Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 6 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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