Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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