Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 9 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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