Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Go back and make a different choice.

 

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

 

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