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Double in competitive auction

#1 User is offline   Bbradley62 

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Posted 2015-July-18, 17:43

Is there a conventional purpose to North's double?

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#2 User is offline   Vampyr 

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Posted 2015-July-18, 20:50

Looks like penalties to me.
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#3 User is offline   1eyedjack 

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Posted 2015-July-18, 23:10

Why would anyone want to show precisely doubleton club? I suppose it could be useful info but seems so nonstandard as to run counter to normal gib policy
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#4 User is offline   steve2005 

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Posted 2015-July-19, 07:23

Gib sprung a sprocket- 2♠ is clear has a fit. Penalty X?! probably +1 unless south has big hand
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#5 User is offline   Stephen Tu 

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Posted 2015-July-19, 08:25

View Post1eyedjack, on 2015-July-18, 23:10, said:

Why would anyone want to show precisely doubleton club? I suppose it could be useful info but seems so nonstandard as to run counter to normal gib policy


"Counter to normal bridge", but I see complaints here about GIB making "exactly 2 card" doubles a lot, so maybe it is normal gib policy. They make zero sense to me. The only time I can only see an exactly 2 card double being reasonable is a strong NT/2nt opener making a takeout double after competition. In all other cases, the double ought to be 2- (2 or fewer), takeout, or 4+ (3+?), penalty. I think the developers ought to search the rule database if they can, look for doubles showing exactly 2 cards, and fix these.
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#6 User is offline   lycier 

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Posted 2015-July-19, 10:26

View PostBbradley62, on 2015-July-18, 17:43, said:

Is there a conventional purpose to North's double?



Of course,there is a conventional purpose to North doubling for sure.
Usually,responder's double is able to give opener an option of doubling for penalty,or cooperative double at least.
For this hand,North's double should usually show 9-10 hcp with length in one or both of oppenent's suits,and responder have many defensive tricks in opp's suits at least enough to beat opponent's contract,never show exact 2-card ♣.so opener should pass after responder's double.
I have to say this double is very ridiculous.

Any ideas?
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#7 User is offline   lycier 

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Posted 2015-July-19, 10:41

I think this topic is very important for Gib policy,and in fact there is a clear definition on responder doubling after unusual notrump overcall.
The developers would better think it over.
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#8 User is offline   iandayre 

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Posted 2015-July-19, 15:44

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