grandmaitre n° 15 : Page 69 - Grille 53
L1C8 -9- L1C3 =9= L2C3 -9-2- L2C3 =2= L2C1 -2-1- L2C1 =1= L3C1 -1- L3C8 =1= L1C8 donc L1C8 ≠ 9