Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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