Through the development of acute observational skills and critical analysis of opponents' moves, players can improve their decision-making throughout the game & obtain a competrummy gopditive advantage in Rummy Circle. A Comprehensive Guide to Melds and Sets in Rummy Circle. Creating strong melds and sets is the foundation of Rummy Circle gameplay. Players must carefully arrange their cards into sets or sequences that make sense while taking into account the possible moves of their opponents as well as the makeup of their own hands.