Back to defense. First problem, you are East and your partner has played the ♦2:
The declarer calls the 4 from the dummy. Which one do you play?
Good news, it's simple: the King. Always the highest. Why?
If the declarer has the Ace, Queen and Jack, you will never make your King: it changes nothing. But imagine your partner has a little something in Diamonds, even just the Jack:
If you play small 'to avoid having your King taken' (yes, that's what you're telling yourself), South will play the ♦10:
Then he will go to the dummy and play towards the Queen (the finesse for the King) and it will work: he will make 3 diamond tricks (the 10, Queen then Ace).
On the other hand, if you play the King, he will always be able to duck to avoid losing the Jack: he will only make 2 diamond tricks. It's better.
West plays the 3 of Hearts, North the 2 from a dummy with 862. In East, you have QJ74. Which card do you play to make declarer play a high card?
Section QuizOnly one suit at No Trump; useful communications are available. Other suits are not evaluated.
At No Trump, North has K7 and South has 42 in Clubs. You can choose the starting hand. To give the King a chance against a non-singleton Ace, from where do you lead?
Review of previous knowledgeOnly one suit at No Trump; useful communications are available. Other suits are not evaluated.
Come on, play the high one when you're third to play, and you will make more and more tricks in defense.
Unlock other deals with bridge-training+]