Maestro n° 097 : Page 32 - Gr 29
L7C1 =2= L7C7 -2-4- L7C7 =4= L5C7 -4-5- L5C7 =5= L5C3 -5- L3C3 =5= L1C1 -5-2- L1C1 =2= L1C2 -2- L8C2 =2=1= L8C2 donc L7C1 ≠ 1 et L8C2 ≠ 2