Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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