Langer's Sudoku Assistant

Invalid Sudoku!

Column 9 is invalid. Go back and make a different choice.

 

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

 

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