Quatrochess is a chess variant for four players invented by George R. Dekle Sr. in 1986.
The game can be played in partnership (two opposing teams of two) or all-versus-all.
The squareless center may not be moved to or through; however, it may be jumped over by pieces that leap (knight, chancellor, archbishop, camel, and giraffe).
The king, queen, rook, bishop, knight, and pawn move and capture as they do in chess.
As in chess, pawns have an initial two-step option, en passant is possible, and promotion occurs at the board's end.