Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Go back and make a different choice.

 

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

 

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