Competing at the 2-level
Competition at 1♣ (*) share properties of the following auctions:
- (*), as opener shows no suit yet
- 1NT (*), as opener shows only strength
1♣ (1NT)
I recommend a transfer system below 3NT. Since X frees up 2NT, 2NT and above become transfers (cf. Rubens advances). Below 2NT, continuations to 1NT form a major-oriented structure. Such structure allows bidding a 5-card major regardless of strength.
| 1♣ (1NT) | - |
|---|---|
| X | PEN, nearly BAL INV+ |
| 2♣! | STAY. Garbage STAY. INV 5=♠ |
| 2♦! | TRF, 5+♥ |
| 2♥! | TRF, 5+♠ |
| 2♠! | Minor suit Multi/STAY, 6+♦♣ or FG 4+♦ 4+♣ |
| 2NT! | TRF, PRE 7+♣ or FG 6+♣ |
| 3♣! | TRF, PRE 7+♦ or FG 6+♦ |
| 3♦! | TRF, PRE 7+♥ or FG 6+♥ |
| 3♥! | TRF, PRE 7+♠ or FG 6+♠ |
| 3♠! | Gambling, SOL 7+ suit with no stopper outside |
| 3NT! | Gambling, SOL 7+ suit with one stopper outside |
1♣ (2♣)
Similar to 1NT (2♣︎), some 1♣︎ (2♣︎) show both major suits, e.g. Landy, Michaels. This kind of 2♣︎ requires extra care. I recommend BTU vs Unusual.
| 1♣ (2♣) | Both majors |
|---|---|
| X | PEN for either major |
| 2♦ | NF, 5+♦ |
| 2♥! | FG, 5+♦ |
| 2♠! | INV+, 5+♣ |
| 2NT! | LEB, PRE 6+♣ or FG (xx)45 |
| 3♣♦ | INV, 6+# |
| 3♥♠! | Ask for stopper in this suit |
Otherwise, keep using the major-oriented system at 1♣︎ (1NT). This treatment is the same as the systems on approach at 1NT (2♣︎).
| 1♣ (2♣) | Other cases |
|---|---|
| X! | INV+ STAY or INV 5=♠ |
| 2♦! | TRF, 5+♥ |
| 2♥! | TRF, 5+♠ |
| 2♠! | Minor suit Multi/STAY, 6+♦♣ or FG 4+♦ 4+♣ |
| 2NT! | TRF, PRE 7+♣ or FG 6+♣ |
| 3♣! | TRF, PRE 7+♦ or FG 6+♦ |
| 3♦! | TRF, PRE 7+♥ or FG 6+♥ |
| 3♥! | TRF, PRE 7+♠ or FG 6+♠ |
| 3♠! | Gambling, SOL 7+ suit with no stopper outside |
| 3NT! | Gambling, SOL 7+ suit with one stopper outside |
1♣ (2♦♥♠)
Rubinsohl covers these auctions. FunBridge also inspires the Strawberry adjunct over 1m (2M):
| 1♣ (2M) | - |
|---|---|
| 3♥! | FG, 5=OM |
| 3♥-3♠! | Ask for stopper |
| 3♠! | FG, 6+OM |
