A Gib incomplete convention

[lycier]

Example Hand-1

 

[hv=http://www.bridgebase.com/tools/handviewer.html?sn=lycier&s=ST9874HA62DQJT8C5&wn=机器人&w=SQJH9743D752CAT42&nn=机器人&n=SK632HKQTDA64CQJ8&en=机器人&e=SA5HJ85DK93CK9763&d=w&v=b&b=&a=P1N(notrump%20opener.%20Could%20have%205M.%20--%202-5%20%21C%3B%202-5%20%21D%3B%202-5%20%21H%3B%202-5%20%21S%3B%2015-17%20HCP%3B%2018-%20total%20points)P2H(Jacoby%20transfer%20--%205+%20%21S)P2S(Transfer%20completed%20to%20S%20--%202-5%20%21C%3B%202-5%20%21D%3B%202-5%20%21H%3B%202-5%20%21S%3B%2015-17%20HCP%3B%2018-%20total%20points)PPP&p=SAS7SQS6H5H2H4HTC8C9C5C4H8H6H9HKCQCKSTC2S9SJSKS5S2D3S8D2DQD7D4DKC6S4CTCJD8D5DAD9D6C7DJH7DTH3S3C3HQHJHACA]499|350[/hv]

 

Example Hand-2

 

[hv=http://www.bridgebase.com/tools/handviewer.html?sn=lycier&s=SQ95HKQJ93DA5CT65&wn=机器人&w=SJ764H54DQT974CJ8&nn=机器人&n=SAT2HAT76DJ86CAK9&en=机器人&e=SK83H82DK32CQ7432&d=n&v=e&b=&a=1N(notrump%20opener.%20Could%20have%205M.%20--%202-5%20%21C%3B%202-5%20%21D%3B%202-5%20%21H%3B%202-5%20%21S%3B%2015-17%20HCP%3B%2018-%20total%20points)P2D(Jacoby%20transfer%20--%205+%20%21H)P2H(Transfer%20completed%20to%20H%20--%202-5%20%21C%3B%202-5%20%21D%3B%202-5%20%21H%3B%202-5%20%21S%3B%2015-17%20HCP%3B%2018-%20total%20points)P3N(5%20%21H%3B%2010-15%20HCP)P4H(2-5%20%21C%3B%202-5%20%21D%3B%203-4%20%21H%3B%202-5%20%21S%3B%2015-17%20HCP%3B%2018-%20total%20points)PPP&p=H8H9H4HTHAH2H3H5H6C2HKD4S9S7SAS3D6D2D5D9C8CAC4C5D8D3DADTCTCJCKC7DJDKHQDQC6S4C9CQSKS5S6S2S8SQSJSTHJD7H7C3]499|350[/hv]

 

 

 

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]

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.

Edited August 2, 2014 by Bbradley62

[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]

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]

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.

 

... 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...

[hv=bbo=y&lin=pn|bbradley62,~~M51838,~~M51836,~~M51837|st%7C%7Cmd%7C4SJAH46TJD4JAC28TA%2CS38QHD678TKC49JQK%2CS469TH389QKD59C37%2C%7Crh%7C%7Cah%7CBoard%202%7Csv%7Cn%7Cmb%7Cp%7Cmb%7C1N%7Can%7Cnotrump%20opener.%20Could%20have%205M.%20--%202-5%20%21C%7Cmb%7Cp%7Cmb%7C2D%21%7Can%7CJacoby%20transfer%20--%205%2B%20%21H%20%7Cmb%7Cp%7Cmb%7C2H%7Can%7CTransfer%20completed%20to%20H%20--%202-5%20%21C%3B%202-5%20%21%7Cmb%7Cd%7Can%7CTakeout%20double%20--%203%2B%20%21C%3B%203%2B%20%21D%3B%202-%20%21H%3B%203%2B%20%21S%3B%2014-20%20total%20points%20%7Cmb%7Cp%7Cmb%7C2S%7Can%7C4%2B%20%21S%3B%2011-%20HCP%3B%2012-%20total%20points%20%7Cmb%7C3H%7Can%7C2-5%20%21C%3B%202-5%20%21D%3B%203-5%20%21H%3B%202-5%20%21S%3B%2017%20HCP%3B%20%7Cmb%7Cp%7Cmb%7C4H%7Can%7C5%2B%20%21H%3B%206%2B%20HCP%3B%207-8%20total%20points%20%7Cmb%7Cp%7Cmb%7Cp%7Cmb%7Cp%7Cpc%7C]360|270[/hv]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.