Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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