Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 8 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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