Players must become proficient in the formation of sets and sequences in order to win at 13 Card Rummy. Pure and impure sequences are the two categories into which they fall. Three or more consecurummy east apktive cards of the same suit without a joker make up a pure sequence, whereas at least one joker is present in an impure sequence. 5♠, 6♠, and 7♠, for instance, could be considered pure, while 4♣, 5♣, and Joker (which stands for 6♣) could be considered impure. In rummy, sets are equally crucial. Three or four cards with the same rank but different suits can be grouped to create a valid set.