Three or more consecutive cards of the same suit (a run) or three or four cards of the same rank (a set) make up a valid meld. In order to give the game more strategic slots online casinosdepth, players can also "lay off" cards onto already-existing melds on the table. Points are determined by taking into account the cards that are still in opponents' hands after a player successfully melds all of their cards to end the round. There are many variations of rummy, each with its own set of rules and strategies for play.