2NT rebid auctions - is this style common?

#1 hirowla

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Posted 2013-December-25, 18:17

Hi, I posted some hands where the auctions seemed to start 1♦ - 2♣ and I was getting a recommendation of a 2NT rebid showing 15+ pts, game force and not necessary balanced (this was in the context of playing a weak NT opening bid and not playing 2/1).

Is this a common thing (and I've missed it)? Does it have a particular name (so I can look it up)? What are the advantages/disadvantages of it? Traditionally I use a NT rebid to show a NT style hand with a specific point count, and if I don't rebid NT then I don't have a NT style of hand (so I guess I would lose this). Is it only applicable for this particular auction start or is it applicable to other auctions (like 1♥ - 2♣ or 1♠ - 2♦ etc)?

Any information would be good.

Thanks,

Ian

#2 kenrexford

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Posted 2013-December-25, 18:28

I play this in some partnerships, but I usually have a balanced hand. As a strange sounding corollary, for reasons you may figure out, we also play in this context that 1D-2C- 3C shows unbalanced with long or short clubs. 3C as a relay asks. 3M confirms length in clubs and the bid major as short; 3NT indicates short clubs. A direct 3M instead (not via 3C) shows shortness also but a different strength/type. 2M instead is real and unbalanced, as well. Weak balanced go through 2D.

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#3 wank

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Posted 2013-December-26, 11:36

No this is 1 poster's unusual system. It's unusual because it's terrible. You're taking away all
your space on your strong hands where you need space most for slam investigation.

#4 helene_t

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Posted 2013-December-26, 11:56

Strong unbalanced hands can usually either splinter, reverse or rebid 3♦, all of which are gf.

I can sympathise with a 2NT rebid on something like AQx-AQx-Axxxxx-x or Kx-Kx-AKxxx-Kxxx, but in principle it shows a balanced hand.

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#5 ahydra

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Posted 2013-December-26, 12:59

After a 2/1, we play 2NT is 15-19 BAL - except in the case 1S-2H. The reason here is because you don't have a way to distinguish 15-17 hands from really big hands, if opener wants to support hearts.

So 1S-2H; 2NT is 15-19 BAL or a strong heart raise. 3C asks, then

3D = BAL, MIN
3H = BAL, MAX, a third heart
3S = BAL, MAX, a fifth spade
3NT = BAL, MAX, no 3H or 5S
4C = strong hand with heart support & club splinter
4D = ditto, with a diamond splinter
4H = any other strong hand with heart support

An alternative method is to play 1S-2H as GF (while 1S-2m is the usual 10+).

Cyberyeti plays some multi-way 2NT GF conventions, you could ask her for some info.

ahydra

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