Sudoku Suprême n° 039 : Page 40 - Gr 37
L6C3 -7- L1C3 =7= L1C2 -7-5- L1C2 =5= L9C2 -5- L9C7 =5=2= L9C7 -2- L9C5 =2= L6C5 -2-1- L6C5 =1= L6C9 -1-9- L6C9 =9= L6C3 donc L6C3 ≠ 7