Double Dummy Corner

 

Competition Problem 108b

composed by Ian Budden
presented for solving in February 2014

DR2

♠ A87

 432

 5432

♣ A73

♠ J1092

 AQ6

 KQJ9

♣ 65

♠ Q65

 J10987

 10876

♣ K

♠ K43

 K5

 A

♣ QJ109842

South to make five clubs.  West leads the K.

Successful solvers:  Jean-Marc Bihl, Steve Bloom, Bülent İyidoğan, Abby Chiu, Leigh Matheson, Radu Mihai, Sebastian Nowacki, Dick Yuen, Dyah Yulianto, Wim van der Zijden   Tables

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Solution

South wins the A, leads the ♣Q to the ♣A, ruffs a diamond high (West unblocking an honour), leads the ♣4 to the ♣7, ruffs another diamond high (West unblocking another honour), leads the ♣2 to the ♣3 (West discarding a high spade), and ruffs the last diamond.  South then cashes the last club in this position:

♠ A87

 432

 none

♣ none

♠ J102

 AQ6

 none

♣ none

♠ Q65

 J109

 none

♣ none

♠ K43

 K5

 none

♣ 8

A.      If West discards a heart, North discards a spade.  If East too discards a heart, South exits with a heart, wins the spade return with the ♠K, and exits with another heart, winning the last two tricks with the ♠A and the long heart.  So East discards a spade.  Declarer now cashes ♠A and ♠K.  If West unblocks both his remaining honours, South makes the ♠4;  otherwise West is thrown in with the third spade and is forced to lead to the K.

B.      If West discards a spade (an honour is best for the moment), North discards a heart, as must East.  South leads a low spade to the ♠A and returns a spade from North.  If West’s last spade is the ♠2, declarer makes a third spade by finessing through East’s ♠Q, so West does better to retain an honour.  Now if East plays the ♠Q on the second spade, South wins, crashing West’s honour, and makes a further trick with North’s ♠8; and if instead East plays low, the trick is ducked to West.  West must return a heart and declarer will make both major suit kings.

Trap: If declarer leads a low trump to the ♣A and proceeds to ruff only two diamonds, accurate defence will defeat him.  West continues to unblock in diamonds and discards two spades and then a heart on the clubs, while East discards hearts and retains the 10.

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, 2014
Date last modified: 11 March, 2017