The Duck - Deal 6
Previous Deal - Home - Next Deal

Bidding: : (W) 1♠ - 3♠ - 4♠ - Pass     Lead : Q♣

Trick 9 North
3♥
 
Declarer (W)
♠ - 8 - - -
♥ - J 8 6
♦ -

♣ - - -
Q♥     7♥   Dummy (E)
♠ - - -
♥ A -
♦ - - - 10 9

♣ 9 - -
    2♥
South
  Won = 8
Lost = 1

Previous - Next

Because Declarer was able to discard his 4♣ loser on Dummy's Q♦ the direct finesse in is safe.
If South had won with the K♥ and then lead a ♣, Declarer could have ruffed it.

If South had played his K♦ at trick 7 instead, Declarer would have been forced to ruff instead of discarding his 4♣.
In that case the finesse would have been risky, costing 2 tricks if it failed.