Competition Problem 158b
South to make three spades. West leads the ♥K.
Successful solvers: Steve Bloom, Ian Budden, Ed Lawhon, Radu Mihai, Sebastian Nowacki, A.V. Ramana Rao, Zoran Sibinović, Rajeswar Tewari, Andries van der Vecht, Wim van der Zijden
The ♥K is allowed to hold and West does best to switch to a trump. Declarer wins in hand and leads a club, letting West hold the trick.
A. If West leads another spade, South wins, leads a club to the ♣A, ruffs a club, leads a heart to the ♥A and ruffs a heart. West must overruff and lead a trump, to avoid being thrown in via the ♠A and another spade. North wins and plays out the last trump. This subjects West to a one-suit squeeze in diamonds. West either discards the ♦2 and is endplayed by a diamond ducked round, or discards the ♦10 and is endplayed when South just covers Eastís card, winning the last two tricks with the ♦AQ or ♦A8.
B. If West leads the ♣K, North wins with the ♣A and South ruffs a club. After the ♠K, the ♥A and a heart ruff (or ♥A, heart ruffed and overruffed, spade to the ♠K) the position is as in A.
C. If West leads the ♥Q, North wins with the ♥A and South ruffs a heart. Again West must overruff, but in some order the ♠K, ♣A, club ruff and a spade to the ♠A give the same position as before.
See the solution to Competition Problem #4 for the recommended tabular format if you prefer not to write in English prose.
Hugh Darwen, 2018