CuckooX

[tromp]

This is more of a NOTE than an issue.

You could also make a version based on a Cuckoo Cycle variant.
The recently discovered Cuckarone seems particularly suitable,
as it doesn't allow for the easily parallelizable edge trimming,
reducing the problem to following paths in a random graph.
With a cycle length of 4, it has 2^4/4 = 4 expected solutions per graph,
and with 16 edge bits, the graph has 2^16 edges, comparable to the (60,3)
parameters for EquiX.

[1] https://forum.grin.mw/t/critical-pow-vulnerability-closed-the-accidental-birth-of-a-new-pow