Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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