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Deal of the Week (Mar 10, 2006) Click here for Archives
Problem:

The Auction:
South West North  East
1S     pass    1NT    pass
2C    2H      4S    all pass

The opening lead is the 8 of Clubs, you win in dummy with the Ace, East playing the Jack. The scoring is matchpoints, and your goal is to try to take as many tricks as possible. How do you proceed?
Solution:
Part 1:


After you win the opening club lead in dummy, the first question is how do you play the spades. If East has the singleton King of Spades, the correct play is a low spade from dummy, as you don't want to waste the Queen or Jack. But if East has four spades headed by the King and Nine, you have to play a spade honor from dummy (if you play a spade to the ten, you can no longer pick up the suit). So which scenario is more likely?
The clue lies in the bidding. Since West bid 2H, he is more likely to have shortness in spades, and hence East is more likely to hold K9xx of spades rather than the stiff King. So, you play the Queen of Spades, and it holds. You continue with the Jack of Spades, and that holds too. What next?

Part 2:

The situation is now analogous to last week's deal. You should not draw the third trump now. You should continue with the Queen of Clubs, and a Club to your King. If clubs are 3-3, all's well. On this deal, clubs are 4-2 (which is likely since West led the 8 of clubs) and West discards a diamond on the King of Clubs. Your thoughtful play pays off this week too, as you ruff your fourth club in dummy! You come to hand with the Ace of Hearts, East following with a low card, West playing the Ten, and draw the last trump with the Ace, West discarding another heart.
You are now cold for 11 tricks (five spades, three clubs, a club ruff, and two aces). Are you content with 11 tricks?

Part 3:

You know West has at least five hearts. He would have probably led one if he held the King, Queen and Jack of Hearts. Therefore, East must have one heart honor. When you played a heart to your Ace, East followed with a low card, so his other card must be an honor. Therefore, West must have Exactly 5 hearts. You now have a count of West's hand: He has 2 spades, 5 hearts, 2 clubs, and therefore 4 diamonds. If West also has the King and Queen of Diamonds, you can squeeze him. This is the position, assuming our card-reading is accurate so far:
 -
 98
 A84
 -
 - Deal  Immaterial
 KJ
 KQ3
 
 85
 5
 J5
 -

Play two more rounds of trumps. This will be the position before the third trump is played:
 -
 98
 A8
 -
 - Deal  Immaterial
 KJ
 KQ
 
 5
 5
 J5
 -

When the last trump is played, LHO is caught in a squeeze without the count. If he pitches a diamond, you will discard a heart from dummy, and West's King will come down on your Ace, and your Jack of diamonds will score the twelfth trick. If he pitches a heart, you will discard dummy's diamond, which is now useless, and play a heart establishing dummy's heart for the twelfth trick.
 QJ3
 9874
 A84
 AQ4
 97 Deal  K62
 KJ1063  Q2
 KQ32  10976
 82  J1096
 A10854
 A5
 J5
 K753

Analysis:
Bridge Baron's Double Dummy Analysis confirms that ruffing the club loser in dummy and executing the squeeze is the only way to make 12 tricks. Bridge Baron also says that if a Diamond honor is led at trick 1, only 11 tricks are possible. Indeed, the King of Diamonds lead takes away the diamond entry to dummy and hence the squeeze cannot operate, restricting us to 11 tricks.
Usually, for a squeeze to operate, you will have to rectify the count, i.e. give up the tricks that you cannot avoid, early in the game. On this deal, it seems ideal to rectify the count at any stage by giving up a heart trick. That would not work on this hand, since West, who was asleep and did not lead the King of Diamonds, can wake up and switch to a diamond honor and kill dummys Diamond Ace entry.
Par Contract Analysis:
According to Bridge Baron, the par contract is 5S. The only way East-West can restrict declarer to 11 tricks is to lead the King of Diamonds.

Bridge Baron deal No : 20655495559319454581958182288

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