Langer's Sudoku Assistant

Invalid Sudoku!

Row 2 is invalid. Column 9 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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