Double Dummy Corner

 

Competition Problem 163b

composed by Paolo Treossi (after Luigi Caroli)
presented for solving in October 2018

DR4

♠ A76

 QJ10

 K10732

♣ 65

♠ K982

 K8765432

 9

♣ none

♠ none

 A9

 QJ54

♣ AQJ10987

♠ QJ10543

 none

 A86

♣ K432

South to make four spades.  West leads the 9.  What lead would defeat the contract?

Successful solvers:  Ed Lawhon, Sebastian Nowacki, Zoran Sibinović, Rajeswar Tewari, Andries van der Vegt, Dick Yuen, Wim van der Zijden

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Solution

North covers with the 10 and South’s A captures East’s J.  The Q is covered (best) by West and won by North’s A, whereupon South ruffs a heart.  Three more rounds of spades follow, putting West on play.  On the first three spades East discards clubs.  On the fourth North discards a heart and East then does best to throw the A.  With only hearts left, West leads the K, ruffed by South, who continues with the 8, North playing low.  East was squeezed on the K.

A.      If East discarded a diamond and must therefore win with the Q, North will make three diamond tricks and South will come to the K one way or another.

B.      If East discarded a club and ducks the diamond, South exits on a low club.  East can make two club tricks but must then either give North three diamond tricks or South two clubs to go with the K.

The contract goes down if West leads the 9 or 8.  If West leads the 2, North wins the trick and advances the 10, covered by East and won by South’s A.  The contract cane then be made either by ducking a diamond or by playing a spade to the A, ruffing a heart and throwing West in as above.

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, 2018
Date last modified: 11 November, 2018