Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 7 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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