PlaySudoku.us
Medium · Puzzle #467
9
7
5
1
4
4
2
1
7
8
9
7
9
8
1
5
7
3
8
1
9
5
5
9
6
8
4
3
8
2
2
9
7
5
9
1
"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