Double Dummy Corner

Competition Problem 6

composed by Hugh Darwen
presented for solving in August 2005

 DR8 ♠ K62 ♥ 1074 ♦ Q832 ♣ 865 ♠ Q43 ♥ 86 ♦ AK7654 ♣ A7 ♠ A10 ♥ KJ32 ♦ J109 ♣ J932 ♠ J9875 ♥ AQ95 ♦ none ♣ KQ104

Successful solver (8 DD master points to him):  Jean-Marc Bihl (from a very low entry)

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Solution

South ruffs with a middle trump and leads ♣K to West's ♣A.

A.      If West returns a club, it is covered all round and then South leads the ♠J.  To make the club ruff count, as it were, West must play the ♠Q, but North ducks.  A spade to East's ♠A allows the club ruff to be taken, but West is now endplayed—a low diamond return gives away a trick and an entry to North, a high diamond allows both Q and 8 to score, and a heart away from the 8 gives all four heart tricks to declarer.

B.       If West returns a low diamond—a high one would again give away two tricks—North wins with Q and South must be careful to discard a club, not a heart.  North continues with the 10 to J and Q (or 7 to 2 and 9) and this time East's trump entry must be attacked before West.  South therefore leads a middle spade to North's K and East's A.  East returns a diamond, ruffed by South's remaining middle trump.  Now declarer cashes the Q before leading the J.

1.       If West wins and leads another trump to North's ♠6, East is forced to discard a club.  North leads the 7 to South's 9 (or 10 to J and Q) and then East is thrown in with a club to lead into South's A5 tenace.

2.       If West wins and returns a top diamond, East and South both discard clubs.  Now North's trump can safely take care of a further diamond lead, whereas a trump switch will squeeze East in hearts and clubs.

3.       If West ducks, South loses a club to East and, whatever the return, West can make no more than the 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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