Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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