Double Dummy Corner

 

Competition Problem 88

composed by Paolo Treossi
presented for solving in June, 2012

DR6

♠ Q8

 AQ62

 3

♣ AK8653

♠ J7

 107

 109876

♣ QJ74

♠ AK954

 K954

 Q54

♣ 10

♠ 10632

 J83

 AKJ2

♣ 92

South to make three no-trumps against any minor suit lead by West.

Successful solver:  Steve Bloom, who suggested DR5-6, was the only successful solver.

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Solution

Against a club lead (the 4), North wins and South can play either card.  North leads the 2.

A.      If East plays low, South wins with the J and leads a club.  West plays high and North wins.  South finesses the J, cashes the AK, North discarding clubs.

1.       If East has discarded a spade and so is down to ♠ AK95 and K95, South leads a spade to the 7, 8 and 9.  Now a heart lead lets North plays three rounds of that suit, after which East must let North or South win a spade trick, whereas three rounds of spades, North discarding clubs, let declarer play the 8 to 10, Q and K so that Northís A6 take the last two tricks.

2.       If East discarded a diamond on the second club and then a heart on the third diamond, so now has ♠ AK954 and K9, then North plays A and another heart.  East must allow either North to score both major suit queens or South to make two tricks with the 106.

B.      If East wins with the K and returns a heart, declarer has options.  Simplest is to win with the J, cash all of Northís winners, then win three diamond tricks, North discarding clubs.  East and South are now down to four spades each and declarer has won eight tricks.  A spade, North just covering Westís card, guarantees a spade trick for either Northís Q or Southís 10.

C.      If East wins with the K and returns a diamond, South wins as cheaply as possible and leads a club (optionally cashing one more diamond first).  Westís J is allowed to hold.  South wins the red suit return and cashes the other red suit winner, followed by Northís hearts.  West is squeezed in this position:

♠ Q8

 Q

 none

♣ A8

♠ J7

 none

 10

♣ Q7

♠ AK95

 9

 none

♣ none

♠ 10632

 none

 2

♣ none

South discards a spade on the Q.  A club discard by West is immediately fatal, so Ö

1.       If West discards the 10, North leads the Q.  If East wins the second spade, South gets the last two tricks with the 10 and 2.  If West wins it, North gets the last two in clubs.

2.       If West discards a spade, North cashes the A, South discarding the diamond loser, and leads the Q to pin the J and guarantee a trick in the suit.

On a diamond lead, South must win the AKJ, North discarding clubs, and then lead the 9, running it to Eastís 10 if West plays low.  Eastís best return is a heart to 10 and Q, in which case North follows with a second heart.  East wins this with the K and returns a third heart to Southís J.  After a club to the J and K we reach the ending shown in line C.

See the solution to Competition Problem #4 for the recommended tabular format if you prefer not to write in English prose.

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© Hugh Darwen, 2012

Date last modified: 11 March, 2017