Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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