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What is GIB up to here?

#1 User is offline   pescetom 

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Posted 2020-November-10, 11:58

I can imagine that taking 11 tricks with cross-ruffs is not simple for a robot, but not why GIB decides to start by losing the first trick in this hand.
Everyone has pretty much what they said, and the hearts are an open book despite the K lead.
Can anyone enlighten me?
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#2 User is offline   smerriman 

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Posted 2020-November-10, 19:11

Change North's 6 of diamonds to the 6 of clubs and (after it decides Ace / low heart from dummy are equals) discarding is actually better double dummy:



I think GIB simulates a much smaller number of deals than people expect, so there's always a chance most of the hands it simulated gave equal results and the others were non-existent or balanced out the wrong way.
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#3 User is offline   pescetom 

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Posted 2020-November-13, 08:00

View Postsmerriman, on 2020-November-10, 19:11, said:

Change North's 6 of diamonds to the 6 of clubs and (after it decides Ace / low heart from dummy are equals) discarding is actually better double dummy:

I think GIB simulates a much smaller number of deals than people expect, so there's always a chance most of the hands it simulated gave equal results and the others were non-existent or balanced out the wrong way.


Good point, thanks.
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