.... where Good/Bad 2NT would have saved us.
The convention is used in competition, and you give up the natural 2NT.
A direct 3-level bid shows a good hand, whereas
2NT! ( Lebensohl-like) relays to 3C! and your next bid shows a minimum hand:
1)
.----------------------------------------------------.
|Dealer: N ===North======== Brd# 168537 |
|Declarer: N > Swap46 Scoring: MP |
|Vulnerable: EW S: QJ4 |
|Contract: 3NT H: QT7 |
|Result: Down 1 D: QT843 |
|Score: -50 C: A4 |
|===West========= ===East========= |
|> _TheAb_BOT .----------. > _Wonder_BOT |
|S: 763 | | S: KT982 |
|H: KJ8542 | | H: 93 |
|D: 6 | | D: A9 |
|C: 876 .----------. C: KQT5 |
| |
| ===South======== |
| > TWOferBRIDGE |
| S: A5 |
| H: A6 |
| D: KJ752 |
| C: J932 |
.----------------------------------------------------.
BIDDING:
West North East South
1D 1S 2S!( limit+ for Diam )
Dbl 2NT Pass 3NT
Pass Pass Pass
Using Good/Bad 2NT! :
- - 1D 1S 2S!
DBL 2NT! p 3C!(forced)
p 3D (min; weaker than if had directly rebid 3D)
all pass
88888888888888888888888888888888888888888888888888
2)
.----------------------------------------------------.
|Dealer: S ===North======== Brd# 168539 |
|Declarer: N > Swap46 Scoring: MP |
|Vulnerable: None S: Q7 |
|Contract: 3NT H: QT6 |
|Result: Down 3 D: JT32 |
|Score: -150 C: AK83 |
|===West========= ===East========= |
|> charlie576 .----------. > jasmin1944 |
|S: AT82 | | S: 96543 |
|H: AJ7542 | | H: K98 |
|D: A4 | | D: 9 |
|C: 7 .----------. C: T654 |
| |
| ===South======== |
| > TWOferBRIDGE |
| S: KJ |
| H: 3 |
| D: KQ8765 |
| C: QJ92 |
.----------------------------------------------------.
BIDDING:
West North East South
1D
1H 2H! Pass 3D
Pass 3NT Pass Pass
Pass
Using Good/Bad 2NT!:
-- -- -- 1D
1H 2H! p 2NT!
p 3C! p 3D ( minimum open )
all pass