Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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