Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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