grandmaitre n° 15 : Page 69 - Grille 53
L3C4 -8- L3C5 =8=1= L3C5 -1- L3C1 =1= L2C1 -1-2- L2C1 =2= L2C3 -2-9- L2C3 =9= L1C3 -9- L1C4 =9= L3C4 donc L3C4 ≠ 8