Chess is a recreational and competitive game played between two players. 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. Backgammon is a board game for two players in which the playing pieces are moved according to the roll of dice. A player wins by removing all of his checkers from the board. There are many variants of backgammon, most of which share common traits. English draughts, also called American checkers or "straight checkers", commonly called checkers in the U.S., but commonly called draughts in some other countries, is a form of the draughts board game played on an 8×8 board with 12 pieces on each side that may only move and capture forward.