Sudoku Suprême n° 040 : Page 46 - Gr 43
L4C9 -9- L4C8 =9=8= L4C8 -8- L1C8 =8= L1C5 -8-9- L1C5 =9= L7C5 -9- L7C7 =9=4= L7C7 -4- L7C9 =4= L4C9 donc L4C9 ≠ 9