Each player has a business card, in fact it should be a USA business card since zip-codes are mentioned in the rules. Each player will select some dice, and roll them -- trying to get sets. They can augment their sets by crossing out numbers on their business card, and they damage other players by knocking numbers on their opponents business cards. You're KOed if you have no numbers left, last card "standing" wins. Full rules at: http://www.luchacabra.com/?p=40