Draughts (, British English) or checkers (American English) is a group of strategy board games for two players which involve diagonal moves of uniform game pieces and mandatory captures by jumping over opponent pieces. Draughts developed from alquerque. The name derives from the verb to draw or to move. The most popular forms are international draughts, played on a 10×10 board, English draughts, also called American checkers, played on an 8×8 checkerboard, Russian draughts, also played on an 8×8. There are many other variants played on an 8×8 and Canadian Checkers played on a 12×12 board.