Deal 1
 
  3NT



 
 WEST  NORTH  EAST  SOUTH
passpass1NT
pass3NTpasspass
pass

The bidding has been as shown.
The contract is 3NT and it is your lead.

When you have made your choice click NEXT .
♠ 8 6 5
K Q J 9 7
8 6 2
♣ K 3



 


 

 
Deal 1
 
  3NT
♠ K Q 4
6 4 2
A 3
♣ Q 10 8 7 4
  Lead the K, the top of an honor sequence.
Leading an honor sequence is always good strategy against a notrump contract.
It is attacking, threatening to set up several winners for you, and there is little risk that you will give away a trick.

South will probably hold up, at least once. If he does, you should continue the suit by next playing the J. This is standard technique; if your first card holds the trick and you want to continue the suit, play the lowest card in the sequence and partner will know that you have all the ones in between.

South only has 7 winners unless he can establish the ♣ suit, and when you win your ♣K you will also be able to win enough s to set the contract.

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