The game is played on a square chequered chessboard with 64
squares arranged in an eight-by-eight square. At the start, each player
(one controlling the white pieces, the other controlling the black
pieces) controls sixteen pieces: one king, one queen, two rooks, two
knights, two bishops, and eight pawns. The object of the game is to
checkmate the opponent's king, whereby the king is under immediate
attack (in "check") and there is no way to remove it from attack on
the next move.