Langer's Sudoku Assistant

Invalid Sudoku!

Column 7 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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