Double Dummy Corner

 

Competition Problem 183

composed by Franco Baseggio 
presented for solving in June 2020

DR6

♠ 974

 AK1032

 A3

♣ Q32

♠ KQ32

 97

 K9

♣ 97654

♠ 1086

 J865

 J654

♣ KJ

♠ AJ5

Q4

 Q10872

♣ A108

South to make five no-trumps.  West leads the ♠K.

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Successful solvers:  Steve Bloom, Ian Budden, Steve McVea, Sebastian Nowcki, Rajeswar Tewari, Dave Wiltshire, Wim van Der Zijden.  This one was received with great acclaim from solvers, whose DR suggestions ranged from 4 to 7.  Line C proved difficult to spot.

Solution

South’s A wins the first trick, North dropping the 7!  Next comes the 10, North playing low unless West rises with the K.

A.      If West ducks and East wins with the J, then the only safe exit is another diamond.  However, South comes to hand on the Q to run the diamonds and squeeze East in three suits when the last one is led in this position:

♠ 94

 AK10

 none

♣ Q3

♠ Q32

 9

 none

♣ 976

♠ 108

 J86

 none

♣ KJ

♠ J5

4

 2

♣ A108

West discards a spade on the 2, North a club.  The squeeze is what England’s Terence Reese dubbed “the vice”, referring to the spade situation.

1.       If East discards the 8, the J then catches the 10 in the vice and sets up a second spade winner.  If West ducks there is an easy squeeze-throw-in on East, so the Q wins.  North drops the 9 so that South’s 5 can exert the second squeeze should West then exit with a club.  However, if West instead exits with a heart, South discards the 5 on the second heart winner so that the 4 can do that job instead!

2.       If East unguards hearts, North’s AK and 10 repeat the squeeze, again using the spades as a vice threat.

3.       If East discards the J, North’s A and K squeeze West out of the low spade.  South then comes to hand on the A and throws West in on the Q for a lead away from 97 into 108.

B.      If West plays the K at trick two, North wins with the A.  South comes to hand on the Q to lead the 8 and the same situation arises.

C.      If the 10 wins at trick two, the minor suit aces are cashed in either order and a club is lost to the K.  East is endplayed and does best to lead the 10 to the J and Q, giving this, with West to lead:

♠ 9

 AK1032

 none

♣ Q

♠ 32

 97

 none

♣ 976

♠ 8

 J865

 J6

♣ none

♠ 5

Q4

 Q87

♣ 10

On a black suit lead now East will easily be squeezed in the red suits, so West exits on a heart to South’s Q.  North now discards  the Q on the Q and the 9 on South’s 10!  East is caught in a triple squeeze and is squeezed again by South’s 5 if the 8 is discarded.

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© Hugh Darwen, 2020
Date last modified: 02 August, 2020