Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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