Langer's Sudoku Assistant

Invalid Sudoku!

Row 4 is invalid. Column 6 is invalid. The top center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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