Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 5 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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