PlaySudoku.us
Medium · Puzzle #629
3
9
7
1
7
2
6
9
8
6
3
1
4
7
5
6
2
4
5
9
1
1
9
4
6
5
7
8
1
7
1
8
4
"Mathematics is not about numbers, equations, or algorithms — it is about understanding." — William Paul Thurston
"Mathematics is not about numbers, equations, or algorithms — it is about understanding." — William Paul Thurston
"Mathematics is not about numbers, equations, or algorithms — it is about understanding." — William Paul Thurston
"Mathematics is not about numbers, equations, or algorithms — it is about understanding." — William Paul Thurston