Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 3 is invalid. The bottom left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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