Deal 8
 
  3NT
♠ A Q J 10 7
A 5
K 10 4
♣ A 7 2
 
 WEST  NORTH  EAST  SOUTH
1♠pass1NT
pass3NTpasspass
pass

The bidding has been as shown.
Partner led the 2, dummy played the A and it is your play.

When you have made your choice click NEXT .

2

♠ K 6 2
K Q 3
10 9 8 5
♣ 9 7 3
 


 

 
Deal 8
 
  3NT
♠ A Q J 10 7
A 5
K 10 4
♣ A 7 2
  Play the Q (or K).

You know partner has a 4-card suit, (he led the deuce), and you know it is headed by an honor. You hope the honor is the J, but in any case you must get your high s out of the way.

Declarer will probably come to his hand and then take a ♠ finesse.
You win the ♠K, take your other high , then lead your 3 toward your partner.

As you see, partner did hold the J 9, so your side wins 3 tricks.

If declarer played low on the first trick you would win the Q, then play the K to dummy's A.

 Deal 9 
♠ 9 8 3
J 9 6 2
A 8 5 3
♣ Q 8
♠ K 6 2
K Q 3
10 9 8 5
♣ 9 7 3
  ♠ 5 4
10 8 7 4
Q J 6
♣ K 6 5 4