Sudoku Suprême n° 037 : Page 56 - Gr 53
L6C8 -9- L4C89 =9= L4C5 -9-6- L4C5 =6= L9C5 -6-7- L9C5 =7= L9C8 -7-5- L9C8 =5= L6C8 donc L6C8 ≠ 9