Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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