Maestro n° 102 : Page 82 - Gr 79
L1C8 =9= L1C6 -9-7- L1C6 =7= L1C12 -7- L3C3 =7= L7C3 -7- L9C2 =7=9= L9C2 -9- L6C2 =9= L4C23 donc L4C8 ≠ 9