Maestro n° 094 : Page 83 - Gr 80
L1C9 -8- L8C9 =8=7= L8C9 -7- L5C9 =7= L5C8 -7-4- L5C8 =4= L1C8 -4-6- L1C8 =6= L1C9 donc L1C9 ≠ 8