Sudoku Suprême n° 040 : Page 79 - Gr 76
L2C3 -1- L2C6 =1= L1C5 -1-6- L1C5 =6= L4C5 -6- L4C1 =6=2= L4C1 -2- L6C3 =2=1= L6C3 -1- L2C3 donc L2C3 ≠ 1