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.

 

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

 

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