Cryptographic techniques have been used intensively in the past to show how to play multiparty games in an adversarial scenario. We now investigate the cryptographic power of a deck of cards in a solitaryscenario.Inparticular,we showhow a person can selecta random permutation satisfying a certain criterion dixreetly (without knowing which one was picked) using a simple deck of cards. We also show how it is possible using cards to play games of partial information such-as POKER, BRIDGE and other carda games in solitary.