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.

 

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

 

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