Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 7 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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

JohnLanger.com

© Copyright 2005, John Langer, All Rights Reserved.