Hi, Many people suppose that good back links are able to improve site PR only. Site www.unknownland.com.kg has PR 3 and hasn't any back links. This site exists from 2003 year. Is the life time important for PR? The site has low competition keywords. Is it main circumstance?
why do you think it hasn't any backlinks? http://checkpagerank.net/index.php?name=www.unknownland.com.kg+&links=1