grandmaitre n° 17 : Page 62 - Grille 49
L3C6 -9- L3C1 =9=5= L3C1 -5- L2C1 =5= L2C4 -5-6- L2C4 =6= L2C7 -6- L1C7 =6=3= L1C7 -3- L3C9 =3= L3C6 donc L3C6 ≠ 9