PlaySudoku.us
Medium · Puzzle #518
5
7
2
1
5
8
2
1
7
5
2
1
9
9
6
7
2
2
9
8
4
2
4
6
8
3
7
4
2
8
9
6
4
"It's not that I'm so smart, it's just that I stay with problems longer." — Albert Einstein
"It's not that I'm so smart, it's just that I stay with problems longer." — Albert Einstein
"It's not that I'm so smart, it's just that I stay with problems longer." — Albert Einstein
"It's not that I'm so smart, it's just that I stay with problems longer." — Albert Einstein