Bridge Problem 4: Answer North 7632 KQ32 J54 53 West J10985 104 A9 9874 East KQ J987 Q862 KJ6 South A4 A65 K1073 AQ102 Dealer: EastVul: North-South E S W N 1NT¹ DBL 2 DBL P 2NT P 3NT P P ¹ Weak, 12-14 HCP Opening lead: J On the bidding, West has five spades; from the opening lead East can be placed with the doubleton KQ, so the suit is blocked if South takes the first trick with the ace. West's entry -- the ace of diamonds -- must be knocked out before the spades can be unblocked, therefore at trick two South must lead the K. If West ducks, South continues diamonds. Declarer now cannnot be prevented from scoring three hearts, a spade, two diamonds, and three clubs. Declarer can lead clubs from dummy twice, using hearts as entries; East will have to lead diamonds at the end after taking the Q. For example, the play might go: A, K taken by the A, spade to the Q, heart to the K, finesse the 10, heart to the Q, finesse the club Q, A, A, low to the J; East can take the fourth heart but must lead diamonds at the finish. (If East cashes the Q at trick four, declarer has the two needed diamond tricks, plus two heart entries to finesse in clubs.) If declarer wastes an entry to dummy at trick two to lead diamonds, there won't be enough entries to get five minor suit winners. For example, West can take the 10 with the A, play a spade to East, who can exit with a heart. Say declarer wins in dummy, finesses clubs, cashes the A, and plays a low diamond to the J. East wins the Q, cashes the fourth heart, and exits in clubs. Declarer can take two more clubs, but must lost a diamond at the end.