Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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