PlaySudoku.us
Medium · Puzzle #566
5
1
8
1
3
7
2
1
7
8
3
6
8
1
9
2
8
4
7
1
9
3
8
4
5
1
2
9
2
7
8
5
4
6
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