grandmaitre n° 14 : Page 30 - Grille 19
L1C1 ≠ 9 L5C1 = 9 L2C1 = 5 L7C8 = 5 L7C7 = 7 L3C9 = 7 L3C2 = 5 L5C1 = 5 L1C1 = 9 donc L1C1 = 9