Double Dummy Corner

 

Competition Problem 27

composed by Hugh Darwen
presented for solving in May, 2007

 

DR3

♠ 432

 Q

 J9543

♣ 5432

♠ KQJ5

 432

 none

♣ KJ10987

♠ 10876

 J765

 A876

♣ 6

♠ A9

 AK1098

 KQ102

♣ AQ

What lead by West defeats four hearts?  How does South make four hearts against any other lead?

Successful solvers:  Steve Bloom, Ian Budden, Jesper Dall, Serhat Erden, Mauro Fiorentini, Mike Hou, Danil de Lind van Wijngaarden, Pengcheng Wu, Dick Yuen, Wim van der Zijden

Promotion:  Steve Bloom is promoted to Expert Problemist, with 103 master points.

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Solution

To defeat the contract, West must lead the 5!

If West instead leads the K, South ducks, wins the spade continuation, plays a heart to North, a club back to hand, and the A-K, North discarding clubs.  The K-Q must be allowed to hold, as must the third diamond, taken by North, whereupon South ruffs a spade and exits with the Q.  South's last trump wins a trick en passant.

If West leads a heart, North wins and leads a spade.  To prevent the above line, East must rise with the 10, forcing South's A.  South plays as above anyway

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, 2007

Date last modified: 11 March, 2017