Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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