you must be special people to have free copy? sounds strange**
think like a grandmaster

It's a compressed .rar file, I'm assuming you use winzip to unzip files. If you are using winzip, from what I remember, winzip can't extract these files. Get 7-zip, search for it on google, it's free, love that word. With 7-zip you can extract, from that point it's just a normal .pdf file. Enjoy.
I'm trying to access a free copy of the book Think Like a Grandmaster' by Kotov.
http://knowfree.net/2007/10/11/think-like-a-grandmaster.kf
I've downloaded it but don't know which program to use to browse it.
Can anyone help, thanks.