Maestro n° 104 : Page 82 - Gr 79
L3C5 =1= L2C5 -1- L2C9 =1=3= L2C9 -3- L6C9 =3=8= L6C9 -8- L6C7 =8= L1C7 -8-4- L1C7 =4= L3C7 donc L3C7 ≠ 1 et L3C5 ≠ 4