Sequences, which are necessary to win the game, can be formed by these runs. Groups of cards with the same rank are another important pattern to watch out for. These groupings can be utslots fruitsilized to create sets, which are also essential for winning in rummy. Recognizing important patterns and sequences also entails predicting which cards your opponents are most likely to discard. You can better position yourself to profit from their discards and draws & prevent them from forming sets & sequences by keeping a close eye on the cards they are discarding.