f": "r1bqkbnr/pppppppp/2n5/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq", "id": 1436, "m": "e2e4 b8c6"},
{"c": "B00", "n": "Nimzowitsch Defense, Declined Variation", "f": "r1bqkbnr/pppppppp/2n5/8/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq", "id": 1429, "m": "e2e4 b8c6 g1f3"},
{"c": "B00", "n": "Nimzowitsch Defense: Breyer Variation", "f": "r1bqkb1r/pppp1ppp/2n2n2/4p3/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq", "id": 1425, "m": "e2e4 b8c6 b1c3 g8f6 d2d4 e7e5"},
{"c": "B00", "n": "Nimzowitsch Defense: El Columpio Defense", "f": "r1bqkb1r/pppppppp/2n5/4P3/6n1/5N2/PPPP1PPP/RNBQKB1R w KQkq", "id": 1430, "m": "e2e4 b8c6 g1f3 g8f6 e4e5 f6g4"},
{"c": "B00", "n": "Nimzowitsch Defense: El Columpio Defense, El Columpio Gambit", "f": "r1bqkb1r/ppp1pppp/2npP2n/8/3P4/5N1P/PPP2PP1/RNBQKB1R b KQkq", "id": 1431, "m": "e2e4 b8c6 g1f3 g8f6 e4e5 f6g4 d2d4 d7d6 h2h3 g4h6 e5e6"},
{"c": "B00", "n": "Nimzowitsch Defense: El Columpio Defense, Exchange Variation", "f": "r1bqkb1r/ppp1pppp/2nP3n/8/3P4/5N1P/PPP2PP1/RNBQKB1R b KQkq", "id": 1432, "m": "e2e4 b8c6 g1f3 g8f6 e4e5 f6g4 d2d4 d7d6 h2h3 g4h6 e5d6"},
{"c": "B00", "n": "Nimzowitsch Defense: El Columpio Defense, Pin Variation", "f": "r1bqkb1r/ppp1pppp/2np3n/1B2P3/3P4/5N1P/PPP2PP1/RNBQK2R b KQkq", "id": 1433, "m": "e2e4 b8c6 g1f3 g8f6 e4e5 f6g4 d2d4 d7d6 h2h3 g4h6 f1b5"},
{"c": "B00", "n": "Nimzowitsch Defense: Franco-Hiva Gambit", "f": "r1bqkb1r/pppp2pp/2n1pn2/5P2/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq", "id": 2761, "m": "e2e4 b8c6 d2d4 e7e6 g1f3 f7f5 e4f5 g8f6"},
{"c": "B00", "n": "Nimzowitsch Defense: Franco-Hiva Gambit", "f": "r1bqkb1r/pppp2pp/2n1pn2/5P2/3P4/2N5/PPP2PPP/R1BQKBNR w KQkq", "id": 2762, "m": "e2e4 b8c6 d2d4 e7e6 b1c3 f7f5 e4f5 g8f6"},
{"c": "B00", "n": "Nimzowitsch Defense: Franco-Nimzowitsch Variation", "f": "r1bqkbnr/pppp1ppp/2n1p3/8/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq", "id": 1434, "m": "e2e4 b8c6 g1f3 e7e6"},
{"c": "B00", "n": "Nimzowitsch Defense: French Connection", "f": "r1bqkbnr/pppp1ppp/2n1p3/8/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq", "id": 1435, "m": "e2e4 b8c6 b1c3 e7e6"},
{"c": "B00", "n": "Nimzowitsch Defense: Hornung Gambit", "f": "r1bqkbnr/ppp1pppp/2n5/3p4/3PP3/4B3/PPP2PPP/RN1QKBNR b KQkq", "id": 2759, "m": "e2e4 b8c6 d2d4 d7d5 c1e3"},
{"c": "B00", "n": "Nimzowitsch Defense: Kennedy Variation", "f": "r1bqkbnr/pppp1ppp/2n5/4p3/3PP3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 1437, "m": "e2e4 b8c6 d2d4 e7e5"},
{"c": "B00", "n": "Nimzowitsch Defense: Kennedy Variation, Bielefelder Gambit", "f": "r1bqk1nr/pppp1ppp/2n5/2b1P3/4P3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 1438, "m": "e2e4 b8c6 d2d4 e7e5 d4e5 f8c5"},
{"c": "B00", "n": "Nimzowitsch Defense: Kennedy Variation, Hammer Gambit", "f": "r1bqkbnr/pppp2pp/2n2p2/4P3/4P3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 1440, "m": "e2e4 b8c6 d2d4 e7e5 d4e5 f7f6"},
{"c": "B00", "n": "Nimzowitsch Defense: Kennedy Variation, Herford Gambit", "f": "r1b1kbnr/pppp1ppp/2n5/4P3/4P2q/8/PPP2PPP/RNBQKBNR w KQkq", "id": 1441, "m": "e2e4 b8c6 d2d4 e7e5 d4e5 d8h4"},
{"c": "B00", "n": "Nimzowitsch Defense: Kennedy Variation, Keres Attack", "f": "r1bqkbnr/pppp1ppp/8/4n3/4P3/2N5/PPP2PPP/R1BQKBNR b KQkq", "id": 1442, "m": "e2e4 b8c6 d2d4 e7e5 d4e5 c6e5 b1c3"},
{"c": "B00", "n": "Nimzowitsch Defense: Kennedy Variation, Linksspringer Variation", "f": "r1bqkbnr/pppp1ppp/2n5/3Pp3/4P3/8/PPP2PPP/RNBQKBNR b KQkq", "id": 1443, "m": "e2e4 b8c6 d2d4 e7e5 d4d5"},
{"c": "B00", "n": "Nimzowitsch Defense: Kennedy Variation, Main Line", "f": "r1bqkbnr/pppp1ppp/6n1/8/4PP2/8/PPP3PP/RNBQKBNR w KQkq", "id": 1444, "m": "e2e4 b8c6 d2d4 e7e5 d4e5 c6e5 f2f4 e5g6"},
{"c": "B00", "n": "Nimzowitsch Defense: Kennedy Variation, Paulsen Attack", "f": "r1bqkbnr/pppp1ppp/8/4n3/4P3/5N2/PPP2PPP/RNBQKB1R b KQkq", "id": 1445, "m": "e2e4 b8c6 d2d4 e7e5 d4e5 c6e5 g1f3"},
{"c": "B00", "n": "Nimzowitsch Defense: Kennedy Variation, Riemann Defense", "f": "r1bqkbnr/pppp1ppp/2n5/8/4PP2/8/PPP3PP/RNBQKBNR w KQkq", "id": 1446, "m": "e2e4 b8c6 d2d4 e7e5 d4e5 c6e5 f2f4 e5c6"},
{"c": "B00", "n": "Nimzowitsch Defense: Kennedy Variation, de Smet Gambit", "f": "r1bqkbnr/ppp2ppp/2np4/4P3/4P3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 1439, "m": "e2e4 b8c6 d2d4 e7e5 d4e5 d7d6"},
{"c": "B00", "n": "Nimzowitsch Defense: Lean Variation", "f": "r1bqkbnr/ppppp1pp/2n5/5p2/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq", "id": 1447, "m": "e2e4 b8c6 g1f3 f7f5"},
{"c": "B00", "n": "Nimzowitsch Defense: Lean Variation, Colorado Counter Accepted", "f": "r1bqkbnr/ppppp1pp/2n5/5P2/8/5N2/PPPP1PPP/RNBQKB1R b KQkq", "id": 1448, "m": "e2e4 b8c6 g1f3 f7f5 e4f5"},
{"c": "B00", "n": "Nimzowitsch Defense: Mikenas Variation", "f": "r1bqkbnr/ppp1pppp/2np4/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 1449, "m": "e2e4 b8c6 d2d4 d7d6"},
{"c": "B00", "n": "Nimzowitsch Defense: Neo-Mongoloid Defense", "f": "r1bqkbnr/ppppp1pp/2n2p2/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 1451, "m": "e2e4 b8c6 d2d4 f7f6"},
{"c": "B00", "n": "Nimzowitsch Defense: Pirc Connection", "f": "r1bqkbnr/pppppp1p/2n3p1/8/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq", "id": 1452, "m": "e2e4 b8c6 b1c3 g7g6"},
{"c": "B00", "n": "Nimzowitsch Defense: Pseudo-Spanish Variation", "f": "r1bqkbnr/pppppppp/2n5/1B6/4P3/8/PPPP1PPP/RNBQK1NR b KQkq", "id": 1453, "m": "e2e4 b8c6 f1b5"},
{"c": "B00", "n": "Nimzowitsch Defense: Scandinavian Variation", "f": "r1bqkbnr/ppp1pppp/2n5/3p4/3PP3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 1454, "m": "e2e4 b8c6 d2d4 d7d5"},
{"c": "B00", "n": "Nimzowitsch Defense: Scandinavian Variation, Aachen Gambit", "f": "r1bqkbnr/ppp1pppp/8/3P4/1n1P4/8/PPP2PPP/RNBQKBNR w KQkq", "id": 1455, "m": "e2e4 b8c6 d2d4 d7d5 e4d5 c6b4"},
{"c": "B00", "n": "Nimzowitsch Defense: Scandinavian Variation, Advance Variation", "f": "r1bqkbnr/ppp1pppp/2n5/3pP3/3P4/8/PPP2PPP/RNBQKBNR b KQkq", "id": 1456, "m": "e2e4 b8c6 d2d4 d7d5 e4e5"},
{"c": "B00", "n": "Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation", "f": "r1bqkbnr/ppp1pppp/2n5/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq", "id": 1457, "m": "e2e4 b8c6 d2d4 d7d5 b1c3"},
{"c": "B00", "n": "Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Brandics Gambit", "f": "r1bqkbnr/1pp1pppp/p1n5/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq", "id": 1458, "m": "e2e4 b8c6 d2d4 d7d5 b1c3 a7a6"},
{"c": "B00", "n": "Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Erben Gambit", "f": "r1bqkbnr/ppp1pp1p/2n3p1/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq", "id": 1459, "m": "e2e4 b8c6 d2d4 d7d5 b1c3 g7g6"},
