Sudoku Suprême n° 039 : Page 77 - Gr 74
L6C2 -1- L12C2 =1= L1C3 -1-8- L1C3 =8= L1C8 -8-3- L1C8 =3= L9C8 -3- L9C2 =3= L6C2 donc L6C2 ≠ 1