[Dwingo]

Any one has a robust set of conditions in which Good Bad 2NT is applied.

My pd & I seem to get into problems, each one having a different understanding of when this would apply invariably leading to misunderstandings and botched auctions.

Any help would be appreciated.

[pclayton]

Start with two auctions:

1x - (pass / dbl / 1y) - (2x/2z) - 2N and

1x - (pass / dbl / 1y) - 1y - 2z; 2N

Personally I think G/B 2N should be a defined and not a default bid of 2N.

[Codo]

We have these easy rules:

If pd passes, 2 NT is a two suiter, f.e 1 ♣ (1 ♥) pass (2 ♥) 2 NT shows clubs with some diamonds.

If pd doubles, 2 NT without a jump is lebensohl,f.e.
(2 ♥) X (pass) 2 NT

If pd bids a suit, 2 NT is a better raise or a suit which you cannot bid direct.

F.E. 1♥ (2♠) 2 NT is a good heart raise or a 7-10 HCP hand in a minor. (Íf there is no more open suit, which responder can have, then 2 NT is just the good raise.)

Maybe this is not always the best approach, but it is always well defined when 2 NT is good/bad, when it is leb. and when it is a two suiter.

[whereagles]

My rule is:

2NT is good-bad whenever opener's RHO bids below 2NT, regardless of what his pard bid.

It shows a min or max hand, e.g. something like 11-14 OR 18-20. With 15-17, you bid the suit(s) right away.

[Hilver]

Take a look at http://www.bridgehan...d_2_Notrump.htm

Jan Veerbeek

[P_Marlowe]

For us Good-Bad is the default meaning unless
explicit defined other wise.

It works.

With kind regards
Marlowe

[CSGibson]

We define it as whenever opponents have bid and raised a suit, either explicitly or implicitly.

1♠-(X)-2♣-(2♥) would be a good-bad 2N auction for us, as the doubler has hearts, too, and of course the more mundane (1♠)-X-(2♠)-2N would now be good-bad for us.