Sorry, I feel like I've missed something.. not for the first, nor last, time, I'm sure
But I don't see the problem... at least, not in terms of a technically correct play to set the contract. Maybe there is some form of play that maximizes the chance of declarer blowing a cold contract? If so, it is too subtle for me.
Let's place some cards.
If declarer has Kxx in
♦s, the 3-3 break allows him 9 tricks, and we can do nothing about it. So we assume Kx (stiff K is silly).
Then if declarer is 4=3=2=4, he can knock out a spade, and we can do nothing about it, altho he is going to be worried if his clubs are very bad and we switch.. but what choice does he have?
So we need declarer to be 3=3=2=5
If he holds Qxx AKx Kx Jxxxx, we are dead: we can hardly not hold KQ
♣, and he has no other hope. We wouldn't open on A10x Q10xxx Jxxx K (I hope)
And if he lacks the
♠Q, he knows that we don't have it when we don't cash the AQ now... that wouldn't squeeze partner who would be 4=6 in the minors....
So we are reduced to playing him for Qxx AKx Kx 10xxxx, and I don't see how he can make it. We play a
♥.. what does he do? Partner has an easy black suit pitch. If declarer plays club/club, we play another
♥ and partner reduces to club J, diamond 10xx and a spade, in the 5 card endgame (2 spades, 3 hearts, 1 diamond and 2 clubs have been played.
BTW, surely partner helped me out with count here? I can't tell from the cards given, but it looks as if partner simply played the lowest cards he held.. but udca, standard or?
'one of the great markers of the advance of human kindness is the howls you will hear from the Men of God' Johann Hari
1♥ (P) P (X)
P (2♥) P (2N)
P (3N)
Lead: ♥6.