{"c": "B00", "n": "Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Heinola-Deppe Gambit", "f": "r1bqkbnr/ppp2ppp/2n5/3pp3/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq", "id": 1460, "m": "e2e4 b8c6 d2d4 d7d5 b1c3 e7e5"},
{"c": "B00", "n": "Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Nimzowitsch Gambit", "f": "r1bqkbnr/ppp1pppp/8/3Pn3/4p3/2N5/PPP2PPP/R1BQKBNR w KQkq", "id": 1461, "m": "e2e4 b8c6 d2d4 d7d5 b1c3 d5e4 d4d5 c6e5"},
{"c": "B00", "n": "Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Richter Gambit", "f": "rnbqkbnr/ppp1pppp/8/3P4/4p3/2N2P2/PPP3PP/R1BQKBNR b KQkq", "id": 1462, "m": "e2e4 b8c6 d2d4 d7d5 b1c3 d5e4 d4d5 c6b8 f2f3"},
{"c": "B00", "n": "Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Vehre Variation", "f": "r1bqkb1r/ppp1pppp/2n2n2/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq", "id": 1463, "m": "e2e4 b8c6 d2d4 d7d5 b1c3 g8f6"},
{"c": "B00", "n": "Nimzowitsch Defense: Scandinavian Variation, Exchange Variation", "f": "r1b1kbnr/ppp1pppp/2n5/3q4/3P4/8/PPP2PPP/RNBQKBNR w KQkq", "id": 1464, "m": "e2e4 b8c6 d2d4 d7d5 e4d5 d8d5"},
{"c": "B00", "n": "Nimzowitsch Defense: Scandinavian Variation, Exchange Variation, Marshall Gambit", "f": "r1b1kbnr/ppp1pppp/2n5/3q4/3P4/2N5/PPP2PPP/R1BQKBNR b KQkq", "id": 1465, "m": "e2e4 b8c6 d2d4 d7d5 e4d5 d8d5 b1c3"},
{"c": "B00", "n": "Nimzowitsch Defense: Wheeler Gambit", "f": "r1bqkbnr/pppppppp/2n5/8/1P2P3/8/P1PP1PPP/RNBQKBNR b KQkq", "id": 1466, "m": "e2e4 b8c6 b2b4"},
{"c": "B00", "n": "Nimzowitsch Defense: Williams Variation", "f": "r1bqkbnr/ppp1pppp/2np4/8/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq", "id": 1467, "m": "e2e4 b8c6 g1f3 d7d6"},
{"c": "B00", "n": "Nimzowitsch Defense: Woodchuck Variation", "f": "r1bqkbnr/1ppppppp/p1n5/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 2885, "m": "e2e4 b8c6 d2d4 a7a6"},
{"c": "B00", "n": "Owen Defense", "f": "rnbqkbnr/p1pppppp/1p6/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq", "id": 1477, "m": "e2e4 b7b6"},
{"c": "B00", "n": "Owen Defense: Hekili-Loa Gambit", "f": "r1bqkbnr/p2ppppp/1pn5/2P5/4P3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 1478, "m": "e2e4 b7b6 d2d4 c7c5 d4c5 b8c6"},
{"c": "B00", "n": "Owen Defense: Matovinsky Gambit", "f": "rn1qkbnr/p1ppp2p/1p4p1/5P1Q/3P4/3B4/PPP2PbP/RNB1K1NR w KQkq", "id": 1479, "m": "e2e4 b7b6 d2d4 c8b7 f1d3 f7f5 e4f5 b7g2 d1h5 g7g6"},
{"c": "B00", "n": "Owen Defense: Naselwaus Gambit", "f": "rn1qkbnr/pbpppppp/1p6/6B1/3PP3/8/PPP2PPP/RN1QKBNR b KQkq", "id": 1480, "m": "e2e4 b7b6 d2d4 c8b7 c1g5"},
{"c": "B00", "n": "Owen Defense: Smith Gambit", "f": "rn1qkbnr/pbpppppp/1p6/8/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq", "id": 1481, "m": "e2e4 b7b6 d2d4 c8b7 g1f3"},
{"c": "B00", "n": "Owen Defense: Unicorn Variation", "f": "rn1qkbnr/pbppp1pp/1p3p2/8/2PPP3/8/PP3PPP/RNBQKBNR w KQkq", "id": 2976, "m": "e2e4 f7f6 d2d4 b7b6 c2c4 c8b7"},
{"c": "B00", "n": "Owen Defense: Wind Gambit", "f": "rn1qkbnr/pbpp1ppp/1p6/4p3/3PP3/5P2/PPP3PP/RNBQKBNR w KQkq", "id": 1482, "m": "e2e4 b7b6 d2d4 c8b7 f2f3 e7e5"},
{"c": "B00", "n": "St. George Defense", "f": "rnbqkbnr/1ppppppp/p7/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq", "id": 2527, "m": "e2e4 a7a6"},
{"c": "B00", "n": "St. George Defense: New St. George, Sanky-George Gambit", "f": "rnbqkbnr/2pp1ppp/p3p3/1p6/2PPP3/8/PP3PPP/RNBQKBNR w KQkq", "id": 2710, "m": "e2e4 e7e6 d2d4 a7a6 c2c4 b7b5"},
{"c": "B00", "n": "St. George Defense: New St. George, Three Pawn Attack", "f": "rnbqkbnr/1ppp1ppp/p3p3/8/2PPP3/8/PP3PPP/RNBQKBNR b KQkq", "id": 2531, "m": "e2e4 e7e6 d2d4 a7a6 c2c4"},
{"c": "B00", "n": "St. George Defense: New St. George, Traditional Line", "f": "rn1qkb1r/1b1p1ppp/p3pn2/1pp5/3PP3/2PB1N2/PP3PPP/RNBQ1RK1 w kq", "id": 2532, "m": "e2e4 e7e6 d2d4 a7a6 g1f3 b7b5 f1d3 c7c5 c2c3 c8b7 e1g1 g8f6"},
{"c": "B00", "n": "St. George Defense: Polish Variation", "f": "rn1qkbnr/1bpp1ppp/p3p3/1p6/3PP3/3B1N2/PPP2PPP/RNBQK2R w KQkq", "id": 2528, "m": "d2d4 b7b5 e2e4 a7a6 g1f3 c8b7 f1d3 e7e6"},
{"c": "B00", "n": "St. George Defense: San Jorge Variation", "f": "rn1qk1nr/1bp1ppbp/p2p2p1/1p6/3PP3/2PB1N2/PP3PPP/RNBQ1RK1 w kq", "id": 2529, "m": "e2e4 a7a6 d2d4 b7b5 g1f3 c8b7 f1d3 d7d6 e1g1 g7g6 c2c3 f8g7"},
{"c": "B00", "n": "St. George Defense: Zilbermints Gambit", "f": "rnbqkbnr/1ppp1ppp/p7/4p3/3PP3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 2534, "m": "e2e4 a7a6 d2d4 e7e5"},
{"c": "B00", "n": "Ware Defense", "f": "rnbqkbnr/1ppppppp/8/p7/4P3/8/PPPP1PPP/RNBQKBNR w KQkq", "id": 2677, "m": "e2e4 a7a5"},
{"c": "B01", "n": "Scandinavian Defense", "f": "rnbqkbnr/ppp1pppp/8/3p4/4P3/8/PPPP1PPP/RNBQKBNR w KQkq", "id": 1898, "m": "e2e4 d7d5"},
{"c": "B01", "n": "Scandinavian Defense: 2. b3", "f": "rnbqkbnr/ppp1pppp/8/3p4/4P3/1P6/P1PP1PPP/RNBQKBNR b KQkq", "id": 2904, "m": "e2e4 d7d5 b2b3"},
{"c": "B01", "n": "Scandinavian Defense: Anderssen Counterattack", "f": "rnb1kbnr/ppp2ppp/8/q3p3/3P4/2N5/PPP2PPP/R1BQKBNR w KQkq", "id": 1891, "m": "e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 e7e5"},
{"c": "B01", "n": "Scandinavian Defense: Anderssen Counterattack, Collijn Variation", "f": "rn2kbnr/ppp2ppp/8/q3p3/3P2b1/2N2N2/PPP2PPP/R1BQKB1R w KQkq", "id": 1892, "m": "e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 e7e5 g1f3 c8g4"},
{"c": "B01", "n": "Scandinavian Defense: Anderssen Counterattack, Goteborg System", "f": "rnb1kbnr/ppp2ppp/8/q3p3/3P4/2N2N2/PPP2PPP/R1BQKB1R b KQkq", "id": 3036, "m": "e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 e7e5 g1f3"},
{"c": "B01", "n": "Scandinavian Defense: Anderssen Counterattack, Orthodox Attack", "f": "r1b1k1nr/ppp2ppp/2n5/q3P3/1b6/2N2N2/PPPB1PPP/R2QKB1R b KQkq", "id": 3035, "m": "e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 e7e5 d4e5 b8c6 g1f3 f8b4 c1d2"},
{"c": "B01", "n": "Scandinavian Defense: Blackburne Gambit", "f": "r1bqkbnr/pp2pppp/2n5/8/8/8/PPPP1PPP/RNBQKBNR w KQkq", "id": 1893, "m": "e2e4 d7d5 e4d5 c7c6 d5c6 b8c6"},
{"c": "B01", "n": "Scandinavian Defense: Blackburne-Kloosterboer Gambit", "f": "rnbqkbnr/pp2pppp/2p5/3P4/8/8/PPPP1PPP/RNBQKBNR w KQkq", "id": 1894, "m": "e2e4 d7d5 e4d5 c7c6"},
{"c": "B01", "n": "Scandinavian Defense: Boehnke Gambit", "f": "rn1qkbnr/ppp2ppp/4b3/8/8/8/PPPP1PPP/RNBQKBNR w KQkq", "id": 1895, "m": "e2e4 d7d5 e4d5 e7e5 d5e6 c8e6"},
{"c": "B01", "n": "Scandinavian Defense: Bronstein Variation", "f": "rnb1kb1r/1pp1pppp/p2q1n2/8/3P4/2N2N2/PPP2PPP/R1BQKB1R w KQkq", "id": 1896, "m": "e2e4 d7d5 e4d5 d8d5 b1c3 d5d6 d2d4 g8f6 g1f3 a7a6"},
