Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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