Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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