Who is the chess king in the connotation paragraph?

Deng Youbang made a living by playing chess and begging for more than ten years. He loved chess all his life. He sets up a stall in the square to play chess every day. He bet on 2 yuan. He won, others gave him 2 yuan, and he lost. Others don't want his money. Life has changed dramatically! To put it bluntly, he is a homeless old man who loves to play chess. Later, it was adopted by the "live broadcast team" and was called "the best chess in the world" and "the king of chess and ghosts" by Jianghu people.

Extended data:

Deng Youbang, a native of Shiqiao, Nanjing, Jiangsu Province, usually lives in bridge opening, and often appears in Farmer Lane in Lanzhou, earning a living by begging.