Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 5 is invalid. The middle left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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