Double Dummy Corner

 

Competition Problem 138b

by Paolo Treossi and Hugh Darwen (after David Solis-Cohen Jr)
presented for solving in August 2016

DR3

♠ J

 AQJ82

 A432

♣ K32

♠ 76543

 106543

 Q

♣ A4

♠ K109

 K

 J10987

♣ QJ109

♠ AQ82

 97

 K65

♣ 8765

South to make five no-trumps.  West leads the 4.

Successful solvers: Steve Bloom, Ian Budden, Radu Mihai, Sebastian Nowacki, Zoran Sibinović, F.Y. Sing, Andries van der Vegt, Dick Yuen.       Tables

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Solution

North wins with the A and South drops the 9.  Declarer comes to hand on the K and leads a club.  The next four tricks are won by the A, K, the Q overtaking the J, and the 8 overtaking South’s 7, the order depending on West’s play at trick three.  North now plays out the hearts, the last one losing to West.  South keeps A8, 6, 8 and wins the spade return with the A.  East has been triple-squeezed, such that either North’s A43 will all score of one of South’s black suit 8’s is a winner.  In the latter case that winning 8 squeezes East again.

The original problem by David Solis-Cohen Jr. was number 195 in George Coffin’s Sure Tricks (1948):

♠ AQ92

 106

 K75

♣ 8743

♠ K106

 8

 J10843

♣ K965

♠ 87543

 J9543

 Q

♣ J10

♠ J

 AKQ72

 A962

♣ AQ2

South to make five no-trumps.  West leads the 4.

The layout has been rotated in our revision to make the heart lead realistic.

The published solution was K, 10 to J and Q, then the 2 from South.  It was assumed that East would win this and return a club, but East can either return a spade or let North’s 6 win.  Both of these defences defeat the contract.  

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, 2016
Date last modified: 11 March, 2017