Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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