Langer's Sudoku Assistant

Invalid Sudoku!

Row 3 is invalid. Go back and make a different choice.

 

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

 

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