Monitoring the cards that are discarded is a crucial tactic in many card games and can reveal important details about which cards are still in play. Players can estimate theglee rummy cards in their opponents' hands & modify their tactics by keeping track of which cards have been discarded. One way to determine what your opponents might be holding is to look at the number of high-value cards that have been discarded without being picked up by other players. This can help you determine whether those cards are still in play.