PlaySudoku.us
Hard · Puzzle #686
9
6
4
2
3
8
6
2
7
1
1
6
4
9
4
8
2
5
9
8
7
2
7
1
1
8
"In chess, as in life, a man is his own most dangerous opponent." — Vasily Smyslov
"In chess, as in life, a man is his own most dangerous opponent." — Vasily Smyslov
"The noblest pleasure is the joy of understanding." — Leonardo da Vinci
"The noblest pleasure is the joy of understanding." — Leonardo da Vinci