Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 5 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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