Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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