Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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