Langer's Sudoku Assistant

Invalid Sudoku!

Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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