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

 

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