Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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