A 52-card standard deck is used to play Rummy 777, a variation on the classic card game of rummy. Forming sets and sequences of cards is the objectiv2 pattie of this two-to six-player game. Sequences are made up of three or more consecutive cards of the same suit, whereas sets are made up of three or four cards of the same rank but different suits. Being the first player to form sets and sequences that are valid & declare their hand is the main goal.