Shanghai

[beenawhile]

Hi, this is Taijitaijiquan. Hello to all, and Rip DD.
Life has thrown me around the world yet again, and I will now (semi?) permanently move to Shanghai in 20 days. I have been out of taijiquan or other martial arts for 2 years or so - time to rectify that.
Does anyone here have Shanghai links to the following:

Chen Taijiquan of Ma Hong persuasion (could be Chen Yu as well)?
Grappling akin to jiujitsu?
Muay thai?
Fencing (as in foil, sabre, etc).

Furthermore, I would love to find out if anyone knows of a western chess club in Shanghai.

Cheers,
Pawel