Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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