Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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