Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 5 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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