Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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