Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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Take any Sudoku puzzle you are having trouble with -- or any one at all -- and enter the initial values. With each entry the proscribed options are eliminated for you

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