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A common but impossible to show hand type can't reliably look for a major fit?

#1 User is offline   manudude03 

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Posted 2017-July-07, 13:37



Over 3C, I moused over my options. Double (my choice in the end) was penalty. 3x would show a strong rebiddable suit, and 4C would show clubs. So it seems there is no way to find a 4-4 major suit fit, which seems quite likely in this auction without risking playing in a 4-3 or even 4-2 fit.
Wayne Somerville
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#2 User is offline   The_Badger 

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Posted 2017-July-07, 13:56

The options are unhelpful, but I wonder if X is penalty on this auction as your robot partner has opened the suit? Swap the ♣ and ♦ around on both the East and South hands, and East now overcalls 3♦ over 1♣. Would X be still penalty, or the eminently more sensible takeout double showing the majors? Maybe someone who plays against the bots regularly will shed light on this possible auction.
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#3 User is offline   manudude03 

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Posted 2017-July-07, 14:46

View PostThe_Badger, on 2017-July-07, 13:56, said:

The options are unhelpful, but I wonder if X is penalty on this auction as your robot partner has opened the suit? Swap the ♣ and ♦ around on both the East and South hands, and East now overcalls 3♦ over 1♣. Would X be still penalty, or the eminently more sensible takeout double showing the majors? Maybe someone who plays against the bots regularly will shed light on this possible auction.


1C-(3D)-X is a negative double, not sure of its exact description but fairly sure it mentions something about 4+S.

As for my double on the actual hand, it says "biddable ♣" in the description, so very much implying penalty.
Wayne Somerville
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#4 User is offline   wanoff 

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Posted 2017-July-07, 15:33

Surely it can't be double for penalty and 4♣ nat.
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#5 User is offline   smerriman 

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Posted 2017-July-07, 15:34

Yep, seems like this is a big problem. When (basic) GIB is south in this situation.. it passes.
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#6 User is offline   manudude03 

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Posted 2017-July-07, 20:50

View Postsmerriman, on 2017-July-07, 15:34, said:

Yep, seems like this is a big problem. When (basic) GIB is south in this situation.. it passes.


I just did a quick test myself. The advanced bots also pass....
Wayne Somerville
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#7 User is offline   neilkaz 

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Posted 2017-July-07, 21:16

Double is penalty here and not negative as in Bergen's Neg X book ?!! Who taught these BOTs to bid?
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#8 User is offline   iandayre 

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Posted 2017-July-09, 14:35

Double should certainly be negative. This should be easy to fix right BBO?
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