Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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