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Trump Promotion

 

Sometimes the defense does not have a natural trump trick but can generate one by a trump promotion or an upper-cut ... the examples will explain everything!

 

Related Play Problems          Play Problem 29

 

 

Related Extracts from Past Wednesday Games

 

 

 30

♠ KJ

9654

KQJT83

♣ 5




From 11th April, 2007

♠ Q874

A93

A92

♣ 976

          North

West             East

          South

♠ T953

KQJT

75

♣ AT8

 

Dlr     East
Vul     None 


 
 
 
 
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♠ A62

72

64

♣ KQJ432

West    North   East     South

                        Pass    Pass

Pass    2        Dbl      3♣

Pass    3        All Pass

 

3 is not a success, unless the defense errs grievously.  East will lead the K, and should shift smartly to a low trump, ducked by West.  Why the duck?  West cannot be sure that Declarer does not have the A♣, it would be most unfortunate if Declarer won the second round of trumps and claimed 11 minor suit winners, pitching major suit losers on the run of the Clubs.  So, Declarer wins the first Diamond and knocks out the A♣, but the defense is in control, drawing Dummy’s other trump and cashing its remaining three Heart winners.  Down two.

 

It turns out that the 6-1 Club fit plays better, and when West makes the natural enough Spade lead, it even makes.  In fact, the only way to beat 3♣ is an upper-cut.  Let’s say that West somehow stumbles upon the lead of the A, followed by a Heart to East’s hand.  Now, East must lead a Diamond, ducked by West.  Then, a Club to the King, and the Q♣ to East’s Ace.  Next is a Diamond to West’s Ace and a Diamond back … East ruffs with his Ten, hitting Declarer with an upper-cut that establishes West’s Nine.  Very nice defense!

 

 

 21

AT7652

KT92

♣ J63




From 10th October, 2007

♠ 982

KQ

8

♣ AKQT874

          North

West             East

        
Dummy

♠ J543

983

AQ653

♣ 9

 

Dlr     North
Vul     N-S 


 
 
 
 
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♠ AKQT76

J4

J74

♣ 52

West    North   East     South

            2        Pass    2♠

3♣       Pass     Pass    3

Pass    Pass     Pass

 

Accurate defense beats 3 by two tricks:

            Club opening lead is won by West

            Diamond to East’s Queen

            A is cashed

            Diamond ruff

            A Club is cashed.

Now, on the third round of Clubs, Dummy is forced to ruff, and that promotes the 6th defensive trick when East’s Heart holding wins the third round of trumps.  Pretty good defense, we’d expect down one to be a more likely result.

 

 20

♠ K52

A4

AJ765

♣ 976


 

 

From 2nd January, 2008

♠ J74

862

KQT42

♣ KJ

          North

Dummy       East

          South

♠ 963

KQT53

8

♣ AQ54

 

Dlr     West
Vul     Both 


 
 
 
 
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♠ AQT8

J97

93

♣ T832

West    North   East     South

Pass    1        1        Dbl

2        Pass    Pass    Pass

 

  

Against 2, South leads a Diamond, and with careful defense N-S can beat 2 one trick:

            South leads a Diamond to North’s Ace

            Three rounds of Spades are cashed

            A Diamond is won on the board

            A Heart to Declarer’s King

            A Club to Dummy’s King

            North wins her Heart Ace

Now North leads another Diamond, promoting South’s J for the setting trick.

 

 

 9

♠ AJT96

QT

A652

♣ 82




7th May, 2008

♠ K7

K873

KQ93

♣ AT9

          North

West             East

          South

♠ 8532

AJ

JT74

♣ QJ6

 

Dlr     North
Vul     E-W 

 


 
 
 
 
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♠ Q4

96542

8

♣ K7543

West    North   East     South

            1♠        Pass    1NT

Dbl      2        Dbl      2♠

Dbl      Pass    Pass    Pass

 

On opening lead, East can safely deduce that Dummy will have Diamond shortness, and, that being the case, a trump lead stands out.  The Q♠ is played from Dummy, covered by the King and Ace.  Now the A and a Diamond ruff and it looks as if Declarer can escape with 7 tricks via 5 Spades in her hand, plus the A and a Diamond ruff.  But not so!  Declarer has no way to get back to her hand and draw trumps and if the defense times things correctly there will be a trump promotion in the end-game.  The defense will wind up scoring two tricks in each side-suit, plus that promoted trump, for a juicy +300 and a well-earned top board.  The precise sequence of plays is:

            Spade to the Queen, King, Ace

            A and ruff a Diamond

            Heart to East’s Jack

            The A is unblocked

            Q♣ covered by the King and Ace

            Club to the Jack

            K and Q are cashed

Declarer’s hand has been picked clean of side-suit cards and the defense has arranged to have the lead with West at the crucial Trick Ten.  West leads a Heart and Declarer is done for.  If she ruffs high then East’s 8♠ is promoted, and if she ruffs low then East can overruff.  Nicely done, E-W!

 

 

 31

♠ 63

J3

AKJ2

♣ AQ876




2nd April, 2008

♠ 87

QT9854

Q98

♣ 92

          North

West             East

         
South

♠ AKT9542

T73

♣ JT3

 

Dlr     South
Vul     N-S 


 
 
 
 
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♠ QJ

AK762

654

♣ K54

South   West    North   East 

1        Pass    2♣       3♠

Pass    Pass    Dbl      Pass

4♣       Pass    5♣       Pass

Pass    Pass

 

East’s 3♠ had the desired effect of creating complications for N-S.  North’s Double simply said “Do something”, and at any other vulnerability South would probably have passed.  But, being Red vs White, she went in search of the game, and the partnership ends up in the rather poor contract of 5♣.  At first glance it might appear that 5♣ will be a lucky make.  The Clubs are breaking, the Diamonds turn out to be worth 4 tricks, and the only losers are the AK♠.  Not so fast!  After the two Spades are cashed, the defense has a surprising resource.  East leads a third round of Spades, allowing West to deliver an upper-cut with the 9♣, thereby promoting a trick for East’s JT3.  Nice defense!

 

 

 16

♠ AK6

J6

AJ52

♣ Q942




20th February, 2008

♠ 653

AT9764

9

♣ K85

          North

West             East

          South

♠ J74

832

KQT84

♣ AT

 

Dlr     West
Vul     E-W 


 
 
 
 
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♠ QT92

KQ

763

♣ J763

West    North   East     South

2        Dbl      3        3♠

Pass    Pass    Pass

 

On this board N-S let themselves get bounced into 3♠ by the West Weak Two and East’s preemptive bump to 3.  This turns out to be particularly unfortunate for them as with perfect defense nobody can make more than 7 tricks in anything!  North’s Double was fine, and South’s 3♠ was not terrible, but the end-result was down two for N-S when it could be E-W going down two.  A triumph for preempting, we would say.

 

Actually, although Deep Finesse says that both 3 and 3♠ can go down two tricks, they are both quite likely to go down just one:

-         The defense against 3 has 5 obvious tricks (3 Spades, a heart and the A).  Do you see where the 6th comes from?  Yes, it requires a trump promotion, but the defense must play with great accuracy to achieve this … North cashes the A♠, K♠, A, then a Spade to South’s Queen, setting the scene for the play of the 13th Spade for the trump promotion.  This is a very tough defense to find, surely most Declarers will escape with 8 tricks in their Heart contract.

-         The defense against 3♠ must get a Club ruff if they are to beat the contract by two tricks, and we’d also rate that as unlikely.

 

 

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