Google’s new mini-game on Chinese social networking app WeChat gained huge popularity on its first day, giving the US technology giant another foothold in a market where its core search engine business is banned. The game tasks users to draw an object that Google’s neural network attempts to recognize, and users win points when the machine makes a successful guess. Google AI’s neural network is based upon the world’s biggest sketch database with over 50 million drawings, according to a post on Google’s official WeChat account on Wednesday. The game, called Cai Hua Xiao Ge, which roughly…