Surely this has been posted already but I had never seen it before and didn't find it while searching these forums.  People submitting souvenir photos of themselves playing chess on roller coasters- hilarious!

http://xkcd.com/chesscoaster/

 

this one is great...

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Fake the pieces would fall at that angle.

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They're taped or glued on I think. But the pics are still cool. Rael had some awesome pics on his profile last I checked.

Ha ha!!This thread is realy funny..........Chess,on roller coasters??Cool

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Possibly magnetic? Must remember to investigate further. (A cookie to anyone who knows from where the reference is.)

I've seen the army one before, but not the rest of them. But thanks for posting.

yes, the pieces have tape on them

Perhaps the people are taped on to the roller coaster and the chess board is holding everthing together?

obviously its fake, they're on a freaking roller coaster lmao. i don't care, i think its hilarious :P

I'm claiming that cookie.

http://www.xkcd.com/249/

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yes, that is the comic that inspired the photos.  it is listed on the webpage with the photos.  pretty great stuff.

Amazing!! Nice Pics =]

in the first pic the woman with the brown tank top has 2 huge bags of flour in her shirt.

The "hand under chin" pose is the tell.

Also, I think Black is busted in that first pic.