Langer's Sudoku Assistant

Invalid Sudoku!

Column 8 is invalid. Go back and make a different choice.

 

4
5
3
1
6
7
8
2
9
2
7
1
9
      3
      6
       
8
5
      3
      6
       
4
6
8
9
2
5
4
7
1
3
2
1
6
9
7
4
3
8
5
8
4
3
6
1
5
7
9
2
9
5
7
8
2
1  2  3
4  5  6
7  8  9
1
4
6
6
4
2
7
3
1
5
9
8
1
5
9
4
8
6
3
2
7
3
7
8
5
9
2
4
6
1

 

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