Langer's Sudoku Assistant

Invalid Sudoku!

The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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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