As they draw and discard cards in turn, players try to form melds, which are combinations of three or more cards in the same suit or three or four cards of the same rank. Strategies and Variations. These rules' simplicity aall rummy gamellows novices to play Rummy while still providing experienced players with additional layers of strategy. Numerous variations of rummy have emerged to accommodate varying tastes and ability levels. Indian Rummy, for example, frequently uses two decks and requires players to form at least two sequences, one of which must be pure (without a joker), whereas Gin Rummy is a two-player variation that stresses strategic discarding & skillful play.