Double Dummy Corner

Competition Problem 98b

composed by Leslie Cass
presented for solving in April 2013

 DR3 ♠ A ♥ J52 ♦ A7 ♣ 32 ♠ 3 ♥ 986 ♦ K6 ♣ K4 ♠ 2 ♥ A73 ♦ 54 ♣ J6 ♠ none ♥ Q10 ♦ Q ♣ AQ1097

With spades trumps and West to lead, East-West to take three tricks.

Successful solvers:  Steve Bloom, Ian Budden, Leigh Matheson, Sebastian Nowacki, Radu Mihai, Wim van der Zijden, most of whom thought this was slightly harder than 98a (but not quite hard enough for DR4, I thought).

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Solution

West must lead the 6!  If South wins with the Q and leads the Q, West drops the 8.  East wins and returns a heart, West dropping the 9.  If South wins and cashes the A, West drops the K and East the J!  East ruffs the third round of clubs, on which North is squeezed.  Assuming North discards a red card, East next leads that suit to force the A and thus promote West’s 3.  If North overtakes the 10, the defence must come to a heart and a club.

Traps: If West starts with a high heart to the A and Q and East returns a diamond to the Q, South cashes the A and 10 in that order (otherwise West unblocks in clubs as before), then throws West in on a club so that North takes the last three tricks.  If East instead returns a heart at trick 2, South wins and North overtakes the Q when West plays low, cashes the A and Q, then throws West in on a diamond.

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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