Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Go back and make a different choice.

 

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

 

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