Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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