PlaySudoku.us
Hard · Puzzle #723
7
4
1
5
2
8
2
8
4
1
6
2
8
9
6
9
1
2
4
3
8
3
9
5
4
1
2
7
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