7
8
9
5
3
4
2
4
1
5
6
8
9
4
7
2
6
1
7
5
6
3
8
7
3
1
2
8
6
4
7
1
2
9
3
8
7
6
Solve Me
Unsolve Me
Undo Moves
Erase a number
New Game
Custom Sudoku