Maestro n° 104 : Page 87 - Gr 84
L9C3 =2= L5C3 -2-6- L5C3 =6= L5C9 -6- L2C9 =6= L1C8 -6-1- L1C8 =1= L8C8 -1-8- L8C8 =8= L9C8 donc L9C8 ≠ 2 et L9C3 ≠ 8