Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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