12 CHIFFRES AVEC DES GRILLES DE 8 NUMEROS G=5/8
Tableau du système:
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | |
| N° | . | . | . | . | . | . | . | . | . | . | . | . |
| 1 | . | . | . | . | . | . | . | . | X | X | X | X |
| 2 | . | . | . | . | . | . | X | X | . | . | X | X |
| 3 | . | . | . | . | X | X | . | . | . | . | X | X |
| 4 | . | . | . | . | X | X | X | X | . | . | . | . |
| 5 | . | . | . | X | . | . | . | X | . | . | X | X |
| 6 | . | . | . | X | . | . | X | . | . | . | X | X |
| 7 | . | . | X | . | . | . | . | X | X | X | . | . |
| 8 | . | . | X | . | . | . | X | . | X | X | . | . |
| 9 | X | X | . | . | X | X | . | . | . | . | . | . |
| 10 | X | X | X | X | . | . | . | . | . | . | . | . |