Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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