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.

 

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

 

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