Sudoku Suprême n° 039 : Page 42 - Gr 39
L6C8 -2- L9C8 =2=5= L9C8 -5- L9C1 =5=6= L9C1 -6- L1C1 =6=7= L1C1 -7- L1C8 =7= L3C8 -7-9- L3C8 =9= L6C8 donc L6C8 ≠ 2