Maestro n° 085 : Page 32 - Gr 29
L3C1 =4= L7C1 -4-6- L7C1 =6= L7C3 -6- L2C3 =6= L2C2 -6-4- L2C2 =4= L2C4 -4- L3C5 =4=2= L3C5 donc L3C1 ≠ 2 et L3C5 ≠ 4