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Short vs Regular NT

#1 User is offline   dariab 

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Posted 2012-January-07, 17:09

How does GIB know the difference when his S-partner opens short 1 NT vs regular (15-17pts) NT? I've seen some very good players opening 1NT short(14 pts) and GIB continued the auction.
The same goes for some players opening 2NT with only 18 pts - and GIB takes them to game. I am very intrigued by that play. How does GIB know which is which and when?
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#2 User is offline   georgi 

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Posted 2012-January-08, 00:45

GIB continuations if any occur, are based on these 1NT,2NT openings values:

1NT - notrump opener. Could have 5M. -- 2-5 ♣; 2-5 ♦; 2-5 ♥; 2-5 ♠; 15-17 HCP; 18- total points
2NT - Two NT opener. Could have 5M. -- 2-5 ♣; 2-5 ♦; 2-5 ♥; 2-5 ♠; 20-21 HCP

GIB can't 'sees' through the cards. If you open with different ranges or shapes, GIB wouldn't be aware and won't change its actions.
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