PlaySudoku.us
Medium · Puzzle #457
4
6
1
3
2
1
8
9
9
4
1
5
1
3
9
9
4
6
4
1
3
2
4
6
8
6
5
9
4
3
2
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