[fuburules3]

http://tinyurl.com/nr6aap5

I also always find it confusing in GIB that both a 3NT opener and bidding 2C and then rebidding 3NT seem to show the same thing.

[Lord Molyb]

I am pretty sure 2♣--> 3NT shows a 5 card suit while 3NT shows none.

[1eyedjack]

We had another hand like this reported a while back. The HCP render it perhaps unlikely that you are off an Ace, but certainly possible, and GIB has RKCB available to check but chooses not to use it.

[gordontd]

1eyedjack, on 2014-September-06, 22:03, said:

We had another hand like this reported a while back. The HCP render it perhaps unlikely that you are off an Ace, but certainly possible, and GIB has RKCB available to check but chooses not to use it.

The hcp make it possible to be missing TWO aces.

[steve2005]

gordontd, on 2014-September-07, 02:38, said:

The hcp make it possible to be missing TWO aces.

Yes, HCP suggests that 7♠ isn't even a consideration

25-27 plus 6 = 31-33 hcp plus a singleton and a doubleton and .♠ length. Gib is counting self as 11+ pts it must be using support points (total points) when bidding 7♠ which might OK, but needs to look at HCPs to determine if off 2 Aces or even AK in one suit.

Find out if 6♠ is possible before bidding a ridiculous 7♠

[Bbradley62]

Maybe it's just me, but I have this funny habit of doubling the opponents when they bid 7 of a suit in which I hold the ace.

[Bbradley62]

Lord Molyb, on 2014-September-06, 21:52, said:

I am pretty sure 2♣--> 3NT shows a 5 card suit while 3NT shows none.

I believe that, in another thread, Georgi said GIB will not open any number of NT with any 5422 shape, but will with 5332. So, this sequence specifically shows some 5422?

[Lord Molyb]

Bbradley62, on 2014-September-07, 12:26, said:

I believe that, in another thread, Georgi said GIB will not open any number of NT with any 5422 shape, but will with 5332. So, this sequence specifically shows some 5422?

based on a few tests, GIB will always do the following with 25-27 balanced:
-Open 3NT with 4333 or 4432
-Open 2♣ and rebid 3NT with a 5 card major and 5332
-Open 3NT with a 5 card minor and 5332
-Open 2♣ and rebid a suit with a 5 card suit and 5422

[Bbradley62]

Lord Molyb, on 2014-September-08, 06:57, said:

based on a few tests, GIB will always do the following with 25-27 balanced:
-Open 3NT with 4333 or 4432
-Open 2♣ and rebid 3NT with a 5 card major and 5332
-Open 3NT with a 5 card minor and 5332
-Open 2♣ and rebid a suit with a 5 card suit and 5422

If this is accurate, then South's sequence shows 5 of a major with no other 4card suit. If that's so, the description should read: 2-3♣; 2-3♦; 2-5♥; 2-5♠; 25-27 HCP. But, GIB's system notes also say that GIB doesn't open 1N with 17HCP and a 5card major, so I wonder if OP's sequence actually shows 25-26HCP (w/5card major) in GIBberish. And I wonder how responder can get opener to name his major.

[1eyedjack]

The whole thing is utter nonsense, of course.