Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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