However, when holding a 9-card combination, it's better to cash the ace and king and hope the queen drops. This is a 52% favorite to pick up the queen, as opposed to 50% for a simple finesse.
In the above layout, declarer should play the top two hearts and hope for the queen to fall.
Note that "Eight ever, nine never" is not an absolute rule. The auction and defenders' play may also provide clues about the whereabouts of the missing queen.
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