Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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