Langer's Sudoku Assistant

Invalid Sudoku!

Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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