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

 

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