Gerber Convention
Check Number of Aces & Kings Held by Partnership
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Sequences:
- I:4C (after following Initial Sequences) - asks for Aces
- I:pass (after 4NT response to 4C) - to play
- I:4NT (after response to 4C) - to play
- I:5C (after response to 4C) - asks for Kings
- I:pass (after 5NT response to 5C) - to play
- I:5NT (after response to 5C) - to play
- I:6NT or 7NT (after response to 4C or 5C) - to play
Initial Sequences
| O: | R:
| O: | R: |
| 1NT | 4C |
| 1NT | 2C | 2D/H/S | 4C |
| 1NT | 2D | 2H | 4C |
| 1NT | 2H | 2S | 4C |
| 2NT | 4C |
| 2NT | 3C | 3D/H/S | 4C |
| 2NT | 3D | 3H | 4C |
| 2NT | 3H | 3S | 4C |
- For: 2C-2 bid-2NT
- Use: same Gerber sequences as 2NT opener
- Other sequences can be defined. Discuss these with new partner
before you used them.
- Example: 1C-2NT-4C (Gerber)
- Example: 1C-1H-1NT-4C (Gerber)
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Responses: after 4C
| R:4D | 0 or 4 Aces |
| R:4H | 1 Ace |
| R:4S | 2 Aces |
| R:4NT | 3 Aces |
Responses: after 5C
| R:5D | 0 or 4 Aces |
| R:5H | 1 Ace |
| R:5S | 2 Aces |
| R:5NT | 3 Aces |
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