Maestro n° 085 : Page 40 - Gr 37
L7C2 =4=6= L7C2 -6- L7C7 =6=7= L7C7 -7- L7C4 =7= L9C4 -7-3- L9C4 =3= L5C4 -3-8- L5C4 =8= L5C8 -8- L9C8 =8= L9C7 -8-6- L9C7 =6= L9C3 donc L9C3 ≠ 4 et L7C2 ≠ 6