Sudoku Suprême n° 039 : Page 49 - Gr 46
L1C6 =7= L2C6 -7-6- L2C6 =6= L2C8 -6-4- L2C8 =4= L4C8 -4- L6C7 =4=7= L6C7 -7- L8C7 =7= L789C8 donc L1C8 ≠ 7