for fun.
Why Do You Play Chess
I have to agree with Flowers, it is fun. Chess is something one can play with friends. Unfortunately for me, none of my friends play chess. (:
Trying to be a master in future. Never for fun. I'm trying very hardly.
Yeah, I too am hardly trying.
I play because it makes my muscles big and improves my chances with the ladies.
PrawnEatsPrawn : Are you talking about Wrestling? But we're talking about chess !
PrawnEatsPrawn : Are you talking about Wrestling? But we're talking about chess !
Wrestling? you know my (other) secret!? If the WWE find out about my chess-playing activities I'll be labelled a wuss! Shhhh!
The Masked Prawn.

Why do I play chess... lol very easy for me to answer. I play for the women, the money, and the renown ;) LOL as if... eh? No, I play chess because it challenges my mind.
I think it's the most fun mental workout there is. If computer games were as mentally demanding as chess I probably wouldn't play chess.
I work, train and play in chess diligently because it is recreating a whole new brain inside of my skull. This allows me to deal with things differently. I become more efficient. My engagement with all around me is stepped up to enhanced realms of being. I relate to things in a more multi dimensional way.
Lmao.. Some of these posts are so funny! I play because smart people play chess! It's so amusing watching them plot against me! 
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I'll start.
I play chess because it stops my rusty 40+ brain from getting any rustier - and because I love the game even though I'll never get much better (just see some of my recent losses!).
What's your reason.