Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 5 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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