Many games can be played with Go equipment: a supply of white and black stones and a board with 19×19 intersections, other than Go and many more can be played with minor modification. Games that can be played without modification on the intersections of a 19×19 Go board include: Games that can be played without modification on the intersections of a Go board reduced in size (perhaps by masking the unwanted sections with paper or tape) include: * Alak (1×19) * Five Field Kono (5x5) * Renju (15×15) * Philosopher's football (15×19)