Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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