Monochromatic chess d2 and f2, the white king can move from e1 only with castling and then g1–h2–g3–... so the pawn on g3 cannot be white. In Bichromatic chess, the opposite restrictions apply. A piece on a white square must move to a black square and vice versa. Hence pawns cannot capture (or advance two squares) and bishops cannot move. Also, castling and "en passant" are impossible, and queens behave like rooks. Monochromatic chess Monochromatic chess is a chess variant with unknown origin. The initial board position and all rules are the same as in regular chess, except that pieces that begin
Four-player chess can be checkmated, the game is a draw. Singles is substantially harder than team play. In this method, each player can attack any of the other three players and vice versa. Once a player is checkmated, the checkmated player can either remove their pieces from the board, or the player that checkmated can use the remaining pieces during that player's turn. Play continues until only one player remains. Four-player chess Four-player chess (also known as Four-handed, Four-man, or Four-way chess) is a family of chess variants typically played with four people. A special board made of standard 8×8 squares with