PlaySudoku.us
Medium · Puzzle #489
3
6
3
4
1
6
8
4
1
6
3
5
9
6
5
1
8
2
9
8
5
5
1
6
2
3
8
7
5
9
4
"Chess is everything: art, science, and sport." — Anatoly Karpov
"Chess is everything: art, science, and sport." — Anatoly Karpov
"A mathematician is a device for turning coffee into theorems." — Paul Erdős
"A mathematician is a device for turning coffee into theorems." — Paul Erdős