Maestro n° 086 : Page 84 - Gr 81
L3C6 -7- L3C4 =7=8= L3C4 -8- L9C4 =8= L9C3 -8-6- L9C3 =6= L9C2 -6- L3C2 =6= L3C6 donc L3C6 ≠ 7