Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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