Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

Start Over

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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