Players need to understand how to form runs (three or more consecutive cards of the same suit) and sets (three or four cards of the same rank). Players can also strategically affect theirummy royar opponents' choices by frequently laying down their melds during their turn. The game also combines aspects of psychology and strategy since players have to pay close attention to their opponents' movements and predict their intentions. Gaining proficiency in these core principles improves your enjoyment of Rummy overall & prepares you for more complex strategic play.