Mastering Rummy: A Complete Guide to the 51-Card Game The combination of skill, strategy, and chance in the well-known card game rummy has enthralled players worldwide. The main obslots spelenjective of the game is to collect certain card combinations known as sets and runs. Three or four cards of the same rank but different suits make up a set, whereas three or more cards in the same suit make up a run. In order to achieve a winning score, the goal is to merge these combinations and eventually lower the total value of the unmerged cards in hand.