Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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