Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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