Langer's Sudoku Assistant

Invalid Sudoku!

Row 1 is invalid. Column 6 is invalid. The top center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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