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Scoring: IMP
Our bidding:
1♥-2♠ * (limit raise based on shortness)
2NT-3♦
3♠-4♣
4NT-5♥
6♥-pass
After finding out partner has in fact the perfect hand, you bid the 22 HCP slam. Opponent leads his lonely trumps and you start with ♦A + ♦ ruff, ♣K + ♦ ruff getting the bad news.
The contract looks doomed at this point, but not quite, instead of ruffing a club in hand to ruff another diamond wich ensures that you are 1 off, you should try and play a spade now.
Defenders will take it and play a trump preventing you from ruffing more than 2 diamonds, but not a problem, now you ruff a spade, and run your remaining trumps squeezing East. You score 5 hearts, 1, diamond, 2 ruffs, 3 cubs and the squeeze trick for a total of 12.
Wonderful, is it?, no!, West can prevent this by discarding a club on the tird round of diamonds, and then Rejecting to draw trumps, but instead just play a club! (letting partner win the spade also works). Now declarer will have 12 tricks, but he is unable to cash ♣A because you will ruff the trick.
The best line (if opponents are very good, wich is not always teh case) is drawing trumps yourself and pray East has ♣Qxx or ♣Qx.
