Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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