Raise Only Non-Forcing
RONF is a standard style of responding to an opening weak two. The responses are:
| 2NT | Strong (15+ points), artificial, and forcing for one round. Opener is expected to bid his cheapest side suit containing an ace or king, if he has one. Otherwise, he rebids his suit. |
| Natural signoff. The response from which RONF gets its name. | |
| New suit | Natural (5+ cards) and forcing for one round. |
Examples
| Opener | Responder | ||||
 Q52 | JT6 | ||||
 KJ8732 | A65 | ||||
 5 | A9742 | ||||
 J87 | 93 | ||||
Opener 2 (1)Pass |
Responder 3 (2) |
- Weak two
- Non-forcing raise
| Opener | Responder | ||||
| AQT743 | K85 | ||||
| 64 | AQ52 | ||||
| T5 | J6 | ||||
| K87 | AQ65 | ||||
Opener 2 (1)3 (3)Pass |
Responder 2NT (2) 4 |
- Weak two
- Artificial, forcing
- Showing a club 'feature', i.e. the king
- Bidding game with a good club fit