Langer's Sudoku Assistant

Invalid Sudoku!

Column 6 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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