Langer's Sudoku Assistant

Invalid Sudoku!

Column 5 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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