Langer's Sudoku Assistant

Invalid Sudoku!

Column 7 is invalid. Go back and make a different choice.

 

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

 

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