PlaySudoku.us
Hard · Puzzle #660
1
9
7
3
1
4
9
7
9
3
6
4
9
2
4
1
7
6
2
6
5
4
7
3
1
5
4
9
"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