Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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