Maestro n° 087 : Page 12 - Gr 9
L3C5 =6= L3C6 -6- L7C6 =6=5= L7C6 -5- L7C2 =5=3= L7C2 -3- L1C2 =3= L1C3 -3-4- L1C3 =4= L1C4 -4- L9C4 =4= L7C5 donc L3C5 ≠ 4 et L7C5 ≠ 6