Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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