Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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