Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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