I travel a bit. In many towns there are places where a visitor can play chess with strangers. If the weather is nice these games of "unprotected casual chess" are played outdoors in parks or plazas and are public. If you know of such a place, anywhere in the world please email me or post here. Thank you.

Examples are:

Philadelphia - Rittenhouse Square

Chicago - Oak Street Beach

Denver - Downtown 17th Street Mall

Cambridge, MA - Cafe just south on Harvard Square

New York - Washington Square

Hustler tables @ Downtown San Francisco, at Market and Powell.  

Sweden - Gothenburg - City Library bottom floor.

Quite far from America though.

By the Depot in Mill Valley, Ca used to have players.

Agree about Market and Powell- although I don't really reccomend playing there.

Have heard there is chess at Dupont Circle in DC.

Thank you all.  Yes there is chess at Dupont Circle in Wahsington, DC Just to the east south of the Jurys Hotel there is a bookstore where people play.

A pal from Team Catalonia told me people meet on Sundays in Plaça Catalunya in Barcelona to play on Sundays, though I haven't witnessed this myself.

Unprotected casual chess? Sounds like a social disease.

New York - Central Park (they have a chess area with outdoor and indoor tables)

damn, i would have loved to have seen that!

yeah, it was pretty awesome. (went during a trip. I live on west cost :)

Edgewater Park here in Cleveland,Ohio at the beach tables on the beach at lake erie a nice place to play!

"unprotected"?  when is chess ever protected?  you mean, you play without a condom on?

I never play without pawn protection.

Two condoms...over-protection.

No, I said "prophylaxis," not...oh, never mind.

Northport, New york...Overlooking the harbor. I will take a pic and post it for you. Its beautiful.

South Australian Chess Association (SACA) has this facility :-)

Hyde Park Sydney . Big set that you can walk around on the board as well

Fremantle - same as above.

Actually, apparently you won't...so I will: 

Yes, those who practice unprotected chess are vulnerable to what they call "socially transmitted diseases", or STDs for short.