Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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