Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 5 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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