Maestro n° 103 : Page 58 - Gr 55
L3C1 =4= L4C1 -4-2- L4C1 =2= L4C8 -2-8- L4C8 =8= L5C8 -8- L5C5 =8=1= L5C5 -1- L7C5 =1= L7C2 -1-5- L7C2 =5= L3C2 donc L3C2 ≠ 4 et L3C1 ≠ 5