Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 4 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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