Langer's Sudoku Assistant

Invalid Sudoku!

Column 5 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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