Langer's Sudoku Assistant

Invalid Sudoku!

Column 5 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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