{"c": "B01", "n": "Scandinavian Defense: Classical Variation", "f": "rn2kb1r/ppp1pppp/5n2/q4b2/3P4/2N2N2/PPP2PPP/R1BQKB1R w KQkq", "id": 1897, "m": "e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 g8f6 g1f3 c8f5"},
{"c": "B01", "n": "Scandinavian Defense: Grünfeld Variation", "f": "rn2kb1r/pp2pppp/2p2n2/q3Nb2/3P2P1/2N5/PPP2P1P/R1BQKB1R b KQkq", "id": 1899, "m": "e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 g8f6 g1f3 c8f5 f3e5 c7c6 g2g4"},
{"c": "B01", "n": "Scandinavian Defense: Gubinsky-Melts Defense", "f": "rnb1kbnr/ppp1pppp/3q4/8/8/2N5/PPPP1PPP/R1BQKBNR w KQkq", "id": 1900, "m": "e2e4 d7d5 e4d5 d8d5 b1c3 d5d6"},
{"c": "B01", "n": "Scandinavian Defense: Icelandic-Palme Gambit", "f": "rnbqkb1r/ppp2ppp/4pn2/3P4/2P5/8/PP1P1PPP/RNBQKBNR w KQkq", "id": 1901, "m": "e2e4 d7d5 e4d5 g8f6 c2c4 e7e6"},
{"c": "B01", "n": "Scandinavian Defense: Kadas Gambit", "f": "rnbqkb1r/pp3ppp/2P2n2/4p3/3P4/8/PPP2PPP/RNBQKBNR w KQkq", "id": 1902, "m": "e2e4 d7d5 e4d5 g8f6 d2d4 c7c6 d5c6 e7e5"},
{"c": "B01", "n": "Scandinavian Defense: Kiel Variation", "f": "rnbqkb1r/ppp1pppp/8/8/1nPP4/8/PP3PPP/RNBQKBNR w KQkq", "id": 1903, "m": "e2e4 d7d5 e4d5 g8f6 d2d4 f6d5 c2c4 d5b4"},
{"c": "B01", "n": "Scandinavian Defense: Kloosterboer Gambit", "f": "rnbqkbnr/pp3ppp/2P5/4p3/8/8/PPPP1PPP/RNBQKBNR w KQkq", "id": 1905, "m": "e2e4 d7d5 e4d5 c7c6 d5c6 e7e5"},
{"c": "B01", "n": "Scandinavian Defense: Lasker Variation", "f": "rn2kb1r/ppp1pppp/5n2/q7/3P2b1/2N2N1P/PPP2PP1/R1BQKB1R b KQkq", "id": 1906, "m": "e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 g8f6 g1f3 c8g4 h2h3"},
{"c": "B01", "n": "Scandinavian Defense: Main Line", "f": "rnb1kbnr/ppp1pppp/8/q7/8/2N5/PPPP1PPP/R1BQKBNR w KQkq", "id": 1907, "m": "e2e4 d7d5 e4d5 d8d5 b1c3 d5a5"},
{"c": "B01", "n": "Scandinavian Defense: Main Line, Leonhardt Gambit", "f": "rnb1kbnr/ppp1pppp/8/q7/1P6/2N5/P1PP1PPP/R1BQKBNR b KQkq", "id": 1908, "m": "e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 b2b4"},
{"c": "B01", "n": "Scandinavian Defense: Main Line, Mieses Variation", "f": "rnb1kb1r/ppp1pppp/5n2/q7/3P4/2N5/PPP2PPP/R1BQKBNR w KQkq", "id": 1909, "m": "e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 g8f6"},
{"c": "B01", "n": "Scandinavian Defense: Marshall Variation", "f": "rnbqkb1r/ppp1pppp/8/3n4/3P4/8/PPP2PPP/RNBQKBNR w KQkq", "id": 1910, "m": "e2e4 d7d5 e4d5 g8f6 d2d4 f6d5"},
{"c": "B01", "n": "Scandinavian Defense: Mieses-Kotroc Variation", "f": "rnb1kbnr/ppp1pppp/8/3q4/8/8/PPPP1PPP/RNBQKBNR w KQkq", "id": 1911, "m": "e2e4 d7d5 e4d5 d8d5"},
{"c": "B01", "n": "Scandinavian Defense: Modern Variation", "f": "rnbqkb1r/ppp1pppp/5n2/3P4/3P4/8/PPP2PPP/RNBQKBNR b KQkq", "id": 1912, "m": "e2e4 d7d5 e4d5 g8f6 d2d4"},
{"c": "B01", "n": "Scandinavian Defense: Modern Variation", "f": "rnbqkb1r/ppp1pppp/5n2/3P4/8/8/PPPP1PPP/RNBQKBNR w KQkq", "id": 1913, "m": "e2e4 d7d5 e4d5 g8f6"},
{"c": "B01", "n": "Scandinavian Defense: Modern Variation, Gipslis Variation", "f": "rn1qkb1r/ppp1pppp/8/3n4/3P2b1/5N2/PPP2PPP/RNBQKB1R w KQkq", "id": 1914, "m": "e2e4 d7d5 e4d5 g8f6 d2d4 f6d5 g1f3 c8g4"},
{"c": "B01", "n": "Scandinavian Defense: Modern Variation, Wing Gambit", "f": "rnbqkb1r/p1p1pp1p/5np1/1p1P4/2PP4/8/PP3PPP/RNBQKBNR w KQkq", "id": 2750, "m": "e2e4 d7d5 e4d5 g8f6 d2d4 g7g6 c2c4 b7b5"},
{"c": "B01", "n": "Scandinavian Defense: Panov Transfer", "f": "rnbqkb1r/pp2pppp/2p2n2/3P4/2P5/8/PP1P1PPP/RNBQKBNR w KQkq", "id": 1916, "m": "e2e4 d7d5 e4d5 g8f6 c2c4 c7c6"},
{"c": "B01", "n": "Scandinavian Defense: Portuguese Variation", "f": "rn1qkb1r/ppp1pppp/5n2/3P4/3P2b1/8/PPP2PPP/RNBQKBNR w KQkq", "id": 1917, "m": "e2e4 d7d5 e4d5 g8f6 d2d4 c8g4"},
{"c": "B01", "n": "Scandinavian Defense: Portuguese Variation, Portuguese Gambit", "f": "r2qkb1r/pppnpppp/5n2/1B1P1b2/3P4/5P2/PPP3PP/RNBQK1NR w KQkq", "id": 1918, "m": "e2e4 d7d5 e4d5 g8f6 d2d4 c8g4 f1b5 b8d7 f2f3 g4f5"},
{"c": "B01", "n": "Scandinavian Defense: Richter Variation", "f": "rnbqkb1r/ppp1pp1p/6p1/3n4/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq", "id": 1919, "m": "e2e4 d7d5 e4d5 g8f6 d2d4 f6d5 g1f3 g7g6"},
{"c": "B01", "n": "Scandinavian Defense: Richter Variation", "f": "rnbqkb1r/ppp1pp1p/5np1/3P4/3P4/8/PPP2PPP/RNBQKBNR w KQkq", "id": 3037, "m": "e2e4 d7d5 e4d5 g8f6 d2d4 g7g6"},
{"c": "B01", "n": "Scandinavian Defense: Schiller-Pytel Variation", "f": "rnb1kbnr/pp2pppp/2pq4/8/3P4/2N5/PPP2PPP/R1BQKBNR w KQkq", "id": 1920, "m": "e2e4 d7d5 e4d5 d8d5 b1c3 d5d6 d2d4 c7c6"},
{"c": "B01", "n": "Scandinavian Defense: Schiller-Pytel Variation, Modern Variation", "f": "rn2kb1r/pp2pppp/2p2n2/5b2/1qBP1B2/2N5/PPP1NPPP/R2QK2R w KQkq", "id": 1921, "m": "e2e4 d7d5 e4d5 d8d5 b1c3 d5d6 d2d4 g8f6 f1c4 c7c6 g1e2 c8f5 c1f4 d6b4"},
{"c": "B01", "n": "Scandinavian Defense: Zilbermints Gambit", "f": "rnbqkbnr/ppp1pppp/8/3p4/1P2P3/8/P1PP1PPP/RNBQKBNR b KQkq", "id": 1922, "m": "e2e4 d7d5 b2b4"},
{"c": "B02", "n": "Alekhine Defense", "f": "rnbqkb1r/pppppppp/5n2/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq", "id": 13, "m": "e2e4 g8f6"},
{"c": "B02", "n": "Alekhine Defense: Brooklyn Variation", "f": "rnbqkbnr/pppppppp/8/4P3/8/8/PPPP1PPP/RNBQKBNR w KQkq", "id": 2, "m": "e2e4 g8f6 e4e5 f6g8"},
{"c": "B02", "n": "Alekhine Defense: Brooklyn Variation, Everglades Variation", "f": "rnbqkbnr/ppppp1pp/8/4Pp2/3P4/8/PPP2PPP/RNBQKBNR w KQkq", "id": 2804, "m": "e2e4 g8f6 e4e5 f6g8 d2d4 f7f5"},
{"c": "B02", "n": "Alekhine Defense: Hunt Variation, Lasker Simul Gambit", "f": "rnbqkb1r/pppp1ppp/4p3/2PnP3/2B5/2N5/PP1P1PPP/R1BQK1NR b KQkq", "id": 15, "m": "e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 c4c5 b6d5 f1c4 e7e6 b1c3"},
{"c": "B02", "n": "Alekhine Defense: Hunt Variation, Matsukevich Gambit", "f": "rnbqkb1r/ppp1pppp/3p4/2P1P1B1/8/2P5/PP3PPP/R2QKBNR b KQkq", "id": 16, "m": "e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 c4c5 b6d5 b1c3 d5c3 d2c3 d7d6 c1g5"},
{"c": "B02", "n": "Alekhine Defense: Hunt Variation, Mikenas Gambit", "f": "rnbqkb1r/ppp2ppp/3p4/2PBP3/8/8/PP1P1PPP/R1BQK1NR b KQkq", "id": 17, "m": "e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 c4c5 b6d5 f1c4 e7e6 b1c3 d7d6 c3d5 e6d5 c4d5"},
{"c": "B02", "n": "Alekhine Defense: Kmoch Variation", "f": "rnbqkb1r/pp1ppppp/1n6/2p1P3/8/1B1P4/PPP2PPP/RNBQK1NR b KQkq", "id": 19, "m": "e2e4 g8f6 e4e5 f6d5 f1c4 d5b6 c4b3 c7c5 d2d3"},
{"c": "B02", "n": "Alekhine Defense: Krejcik Variation", "f": "rnbqkb1r/pppppppp/5n2/8/2B1P3/8/PPPP1PPP/RNBQK1NR b KQkq", "id": 3038, "m": "e2e4 g8f6 f1c4"},
{"c": "B02", "n": "Alekhine Defense: Krejcik Variation, Krejcik Gambit", "f": "rnbqkb1r/pppppBpp/8/8/4n3/8/PPPP1PPP/RNBQK1NR b KQkq", "id": 20, "m": "e2e4 g8f6 f1c4 f6e4 c4f7"},
