Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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