Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 7 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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