Langer's Sudoku Assistant

Invalid Sudoku!

Row 4 is invalid. Column 6 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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