Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Go back and make a different choice.

 

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

 

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