Sudoku Suprême n° 039 : Page 63 - Gr 60
L7C7 -8- L7C5 =8= L1C5 -8- L1C6 =8=2= L1C6 -2- L1C8 =2= L2C8 -2- L2C2 =2= L6C2 -2-3- L6C2 =3= L7C2 -3-6- L7C2 =6= L7C7 donc L7C7 ≠ 8