Langer's Sudoku Assistant

Invalid Sudoku!

Column 4 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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