nige1, on 2012-May-18, 10:26, said:
IMO, that is double-dummy. I think declarer's main chance is a double-squeeze.
If so, after the ♦, he will cash ♠ and cross to ♣A.
The question was how to handle the threatened triple squeeze. If declarer was going to play for a double squeeze, or a black suit squeeze on south, he should have taken the heart hook before running diamonds (actually it would be an attempted compound squeeze on east after the heart hook won).
The fact is after playing on diamonds at trick two-three-four he has destroyed his entry conditions for a double squeeze or a black suit squeeze on east. Let's put back the heart ace in dummy in this four card ending to show you what I mean, including putting the king "onside" so the hook wins. Also had south unblock the heart queen on the diamonds so as not to get locked into his hand if west refuses to cover the heart queen.
mr1303 asks "Partner leads the J of clubs, overtaken by your Q and won by declarer's K. What pitches do you make on the run of the diamonds? If it helps, partner follows to 4 rounds of diamonds and then pitches low spades".
Better not to have overtaken ♣J to improve declarer's chance of misreading the distribution.
Agree with Gnasher: reduce to a singeton ♥K ...
- Hoping that declarer takes the ♥ finesse for three down but also
- Defeating the contract by force when partner can make a ♥ at the end when declarer has e.g. ♠ AJTxx ♥ Q9 ♦ Jx ♣ AKxx