Langer's Sudoku Assistant

Invalid Sudoku!

Column 4 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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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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