Sudoku Suprême n° 037 : Page 55 - Gr 52
L2C7 =7=1= L2C7 -1- L2C4 =1= L1C6 -1- L7C6 =1=6= L7C6 -6- L8C4 =6=3= L8C4 -3- L5C4 =3= L5C8 -3- L6C7 =3= L1C7 -3-5- L1C7 =5= L1C9 -5- L5C9 =5=7= L5C9 donc L1C9 et L46C7 ≠ 7