Langer's Sudoku Assistant

Invalid Sudoku!

Column 2 is invalid. Go back and make a different choice.

 

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

 

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