Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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