{"c": "B02", "n": "Alekhine Defense: Maróczy Variation", "f": "rnbqkb1r/pppppppp/5n2/8/4P3/3P4/PPP2PPP/RNBQKBNR b KQkq", "id": 21, "m": "e2e4 g8f6 d2d3"},
{"c": "B02", "n": "Alekhine Defense: Mokele Mbembe", "f": "rnbqkb1r/pppppppp/8/4P3/4n3/8/PPPP1PPP/RNBQKBNR w KQkq", "id": 31, "m": "e2e4 g8f6 e4e5 f6e4"},
{"c": "B02", "n": "Alekhine Defense: Mokele Mbembe, Modern Line", "f": "rnbqkb1r/ppppp1pp/5p2/4P3/3Pn3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 32, "m": "e2e4 g8f6 e4e5 f6e4 d2d4 f7f6"},
{"c": "B02", "n": "Alekhine Defense: Mokele Mbembe, Vavra Defense", "f": "rnbqkb1r/pppp1ppp/4p3/4P3/3Pn3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 2867, "m": "e2e4 g8f6 e4e5 f6e4 d2d4 e7e6"},
{"c": "B02", "n": "Alekhine Defense: Normal Variation", "f": "rnbqkb1r/pppppppp/8/3nP3/8/8/PPPP1PPP/RNBQKBNR w KQkq", "id": 34, "m": "e2e4 g8f6 e4e5 f6d5"},
{"c": "B02", "n": "Alekhine Defense: Sämisch Attack", "f": "rnbqkb1r/pppppppp/8/3nP3/8/2N5/PPPP1PPP/R1BQKBNR b KQkq", "id": 36, "m": "e2e4 g8f6 e4e5 f6d5 b1c3"},
{"c": "B02", "n": "Alekhine Defense: Scandinavian Variation", "f": "rnbqkb1r/ppp1pppp/5n2/3p4/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq", "id": 37, "m": "e2e4 g8f6 b1c3 d7d5"},
{"c": "B02", "n": "Alekhine Defense: Scandinavian Variation, Geschev Gambit", "f": "rnbqkb1r/pp2pppp/2p2n2/3P4/8/2N5/PPPP1PPP/R1BQKBNR w KQkq", "id": 38, "m": "e2e4 g8f6 b1c3 d7d5 e4d5 c7c6"},
{"c": "B02", "n": "Alekhine Defense: Scandinavian Variation, Myers Gambit", "f": "rnbqkb1r/ppp1pppp/5n2/6B1/4p3/2NP4/PPP2PPP/R2QKBNR b KQkq", "id": 39, "m": "e2e4 g8f6 b1c3 d7d5 d2d3 d5e4 c1g5"},
{"c": "B02", "n": "Alekhine Defense: Spielmann Gambit", "f": "rnbqkb1r/pppnpppp/4P3/3p4/8/2N5/PPPP1PPP/R1BQKBNR b KQkq", "id": 40, "m": "e2e4 g8f6 b1c3 d7d5 e4e5 f6d7 e5e6"},
{"c": "B02", "n": "Alekhine Defense: Steiner Variation", "f": "rnbqkb1r/pppppppp/1n6/4P3/2P5/1P6/P2P1PPP/RNBQKBNR b KQkq", "id": 41, "m": "e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 b2b3"},
{"c": "B02", "n": "Alekhine Defense: The Squirrel", "f": "rnbqkb1r/pppppppp/8/4P3/2P2n2/8/PP1P1PPP/RNBQKBNR w KQkq", "id": 2906, "m": "e2e4 g8f6 e4e5 f6d5 c2c4 d5f4"},
{"c": "B02", "n": "Alekhine Defense: Two Pawn Attack", "f": "rnbqkb1r/pppppppp/8/3nP3/2P5/8/PP1P1PPP/RNBQKBNR b KQkq", "id": 42, "m": "e2e4 g8f6 e4e5 f6d5 c2c4"},
{"c": "B02", "n": "Alekhine Defense: Two Pawn Attack, Lasker Variation", "f": "rnbqkb1r/pppppppp/1n6/2P1P3/8/8/PP1P1PPP/RNBQKBNR b KQkq", "id": 43, "m": "e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 c4c5"},
{"c": "B02", "n": "Alekhine Defense: Two Pawns Attack, Mikenas Variation", "f": "rnbqkb1r/ppp2ppp/3pp3/2PnP3/2B5/2N5/PP1P1PPP/R1BQK1NR w KQkq", "id": 3039, "m": "e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 c4c5 b6d5 f1c4 e7e6 b1c3 d7d6"},
{"c": "B02", "n": "Alekhine Defense: Welling Variation", "f": "rnbqkb1r/pppppppp/8/3nP3/8/1P6/P1PP1PPP/RNBQKBNR b KQkq", "id": 44, "m": "e2e4 g8f6 e4e5 f6d5 b2b3"},
{"c": "B02", "n": "Zaire Defense", "f": "rnbqkbnr/pppppppp/8/3PP3/8/8/PPP2PPP/RNBQKBNR w KQkq", "id": 2683, "m": "d2d4 b8c6 d4d5 c6b8 e2e4 g8f6 e4e5 f6g8"},
{"c": "B03", "n": "Alekhine Defense", "f": "rnbqkb1r/ppp1pppp/3p4/3nP3/3P4/8/PPP2PPP/RNBQKBNR w KQkq", "id": 35, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 d7d6"},
{"c": "B03", "n": "Alekhine Defense", "f": "rnbqkb1r/pppppppp/8/3nP3/3P4/8/PPP2PPP/RNBQKBNR b KQkq", "id": 3040, "m": "e2e4 g8f6 e4e5 f6d5 d2d4"},
{"c": "B03", "n": "Alekhine Defense", "f": "rnbqkb1r/ppp1pppp/3p4/3nP3/2PP4/8/PP3PPP/RNBQKBNR b KQkq", "id": 3042, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4"},
{"c": "B03", "n": "Alekhine Defense: Balogh Variation", "f": "rnbqkb1r/ppp1pppp/3p4/3nP3/2BP4/8/PPP2PPP/RNBQK1NR b KQkq", "id": 1, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 f1c4"},
{"c": "B03", "n": "Alekhine Defense: Buckley Attack", "f": "rnbqkb1r/pppppppp/8/3nP3/8/N7/PPPP1PPP/R1BQKBNR b KQkq", "id": 3, "m": "e2e4 g8f6 e4e5 f6d5 b1a3"},
{"c": "B03", "n": "Alekhine Defense: Exchange Variation", "f": "rnbqkb1r/ppp1pppp/1n1P4/8/2PP4/8/PP3PPP/RNBQKBNR b KQkq", "id": 4, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 e5d6"},
{"c": "B03", "n": "Alekhine Defense: Exchange Variation, Karpov Variation", "f": "r2q1rk1/pp2ppbp/1nnp2p1/5b2/2PP1B2/2N2N1P/PP2BPP1/R2Q1RK1 b -", "id": 5, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 e5d6 c7d6 b1c3 g7g6 h2h3 f8g7 g1f3 e8g8 f1e2 b8c6 e1g1 c8f5 c1f4"},
{"c": "B03", "n": "Alekhine Defense: Four Pawns Attack", "f": "rnbqkb1r/ppp1pppp/1n1p4/4P3/2PP1P2/8/PP4PP/RNBQKBNR b KQkq", "id": 6, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4"},
{"c": "B03", "n": "Alekhine Defense: Four Pawns Attack, 6... Nc6", "f": "r1bqkb1r/ppp1pppp/1nn5/4P3/2PP4/8/PP4PP/RNBQKBNR w KQkq", "id": 3044, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 d6e5 f4e5 b8c6"},
{"c": "B03", "n": "Alekhine Defense: Four Pawns Attack, Cambridge Gambit", "f": "rnbqkb1r/ppp1pp1p/1n1p4/4P1p1/2PP1P2/8/PP4PP/RNBQKBNR w KQkq", "id": 7, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 g7g5"},
{"c": "B03", "n": "Alekhine Defense: Four Pawns Attack, Fianchetto Variation", "f": "rnbqkb1r/ppp1pp1p/1n1p2p1/4P3/2PP1P2/8/PP4PP/RNBQKBNR w KQkq", "id": 8, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 g7g6"},
{"c": "B03", "n": "Alekhine Defense: Four Pawns Attack, Ilyin-Zhenevsky Variation", "f": "r2qkb1r/ppp1p1pp/1nn1p3/2P5/3P2b1/5N2/PP4PP/RNBQKB1R b KQkq", "id": 3045, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 d6e5 f4e5 b8c6 g1f3 c8g4 e5e6 f7e6 c4c5"},
{"c": "B03", "n": "Alekhine Defense: Four Pawns Attack, Korchnoi Variation", "f": "rn1q1rk1/ppp1b1pp/1n2pp2/4Pb2/2PP4/2N2N2/PP2B1PP/R1BQ1RK1 w -", "id": 3043, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 d6e5 f4e5 c8f5 b1c3 e7e6 g1f3 f8e7 f1e2 e8g8 e1g1 f7f6"},
{"c": "B03", "n": "Alekhine Defense: Four Pawns Attack, Main Line", "f": "r1bqkb1r/ppp1pppp/1nn5/4P3/2PP4/4B3/PP4PP/RN1QKBNR b KQkq", "id": 9, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 d6e5 f4e5 b8c6 c1e3"},
{"c": "B03", "n": "Alekhine Defense: Four Pawns Attack, Tartakower Variation", "f": "2kr3r/pppqbppp/1nn1p3/4Pb2/2PP4/2N1BN2/PP2B1PP/R2Q1RK1 w -", "id": 3046, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 d6e5 f4e5 b8c6 c1e3 c8f5 b1c3 e7e6 g1f3 d8d7 f1e2 e8c8 e1g1 f8e7"},
{"c": "B03", "n": "Alekhine Defense: Four Pawns Attack, Trifunovic Variation", "f": "rn1qkb1r/ppp1pppp/1n1p4/4Pb2/2PP1P2/8/PP4PP/RNBQKBNR w KQkq", "id": 11, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 c8f5"},
