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Not fit for purpose

#1 User is offline   pescetom 

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Posted 2026-February-11, 16:07

Not surprisingly, this was a bottom.

Just why did my costly and AI enhanced GIBBO stop in 6 here ?

I cannot see how a simulation or any reasonable algorithm could suggest that a trick might be lost in 7NT, given the information received during the auction.
I can imagine that GiB is rigidly locked into playing in hearts and cannot see the NT alternative like a bridge player would. But even then any reasonable number of simulations should get it over fear of the grand.


Maybe I am missing something.
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#2 User is offline   gszes 

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Posted 2026-February-11, 21:32

I was thinking about how dumb the bot was and I came up with a plausible (barely) solution. The bot started out by assuming your 0-3 showed 3 and proceeded to queen ask. Your 5n
was correct opposite any sane partner but the bot is ummm not always that. It seems possible that it read the 5n as a warning you had the Q and zero keys and a 6h bid (in its "mind" would have said no kings and verified 3 keys.
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#3 User is offline   benellis58 

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Posted 2026-February-11, 21:42

The straightforward answer, as usual, Pescetom, is that the GIBBO robots are hopelessly incompetent at bridge. The hand you provided is perfect evidence.
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#4 User is offline   pescetom 

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Posted Yesterday, 07:25

 gszes, on 2026-February-11, 21:32, said:

I was thinking about how dumb the bot was and I came up with a plausible (barely) solution. The bot started out by assuming your 0-3 showed 3 and proceeded to queen ask. Your 5n
was correct opposite any sane partner but the bot is ummm not always that. It seems possible that it read the 5n as a warning you had the Q and zero keys and a 6h bid (in its "mind" would have said no kings and verified 3 keys.

Yes I guess that is possible. Or perhaps more plausible, that it plays 5NT as all three kings and 6H as no king (which would be ironic, as I too prefer this) and concluded we were off the rails after looking at clubs King. Although both hypotheses contrast with the apparently normal explanation proferred for 5NT.
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#5 User is offline   thepossum 

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Posted Yesterday, 16:32

That is rather sad indeed
How many tricks does it need
It clearly is not simulating anything - and I agree with above sadly plausible hypothesis

EDIT I have put it through another bidding engine, tried coaxing various auctions but it could not get past 6 spades or hearts. Methinks there could be a market out there. Basic test. 15(?) top tricks DD -> 7NT. I sometimes miscount myself. Is it 15?
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