PlaySudoku.us
Hard · Puzzle #525
9
4
1
7
2
4
2
5
8
7
2
4
8
8
4
7
5
9
3
4
5
1
7
9
8
2
9
3
"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