Have you played GO? ¿Has jugado GO?

I have not. No lo he jugado.

NO

You can try go against a computer (various strengths & handicaps, various board sizes, and time controls) at http://www.funnode.com/games/go. There are a few human players too, but not too many quite yet as it is a fairly new site.

No registration is needed to play, though if you want an account name they do ask for a email address (to avoid automated spammers), although they don't mind if you use a throwaway account, indeed the maker and administrater (Ravi) of the site suggested I do so.

It's a simple and interesting game, easy to learn but with lots of depth. Worth checking out IMO, if strategy games interest you.

Thanks Tao, I take note.

You're welcome, glad I could be of assistance.

I forgot to mention that that site is run through a server (like chess.com), by which I mean that there is no program to download, as is the case with many other Go sites. Anyone can simply open the page from any location and start playing, with no sign in or other actions needing to be taken.

There are a few other games there as well (chess, checkers, spades, etc.), which is nice if you are looking for some variety.

There are many sites offering correspondence Go.  Go is a very interesting game and the freedom it offers makes systematic study ineffective.  There is an instinct that is taught by the game.  For modern society Go is largely positional, rather than overtly tactical.  International Chess is more applicable to daily life.  Oftentimes it is not position or territory that matters, but timing.  It could be argued that tactics do exist in Go, however the difficulty in knowing how to do this is mind boggling.  Not so in chess, tactics are everywhere.  The other idea that is more freeing in chess is that as the game goes on, pieces disappear and space is created.  In modern day claustrophobic life, this disappearing of pieces and opening of space is tremendously freeing.  Go has a more severe feel than chess however I question its utility in dealing with everyday nonsense.  Additionally while there are certainly many books available it seems that the sheer volume of chess literature outweighs this.  I play both but I study chess more lately.