Langer's Sudoku Assistant

Invalid Sudoku!

Row 1 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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