Langer's Sudoku Assistant

Invalid Sudoku!

Column 6 is invalid. Go back and make a different choice.

 

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

 

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