Langer's Sudoku Assistant

Invalid Sudoku!

Column 8 is invalid. Go back and make a different choice.

 

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

 

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