Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 7 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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