2!c as 18–19 NT or GF
The 2!c opening is 18–19 NT (not 5M332) or any GF. Notes by Erik Sjöstrand.
| ÖH | SH |
|---|---|
| 2!c | ? |
- 2!d
- 4+!h or waiting (not suitable for other bid)
- 2!h
- 18–19 NT
- 2!s
Puppet to 2NT
Responder wants to sign off in 2/3NT, or she has 5+!h (GF) or 4-4 a balanced hand with 4-4 majors or a 4441 pattern. Unfortunately this will make responder declarer in a potential spades contract, but I couldn’t find a good alternative.
- 2NT
- Forced.
- Pass
- Weak.
- 3!c
- Stayman, 4-4 majors.
- 3!d
- No major.
- 3!h
- 4-4-1-4
- 3!s
- 4-4-4-1
- 3NT
- To play.
- 3!h!s
- 4-card major (bid your best suit with 4-4).
- 3!d
- 5+!h, GF.
- 3!h
No support.
An alternative here could be to use 3!s as a puppet to 3NT (to play or short spades), and make 3NT a bid demanding cue bids (or something similar).
- 3NT
- To play.
- New
- Singleton.
- 4!h
- To play.
- 3!s
- 3+!h.
- 3NT
- Demands cue bids.
- New
- Singleton.
- 4!h
- To play.
- 3!h
- 4-1-4-4, SI
- 3!s
- 1-4-4-4, SI
- 3NT
- To play.
- 2NT
4+!h and 4+!c (9+ cards), weak/SI.
If responder is weak she will always have a four card major and a five+ minor.
- 3!c
- Not 4!h
- Pass
- Weak 4!h and 5+!c
- 3!h
- 5+!h and 4+!c, SI
- 3NT
- No support (now 4!c shows 5-5)
- 4!c
- 4+!c
- Others
- Cue with 3!h
- 3NT
- 4!h and 5+!c, passable SI
- Others
- SI with 5+!c and 4!h
- 3!h
- 4!h
- Pass
- Weak with 4!h and 5+!c
- 3!s
- Singleton
- 3NT
- Demands cue bids
- 4!c
- 5-5
- 4!d
- Singleton
- 4!h
- Passable SI
- 3!c
4+!h and 4+!d (9+ cards), weak/SI.
Same principle as transffering to clubs in the sequence above.
- 3!d
- 5+!h and 4!s, GF.
- 3!h!s
- Fit
- 3NT
- No fit
- 3!h
- 5+!s och 4!h, GF.
- 3!s
- Fit
- 3NT
- No fit.
- 4!c
- Heart fit.
- 3!s
- COG with 4!h.
- 3NT
- Passable SI with 5!h.
- 4!h
- To play.
- 2!s
- Natural GF
- 2NT
- GF with 5+!h
- 3!c!d
- Natural GF
- 3M
- 5+!d and 4M, GF
- 3NT
- 25–27
- 2!h
- 4+!s
- 2!s
- 18–19 NT
- 2NT
4+!s and 4+!c (9+ cards), weak/SI
Same principle as 2!c–2!d; 2!h–2NT.
- 3!c
4+!s and 4+!d (9+ cards), weak/SI
Same principle as 2!c–2!d; 2!h–3!c.
- 3!d
- 6+!s, SI
- 3!h
- COG with 5!s
- 3!s
- COG with 4!s
- 3NT
- Passable SI with 5!s.
- 2NT
- GF with 5+!h
- 3!c!d
- Natural GF
- 3!h
- 5+!d and 4!h, GF
- 3!s
- 4+!s, GF
- 3NT
- 25–27
- 2!s
Minor suit Stayman, weak/SI.
Sign off with one or both minors, or SI with single-suited minor.
- 2NT
- Longer diamonds/equal length or GF with clubs.
- 3!c!d
- Weak. Natural continuations.
- 3!h
- SI with clubs.
- 3!s
- SI with diamonds.
- 3!c
Longer clubs
Same principle as 2NT above.
- 3!d+
- Natural GF.
- 2NT
- 5-5 majors, GF.
- 3!c
- 5+!c and 4!d, GF.
- 3!d
- 5+!d and 4!c, GF.
- 3!h!s
- 5-5 minors and singleton major, GF.