Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 5 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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