Sudoku Suprême n° 037 : Page 58 - Gr 55
L2C6 -9- L9C6 =9=6= L9C6 -6- L8C6 =6= L8C2 -6-7- L8C2 =7= L5C2 -7-1- L5C2 =1= L1C2 -1- L1C6 =1= L2C6 donc L2C6 ≠ 9