Hard Sudoku #2138641759290

00:01
7
8
1
9
2
4
2
3
5
9
3
2
7
8
4
5
2
5
6
7
9
2
6
1
9
1
6
8
3
4
1
2
3
4
5
6
7
8
9
Erase
Undo
Notes
Hint
?
Solution
Erase