Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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