Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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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