The game goes on until one player declares "Rummy" and wins the round by successfully combining all of their cards into sets and sequences that are legal. It takes strategic thinking and astute observation to win at Rummy Ranrummy youri; luck is not enough. Keeping tabs on the cards your opponents are discarding or picking up is a good tactic. You can use this information to gain important insight into their possible hands and make well-informed decisions about which cards to keep and which to discard. For example, it might be prudent to keep cards that could finish their set if an opponent routinely selects cards from the discard pile that are almost ready to form a sequence.