It takes timing and strategy awareness in addition to card combination knowledge to create successful melds. In addition to strengthening their own hands, playersted slots should try to make melds that throw off their opponents' strategies. To impede an opponent's progress, a player may decide to strategically discard cards of a certain rank or hold onto them longer if they observe that the opponent is amassing cards of that rank. Also, when forming sets and melds, flexibility is crucial.
