Langer's Sudoku Assistant

Invalid Sudoku!

Column 7 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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