There may be differences in the rules for melds, scoring schemes, or card values amongst variations. A competitive advantage over rivals can be obtained by being aware of thespin and winse subtleties. Also, in rummy, effective hand management is essential. While keeping track of what their opponents are picking up or discarding, players should concentrate on discarding cards that are less likely to assist them in creating valid combinations. Choosing which cards to keep or discard can be influenced by this strategic awareness.