Pre-empt
(strength/length dependant on vuln and position); ALL responses and sequences are identical to those following a 3C opening; New suit; natural (in principle); may be cue bid if minor over major; Raises; obstructive raise; Game Bids- to play
| Rebid | Meaning |
|---|---|
| 3D/3H/3S 4NT | Blackwood New suit; natural (in principle); may be cue bid if minor over major; Raises; obstructive raise; Game Bids- to play 5C-0; 5D-1 (no other possibilities) |