Langer's Sudoku Assistant

Invalid Sudoku!

Row 2 is invalid. The top center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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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