The cards they appear interested in can be used to determine the kinds of melds they are attempting to create. You can use this information to help you decide which cards tocolour prediction keep or throw away. You can also determine the probability that particular cards will remain in play by keeping a mental record of the cards that have already been played. For instance, it may be less likely for an opponent to create a high-scoring meld with those ranks if you observe that multiple high-value cards have already been discarded.
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