The Duck - Deal 3
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Bidding: : (W) 1♣ - 1♦ - 1♠ - 2♠ - 4♠ - Pass     Lead : 4♥

Trick 1 North
4♥
 
Declarer (W)
♠ K 9 5 2
♥ A K 6
♦ K 9

♣ A K 4 3
    ?   Dummy (E)
♠ Q 7 6 4
♥ 8 5 3
♦ Q 10 6 3

♣ Q 7
   
South
  Won = 0
Lost = 0

Next

Duck
When drawing trumps lead a small ♠ from Declarer's hand.
When North plays low, play Dummy's Q♠.
If it wins play a low ♠ from Dummy, ducking in Declarer's hand, hoping to drop North's doubleton A♠.

If E had held the 9♠ (or even 10♠) instead of W, a small ♠ would have been lead from Dummy's hand towards Declarer's K♠ at the 1st ♠ trick instead.