PlaySudoku.us
Easy · Puzzle #309
8
1
3
1
2
5
8
3
7
4
3
7
4
2
6
5
8
1
9
6
3
6
4
8
5
7
9
1
7
2
3
8
4
2
1
3
8
5
9
5
7
1
6
2
4
7
5
2
1
3
"To ask the right question is harder than to answer it." — Georg Cantor
"To ask the right question is harder than to answer it." — Georg Cantor
"Mathematics knows no races or geographic boundaries; for mathematics, the cultural world is one country." — David Hilbert
"Mathematics knows no races or geographic boundaries; for mathematics, the cultural world is one country." — David Hilbert