West leads ♦Q, East gives the ♦2
This hand comes from a card-counting article. The solution is to win ♦K, draw trumps in 3 rounds (East discards 3 hearts) and then play 3 rounds of clubs. If East follows 3 times then play them for 0733 shape and drop West's ♦Q, if only twice then 0742 and finesse in diamonds twice since West led from a singleton.
What is not mentioned in the article is the possibility that West led from ♦QJ7, where a simple surrounding play will work. We have to make this decision at trick 1 since we cannot pick up J972 with East if the first trick is won with the ♦A.
How would you play the hand? and is it clear which line is best?

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