Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 7 is invalid. Go back and make a different choice.

 

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

 

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