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Conventions and guides, chapter
Other conventions
( ★ : subscribers only)
| Code | Subject | B | 1 | 2 | 3 | 4 |
|---|---|---|---|---|---|---|
| 67A1 | Ghestem convention | ★ | ||||
| 67A2 | Copenhagen convention | ★ | ||||
| 67B1 | The lebensohl convention | ★ | ||||
| 67D2 | The rule of 7 | ★ | ||||
| 67D3 | The 'rule of 9' | ★ | ||||
| 67D4 | The rule of 11 | ★ | ||||
| 67D5 | The rule of 15 | ★ | ||||
| 67D8 | The rule of 20 | ★ | ||||
| 67VZ | Puppet Stayman convention | ★ |
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