Stenberg 2NT
The principle of fast arrival should not apply to an unlimited Jacoby 2NT. The weaker opener is, the more likely responder has something to say. Therefore, I import responses from Stenberg, aka Swedish Jacoby 2NT.
| 1♥ - 2NT - | |
|---|---|
| 3♣! | MIN |
| 3♦! | MAX, no SPL |
| 3♥! | MAX FRAG, 0–1♣ |
| 3♠! | MAX FRAG, 0–1♦ |
| 3NT! | MAX FRAG, 0–1♠ |
| 4♣ | MAX, 5+♣ |
| 4♦ | MAX, 5+♦ |
| 4♥! | MAX, 6+♥, 4+♠ |
| 1♥ - 2NT - 3♣ - | |
|---|---|
| 3♦! | (R), FG |
| 3♥ | S/O |
| 3NT | BAL choice of games |
| 1♥ - 2NT - 3♣ - 3♦ - | |
|---|---|
| 3♥! | FRAG, 0–1♣ |
| 3♠! | FRAG, 0–1♦ |
| 3NT! | FRAG, 0–1♠ |
| 4♣ | 5+♣ |
| 4♦ | 5+♦ |
| 4♥ | Nearly BAL |