Langer's Sudoku Assistant

Invalid Sudoku!

Row 2 is invalid. Go back and make a different choice.

 

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

 

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