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.

 

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

 

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