Reverse Flannery 1♣-2♥ shows constructive 4+♥, 5+♠. This agreement makes all
4+♥ variants in 1♣-1♠ INV+ and benefits checkback thereafter.
| 1♣-2♥- | CONST, 4+♥, 5+♠ |
|---|
| P, 2♠ | S/O |
| 2NT! | LEB |
| 3♣! | FG, 2+♠ |
| 3♦! | FG, 3+♥ |
| 3♥ | INV, 4+♥ |
| 3♠ | INV, 3+♠ |
| 3NT | S/O |
Opener’s rebids resemble BTU Ekren, but the rebids are more forcing because
- Minimum hands do not contain a 5-card major.
- Invitational hands are unbalanced.
| 1♣-2♥-2NT- | LEB |
|---|
| 3♣! | (R) |
| 3♦! | 3–4♣, 0–1♦, 54(xx) |
| 3♥ | 5+♥ |
| 3♠ | 6+♠ |
| 1♣-2♥-3♣- | FG, 2+♠ |
|---|
| 3♦! | 54(xx), at most partial stop in ♦ |
| 3♥ | 5+♥ |
| 3♠ | 6+♠ |
| 3NT | 54(xx), likely stop in ♦ |
| 1♣-2♥-3♦- | FG, 3+♥ |
|---|
| 3♥! | 54(xx), at most partial stop in ♦ |
| 3♠ | 6+♠ |
| 3NT | 54(xx), likely stop in ♦ |