Maestro n° 100 : Page 78 - Gr 75
L4C1 =7= L5C1 -7-8- L5C1 =8= L5C3 -8- L2C3 =8=6= L2C3 -6- L2C5 =6= L8C5 -6- L8C8 =6=3= L8C8 -3- L8C7 =3=9= L8C7 -9- L5C7 =9= L5C9 -9-6- L5C9 =6= L6C9 -6- L6C1 =6=5= L6C1 -5- L6C5 =5= L4C5 donc L4C1 ≠ 5 et L4C5 ≠ 7