Medium Sudoku #4193427681571

00:00
2
1
6
4
5
6
7
2
3
7
6
2
9
1
5
1
7
4
5
8
9
6
8
4
6
3
2
2
4
7
6
3
9
3
8
9
6
1
2
3
4
5
6
7
8
9
Erase
Undo
Notes
Hint
?
Solution
Erase