Ben 39 . Pieces move on squares and corners of board with 37 fixed and two movable squares. Beryl Chess . Variant on board of 39 triangles. Bottleneck Chess .
Most pieces start the game locked up in two bottleneck parts of the board.
By K ksal Karakus. Submission to the contest to design a chess variant on a board with 41 squares . C Catastrophic 8x8 Chess . Mathematician Missoum gives a new type of chessboard. A chess variant on a board with 37 squares, by David Howe.