Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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