Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 5 is invalid. Go back and make a different choice.

 

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

 

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