Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 4 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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