It is important to concentrate on creating pure sequences because jokers cannot be a part of a pure sequence in rummy. In order to guarantee that you have a playable hand when a23 gamesit comes time to declare, concentrate on creating pure sequences early in the game. 2. Keep an eye on your opponents: Observe the cards your opponents are discarding and selecting to gain insight into the sets and sequences they are attempting to form. Making tactical choices about which cards to hold onto and discard can be facilitated by this. 3.