PlaySudoku.us
Hard · Puzzle #643
2
4
7
3
4
9
1
6
7
3
1
9
5
2
6
9
7
8
1
9
6
7
6
4
3
1
8
"Life would be tragic if it weren't funny." — Stephen Hawking
"Life would be tragic if it weren't funny." — Stephen Hawking
"Knowing yourself is the beginning of all wisdom." — Aristotle
"Knowing yourself is the beginning of all wisdom." — Aristotle