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Circular Chess. Chess on a round board. (Cells: 64) (Recognized!)[All Comments] [Add Comment or Rating]
Kevin Pacey wrote on 2018-09-10 UTC

Here's a wiki on the theory of Circular Chess. At one point it is claimed that 3 minor pieces can mate a lone K. I believe this is true for N+2Bs (with Bs running on opposite colours), but I cannot yet see how 2N+B can force mate normally:

https://en.wikipedia.org/wiki/Circular_chess#Theory