Sudoku Suprême n° 039 : Page 47 - Gr 44
L2C2 =7= L7C2 -7-9- L7C2 =9= L7C1 -9- L5C1 =9=2= L5C1 -2- L1C1 =2= L1C3 -2-9- L1C3 =9= L1C4 -9-7- L1C4 =7= L2C4 donc L2C78 ≠ 7