Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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