A player needs to possess three or four cards of the same rank, for example, three fives or four Jacks, in order to form a set.all rummy 51 On the other hand, three or more consecutive cards of the same suit, like the 3, 4, and 5 of hearts, make up a run. A player can declare "777" to win the game once they have created sets and runs with all of their cards that total 7 or multiples of 7.