Medium Sudoku #3298576123471

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