Langer's Sudoku Assistant

Invalid Sudoku!

Column 2 is invalid. The middle left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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