Checkers (also called "draughts") is a board game for 2 players, each with 12 pieces (men, counters, or checkers) positioned on the black squares of a 64-square checkerboard. Play consists of advancing a piece diagonally forward to an adjoining square, the goal being to jump and thus capture each of an opponent's pieces until all are removed and victory is declared. When a piece reaches the final (king) row, it is crowned with a piece of the same color and can begin to move in any direction. The game is ended when either of the players has lost all his men, or cannot move them. Similar games have been played in various cultures and in times extending back to antiquity.