{"c": "B03", "n": "Alekhine Defense: Hunt Variation", "f": "rnbqkb1r/ppp1pppp/1n1p4/2P1P3/3P4/8/PP3PPP/RNBQKBNR b KQkq", "id": 14, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 c4c5"},
{"c": "B03", "n": "Alekhine Defense: O'Sullivan Gambit", "f": "rnbqkb1r/p1pppppp/8/1p1nP3/3P4/8/PPP2PPP/RNBQKBNR w KQkq", "id": 3041, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 b7b5"},
{"c": "B04", "n": "Alekhine Defense: Modern Variation", "f": "rnbqkb1r/ppp1pppp/3p4/3nP3/3P4/5N2/PPP2PPP/RNBQKB1R b KQkq", "id": 22, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3"},
{"c": "B04", "n": "Alekhine Defense: Modern Variation, Alburt Variation", "f": "rnbqkb1r/ppp1pp1p/3p2p1/3nP3/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq", "id": 23, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 g7g6"},
{"c": "B04", "n": "Alekhine Defense: Modern Variation, Alekhine Gambit", "f": "rn1qkb1r/ppp1pppp/1n1p4/4P3/2PP2b1/5N2/PP2BPPP/RNBQK2R b KQkq", "id": 24, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 g1f3 c8g4 f1e2"},
{"c": "B04", "n": "Alekhine Defense: Modern Variation, Keres Variation", "f": "rnbqk2r/ppp1ppbp/1n1p2p1/4P3/P2P4/1B3N2/1PP2PPP/RNBQK2R b KQkq", "id": 26, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 g7g6 f1c4 d5b6 c4b3 f8g7 a2a4"},
{"c": "B04", "n": "Alekhine Defense: Modern Variation, Larsen Variation", "f": "rnbqkb1r/ppp1pppp/8/3np3/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq", "id": 27, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 d6e5"},
{"c": "B04", "n": "Alekhine Defense: Modern Variation, Larsen-Haakert Variation", "f": "r1bqkb1r/ppp1pppp/2np4/3nP3/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq", "id": 2855, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 b8c6"},
{"c": "B04", "n": "Alekhine Defense: Modern Variation, Schmid Variation", "f": "rnbqkb1r/ppp1pppp/1n1p4/4P3/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq", "id": 30, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 d5b6"},
{"c": "B05", "n": "Alekhine Defense: Modern Variation, Alekhine Variation", "f": "rn1qkb1r/ppp1pppp/3p4/3nP3/2PP2b1/5N2/PP3PPP/RNBQKB1R b KQkq", "id": 25, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4 c2c4"},
{"c": "B05", "n": "Alekhine Defense: Modern Variation, Main Line", "f": "rn1qkb1r/ppp1pppp/3p4/3nP3/3P2b1/5N2/PPP2PPP/RNBQKB1R w KQkq", "id": 28, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4"},
{"c": "B05", "n": "Alekhine Defense: Modern Variation, Panov Variation", "f": "rn1qkb1r/ppp1pppp/3p4/3nP3/3P2b1/5N1P/PPP2PP1/RNBQKB1R b KQkq", "id": 29, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4 h2h3"},
{"c": "B05", "n": "Alekhine Defense: Modern, Flohr Variation", "f": "rn1qkb1r/pp2pppp/2pp4/3nP3/3P2b1/5N2/PPP1BPPP/RNBQK2R w KQkq", "id": 3047, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4 f1e2 c7c6"},
{"c": "B05", "n": "Alekhine Defense: Modern, Vitolins Attack", "f": "rn1qkb1r/ppp1pppp/1n1p4/3PP3/2P3b1/5N2/PP3PPP/RNBQKB1R b KQkq", "id": 3048, "m": "e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4 c2c4 d5b6 d4d5"},
{"c": "B06", "n": "Modern Defense", "f": "rnbqkbnr/pppppp1p/6p1/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq", "id": 1298, "m": "e2e4 g7g6"},
{"c": "B06", "n": "Modern Defense: Anti-Modern", "f": "rnbqk1nr/pp2ppbp/2pp2p1/8/2BPP3/2N5/PPP1QPPP/R1B1K1NR b KQkq", "id": 1284, "m": "e2e4 g7g6 d2d4 f8g7 b1c3 c7c6 f1c4 d7d6 d1e2"},
{"c": "B06", "n": "Modern Defense: Bishop Attack", "f": "rnbqk1nr/ppppppbp/6p1/8/2BPP3/8/PPP2PPP/RNBQK1NR b KQkq", "id": 1290, "m": "e2e4 g7g6 d2d4 f8g7 f1c4"},
{"c": "B06", "n": "Modern Defense: Bishop Attack, Buecker Gambit", "f": "rnbqk1nr/p1ppppbp/6p1/1p6/2BPP3/8/PPP2PPP/RNBQK1NR w KQkq", "id": 1291, "m": "e2e4 g7g6 d2d4 f8g7 f1c4 b7b5"},
{"c": "B06", "n": "Modern Defense: Bishop Attack, Monkey's Bum", "f": "rnbqk1nr/pppp1p1p/4p1p1/8/2BbP3/5Q2/PPP2PPP/RNB1K1NR w KQkq", "id": 2963, "m": "e2e4 g7g6 f1c4 f8g7 d1f3 e7e6 d2d4 g7d4"},
{"c": "B06", "n": "Modern Defense: Fianchetto Gambit", "f": "rnbqkbnr/ppppp2p/6p1/5p2/3PP3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 1293, "m": "e2e4 g7g6 d2d4 f7f5"},
{"c": "B06", "n": "Modern Defense: Geller's System", "f": "rnbqk1nr/ppp1ppbp/3p2p1/8/3PP3/2P2N2/PP3PPP/RNBQKB1R b KQkq", "id": 1294, "m": "e2e4 g7g6 d2d4 f8g7 g1f3 d7d6 c2c3"},
{"c": "B06", "n": "Modern Defense: Gurgenidze Defense", "f": "rnbqk1nr/pp2ppb1/2p3p1/3pP2p/3P1P2/2N5/PPP3PP/R1BQKBNR w KQkq", "id": 1296, "m": "e2e4 g7g6 d2d4 f8g7 b1c3 c7c6 f2f4 d7d5 e4e5 h7h5"},
{"c": "B06", "n": "Modern Defense: Lizard Defense, Mittenberger Gambit", "f": "rnbqk1nr/ppp1ppbp/6p1/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq", "id": 1300, "m": "e2e4 g7g6 d2d4 f8g7 b1c3 d7d5"},
{"c": "B06", "n": "Modern Defense: Masur Gambit", "f": "rnbq1rk1/ppppp2p/6pb/5P2/3P4/2N5/PPP2PPP/R2QKBNR w KQ", "id": 1302, "m": "e2e4 g7g6 d2d4 g8h6 b1c3 f7f5 c1h6 f8h6 e4f5 e8g8"},
{"c": "B06", "n": "Modern Defense: Modern Pterodactyl", "f": "rnbqk1nr/pp1pppbp/6p1/2p5/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq", "id": 1303, "m": "e2e4 g7g6 d2d4 f8g7 b1c3 c7c5"},
{"c": "B06", "n": "Modern Defense: Mongredien Defense", "f": "rnbqk1nr/p1ppppbp/1p4p1/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq", "id": 1304, "m": "e2e4 g7g6 d2d4 f8g7 b1c3 b7b6"},
{"c": "B06", "n": "Modern Defense: Mongredien Defense", "f": "rnbqk1nr/p1ppppbp/1p4p1/8/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq", "id": 1305, "m": "e2e4 g7g6 d2d4 f8g7 g1f3 b7b6"},
{"c": "B06", "n": "Modern Defense: Norwegian Defense", "f": "rnbqkb1r/pppppp1p/5np1/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 1307, "m": "e2e4 g7g6 d2d4 g8f6"},
{"c": "B06", "n": "Modern Defense: Norwegian Defense, Norwegian Gambit", "f": "rnbqkb1r/ppp1pp1p/3p2p1/4P2n/3P4/8/PPP1BPPP/RNBQK1NR w KQkq", "id": 1308, "m": "e2e4 g7g6 d2d4 g8f6 e4e5 f6h5 f1e2 d7d6"},
{"c": "B06", "n": "Modern Defense: Pseudo-Austrian Attack", "f": "rnbqk1nr/ppp1ppbp/3p2p1/8/3PPP2/2N5/PPP3PP/R1BQKBNR b KQkq", "id": 1309, "m": "e2e4 g7g6 d2d4 f8g7 b1c3 d7d6 f2f4"},
{"c": "B06", "n": "Modern Defense: Pterodactyl Variation", "f": "rnb1k1nr/pp1pppbp/6p1/q1p5/3PP3/2N2N2/PPP2PPP/R1BQKB1R w KQkq", "id": 1310, "m": "e2e4 c7c5 g1f3 g7g6 d2d4 f8g7 b1c3 d8a5"},
{"c": "B06", "n": "Modern Defense: Standard Defense", "f": "rnbqk1nr/ppp1ppbp/3p2p1/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq", "id": 1318, "m": "e2e4 g7g6 d2d4 f8g7 b1c3 d7d6"},
{"c": "B06", "n": "Modern Defense: Standard Line", "f": "rnbqk1nr/ppppppbp/6p1/8/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq", "id": 1319, "m": "e2e4 g7g6 d2d4 f8g7 b1c3"},
