Langer's Sudoku Assistant

Invalid Sudoku!

Column 1 is invalid. Go back and make a different choice.

 

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

 

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