Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 6 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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