Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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