An opponent may unintentionally help them form a sequence if you discard a queen of hearts after they have already collected multiple hearts. On the other hand, you must consider how a card fits iram slots 1-3 vs 2-4nto your existing strategy when you take it out of the discard pile. Picking up a card that your opponent has discarded that could help you finish a set or sequence might be worthwhile, even if it means giving up another card in your hand. This choice should always be in line with your overall strategy; if picking up a card greatly improves your position, it might be worth the compromise.
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