[andych]

In the BBO adv FD file, 2H is a negative response to 2C showing
"NO ACE, NO KING, LESS 5HCP".

What is the proceedings then in standard? Is 2C opener rebid still forcing for 1 round? Or any other special treatments.

If responder hasnt make the 2H negative response, should one assume a started GF sequenece?

[kenrexford]

My understanding is yes -- still forcing one round.

[HeartA]

In my opinion, after 2H response, opener's rebid is not forcing anymore (maybe semi-forcing).

[EricK]

This answer may be trite, but it is surely simply a matter of how far you have agreed 2♣ to be forcing.

If it is unconditionally forcing to game then every non-game bid is forcing.

If it is forcing to game or 2NT then 2NT is NF everything other non-game bid is forcing.

If it is only forcing to 2NT, 3M or 4m then bids below these are forcing. Non-jump bids to these are NF. A jump to 3♠ sets trumps and is forcing.

There are occasionally some fast arrival inferences to be made. eg 2♣ 2♥ 4♠ just says opener wants to play in 4♠. 2♣ 2♥ 2♠ (any) 4♠ therefore shows a hand with some slam ambition but not enough to bid 3♠ on the previous round.

2♣ 2♦ is GF.

[rbforster]

My understanding, and I believe this is standard for those playing 2♥ immediate negative, is that a rebid of 2NT is non-forcing and new suits are forcing one round. The auction is not forced to game yet by a new suit however, so 2♣-2♥*-2♠-3♠ could be passed by opener and with a good hand/fit (in the context of 2♥) responder should jump to 4♠ on that sequence.

[inquiry]

2NT - not forcing, new suits by opener forcing. After trump agreement, if game is not reached, then non-forcing again.

I actually play a little different. First, I use 2S and 2H both as negative. 2S negative by respnder bid suggest some modest heart support. Both 2H and 2S are passable by opener. Over 2H, 2S by opener is NOT forcing. Respnder will raise to 3S with one trick for spades but can pass. I can get away with this because of other unusual agreements, for instance, if I have a minor suited hand, it is GAME FORCE, with a two suited hand, I open with a conventional bid, and with a three suiter, I have a conventional rebid available. So wiht 10 tricks and a major suit, I can rebid a forcing 3M, or just 4M, this is based mostly on Chris Ryall's methods.

[HeartA]

To allow responder to pass the second bid, one can open a lighter 2C.

[neilkaz]

HeartA, on Aug 3 2006, 11:38 AM, said:

To allow responder to pass the second bid, one can open a lighter 2C.

The problem with passing 2M in a normal 2♣ system is that opener might be 2 suited. Hence, the need to rebid once.

I am working on a 2C/2D system (played on a bit many years ago but long ago lost the notes) that will enable hands in the danger zone between a typical 9 trick min 2♣ and a hand that misses game when responders pass with 3 HCP and a little fit, to be opened 2♣ and with 2♦ being controls (0 or 1) (or bust if you can't stand controls) then 2♥ or 2♠ may be passed by a worthless hand. (I think SEF does this).

Two suited hands and 3 suited hands will be opened 2♦ which forces 2♥ with the 3 suited hands rebidding the suit below the stiff, like in multi, and two suited hands rebidding 2♠ and then continuing.

Hopefully, I won't find any blatant flaws. One issue is that after 2♣/2♦ a GF onesuiter (cannot have two good suits) must jump to 3M, but I think that is overcome by allowing near ACOL-type major openings to be opened 2C.

Other benefits of this approach is that the whole variety of HCP held for rebidding 2NT can be broken into smallish ranges based on 2♣ or 2♦

.. neilkaz ..