Sudoku Suprême n° 037 : Page 78 - Gr 75
L1C7 =3= L2C7 -3-9- L2C7 =9= L6C7 -9-1- L6C7 =1= L6C2 -1-8- L6C2 =8= L6C5 -8-3- L6C5 =3= L4C4 -3- L3C4 =3= L3C2 donc L1C23 ≠ 3