Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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