Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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