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GIB bug Not sure what it was trying to do here.

#1 User is offline   Cascade 

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Posted 2017-November-28, 02:19

This occurred at a teaching table with GIB sitting east west and me sitting north south.

Hand

Gib cue-bid after pre-empting and its Gib partner passed.

Also I was looking at hands for the auction (3) 4 (4) more generally. I notice as well that when fourth hand bids the Gib preempter doubles very freely.
Wayne Burrows

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Bidding is an estimation of probabilities SJ Simon

#2 User is offline   johnu 

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Posted 2017-November-28, 02:27

GIB East missorted its hand and thought it had the 18+ HCP that 4 supposedly showed. After realizing the misbid and hoping to avoid a doubled slam contract, East quite properly passed the cue bid to keep the bidding low and avoid the penalty double. IMHO, a good recovery by East. Well done.
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#3 User is offline   Cascade 

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Posted 2017-November-28, 02:40

Here is an example of Gib doubling

Double
Wayne Burrows

I believe that the USA currently hold only the World Championship For People Who Still Bid Like Your Auntie Gladys - dburn
dunno how to play 4 card majors - JLOGIC
True but I know Standard American and what better reason could I have for playing Precision? - Hideous Hog
Bidding is an estimation of probabilities SJ Simon

#4 User is offline   nige1 

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Posted 2017-November-28, 08:09


As JohnU points out, the GIBS are using different systems:
GIBEast thinks it's raising preemptively but
GIBWest thinks GibEast is showing 18+ HCP

Again GIBWest thinks that GIBEast has shown a mountain.
If the robots could share and understand the same FD description of their system, then this sort of discrepancy might be avoided.


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#5 User is offline   steve2005 

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Posted 2017-November-28, 10:27

it just shows how ridiculous Gibs defaulting to pass when cant make a decision is.
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#6 User is offline   zhasbeen 

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Posted 2017-November-28, 11:30

View Poststeve2005, on 2017-November-28, 10:27, said:

it just shows how ridiculous Gibs defaulting to pass when cant make a decision is.


So, where are we with all this? Evidently there is no fixing a problem once it is clear that there is one. Will the programmers need to start from scratch, is BBO looking for a new robot, or what? Has anyone heard anything?

Pretty embarrassing for BBO to have this happen at a teaching table, of all places.
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#7 User is offline   jdonn 

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Posted 2017-December-05, 10:49

I am suggesting a new rule where when GIB opens with a preempt, it can't bid again after partner does nothing but raise and/or double the opponents. Maybe there should be exceptions, but I think that would be fine.
Please let me know about any questions or interest or bug reports about GIB.
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#8 User is offline   zhasbeen 

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Posted 2017-December-05, 11:03

View Postjdonn, on 2017-December-05, 10:49, said:

I am suggesting a new rule where when GIB opens with a preempt, it can't bid again after partner does nothing but raise and/or double the opponents. Maybe there should be exceptions, but I think that would be fine.


Sounds like best solution. Keep your mouth shut after making a preempt unless you are asked (that includes doubling)
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#9 User is offline   virgosrock 

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Posted 2017-December-05, 19:27

View Postjdonn, on 2017-December-05, 10:49, said:

I am suggesting a new rule where when GIB opens with a preempt, it can't bid again after partner does nothing but raise and/or double the opponents. Maybe there should be exceptions, but I think that would be fine.

Sounds good. (though I have not encountered GIB bidding again after preempting.

vrock
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