In Gin Rummy, you draw a card from the draw pile or the discard pile, & then you discard one card from your hand. Players intend to "knock" tnew tinpatti appo end the round when they think they have created enough melds to win. Both players show their hands when someone knocks, and points are determined by the number of unmatched cards. Going "gin" is when a player has no deadwood at all; this results in bonus points for that player.