Langer's Sudoku Assistant

Invalid Sudoku!

Column 8 is invalid. Go back and make a different choice.

 

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

 

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