October 5, 2026

When to Duck

Andrew:

When to duck

 

A defender who can anticipate how the declarer is going to play a hand is a dangerous defender indeed. Accurate anticipation is in part a product of experience and intuition, but there are certain situations that can easily be learnt. For example if declarer has a repeatable finessing position and he takes a winning finesse, he is sure to want to repeat the finesse. Look at the ♦s on this week’s deal.

South  Deals
None Vul
♠ A 8 6
♥ 7 5
♦ A Q J 4 2
♣ J 6 5
♠ J 9 4 2
♥ J 10 9 8
♦ 9 7
♣ A 9 4
N
W   E
S
♠ 10 7
♥ 6 4 3 2
♦ K 10 8 3
♣ K 10 3
 
♠ K Q 5 3
♥ A K Q
♦ 6 5
♣ Q 8 7 2
East South West North
  1 ♠ Pass 2 ♦
Pass 2 NT Pass 3 ♠
Pass 3 NT Pass Pass
Pass

 

Declarer won West’s ♥ J lead with ♥ Q and led ♦ 5 to dummy’s ♦ J. Say East wins ♦ K – and returns ♥ 3. Declarer wins ♥ K, plays to dummy’s ♦ Q, cashes ♦ A, and concedes ♦ 2 to East’s ♦ 10. East plays ♥ 6 to declarer’s ♥ A and declarer crosses to ♠ A, cashes ♦ 4, then returns to ♠ KQ. Nine tricks.
But, anticipating that declarer would repeat the ♦ finesse, East (smoothly) ducked ♦ J at trick two. Declarer crossed back to his ♠ Q and led ♦ 6 to ♦ Q. This time East won ♦ K – and led ♥ 3. Declarer won ♥ K, crossed to ♠ A, and cashed ♦ A hoping for an even split. West discarded a ♣ so dummy’s ♦s were dead (for the lack of an entry to return to them after conceding the fourth round). Declarer was left hoping that the missing ♠s were split 3-3. He cashed ♠ K then ♠ Q but, when East discarded a ♣ on ♠ Q, was unable to make any more tricks apart from ♥ A. He was one down.

ANDREW’S TIP: As a defender, duck when declarer takes a repeatable finesse.