Sudoku Suprême n° 039 : Page 84 - Gr 81
L6C1 =6= L6C7 -6- L4C9 =6= L2C9 -6-8- L2C9 =8= L2C1 -8-9- L2C1 =9= L2C5 -9-4- L2C5 =4= L8C5 -4- L8C4 =4=6= L8C4 -6- L8C1 =6= L7C3 donc L4C3 et L8C1 ≠ 6