Langer's Sudoku Assistant

Invalid Sudoku!

Column 6 is invalid. Go back and make a different choice.

 

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

 

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