Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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