Authors Starting with O

• Tim O'Lena [info] Tim's 3d Chess. On a 5x5x5 board with two kings per player. (5x(5x5), Cells: 125) 3D Arimaa . 3D Arimaa - Arimaa meets Raumschach. Hexagonal Arimaa. Hexagonal Arimaa - Based on McCooey's Hexagonal Chess., more...
• Patrick O'Neal [info] Slide-shuffle. Variation of Shuffle Chess with special castling. (8x8, Cells: 64)
• Steffan O'Sullivan [info] Steffan O' Sullivan's Three-players Chess. Three player chess variant on a board with 58 squares. Knightmare Chess: A review. Review of commercial Chess variant using cards that change things.
• Jesse A. Obligacion [info] Chess II. Two extra files with two additional pieces (princes) on each side. (10x8, Cells: 80)
• Alexandr Oleshko [info] Gess on zillions game. Gess zillions rules. Chess Remix. Create your chess variant. ()
• Fabio Coracini Ollita [info] Chess On Stamps. Web site devoted to postage stamps on Chess themes.
• Richard Orange [info] 10th Anniversary World Circular Chess Tournament. 10th Anniversary World Circular Chess Tournament.
• Glenn Overby II [info] 1st World Open Chess Variant PBEM Championship. Tournament proposal open for public comment before creation. Contest to design a chess variant on 43 squares. Missing description CVP Hall of Champions. See who has prevailed in all the competitions we've ever held, and hints about the future., more...
• William Overington [info] Herb garden chess. Variant on 7 by 12 board with additional combination pieces. (12x7, Cells: 84) Tree garden chess. Large chess variant on 10 by 10 board with 4 by 4 area missing from the middle. (10x10, Cells: 84)