Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 7 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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