Double Dummy Corner

Competition Problem 25

composed by Hugh Darwen
presented for solving in March, 2007

 DR4 ♠ 432 ♥ 9862 ♦ K972 ♣ 32 ♠ 76 ♥ KQ10 ♦ Q83 ♣ Q10986 ♠ QJ98 ♥ J7543 ♦ A4 ♣ 75 ♠ AK105 ♥ A ♦ J1065 ♣ AKJ4

South to make five diamonds.  West leads the K.

Successful solvers:  Jean-Marc Bihl, Steve Bloom, Ian Budden, Wim van der Zijden.

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Solution

At trick 2, South leads a low diamond, North playing the 7 unless a higher card is needed to beat West's card.  East does best to win and lead the 5, taken by South, who leads the other low diamond, North again winning as cheaply as possible.  West preserves the Q otherwise North gets two club ruffs.  A spade to the J and K is followed by a third trump, a spade finesse and two more rounds of spades, North ruffing.  West must keep three clubs and so cannot have more than one heart (the 10).  North now leads the 9 (the 6 does equally well if West still has a heart), on which East must play the J, either to prevent West from being endplayed immediately or, if West has no more hearts, to prevent the 9 from winning.  South ruffs and exits with the 4.  If West plays the 6, East is endplayed, otherwise West is.

If East returns a heart at trick 3, South has a choice between ruffing high and discarding a club.  In the former case a club is given up at some stage in the proceedings and in either case play ends in a major suit squeeze against East.

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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