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.

 

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

 

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