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.

 

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

 

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