Maestro n° 087 : Page 58 - Gr 55
L8C2 =6= L1C2 -6-5- L1C2 =5= L3C3 -5- L5C3 =5= L5C6 -5- L4C5 =5= L9C5 -5-7- L9C5 =7= L9C3 donc L9C3 ≠ 6 et L8C2 ≠ 7