Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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