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Unusual 2NT

#1 User is offline   Bbradley62 

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Posted 2011-November-16, 13:51

Why did West bid 2 instead of 2NT?

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#2 User is offline   georgi 

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Posted 2011-November-16, 15:49

View PostBbradley62, on 2011-November-16, 13:51, said:

Why did West bid 2 instead of 2NT?


Vuln vs Nonevuln makes the requirements a little bit higher. In the reversed situation West would pick 2NT.

#3 User is offline   Bbradley62 

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Posted 2011-November-16, 16:25

GIB's system notes say:
GIB only does Unusual NT with intermediate hands, xx-KQxxxx KQxxx, for example

Since this example hand seems pretty close to the one West actually held, could you please tell us specifically what GIB's requirements are for the bid under various conditions?
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#4 User is offline   georgi 

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Posted 2011-November-16, 16:56

View PostBbradley62, on 2011-November-16, 16:25, said:

GIB's system notes say:
GIB only does Unusual NT with intermediate hands, xx-KQxxxx KQxxx, for example

Since this example hand seems pretty close to the one West actually held, could you please tell us specifically what GIB's requirements are for the bid under various conditions?


One of these both should be corrected as currently GIB has two ranges and no up limit.
In Nonevuln >=12TP
In Vuln >=15TP

In the upper hand it has 14TP which makes 2 in V, and 2NT in NV.

#5 User is offline   cloa513 

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Posted 2011-November-16, 21:29

View Postgeorgi, on 2011-November-16, 16:56, said:

One of these both should be corrected as currently GIB has two ranges and no up limit.
In Nonevuln >=12TP
In Vuln >=15TP

In the upper hand it has 14TP which makes 2 in V, and 2NT in NV.

The upper hand has 15 TP. 11HCP+3(singleton)+1(doubleton) unless you can point at the GIB total point calculator.
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#6 User is offline   Bbradley62 

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Posted 2011-November-16, 22:32

View Postgeorgi, on 2011-November-16, 16:56, said:

One of these both should be corrected as currently GIB has two ranges and no up limit.
In Nonevuln >=12TP
In Vuln >=15TP

In the upper hand it has 14TP which makes 2 in V, and 2NT in NV.

View Postcloa513, on 2011-November-16, 21:29, said:

The upper hand has 15 TP. 11HCP+3(singleton)+1(doubleton) unless you can point at the GIB total point calculator.

====> http://www.bridgebas...ystem_notes.php
Clearly states singleton is 2, not 3, just like virtually every bridge book teaches.
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