{"c": "B06", "n": "Modern Defense: Three Pawns Attack", "f": "rnbqk1nr/ppppppbp/6p1/8/3PPP2/8/PPP3PP/RNBQKBNR b KQkq", "id": 1320, "m": "e2e4 g7g6 d2d4 f8g7 f2f4"},
{"c": "B06", "n": "Modern Defense: Two Knights Variation", "f": "rnbqk1nr/ppp1ppbp/3p2p1/8/3PP3/2N2N2/PPP2PPP/R1BQKB1R b KQkq", "id": 1321, "m": "e2e4 g7g6 d2d4 f8g7 b1c3 d7d6 g1f3"},
{"c": "B06", "n": "Modern Defense: Two Knights Variation, Suttles Variation", "f": "rnbqk1nr/pp2ppbp/2pp2p1/8/3PP3/2N2N2/PPP2PPP/R1BQKB1R w KQkq", "id": 1322, "m": "e2e4 g7g6 d2d4 f8g7 b1c3 c7c6 g1f3 d7d6"},
{"c": "B06", "n": "Modern Defense: Two Knights Variation, Suttles Variation, Tal Gambit", "f": "rnb1k1nr/pp2ppbp/2pp2p1/6B1/3PP3/2N2N2/PqPQ1PPP/R3KB1R w KQkq", "id": 1323, "m": "e2e4 g7g6 d2d4 f8g7 b1c3 d7d6 g1f3 c7c6 c1g5 d8b6 d1d2 b6b2"},
{"c": "B06", "n": "Modern Defense: Westermann Gambit", "f": "rnbqk1nr/ppppppbp/6p1/8/3PP3/8/PPPB1PPP/RN1QKBNR b KQkq", "id": 2724, "m": "e2e4 g7g6 d2d4 f8g7 c1d2"},
{"c": "B06", "n": "Modern Defense: Wind Gambit", "f": "rnbqk1nr/ppppppbp/6p1/8/3PP3/3B4/PPP2PPP/RNBQK1NR b KQkq", "id": 1324, "m": "e2e4 g7g6 d2d4 f8g7 f1d3"},
{"c": "B06", "n": "Norwegian Defense", "f": "rnbqkb1r/ppppppnp/6p1/4P3/3P2P1/8/PPP2P1P/RNBQKBNR w KQkq", "id": 3049, "m": "e2e4 g7g6 d2d4 g8f6 e4e5 f6h5 g2g4 h5g7"},
{"c": "B06", "n": "Pterodactyl Defense: Austrian, Austriadactylus Western", "f": "rnb1k1nr/pp1pppbp/6p1/q1p5/3PPP2/5N2/PPP3PP/RNBQKB1R w KQkq", "id": 731, "m": "e2e4 g7g6 d2d4 f8g7 f2f4 c7c5 g1f3 d8a5"},
{"c": "B06", "n": "Pterodactyl Defense: Austrian, Grand Prix Pterodactyl", "f": "rnb1k1nr/pp1pppbp/6p1/q1p5/4PP2/2N2N2/PPPP2PP/R1BQKB1R w KQkq", "id": 745, "m": "e2e4 g7g6 b1c3 f8g7 f2f4 c7c5 g1f3 d8a5"},
{"c": "B06", "n": "Pterodactyl Defense: Austrian, Pteranodon", "f": "rnb1k1nr/pp1pppbp/6p1/q1p5/3PPP2/2P5/PP4PP/RNBQKBNR w KQkq", "id": 2814, "m": "e2e4 g7g6 d2d4 f8g7 f2f4 c7c5 c2c3 d8a5"},
{"c": "B06", "n": "Pterodactyl Defense: Central, Anhanguera", "f": "rnb1k1nr/pp2ppbp/3p2p1/q1p5/2PPP3/2N1B3/PP3PPP/R2QKBNR w KQkq", "id": 1299, "m": "e2e4 g7g6 d2d4 f8g7 c2c4 c7c5 b1c3 d7d6 c1e3 d8a5"},
{"c": "B06", "n": "Pterodactyl Defense: Central, Benoni Beefeater Pterodactyl", "f": "rnb1k1nr/pp2pp1p/3p2p1/q1pP4/2P1P3/2P5/P4PPP/R1BQKBNR w KQkq", "id": 463, "m": "d2d4 g7g6 c2c4 f8g7 b1c3 c7c5 d4d5 d7d6 e2e4 g7c3 b2c3 d8a5"},
{"c": "B06", "n": "Pterodactyl Defense: Central, Benoni Pterodactyl", "f": "rnb1k1nr/pp1pppbp/6p1/q1pP4/2P1P3/8/PP3PPP/RNBQKBNR w KQkq", "id": 459, "m": "d2d4 g7g6 c2c4 f8g7 e2e4 c7c5 d4d5 d8a5"},
{"c": "B06", "n": "Pterodactyl Defense: Central, Benoni Quetzalcoatlus", "f": "rnb1k1nr/pp2ppbp/3p2p1/q1pP4/2P1P3/2N5/PP3PPP/R1BQKBNR w KQkq", "id": 460, "m": "e2e4 g7g6 d2d4 f8g7 c2c4 c7c5 d4d5 d7d6 b1c3 d8a5"},
{"c": "B06", "n": "Pterodactyl Defense: Central, Bogolubovia", "f": "rnb1k1nr/pp2ppbp/3p2p1/q1p5/2PPP3/2N5/PP2NPPP/R1BQKB1R w KQkq", "id": 667, "m": "d2d4 g7g6 c2c4 f8g7 e2e4 d7d6 b1c3 c7c5 g1e2 d8a5"},
{"c": "B06", "n": "Pterodactyl Defense: Central, Quetzalcoatlus Gambit", "f": "rnb1k1nr/pp2ppbp/3p2p1/q1P5/2P1P3/2N5/PP3PPP/R1BQKBNR w KQkq", "id": 559, "m": "e2e4 g7g6 d2d4 f8g7 c2c4 c7c5 b1c3 d7d6 d4c5 d8a5"},
{"c": "B06", "n": "Pterodactyl Defense: Eastern, Anhanguera", "f": "rnbqk1nr/pp1pppbp/6p1/2p5/3PP3/2N1B3/PPP2PPP/R2QKBNR b KQkq", "id": 118, "m": "e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 c1e3"},
{"c": "B06", "n": "Pterodactyl Defense: Eastern, Benoni", "f": "rnbqk1nr/pp1pppbp/6p1/2pP4/4P3/2N5/PPP2PPP/R1BQKBNR b KQkq", "id": 146, "m": "d2d4 g7g6 e2e4 f8g7 b1c3 c7c5 d4d5"},
{"c": "B06", "n": "Pterodactyl Defense: Eastern, Benoni Pteranodon", "f": "rnb1k1nr/pp1ppp1p/6p1/q1pP4/4P3/2P5/P1P2PPP/R1BQKBNR w KQkq", "id": 352, "m": "e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 d4d5 g7c3 b2c3 d8a5"},
{"c": "B06", "n": "Pterodactyl Defense: Eastern, Benoni Pterodactyl", "f": "rnb1k1nr/pp1pppbp/6p1/q1pP4/4P3/2N5/PPP2PPP/R1BQKBNR w KQkq", "id": 270, "m": "d2d4 g7g6 b1c3 f8g7 e2e4 c7c5 d4d5 d8a5"},
{"c": "B06", "n": "Pterodactyl Defense: Eastern, Pteranodon", "f": "rnb1k1nr/pp1ppp1p/6p1/q1P5/4P3/2P5/P1P2PPP/R1BQKBNR w KQkq", "id": 144, "m": "e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 d4c5 g7c3 b2c3 d8a5"},
{"c": "B06", "n": "Pterodactyl Defense: Eastern, Pterodactyl", "f": "rnb1k1nr/pp1pppbp/6p1/q1P5/4P3/2N5/PPP2PPP/R1BQKBNR w KQkq", "id": 139, "m": "e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 d4c5 d8a5"},
{"c": "B06", "n": "Pterodactyl Defense: Eastern, Rhamphorhynchus", "f": "rnbqk1nr/pp1pppbp/6p1/2P5/4P3/2N5/PPP2PPP/R1BQKBNR b KQkq", "id": 110, "m": "e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 d4c5"},
{"c": "B06", "n": "Pterodactyl Defense: Fianchetto, King Pterodactyl", "f": "rnb1k1nr/pp1pppbp/6p1/q1p5/3PP3/5NP1/PPP2P1P/RNBQKB1R w KQkq", "id": 966, "m": "e2e4 g7g6 d2d4 f8g7 g2g3 c7c5 g1f3 d8a5"},
{"c": "B06", "n": "Pterodactyl Defense: Fianchetto, Rhamphorhynchus", "f": "rnb1k1nr/pp1pppbp/6p1/q1P5/4P3/6P1/PPP2P1P/RNBQKBNR w KQkq", "id": 818, "m": "e2e4 g7g6 d2d4 f8g7 g2g3 c7c5 d4c5 d8a5"},
{"c": "B06", "n": "Pterodactyl Defense: Sicilian, Anhanguera", "f": "rnb1k1nr/pp1pppbp/6p1/q1p5/3PP3/2N1BN2/PPP2PPP/R2QKB1R b KQkq", "id": 12, "m": "e2e4 c7c5 g1f3 g7g6 d2d4 f8g7 b1c3 d8a5 c1e3"},
{"c": "B06", "n": "Pterodactyl Defense: Sicilian, Benoni Gambit", "f": "rnb1k1nr/pp1pppbp/6p1/q1pP4/4P3/2N2N2/PPP2PPP/R1BQKB1R b KQkq", "id": 136, "m": "e2e4 c7c5 g1f3 g7g6 d2d4 f8g7 b1c3 d8a5 d4d5"},
{"c": "B06", "n": "Pterodactyl Defense: Sicilian, Pteranodon", "f": "rnb1k1nr/pp1ppp1p/6p1/q1P5/4P3/2P2N2/P1P2PPP/R1BQKB1R b KQkq", "id": 2813, "m": "e2e4 c7c5 g1f3 g7g6 d2d4 f8g7 d4c5 d8a5 b1c3 g7c3 b2c3"},
{"c": "B06", "n": "Pterodactyl Defense: Sicilian, Quetzalcoatlus", "f": "rnb1k1nr/pp2ppbp/3p2p1/q1p5/3PP3/2N2N2/PPP1BPPP/R1BQK2R w KQkq", "id": 33, "m": "e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 g1f3 d8a5 f1e2 d7d6"},
{"c": "B06", "n": "Pterodactyl Defense: Sicilian, Rhamporhynchus", "f": "rnb1k1nr/pp1pppbp/6p1/q1P5/4P3/2N2N2/PPP2PPP/R1BQKB1R b KQkq", "id": 10, "m": "e2e4 c7c5 g1f3 g7g6 d2d4 f8g7 d4c5 d8a5 b1c3"},
{"c": "B06", "n": "Pterodactyl Defense: Sicilian, Siroccopteryx", "f": "rnb1k1nr/pp1pppbp/6p1/q1p5/2BPP3/2N2N2/PPP2PPP/R1BQK2R b KQkq", "id": 48, "m": "e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 g1f3 d8a5 f1c4"},
{"c": "B06", "n": "Pterodactyl Defense: Sicilian, Unpin", "f": "rnb1k1nr/pp1pppbp/6p1/q1p5/3PP3/2N2N2/PPPB1PPP/R2QKB1R b KQkq", "id": 76, "m": "e2e4 c7c5 g1f3 g7g6 d2d4 f8g7 b1c3 d8a5 c1d2"},
