Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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