4th January 2023


This deal is from an EBU online duplicate

 Dealer S
S 9
 NS Vul
H J9
    D AJ1032
    C AQ843
S A62
   
H Q53
 
 square
D Q9864
   
C K6
   

South
West
North
East
1H Pass
2C Pass
2H Pass
4H Pass
Pass Pass


You lead the nine of diamonds against four hearts.
Declarer wins in hand with the king, partner playing the seven.
Declarer now plays the ten of clubs to the king, ace and two.
Declarer now plays the spade off table to partner's queen, which shows a holding of QJ10x(x), the king and your ace.

What do you play now?


Scroll down when you have decided.































You need to stop declarer from ruffing two spades in dummy.
It looks as though declarer has a heart holding headed by the ace and king to justify his opening bid.
If you switch to a low heart, if declarer guesses right and plays the jack then he has one spade ruff, five hearts, two diamonds and two club tricks.
However, if partner has 10xx of hearts a switch to the heart queen will beat the contract as partner will get a heart trick if declarer ruffs a spade with the jack of hearts.





The full deal was


Dealer S
S
9
   
NS Vul
H
J9
   
    D AJ1032
   
    C AQ843
   
S
A62
    S
QJ1074
H
Q53
    H
1076
D
Q9864
    D
75
C
K6
    C
J92
    S
K853
   
    H
AK842
   
    D
K
   
    C
1075
   

 

To make the contract declarer had to duck the spade queen.