Deal 1
 
  3NT
♠ 8 6 5 3
A 7 2
K 6 4
♣ A 8 7
 
 WEST  NORTH  EAST  SOUTH
1NT
pass3NTpasspass
pass

The bidding has been as shown.
Partner led the ♠2, dummy played the ♠3 and it is your play.

When you have made your choice click NEXT .
♠ 2


♠ Q 9 4
J 9 8 5
Q J 10 5
♣ J 10
 


 

 
Deal 1
 
  3NT
♠ 8 6 5 3
A 7 2
K 6 4
♣ A 8 7
  Play the ♠Q.
This is a perfect example of why you should USUALLY play Third-hand-high.

If you do not put your ♠Q on this trick declarer will get an undeserved winner with his ♠J. In this Deal it will be his ninth trick. Play Third-hand-high and he will go down, otherwise he will make his contract.

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