Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Go back and make a different choice.

 

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

 

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