{"c": "B06", "n": "Pterodactyl Defense: Western, Anhanguera", "f": "rnb1k1nr/pp1pppbp/6p1/q1p5/3PP3/4BN2/PPP2PPP/RN1QKB1R w KQkq", "id": 355, "m": "e2e4 g7g6 d2d4 f8g7 g1f3 c7c5 c1e3 d8a5"},
{"c": "B06", "n": "Pterodactyl Defense: Western, Pterodactyl", "f": "rnb1k1nr/pp1pppbp/6p1/q1p5/3PP3/2P2N2/PP3PPP/RNBQKB1R w KQkq", "id": 367, "m": "e2e4 c7c5 g1f3 g7g6 c2c3 f8g7 d2d4 d8a5"},
{"c": "B06", "n": "Pterodactyl Defense: Western, Rhamphorhynchus", "f": "rnb1k1nr/pp1pppbp/6p1/q1P5/4P3/5N2/PPP2PPP/RNBQKB1R w KQkq", "id": 354, "m": "e2e4 c7c5 g1f3 g7g6 d2d4 f8g7 d4c5 d8a5"},
{"c": "B06", "n": "Pterodactyl Defense: Western, Siroccopteryx", "f": "rnb1k1nr/pp1pppbp/6p1/q7/2BNP3/8/PPP2PPP/RNBQK2R w KQkq", "id": 411, "m": "e2e4 g7g6 g1f3 f8g7 d2d4 c7c5 f1c4 c5d4 f3d4 d8a5"},
{"c": "B06", "n": "Rat Defense: Spike Attack", "f": "rnbqkbnr/ppp1pppp/3p4/8/4P1P1/8/PPPP1P1P/RNBQKBNR b KQkq", "id": 2961, "m": "e2e4 d7d6 g2g4"},
{"c": "B06", "n": "Robatsch (Modern) Defense", "f": "rnbqk1nr/ppppppbp/6p1/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 3050, "m": "e2e4 g7g6 d2d4 f8g7"},
{"c": "B07", "n": "Czech Defense", "f": "rnbqkb1r/pp2pppp/2pp1n2/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq", "id": 343, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 c7c6"},
{"c": "B07", "n": "King's Pawn Game: Maróczy Defense", "f": "rnbqkbnr/ppp2ppp/3p4/4p3/3PP3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 981, "m": "d2d4 d7d6 e2e4 e7e5"},
{"c": "B07", "n": "King's Pawn Game: Philidor Gambit", "f": "rn1qkbnr/pppb1ppp/3p4/4P3/4P3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 985, "m": "e2e4 e7e5 d2d4 d7d6 d4e5 c8d7"},
{"c": "B07", "n": "Lion Defense: Anti-Philidor", "f": "r1bqkb1r/pppnpppp/3p1n2/8/3PPP2/2N5/PPP3PP/R1BQKBNR b KQkq", "id": 1268, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 b8d7 f2f4"},
{"c": "B07", "n": "Lion Defense: Anti-Philidor, Lion's Cave", "f": "r1bqkb1r/pppn1ppp/3p1n2/4p3/3PPP2/2N5/PPP3PP/R1BQKBNR w KQkq", "id": 1269, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 b8d7 f2f4 e7e5"},
{"c": "B07", "n": "Lion Defense: Anti-Philidor, Lion's Cave, Lion Claw Gambit", "f": "r1bqkb1r/pp1n1ppp/2p2n2/3p4/2BQPP2/2N2N2/PPP3PP/R1B1K2R w KQkq", "id": 1270, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 b8d7 f2f4 e7e5 g1f3 e5d4 d1d4 c7c6 f1c4 d6d5"},
{"c": "B07", "n": "Lion Defense: Bayonet Attack", "f": "r1bqkb1r/pppnpppp/3p1n2/8/3PP1P1/2N5/PPP2P1P/R1BQKBNR b KQkq", "id": 1271, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 b8d7 g2g4"},
{"c": "B07", "n": "Lion Defense: Lion's Jaw", "f": "rnbqkb1r/ppp1pppp/3p1n2/8/3PP3/5P2/PPP3PP/RNBQKBNR b KQkq", "id": 1272, "m": "e2e4 d7d6 d2d4 g8f6 f2f3"},
{"c": "B07", "n": "Pirc Defense", "f": "rnbqkb1r/ppp1pppp/3p1n2/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 1538, "m": "e2e4 d7d6 d2d4 g8f6"},
{"c": "B07", "n": "Pirc Defense", "f": "rnbqkb1r/ppp1pppp/3p1n2/8/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq", "id": 3051, "m": "e2e4 d7d6 d2d4 g8f6 b1c3"},
{"c": "B07", "n": "Pirc Defense", "f": "rnbqkb1r/ppp1pp1p/3p1np1/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq", "id": 3052, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 g7g6"},
{"c": "B07", "n": "Pirc Defense", "f": "rnbqkbnr/ppp1pppp/3p4/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq", "id": 3448, "m": "e2e4 d7d6"},
{"c": "B07", "n": "Pirc Defense", "f": "rnbqkbnr/ppp1pppp/3p4/8/3PP3/8/PPP2PPP/RNBQKBNR b KQkq", "id": 3449, "m": "e2e4 d7d6 d2d4"},
{"c": "B07", "n": "Pirc Defense: 150 Attack", "f": "rnbqkb1r/pp2pp1p/2pp1np1/8/3PP3/2N1B3/PPPQ1PPP/R3KBNR b KQkq", "id": 1517, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 c1e3 c7c6 d1d2"},
{"c": "B07", "n": "Pirc Defense: 150 Attack, Inner Doll Defense", "f": "rn1qkb1r/pp2pp1p/2pp1np1/8/3PP1b1/2N1B3/PPPQ1PPP/R3KBNR w KQkq", "id": 1518, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 c1e3 c7c6 d1d2 c8g4"},
{"c": "B07", "n": "Pirc Defense: 150 Attack, Sveshnikov-Jansa Attack", "f": "rnbqkb1r/pp2pp1p/2pp1np1/8/3PP3/2N1B2P/PPP2PP1/R2QKBNR b KQkq", "id": 1519, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 c1e3 c7c6 h2h3"},
{"c": "B07", "n": "Pirc Defense: Bayonet Attack", "f": "rnbqk2r/ppp1ppbp/3p1np1/8/3PP2P/2N5/PPP1BPP1/R1BQK1NR b KQkq", "id": 1527, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f1e2 f8g7 h2h4"},
{"c": "B07", "n": "Pirc Defense: Byrne Variation", "f": "rnbqkb1r/ppp1pp1p/3p1np1/6B1/3PP3/2N5/PPP2PPP/R2QKBNR b KQkq", "id": 1528, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 c1g5"},
{"c": "B07", "n": "Pirc Defense: Chinese Variation", "f": "rnbqk2r/ppp1ppbp/3p1np1/8/3PP1P1/2N5/PPP1BP1P/R1BQK1NR b KQkq", "id": 1529, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f1e2 f8g7 g2g4"},
{"c": "B07", "n": "Pirc Defense: Classical Variation", "f": "rnbqkb1r/ppp1pp1p/3p1np1/8/3PP3/2N5/PPP1BPPP/R1BQK1NR b KQkq", "id": 1530, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f1e2"},
{"c": "B07", "n": "Pirc Defense: Classical Variation", "f": "rnbqkb1r/ppp1pp1p/3p1np1/8/3PP3/2N2N2/PPP2PPP/R1BQKB1R b KQkq", "id": 1531, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3"},
{"c": "B07", "n": "Pirc Defense: Kholmov System", "f": "rnbqkb1r/ppp1pp1p/3p1np1/8/2BPP3/2N5/PPP2PPP/R1BQK1NR b KQkq", "id": 1539, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f1c4"},
{"c": "B07", "n": "Pirc Defense: Roscher Gambit", "f": "rnbqkb1r/ppp1pppp/3p1n2/8/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq", "id": 1540, "m": "e2e4 d7d6 d2d4 g8f6 g1f3"},
{"c": "B07", "n": "Pirc Defense: Sveshnikov System", "f": "rnbqkb1r/ppp1pp1p/3p1np1/8/3PP3/2N3P1/PPP2P1P/R1BQKBNR b KQkq", "id": 3053, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g2g3"},
{"c": "B07", "n": "Rat Defense: Accelerated Gurgenidze", "f": "rnbqkbnr/pp2pp1p/2pp2p1/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq", "id": 1831, "m": "e2e4 g7g6 d2d4 d7d6 b1c3 c7c6"},
{"c": "B07", "n": "Rat Defense: Antal Defense", "f": "r1bqkbnr/pppnpppp/3p4/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 2973, "m": "e2e4 d7d6 d2d4 b8d7"},
{"c": "B07", "n": "Rat Defense: Balogh Defense", "f": "rnbqkbnr/ppp1p1pp/3p4/5p2/3PP3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 1832, "m": "e2e4 d7d6 d2d4 f7f5"},
{"c": "B07", "n": "Rat Defense: Fuller Gambit", "f": "rnbqkb1r/ppp1pppp/5n2/3P4/5P2/8/PPPP2PP/RNBQKBNR w KQkq", "id": 2969, "m": "e2e4 d7d6 f2f4 d6d5 e4d5 g8f6"},
{"c": "B07", "n": "Rat Defense: Harmonist", "f": "rnbqkbnr/ppp1pppp/3p4/8/4PP2/8/PPPP2PP/RNBQKBNR b KQkq", "id": 2968, "m": "e2e4 d7d6 f2f4"},
{"c": "B07", "n": "Rat Defense: Petruccioli Attack", "f": "rnbqkbnr/ppp1pppp/3p4/8/4P2P/8/PPPP1PP1/RNBQKBNR b KQkq", "id": 2962, "m": "e2e4 d7d6 h2h4"},
