Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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