Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 7 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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