Sudoku Maniac

00:03
6
9
2
4
8
5
2
1
9
1
9
4
6
3
5
3
2
4
2
5
3
8
3
7
4
9
3
4
1
6
5
9
7
4
7
9
6
00:03
1
2
3
4
5
6
7
8
9
Undo
Hint
Solve