Double Dummy Corner

Competition Problem 11

composed by J-M. Maréchal
presented for solving in January, 2006

 DR3 ♠ 5432 ♥ 102 ♦ A432 ♣ AK2 ♠ KQJ ♥ AJ9876 ♦ K87 ♣ 6 ♠ 109876 ♥ K5 ♦ J ♣ J10987 ♠ A ♥ Q43 ♦ Q10965 ♣ Q543

South to make five diamonds.  West leads the ♣6.

Successful solvers:  Robin Adey, Bob Bignall, Jean-Marc Bihl, Steve Bloom, Ian Budden, Simon Cheung, Helge Leonhardsen, Derek Lu, Bircan Öztürk, Andrew Prothero, Wim van der Zijden

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Solution

North wins and leads a spade to South's ♠A.  Diamonds are led from the top until West covers, when North wins and leads a spade for South to ruff.  Any remaining trumps are drawn and then South leads a low heart.

A.      If West ducks, North's 10 forces the K.  North wins the club return and South ruffs a spade before exiting to West on a heart.  North ruffs the next heart, which squeezes East in the black suits.

B.      If West wins with the J, North plays low.  South ruffs the spade continuation and leads a club to North, whose last trump triple-squeezes East before South.  A black suit discard is immediately fatal, so East discards the K.  South throws a club and now North's 10 is good enough to knock out the A and set up South's Q.

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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