{"c": "B08", "n": "Pirc Defense: Classical Variation", "f": "rnbqk2r/ppp1ppbp/3p1np1/8/3PP3/2N2N2/PPP2PPP/R1BQKB1R w KQkq", "id": 1537, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7"},
{"c": "B08", "n": "Pirc Defense: Classical Variation, Quiet System", "f": "rnbqk2r/ppp1ppbp/3p1np1/8/3PP3/2N2N2/PPP1BPPP/R1BQK2R b KQkq", "id": 1532, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 f1e2"},
{"c": "B08", "n": "Pirc Defense: Classical Variation, Quiet System, Chigorin Line", "f": "r1bq1rk1/ppp1ppbp/2np1np1/8/3PP3/2N2N2/PPP1BPPP/R1BQ1RK1 w -", "id": 1533, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 b8c6"},
{"c": "B08", "n": "Pirc Defense: Classical Variation, Quiet System, Czech Defense", "f": "rnbq1rk1/pp2ppbp/2pp1np1/8/3PP3/2N2N2/PPP1BPPP/R1BQ1RK1 w -", "id": 1534, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 c7c6"},
{"c": "B08", "n": "Pirc Defense: Classical Variation, Quiet System, Parma Defense", "f": "rn1q1rk1/ppp1ppbp/3p1np1/8/3PP1b1/2N2N2/PPP1BPPP/R1BQ1RK1 w -", "id": 1535, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 c8g4"},
{"c": "B08", "n": "Pirc Defense: Classical Variation, Schlechter Variation", "f": "rnbqk2r/ppp1ppbp/3p1np1/8/3PP3/2N2N1P/PPP2PP1/R1BQKB1R b KQkq", "id": 1536, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 h2h3"},
{"c": "B09", "n": "Pirc Defense: Austrian Attack", "f": "rnbqkb1r/ppp1pp1p/3p1np1/8/3PPP2/2N5/PPP3PP/R1BQKBNR b KQkq", "id": 1520, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4"},
{"c": "B09", "n": "Pirc Defense: Austrian Attack", "f": "rnbq1rk1/ppp1ppbp/3p1np1/8/3PPP2/2N2N2/PPP3PP/R1BQKB1R w KQ", "id": 1521, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8"},
{"c": "B09", "n": "Pirc Defense: Austrian Attack, Dragon Formation", "f": "rnbqk2r/pp2ppbp/3p1np1/2p5/3PPP2/2N2N2/PPP3PP/R1BQKB1R w KQkq", "id": 1522, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 c7c5"},
{"c": "B09", "n": "Pirc Defense: Austrian Attack, Kurajica Variation", "f": "rnbq1rk1/ppp1ppbp/3p1np1/8/3PPP2/2N1BN2/PPP3PP/R2QKB1R b KQ", "id": 1523, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8 c1e3"},
{"c": "B09", "n": "Pirc Defense: Austrian Attack, Ljubojevic Variation", "f": "rnbqk2r/ppp1ppbp/3p1np1/8/2BPPP2/2N5/PPP3PP/R1BQK1NR b KQkq", "id": 1524, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 f1c4"},
{"c": "B09", "n": "Pirc Defense: Austrian Attack, Unzicker Attack", "f": "rnbq1rk1/ppp1ppbp/3p1np1/4P3/3P1P2/2N2N2/PPP3PP/R1BQKB1R b KQ", "id": 1525, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8 e4e5"},
{"c": "B09", "n": "Pirc Defense: Austrian Attack, Unzicker Attack, Bronstein Variation", "f": "rnbq1rk1/pppnppbp/3p2p1/4P3/3P1P1P/2N2N2/PPP3P1/R1BQKB1R b KQ", "id": 2929, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8 e4e5 f6d7 h2h4"},
{"c": "B09", "n": "Pirc Defense: Austrian Attack, Weiss Variation", "f": "rnbq1rk1/ppp1ppbp/3p1np1/8/3PPP2/2NB1N2/PPP3PP/R1BQK2R b KQ", "id": 1526, "m": "e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8 f1d3"},
{"c": "B10", "n": "Caro-Kann Defense", "f": "rnbqkbnr/pp1ppppp/2p5/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq", "id": 273, "m": "e2e4 c7c6"},
{"c": "B10", "n": "Caro-Kann Defense", "f": "rnbqkbnr/pp1ppppp/2p5/8/4P3/2N5/PPPP1PPP/R1BQKBNR b KQkq", "id": 3054, "m": "e2e4 c7c6 b1c3"},
{"c": "B10", "n": "Caro-Kann Defense: Accelerated Panov Attack", "f": "rnbqkbnr/pp1ppppp/2p5/8/2P1P3/8/PP1P1PPP/RNBQKBNR b KQkq", "id": 241, "m": "e2e4 c7c6 c2c4"},
{"c": "B10", "n": "Caro-Kann Defense: Accelerated Panov Attack", "f": "rnbqkbnr/pp2pppp/2p5/3p4/2P1P3/8/PP1P1PPP/RNBQKBNR w KQkq", "id": 242, "m": "e2e4 c7c6 c2c4 d7d5"},
{"c": "B10", "n": "Caro-Kann Defense: Accelerated Panov Attack, Modern Variation", "f": "rnbqkb1r/pp2pppp/5n2/3P4/8/8/PP1P1PPP/RNBQKBNR w KQkq", "id": 243, "m": "e2e4 c7c6 c2c4 d7d5 e4d5 c6d5 c4d5 g8f6"},
{"c": "B10", "n": "Caro-Kann Defense: Accelerated Panov Attack, Open Variation", "f": "rnbqkbnr/pp1p1ppp/2p5/4p3/2P1P3/8/PP1P1PPP/RNBQKBNR w KQkq", "id": 244, "m": "e2e4 c7c6 c2c4 e7e5"},
{"c": "B10", "n": "Caro-Kann Defense: Accelerated Panov Attack, Pseudo-Scandinavian", "f": "rnb1kbnr/pp2pppp/2p5/3q4/2P5/8/PP1P1PPP/RNBQKBNR w KQkq", "id": 245, "m": "e2e4 c7c6 c2c4 d7d5 e4d5 d8d5"},
{"c": "B10", "n": "Caro-Kann Defense: Accelerated Panov Attack, Van Weersel Attack", "f": "rnbqkbnr/pp2pppp/8/3p4/4P3/1Q6/PP1P1PPP/RNB1KBNR b KQkq", "id": 2875, "m": "e2e4 c7c6 c2c4 d7d5 c4d5 c6d5 d1b3"},
{"c": "B10", "n": "Caro-Kann Defense: Breyer Variation", "f": "rnbqkbnr/pp1ppppp/2p5/8/4P3/3P4/PPP2PPP/RNBQKBNR b KQkq", "id": 257, "m": "e2e4 c7c6 d2d3"},
{"c": "B10", "n": "Caro-Kann Defense: Breyer Variation, Stein Attack", "f": "rnbq1rk1/pp2npbp/2p3p1/3pp3/1P2P3/3P1NP1/P1PN1PBP/R1BQ1RK1 b -", "id": 258, "m": "e2e4 c7c6 d2d3 d7d5 b1d2 g7g6 g1f3 f8g7 g2g3 e7e5 f1g2 g8e7 e1g1 e8g8 b2b4"},
{"c": "B10", "n": "Caro-Kann Defense: Euwe Attack", "f": "rnbqkbnr/pp1ppppp/2p5/8/4P3/1P6/P1PP1PPP/RNBQKBNR b KQkq", "id": 2881, "m": "e2e4 c7c6 b2b3"},
{"c": "B10", "n": "Caro-Kann Defense: Euwe Attack, Prins Gambit", "f": "rnbqkbnr/pp2pppp/8/2pp4/4P3/1P6/PBPP1PPP/RN1QKBNR b KQkq", "id": 2958, "m": "e2e4 c7c5 b2b3 d7d5 c1b2"},
{"c": "B10", "n": "Caro-Kann Defense: Hillbilly Attack, Schaeffer Gambit", "f": "rnbqkbnr/pp2pppp/2p5/7Q/4p3/1B6/PPPP1PPP/RNB1K1NR b KQkq", "id": 2936, "m": "e2e4 c7c6 f1c4 d7d5 c4b3 d5e4 d1h5"},
{"c": "B10", "n": "Caro-Kann Defense: Labahn Attack", "f": "rnbqkbnr/pp1ppppp/2p5/8/1P2P3/8/P1PP1PPP/RNBQKBNR b KQkq", "id": 2882, "m": "b2b4 c7c6 e2e4"},
{"c": "B10", "n": "Caro-Kann Defense: Labahn Attack, Double Gambit", "f": "rnbqkbnr/pp2pppp/2p5/1P1p4/4P3/8/P1PP1PPP/RNBQKBNR b KQkq", "id": 2883, "m": "e2e4 c7c6 b2b4 d7d5 b4b5"},
{"c": "B10", "n": "Caro-Kann Defense: Labahn Attack, Polish Variation", "f": "rnbqkbnr/pp1p1ppp/2p5/4p3/1P2P3/8/PBPP1PPP/RN1QKBNR b KQkq", "id": 2884, "m": "e2e4 c7c6 b2b4 e7e5 c1b2"},
{"c": "B10", "n": "Caro-Kann Defense: Masi Variation", "f": "rnbqkb1r/pp1ppppp/2p2n2/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 290, "m": "e2e4 c7c6 d2d4 g8f6"},
{"c": "B10", "n": "Caro-Kann Defense: Massachusetts Defense", "f": "rnbqkbnr/pp1pp1pp/2p5/5p2/3PP3/8/PPP2PPP/RNBQKBNR w KQkq", "id": 291, "m": "e2e4 c7c6 d2d4 f7f5"},
{"c": "B10", "n": "Caro-Kann Defense: Scorpion-Horus Gambit", "f": "rnbqkbnr/pp2pppp/2p5/6B1/4p3/2NP4/PPP2PPP/R2QKBNR b KQkq", "id": 2715, "m": "e2e4 c7c6 b1c3 d7d5 d2d3 d5e4 c1g5"},
{"c": "B10", "n": "Caro-Kann Defense: Spike Variation", "f": "rnbqkbnr/pp1ppppp/2p5/8/4P1P1/8/PPPP1P1P/RNBQKBNR b KQkq", "id": 2918, "m": "e2e4 c7c6 g2g4"},