Langer's Sudoku Assistant

Invalid Sudoku!

Row 3 is invalid. Column 3 is invalid. Go back and make a different choice.

 

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

 

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