Maestro n° 097 : Page 80 - Gr 77
L1C8 =8= L1C5 -8-6- L1C5 =6= L9C5 -6- L9C3 =6=7= L9C3 -7- L3C3 =7= L3C2 -7-2- L3C2 =2= L3C4 -2-3- L3C4 =3= L3C9 donc L1C8 ≠ 3 et L3C9 ≠ 8