umm, did kasparov really lost to deep blue?

Yep!  Of course, there's always a bit of controversy to be found.  For more details, see

 

http://en.wikipedia.org/wiki/IBM_Deep_Blue 

another question, what does "points" signify?

It indicates your activity in the site.  If you post, that's 1 point; if you write a blog, that's 2 points, etc., and they accumulate.  (I guess you're asking of member points.)

oh.. umm, what about if i want to change my username? how can i do it? is it possible?

 

adj wrote:

oh.. umm, what about if i want to change my username? how can i do it? is it possible?

 

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Not even if you gave erik a thousand dollars. Although maybe ten thousand...