Maestro n° 103 : Page 81 - Gr 78
L3C9 =2=6= L3C9 -6- L2C7 =6= L2C5 -6-7- L2C5 =7= L5C5 -7- L5C7 =7=5= L5C7 -5- L6C8 =5= L6C1 -5-9- L6C1 =9= L9C1 -9-2- L9C1 =2= L7C3 -2- L7C9 =2=6= L7C9 donc L7C9 ≠ 2 et L3C9 ≠ 6