Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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