Langer's Sudoku Assistant

Invalid Sudoku!

Row 2 is invalid. Column 4 is invalid. Go back and make a different choice.

 

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

 

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