International draughts (also called Polish draughts or international checkers) is a strategy board game for two players, one of the variants of draughts. The gameboard comprises 10×10 squares in alternating dark and light colours, of which only the 50 dark squares are used. Each player has 20 pieces, light for one player and dark for the other, at opposite sides of the board. In conventional diagrams the board is displayed with the light pieces at the bottom; in this orientation the lower-left corner square must be dark.