The Game of Check is a variation of Chess. The pieces are assigned a value according to their class. The values are exchanged in combat. The piece of higher value remains on the board as the difference (e.g. Rook, 3, attacks Knight, 4; Knight becomes King, 1). Players may control multiple Kings. A piece that would become a pawn in the 8th rank becomes a Queen. When a player's only King or all their Kings are in checkmate, that player has lost the game.