♠ A 4 3 2
♥ 7 6 2
♦ J 5 2
♣ A 7 2
Q: 5 - What do you lead as West?
4 NT = Blackwood
= 3 or 0 Keycards (The keycards are the 4 Aces and the King of Trumps)
A: ♣A – Playing for IMPs you’d probably have led a small trump, hoping to be able to get three tricks. In matchpoints, however, the goal is not to set the contract.
Your opponents tried to bid a slam and stopped because they are missing two Aces. There is a risk of Diamonds discards from dummy, so you need to lead one of your Aces to make sure you hold the contract to 5♥ just made.
As you are shorter in Clubs than in Spades, the risk of your Ace being ruffed away is smaller, but you can still count a point for you if you led the ♠A.
Your result so far: