Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Go back and make a different choice.

 

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

 

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