Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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