Maestro n° 087 : Page 83 - Gr 80
L9C8 -2- L7C8 =2=1= L7C8 -1- L3C8 =1=6= L3C8 -6- L4C8 =6= L4C9 -6-5- L4C9 =5= L4C4 -5-1- L4C4 =1= L9C4 -1-4- L9C4 =4= L9C8 donc L9C8 ≠ 2