Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 5 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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