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.

 

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

 

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