Langer's Sudoku Assistant

Invalid Sudoku!

Row 3 is invalid. Column 9 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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