When a player "knocks," meaning they have made most of their card combinations that are valid, or when they achieve "Gin" by melding all of their cards, the game is over. Indian Rummy, which can hold up to six players and frequently uses tsuper slots worldwo decks of cards, is another popular variation. Players must create at least two sequences in Indian Rummy, one of which needs to be a pure sequence—that is, a run devoid of a joker. Because jokers can be used to replace any card in a meld, they give the game an exciting new twist. Players in this variation are required to continuously evaluate their hands & modify their strategies in light of the cards at their disposal, which highlights strategic thinking & flexibility.