Oren's Double Dummy Challenge #22***

The rules are simple. You get the contract and the lead. You may look at all cards and play accordingly (you are always South). However, the defense can do the same, and they never make mistakes. You must find a way to make the contract against any defense.

Oren's Double Dummy Challenge - 22***

You are playing 6♣. West leads the ♣3. You must make your contract against any defense. Note that whenever West wins a tricks, he continues with another club. Good luck!
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*** Difficulty level: hard.


















Solution:


Win in dummy, finesse hearts to the ♥Q, play the ♠A and continue with diamonds. If West allows you to win, continue by ruffing a spade, then play another diamond . Say West takes the ♦A and plays another club - Win in dummy again, ruff spade, play diamonds to dummy's ♦K and ruff another spade. Continue now with the ♥A and a heart ruff to reach this position:



Play another spade and ruff it with the ♣A. West is fixed: If he discards the ♦J - Continue with the ♦10 . If West discards again - Throw the last spade from dummy, and the ♣K is high. If he ruffs - Overruff with dummy's ♣K and the ♠Q is high. If West discards the ♥J - Continue with the ♥9. If West discards again - Throw the last spade from dummy and the ♣K is high. If he ruffs - Over ruff with dummy's ♣K and the ♠Q is high. If West decides to under ruff - Dummy is high.

Well done to everyone who solved the problem!