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Converging on 3NT with GiB

#1 User is offline   pescetom 

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Posted Yesterday, 15:59

I was stumped in this auction.

I'm comfortable with 2NT showing a stopper and limiting strength, but what am I supposed to do now lacking a hearts stopper?
To me 3♣ not only shows some kind of stop but (above all) suggests doubt about hearts.
Clearly GiB is not on the same wavelength as it repeats diamonds and still obstinately defines 3♥ by me as showing, not asking.
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#2 User is offline   smerriman 

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Posted Yesterday, 20:06

If the opponents have bid one or more suits, GIB will only ever care about stoppers in those suits, so I would just have bid 3NT over 2NT.
A better handviewer
Reverse engineering GIB, part 1: A treatise on the insanity of bidding simulations
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#3 User is offline   pescetom 

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Posted Today, 04:26

 smerriman, on 2025-March-08, 20:06, said:

If the opponents have bid one or more suits, GIB will only ever care about stoppers in those suits, so I would just have bid 3NT over 2NT.

I still don't get why after 3C it repeats diamonds in the first place (particularly if diamonds still could be 3 cards, as the description states) rather than bidding 3NT itself.
But in any case, if it won't bid 3NT or 3H itself then surely a subsequent 3H by me should ask rather than show.
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