After 15 minutes of hmming and harring, had to print the picture and cut the squares out to be convinced of this:

 

 

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Simon

 

[This message has been edited by WillyEd (edited 01-10-2002).]

Nooooo. That cant be right.

 

I just cut the peices up in PSP and put the together. They are exactly the same

http://www-bcs.mit.edu/people/adelson/checkershadow_description.html

 

explained,

That is wicked !!

 

Nice one.

 

 

 

rare it is too