Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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