Competition Problem 39
composed by Hugh Darwen
presented for solving in May, 2008
East is on lead at no-trumps.
North-South to make 7 tricks.
Successful solvers: Steve Bloom, Rajeswar Tewari (both of whom suggested DR6).
A. If East leads the ♦K, West plays high and North wins. Two rounds of clubs follow, setting up the ♣10. North discards a heart or a diamond. East does best to return a low heart to West, who exits on a spade. North must rise with the ♠A and play two more rounds of spades, South discarding hearts. West exits on a club but is put back on play with a diamond and has to lead into South's diamond tenace.
(a) If East returns a low heart to West, who exits on a spade, North must rise with the ♠A and play two more rounds of spades, South discarding hearts. West exits on a club but is put back on play with a diamond and has to lead into South's diamond tenace.
(b) If East returns a spade, North wins with the ♠A, cashes the ♠Q, and exits on a heart. East must allow this to run to West's ♥K, effectively transposing to line (a). Trap: If North exits on a spade instead of a heart, South's forced heart discards allow East to overtake West's ♥K and lead a diamond.
B. If East leads a heart, West must return a diamond. North plays low and East wins to return the suit. South comes to hand on a club and cashes the ♦Q, North discarding a spade.
(a) If West has played the ♦2, South exits on a low club, wins the spade return, cashes the ♣10, and throws West in with a diamond. North discards hearts and makes two spade tricks.
(b) If West's last diamond is the ♦2, South exits on the ♣10, wins the spade return, cashes the ♦7, and throws West in with a club, with the same effect as in (a).
If the ♦8 and ♦6 are interchanged, East leads the ♦K. The ending of line A no longer works.
See the solution to Competition Problem #4 for the recommended tabular format if you prefer not to write in English prose.
© Hugh Darwen, 2007
Date last modified: 11 March, 2017