Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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