Making better decisions that increase your chances of winning can be achieved by improving your ability to observe and pay attention to the cards and other players presentapk apps. Recognizing Strategies Particular to Variations. For example, minimizing unmatched cards is essential in Gin Rummy, where the objective is to "knock" before going out. Melting must take precedence over reducing unmatched cards in Indian Rummy, which places more emphasis on creating legitimate sets and sequences before declaring victory.