With the top card turned face-up to begin the discard pile, the remaining cards form a face-down draw pile. Each player draws one card from either pile and then discards one card from their hand in turn. Once a player has arragame cashnged all of their cards into sets, runs, and says, "Rummy," the round is over. ". In order for a player to win a round, all of their cards need to be in valid sets and runs, with no unmatched cards. A player gains points depending on how many cards their opponent has left in the round when they are the first to declare "Rummy.". A predetermined number of rounds usually make up the game, and the winner is the player with the highest overall score.