Sudoku Suprême n° 037 : Page 41 - Gr 38
L7C8 -4- L1C8 =4=6= L1C8 -6- L3C7 =6= L3C3 -6-1- L3C3 =1= L2C3 -1- L2C5 =1=7= L2C5 -7- L7C5 =7= L7C8 donc L7C8 ≠ 4