Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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