Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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