Choosing how to construct their hands, control their discards, & predict the moves of their opponents are all strategic decisions. The fundamental ideas of meldirummy now appng & laying down cards are at the heart of Playship Rummy. Grouping cards into valid runs (three or more consecutive cards of the same suit) or sets (three or four cards of the same rank) is known as melting. The game encourages players to think critically about their hands and the potential combinations they can create.