Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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