Maestro n° 104 : Page 81 - Gr 78
L1C3 =4= L8C3 -4- L8C9 =4= L6C9 -4-7- L6C9 =7= L7C9 -7-5- L7C9 =5= L7C2 -5-6- L7C2 =6= L3C2 donc L3C2 ≠ 4 et L1C3 ≠ 6