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.

 

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

 

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