Langer's Sudoku Assistant

Invalid Sudoku!

Column 6 is invalid. Go back and make a different choice.

 

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

 

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