Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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