Deal 14
 
  6
OL: ♠J
♠ K 7 2
K J 10 9 3
7 2
♣ K J 10
 
 WEST  NORTH  EAST  SOUTH
1
pass3pass4NT
pass5♣pass6
passpasspass

You are West. The bidding has been as shown.

You lead the ♠J, the ♠K is played from dummy and holds the trick.
Next come dummy's K, then another trump to South's A.

At trick 4 South plays the ♣2 from his hand and you must decide what to play.

When you have made your choice click NEXT .
♠ J 10 9 6
--
10 8 6 4 3
♣ A 8 4 3
♠ 3
7 4

  ♠ 5
A 2

♣ 2
 

 
Deal 14
 
  6
OL: ♠J
♠ K 7 2
K J 10 9 3
7 2
♣ K J 10
  Play the ♣3 (smoothly).

South has 2 small ♣s and faces a choice of dummy plays in the suit.
He must decide whether to play you for the ♣A or the ♣Q.
If you play your ♣A you make the decision very easy for him.

When you correctly play your small ♣ life becomes harder for South.
Sometimes he will guess correctly and play dummy's ♣K, but other times he will play dummy's ♣J, hoping you have the ♣Q.

 Deal 15 
♠ J 10 9 6
--
10 8 6 4 3
♣ A 8 4 3
♠ 8 4 3
7 4
Q J 9 5
♣ Q 9 7 5
  ♠ A Q 5
A Q 8 6 5 2
A K
♣ 6 2