Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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