Effective gameplay in Rummy requires an understanding of its subtleties. Rummy comes in a variety of forms, each with its own set of rules & scoring methods, including Indiarummy balln Rummy and Gin Rummy. For example, in Indian Rummy, players must form at least two sequences, one of which must be a pure sequence devoid of a joker, while in Gin Rummy, players try to form melds while minimizing the value of unmelded cards. Gaining familiarity with these variations can have a big impact on your game performance and strategy.