Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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