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.

 

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

 

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