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The bug that was, then wasn't, then partially was

#1 User is offline   smerriman 

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Posted 2022-November-07, 19:02


West's heart plays at trick 2 and 3 look ludicrous, and I figured was surely an Argine bug.

But when I ran this through a double dummy sim, overtaking the king only cost a trick on 2 out of 500 deals, but gained on 55 occasions, so is "correct" according to double dummy.

But the gain only occurs when you have a killing switch.

After you've overtaken with the king, double dummy analysis tells you a heart continuation works more often than a switch.

So the overtake ended up being a no-win play after all, but not one that a robot can foresee.

The perils of double dummy analysis.
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