Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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