Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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