https://twitter.com/InvenGlobal/status/1180954142396710912
Blitzchung is wearing a tear gas mask and laughingly says "reclaim Hong Kong, revolution of our time [光復香港 時代革命]" in Mandarin.
This slogan (which is also translated 'Liberate Hong Kong' or 'restore Hong Kong') is ubiquitous in the protests; you can read more about its meaning here: https://www.scmp.com/news/hong-kong/politics/article/3021518...
Blitzchung also issued this statement:
"As you know there are serious protests in my country now. My call on stream was just another form of participation of the protest that I wish to grab more attention. I put so much effort in that social movement in the past few months, that I sometimes couldn't focus on preparing my Grandmaster match. I know what my action on stream means. It could cause me lot of trouble, even my personal safety in real life. But I think it's my duty to say something about the issue."
Source of the statement: https://www.invenglobal.com/articles/9242/hong-kong-player-b...