ACCUEIL

The ambiguous transfer opening 2NT

The opening 2 of 'majeure précisée', balanced and with 20-21HCP, replaces the classic opening of 2NT. The opening 2NT is therefore made available. Here are its main developments:

The opening of 2NT, or 2NT multi, is totally ambiguous.
- It is used either as barrage to in Transfer to with a weak hand but a good 7-card suiter.
- Or to propose the contract of 3NT with the opening strength and an autonomous minor of 7 cards.
- Or to indicate a very strong hand, based on a minor or major 55 two-suiter, or based on a 6 cards major suiter.
- Or to indicate a 7/8 cards major suiter with at least normal opening strength, of the Acol type.

For the sake of coherence in keeping with the 2NT barrage opening at , the other weak 7-card barrage openings are also covered on this page, although they are not opened 2NT but as other transfer openings at level 3.
And at the end of the presentation, a reminder of the regular 2 opening of 20-21H

Weak 7-card barrage openings

With 7, opening 2SA (Transfer to )
With 7, opening 3 (Transfer to )
With 7, opening 3 (Transfer to )
With 7, opening of (Transfer to )

Any refusal by responder to complete in the weak 7° suiter is a game forcing.

The 2NT(Transfer to ) and 3 (Transfer to ) are constructive, with a solid 7 cards minor suiter, in the hope of playing 3NT.

If the opener speaks again after the responder's completing, he necessarily has a very strong hand, the structure of which he then specifies.

Openings with autonomous 7° minor and hope of 3NT

The opener has the opening strength, with a guard in another color, or 2 half-guards in 2 other colors :

- Opening 3 (Transfer to 3SA) so that responder receives the lead.
- Opening of 3NT so that opener receives the lead.

But we can prefer:
3 (with 7) more precise and stronger than the 2NT transfer opening to
3NT(with 7) more precise and stronger than the 3 transfer opening to 3

Strong openings of at least 18HCP

They are based on either a long and strong major suiter, or a strong minor or major 55 two-suiter.

The opener opens 2NT as if he had 7. Then after completing to 3 :

2NT(presumed 7) 3 (completing) *
Pass (with 7 ) weak
   
3 (with 5 5) and 20-21HCP **
   
3 (with 6) and 18-19HCP+
3 (with 6) and 18-19HCP+
   
3SA (with 5 5) and 20-21HCP
4 (with 6 5) and 16-17HCP ***

* Any response from responder other than the completing to 3 is game forcing.
** On this 3, the only non-forcing responses from responder are Pass and 4.
*** At least 16-17HCP. With 6 5, and same strength, see the opening 1NT and the opener' rebid 4.

Openings with a 7 or 8 cards major suiter

These are ACOL type openings that do not promise more than the opening strength, but promise a strong 7/8 cards major suiter.

3 (presumed with 7) 3 (completing)
Pass (with 7) weak
 
3 (with 7 or 8) *  
3 (with 7 or 8) *  

* With at least normal force opening. The opener can also, depending on the case, complete at the level of 3 with 7 cards in his major and at level 4 with 8 cards.


NB: This 2NT multi opening is the big sister and the extension of the 1NT multi opening that you can consult by clicking on:
Opening 1NT multi

____________________

Opening of 2 diamonds

The opening 2, balanced and with 20-21HCP, replaces the classic opening 2NT and fulfills all the functions of the latter. But in addition it allows the following important and new details:


The responder has a balanced hand without any major suiter

If the responder has a regular hand, without a 5 cards major suiter, he bids a relay response 2 or 2 which requires completing to 2NT :

2 2 (relay) or 2(relay) *
2NT (completing)

* Mandatory completing to 2NT. Responder passes with at most 3/4HCP.
If responder has at least 5HCP, after rectification to 2NT, he bifs 3NT.

NB: The relays 2 and 2 always require completing to 2NT. The choice of the relay is related to the responder's rebid which specifies the meaning of it.
The only case where the choice of the relay has no importance is as here when the responder wants to play 2NT or 3NT.


The responder has a 5 cards major suiter and at least 5HCP

The responder bids a direct Transfer response at level 3, forcing game.
Example with 5 :

2 3 (Texas ) at least 5HCPL *
3 (complleting) fits to
3NT (with 2)

* Game forcing. This precise response is impossible in classical auctions because, had the responder only has 1HCP or 2HCP, it would force the opener to play 3 or 3NT.

Since the fit in major is known from the start by both players, this allows the responder to name his first control straight away if he has a slam ambition, otherwise to conclude at 4

This is also perfect in classical auctions, if the pair has agreed that the response 3 is game forcing, but the contract 3 would then be forbidden when the the responder is weaker, for instance with 2HCP.
No problem in specified major:


Responder has a weak 5 cards major suiter, with at most 2/3 HCP

He makes a relay response by naming the inverse major which requires completing to 2NT by opener. Then, after this 2NT, he makes an indirect Transfer response.
Example with 5 and weak hand:

2 2 (relay)
2NT (completing 2) 3 (Transfer to ) weak and 5
3 (completing of 3) Pass


Responder has a weak 6° minor

If responder has a very weak hand with a 6° minor he makes the response of 2NT, which requires the rectification to 3. Example with JX8542 or QX8542 at for any soup:

2 2NT (presumed weak and 6)
3 (completing 2NT) * Pass

* Mandatory rectification at 2NT. Forget playing 3 after classical opening 2NT, which would be a Staman

And with VX8542 or DX8542 at for any soup:

2 Pass (distress)

Forget playing 2 after classical opening 2NT, of course. But forget also playing 3 which would be a transfer to .


Responder has a 4 cards major suiter and at least 4-5HCP

He bids a Stayman, but it is an indirect Stayman bid.

The opener bids first the inverse major as relay. The first answer relay 2 then clearly indicates 4 without 4 and the answer relay 2 indicates 4 without 4. After the relay, the opner must always complete to 2NT :

2 2 (relay)
2NT (obligatory) 3 (Stayman) with 4 *
3 (with 4)
3NT (without 4)

* Game forcing

2 2 (relay)
2NT (obligatory) 3 (Stayman) with 4 *
3 (with 4 )
3NT (without 4 )

* Game forcing

NB : The direct responder's answer 3 is forbidden. If reponder used this answer, when the opener has no fit in the responder' major he would have to rebid 3, and on this 3 the responder would have to bid and play himself 3NT. And if after 3 the responder bidded for instance 3 instead of 3NT, he would indicate a 5 4 two-suiter with at least 9HCP.

Début document

contact : maubird@orange.fr