Crossings is an abstract strategy game for two players published in Sid Sackson's A Gamut of Games and Stephen Addison's 100 Other Games to Play on a Chessboard It can be played with a standard set of Checkers. The object of the game is to reach the opposite side of the board, while preventing the opponent from doing the same. Reimplemented-by: Epaminondas on a 14x12 board