Mastering Rummy: A Complete Guide The combination of skill, strategy, and a little bit of luck in the well-known card game rummy has enthralled players worldwide. The fundamental idea of the game is to form runs and sets frwin rummyom a card hand. A run is a series of three or more cards in the same suit, whereas a set is made up of three or four cards of the same rank but different suits. Getting these combinations together before your opponents do is the goal, which calls for both strategic thinking and a solid grasp of the rules. Depending on the particular variant being played, the number of decks used can change, and the game can be played with two or more players.