Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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