Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 6 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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