- Baroque/Ultima. Game where each type of piece has a different capturing ability. (8x8, Cells: 64) (Recognized!) Author: Hans L. Bodlaender. Inventor: Robert Abbott.
- Berolina Chess. Different moving pawns. (8x8, Cells: 64) (Recognized!) Author: Hans L. Bodlaender.
- Diamond Chess. Based on orthodox chess but rotated 45 degrees (invented in 1886). (8x8, Cells: 64) Author: Greg Strong. Inventor: A.K. Porterfield Rynd.
- Dimension X. Chess on two planes - one with the usual chess pieces, the other with spooky trans-dimensional pieces with strange interactions. (8x8x2, Cells: 128) By Gary K. Gifford.
- Magnetic Chess. Pieces that moved attract and repel pieces like magnets. (8x8, Cells: 64) (Recognized!) By João Pedro Neto and Claude Chaunier.
- Pocket Mutation Chess. Take one of your pieces off the board, maybe change it, keep it in reserve, and drop it on the board later. (8x8, Cells: 64) (Recognized!) By Michael Nelson.
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