Deal 9	♠ Q 10 2 ♥ 8 6 ♦ 9 5 2 ♣ A 10 9 8 3		WEST   NORTH   EAST   SOUTH 2NT pass 3NT pass pass pass South is to play 3NT. West leads the ♠9, taken by East with the ♠A. East next plays the ♠4. Make a Plan, then click NEXT .
	♠ K J 7 ♥ A K 7 5 ♦ A 8 7 3 ♣ K Q

 

Deal 9      3NT OL: ♠9	♠ Q 10 2 ♥ 8 6 ♦ 9 5 2 ♣ A 10 9 8 3		South is to play 3NT. West leads the ♠9, taken by East with the ♠A. East next plays the ♠4. Winners:   ♠ = 2   ♥ = 2   ♦ = 1   ♣ = 3   Total = 8 You only need one more winner and if ♦s split 3-3 you can easily establish a trick in that suit. But what if ♦s split 4-2? If the ♣J falls you can get an extra ♣ trick. In fact, no matter how the ♣s are arranged you can establish your extra trick there. First make sure that you win the second trick with the ♠K, keeping dummy's ♠Q for a later entry. Then play ♣K, and ♣Q overtaking with dummy's ♣A. Then play the ♣10, losing to the ♣J but establishing the ♣9 while you still have the ♠Q as an entry. Click NEXT for the complete deal.
	♠ K J 7 ♥ A K 7 5 ♦ A 8 7 3 ♣ K Q

 

Deal 9      3NT OL: ♠9	♠ Q 10 2 ♥ 8 6 ♦ 9 5 2 ♣ A 10 9 8 3		As you see, you couldn't set up a ♦ trick so the ♣ overtake was necessary to make the contract.  Deal 10
♠ 9 8 6 5 3 ♥ Q 9 3 2 ♦ 8 4 ♣ 6 2		♠ A 4 ♥ J 10 4 ♦ Q J 10 6 ♣ J 7 5 4
	♠ K J 7 ♥ A K 7 5 ♦ A 8 7 3 ♣ K Q