Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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