Bughouse chess is a popular chess variant played on two chessboards by four players in teams of two. Normal chess rules apply, except that captured pieces on one board are passed on to the teammate on the other board, who then has the option of putting these pieces on their board.
A game of bughouse chess in progress
A chessboard is a gameboard used to play chess. It consists of 64 squares, 8 rows by 8 columns, on which the chess pieces are placed. It is square in shape and uses two colours of squares, one light and one dark, in a chequered pattern. During play, the board is oriented such that each player's near-right corner square is a light square.
A wooden chessboard with Staunton pieces
Chessboards during a match of Bughouse
Spatial position of the boards in Raumschach
Illustration from the book Through the Looking-Glass by Lewis Carroll, where the chessboard is represented by fields and brooks that Alice must traverse