[lycier]

Example Hand-1

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Example Hand-2

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I think this is a incomplete convention if Gib play superaccept and worthless doubleton after Jacoby transfer.
Now I suggest its following methods in this convention

For example:
1NT--2♦
?

2♥=exact 3-card ♥ support
2NT=4333 maximum hand
2♠,3♣,3♦=superaccept with worthless doubleton ,4-card♥ and maximum hand
3♥=4-card ♥ support,minimum hand

[Antrax]

Hand 1 is not a superaccept of a spade transfer.

[Bbradley62]

lycier, on 2014-August-01, 22:16, said:

Now I suggest its following methods in this convention

For example:
1NT--2♦
?

2♥=exact 3-card ♥ support
2NT=4333 maximum hand
2♠,3♣,3♦=superaccept with worthless doubleton ,4-card♥ and maximum hand
3♥=4-card ♥ support,minimum hand

And with only 2-card support?

GIB has three categories after partner's Jacoby xfer: (1) super-accept; (2) accepts invites; and (3) declines invite. Super-accept requires both 17HCP and 4-card support. Neither of these hands meets the requirements for super-accept.

Edit: And, I think GIB shows any doubleton, not just a "worthless" doubleton.

This post has been edited by Bbradley62: 2014-August-02, 09:28

[1eyedjack]

As I read the OP, he was not suggesting that the hands should superaccept, but was complaining that the explanation of the simple accept included superaccept hands.

[BillHiggin]

The GIB system notes do not go into detail on super accepts.
My severely age restricted memory (i.e. too much age = not so much memory) seems to recall:
1) GIB never super accepts with 4-3-3-3 shape
2) GIB shows the doubleton except for the retransfer suit which it shows by a jump accept. (here the memory may be failing me)
3) I do not recall seeing a 2N super accept.

IMHO, GIB is LOTT correct in its refusal to super accept with 4-3-3-3 shape. See the last chapter of Larry Cohen's book - To Bid or Not To Bid

[Bbradley62]

1eyedjack, on 2014-August-02, 07:09, said:

As I read the OP, he was not suggesting that the hands should superaccept, but was complaining that the explanation of the simple accept included superaccept hands.

I read OP differently than you do, but either way, that complaint would be incorrect. GIB would decline to superaccept because he lacks either 4-card support or 17HCP. Given GIB's style of "least common denominator" notation (Barmar's term), the description of the transferred-to bid must be "2-5M; 15-17HCP" because it must include possible actual holdings of "5M; 15HCP" and "2M; 17HCP".

[Bbradley62]

BillHiggin, on 2014-August-02, 08:12, said:

The GIB system notes do not go into detail on super accepts.
My severely age restricted memory (i.e. too much age = not so much memory) seems to recall:
1) GIB never super accepts with 4-3-3-3 shape
2) GIB shows the doubleton except for the retransfer suit which it shows by a jump accept. (here the memory may be failing me)
3) I do not recall seeing a 2N super accept.

IMHO, GIB is LOTT correct in its refusal to super accept with 4-3-3-3 shape. See the last chapter of Larry Cohen's book - To Bid or Not To Bid

I believe GIB uses 2N to show the doubleton in the retransfer suit. Sorry, you are correct about the jump.

georgi, on 2012-June-27, 15:16, said:

... The super accepts shows ... if you bid NT it shows max 4333 hand with 4 cards in the transferred major.

[Bbradley62]

Based on Jack's comment, I'll add this hand...

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The explanation of 3♥ does incorrectly include superaccept hands; if South has 17HCP, as the description stipulates, he should have exactly 3 hearts. I think Barry has previously confirmed that GIB superaccepts and understands supperacceptances properly but doesn't exclude such hands from descriptions of future bids.

[lycier]

Complaining?
My answer is no,this is a way of discussion.
Complaining is not to solve the problem,hoping that BBO can improve Gib's functions through my feedback.
Actually Gib is making stronger and stronger.