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Suspected bidding database or algorithm bug

#1 User is offline   mikewp 

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Posted 2017-July-17, 18:27

I have played with robots quite a lot and usually find their bidding reasonable. This is my first post to this forum, so hope this is appropriate content. If not, apologies in advance.

A hand come up today that I think shows a bug in the bidding database or algorithm.

In 4th seat with 4 Q75 AK765 AJ83, the auction was:

P P P 1D
P 1H 1NT X (sandwich NT and support X)
2S P P 3C

GIB explains 3C in this auction as showing 5+D, 3H, 5+S, 21- HCP. I think it should be 5+D, 3H, 4+C, 21- HCP. I didn't check before bidding 3C and the rest of the auction is not pretty. I realize my 3C is pushy but I didn't want to sell out with a singleton S, though double might have been a better bid.

http://tinyurl.com/y8sazzdx
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#2 User is offline   Stephen Tu 

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Posted 2017-July-17, 20:42

3C shouldn't show spades, but with your RHO showing clubs IMO it shouldn't show a club suit either. Probably it should be some sort of strongish 6+ diamond hand.
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#3 User is offline   steve2005 

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Posted 2017-July-17, 22:18

Yes 3 is bidding opponents suit. So will definitely be showing much stronger hand than you have so things will go bad after that.
To give you 5 there is some flaw, obviously you open 1 then but I don't see any reason to give you any amount of spades.
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