Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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