Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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