Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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