Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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