Played on a 13x13 Go board with go stones and 2 special stones each ("tigers"), the game is mostly about moving stones such that they bump opponents stones, with the hope to have them move past your tigers where they will get eaten. The winner is first to eat the opponents tiger or eat all the opponents stones, or immobilize the opponents tiger. Full rules at: http://www.luchacabra.com/?p=34 Online Play Super Duper Games