PlaySudoku.us
Hard · Puzzle #642
5
6
4
2
4
9
8
7
3
9
6
1
3
6
9
5
2
1
3
7
4
6
5
8
2
2
6
7
"In mathematics, the art of proposing a question must be held of higher value than solving it." — Georg Cantor
"In mathematics, the art of proposing a question must be held of higher value than solving it." — Georg Cantor
"In mathematics, the art of proposing a question must be held of higher value than solving it." — Georg Cantor
"In mathematics, the art of proposing a question must be held of higher value than solving it." — Georg Cantor