Come on, let's get back to defense. What do you do if the declarer plays the Queen from dummy in North?
Self-preservation instinct, you might have played low. Here's what can happen:
The declarer also plays low. He wins the trick, then after he plays the Ace so 2 tricks in total.
If you had played the King, here's what the situation would have been after he took the Ace:
Look closely at North-South's cards: this time, there isn't a case where they make a second trick. They had to use their 2 honors (the Queen and the Ace) because you played your honor, the King.
Moral: you gave away a trick if you played low on the Queen.
It's normal: using a card to its best at bridge doesn't necessarily mean making a trick with it.It sometimes means covering (therefore 'playing on top of') a lower card located before it, to neutralize that opponent card.
Here, you didn't neutralize the Queen with your King: that's your mistake.
In a No Trump suit, North has J83, South has AQ2, West has T764 and East has K95. North plays the Jack. Between the King and the 5, which card from East limits the declarer's tricks?
Section quizOnly one suit at No Trump; useful communications are available. Other suits are not evaluated.
Practice covering, pal.