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Gib adjusts its lead. Situational?

#1 User is online   kenberg 

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Posted 2017-December-17, 08:35

From the write-up about the Gib cc:
"When leading from 3 small, it leads top of nothing against NT, low against a suit contract."

Yesterday, against a 4NT contract, Gib led the diamond 2 from 632. But the uncontested auction was
1C 1H
2NT 4NT
Pass

The K is the only missing diamond honor. So maybe I should assume Gib is smart enough to not under-lead a K after this auction? Still, why not the 6?

Anyway, I can take 12 tricks (some did) if I work out the position and it's matchpoints so I need to do it. "Why the 2?" is not a complaint, it's a question.

Earlier in the notes on the cc, it says:
"GIB doesn't interpret your signals or make many inferences from the play, it uses simulations based on the auction."
Is that probably what happened here, or has Gib been re-programmed to lead low from three small at no trump as well as at suits?

I play a lot of pick-up on bbo and I have been thinking that "Gib standard" could be a sensible approach when little has been discussed. So I have been looking a bit at the details as they arise.


http://tinyurl.com/y7qa6o9l
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Ken
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#2 User is offline   steve2005 

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Posted 2017-December-17, 10:03

http://www.bridgebas...es-wrong-again/

somebody posted the same thing recently



Sarcasm is a state of mind
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#3 User is online   kenberg 

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Posted 2017-December-17, 20:33

Thanks. I figured maybe it was simply an adjustment for the strong auction, but it seems as if it is what Gib does.


I am guessing that Gib's programming gets updated and the changes do not always make it into the write-up.
Ken
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#4 User is offline   johnu 

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Posted 2017-December-18, 01:51

View Postkenberg, on 2017-December-17, 20:33, said:

I am guessing that Gib's programming gets updated and the changes do not always make it into the write-up.


The most likely situation is that whoever wrote up the GIB notes got it wrong and nothing was ever corrected.
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#5 User is offline   virgosrock 

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Posted 2017-December-18, 05:54

View Postjohnu, on 2017-December-18, 01:51, said:

The most likely situation is that whoever wrote up the GIB notes got it wrong and nothing was ever corrected.


last 6 months for sure GIBBO has not led middle from 3 small. Not fixing this description in the URL is serious lack of customer (are we non-paying customers ?) service. If same applies to GIBugs gawdhelpus.

vrock
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#6 User is offline   jdonn 

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Posted 2017-December-18, 23:17

I will see what I can do. My preference is to make it just follow the lead conventions, but second choice is to clarify or eliminate that part from the convention card.
Please let me know about any questions or interest or bug reports about GIB.
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#7 User is online   smerriman 

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Posted 2017-December-18, 23:55

View Postjdonn, on 2017-December-18, 23:17, said:

I will see what I can do. My preference is to make it just follow the lead conventions, but second choice is to clarify or eliminate that part from the convention card.

It would be very interesting to see what some of the reasons were for the other exceptions I listed in the thread I linked to, like when it led low from a 64 doubleton once.
Feel free to send me a friend challenge of any format as often as you like. I'll always accept :)
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#8 User is offline   virgosrock 

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Posted 2017-December-19, 11:54

View Postsmerriman, on 2017-December-18, 23:55, said:

It would be very interesting to see what some of the reasons were for the other exceptions I listed in the thread I linked to, like when it led low from a 64 doubleton once.


8 years or so ago GIB used to lead low-hi from doubletons especially in the middle of play rarely on opening leads.
These days for sure it does lead low from T/J/Q x. not always but noticeably enough. Throws partner's defense off.

vrock
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