Horizontal, vertical, and diagonal movement, which is the basis of many mathematics/science concepts, is practiced in this simple but challenging entrapment game. In addition, students experience a dynamic use of counting skills while exploring deductive thinking and the topology of open and closed regions. Students take turns placing a chip (referred to as a square-eating Quadraphage) on a grid-type gameboard and moving their pawn (the King) to entrap the opposing King.