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.

 

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

 

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