Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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