Double Dummy Corner

 

Competition Problem 59

composed by Steve Bloom
presented for solving in January, 2010

DR4

♠ KJ2

 Q108

 K432

♣ AK3

♠ 10

 K9654

 AQ

♣ QJ1094

♠ Q865

 J

 J9876

♣ 765

♠ A9743

 A732

 105

♣ 82

South to make five spades when West leads (a) the ♣Q, (b) the A.

Successful solvers:  Ian Budden, Leigh Matheson, Rajeswar Tewari, Wim van der Zijden

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Solution

A.      If West leads a club, North wins and plays trumps by leading the J, then winning the second with the K and taking a second finesse against East.  Having drawn trumps, South leads a heart to North’s Q.  West must not discard more than one heart.  If West has kept a diamond, the A and a club ruff are followed by a diamond to West.  West's other remaining minor suit card wins the next trick and then the forced heart lead away from the K gives declarer the rest of the tricks.  If West discards both diamonds, then North can discard either club or a diamond on the fourth trump.  North now leads a diamond towards the 10.  East wins with the J and returns a club, but North’s 10 affords an entry to allow both the 10 and K to score.

B.      If West plays A and Q, North wins the second and draws trumps as in A., optionally cashing one top club.  North discards a diamond on the fourth spade, leaving this position:

♠ none

 Q108

 4

♣ K3

♠ none

 K965

 none

♣ Q4

♠ none

 J

 J98

♣ 76

♠ 4

 A732

 none

♣ 8

South plays a heart to the Q and ruffs the diamond.  If West discards a heart, South gives up a heart and wins the last three tricks with the K and A7.  If West discards the 4, South leads a club and North allows the Q to hold.  If West discards the Q, South can either cash the 8 or lead a low heart immediately.

C.      If West cashes the A and switches to clubs, North wins and trumps are drawn as before.  The K can be played at any time when North has the lead, but if it is not played West will discard the Q.  North makes the Q, and the K if it is still held, and play reverts to line B.

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, 2010

Date last modified: 15 April, 2017