Unbalanced 2♠
The 1♦-2♠ response shows an unbalanced invitation weary of 2NT. It promises either 4+♦ or 6+♣.
| 1♦-2♠ | UNBAL INV |
|---|---|
| 2NT! | P/C, MIN 0–1♣ |
| 3♣! | P/C, MIN 2–3♣ |
| 3♦! | P/C, MIN 4+♣ |
| 3♥! | FG, ask for ♠ stopper |
| 3♠! | FG, ask for ♥ stopper |
| 3NT | S/O |
P-1♦-2♠
Passed hand has 2♣ for a club invitation, so 2♠ reduces to a limit raise.
| P-1♦-2♠ | LIM, 3+♦ |
|---|---|
| 2NT | MIN, 4=♦ |
| 3♦ | S/O, 5+♦ |
| 3♣♥♠ | FG, 3+# |