00
:
00
6
8
7
4
3
1
9
5
6
6
5
9
2
3
2
1
4
3
2
7
5
9
6
1
9
4
8
3
6
6
9
4
8
1
7
8
5
4
9
4
8
9
2
7
Number
Corner Notes
Center Notes
Erase
Undo
Auto Notes
Check Solution
Lock Mode
1
9
2
9
3
9
4
9
5
9
6
9
7
9
8
9
9
9
Easy
Medium
Hard
Expert