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Gib CC:jump raise is weak or strong?

#1 User is offline   lycier 

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Posted 2014-April-08, 03:07



After my takeout double,Gib W jump raise to 4♣,is it preemptive or strong forcing?
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#2 User is offline   barmar 

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Posted 2014-April-08, 14:06

It's supposed to be any hand with a 10-card fit that isn't strong enough to cue bid 2♥.

However, it uses simulations to decide whether to cue bid or bid 4♣. If you use the basic bots, which have simulations disabled, it bids 4♣ with any strength. If you had been playing with advanced robots, it would have bid 2♥ instead.

#3 User is offline   Bbradley62 

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Posted 2014-April-08, 16:12

If advanced GIB holds a hand such that he actually does bid 4♣, does his explanation limit his hand to whatever the 2♥ threshold is?
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#4 User is offline   1eyedjack 

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Posted 2014-April-08, 21:50

I thought that standard meaning of X was penalties.
Psych (pron. saik): A gross and deliberate misstatement of honour strength and/or suit length. Expressly permitted under Law 73E but forbidden contrary to that law by Acol club tourneys.

Psyche (pron. sahy-kee): The human soul, spirit or mind (derived, personification thereof, beloved of Eros, Greek myth).
Masterminding (pron. mPosted ImagesPosted ImagetPosted Imager-mPosted ImagendPosted Imageing) tr. v. - Any bid made by bridge player with which partner disagrees.

"Gentlemen, when the barrage lifts." 9th battalion, King's own Yorkshire light infantry,
2000 years earlier: "morituri te salutant"

"I will be with you, whatever". Blair to Bush, precursor to invasion of Iraq
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#5 User is offline   barmar 

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Posted 2014-April-09, 09:44

View PostBbradley62, on 2014-April-08, 16:12, said:

If advanced GIB holds a hand such that he actually does bid 4♣, does his explanation limit his hand to whatever the 2♥ threshold is?

Explanations are the same for basic and advanced GIB, they both just use the explanation associated with the bid they actually make. Simulations are used to select a bid other than the book bid. When that happens, the explanation is the one that goes with that alternate bid; in effect, it's deciding that its hand will play as if it has what that bid shows.

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