Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 7 is invalid. Go back and make a different choice.

 

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

 

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