Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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