Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Go back and make a different choice.

 

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

 

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