PlaySudoku.us
Medium · Puzzle #636
7
1
4
6
8
1
2
3
4
2
4
8
6
3
1
9
3
2
8
1
7
2
6
7
8
1
1
7
3
9
2
7
6
"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
"A journey of a thousand miles begins with a single step." — Laozi
"A journey of a thousand miles begins with a single step." — Laozi