Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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