Langer's Sudoku Assistant

Invalid Sudoku!

Column 8 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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