PlaySudoku.us
Hard · Puzzle #840
9
2
8
8
4
5
6
4
9
3
4
8
6
5
1
9
3
6
6
7
1
9
2
1
8
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