Sparrow Celestial Master can be used in all thirteen-card (i.e. Hong Kong, Guangdong, etc.) and sixteen-card (Taiwan cards) sparrow games, with the following main functions:
． "Bid a few fly": help the user to find out which fly can be bid and the total number of cards in the current card shape
． "Playing side only": help the player to filter out which one can be called the most when there are too many good hands
． "Prevention of rushing": Assuming that another opponent is already bidding, help the player to calculate the probability of our rushing for each card based on the number of remaining cards
． "Practice Mode": The practice mode is divided into four levels of difficulty, with endless questions allowing users to practice at leisure
． "Hong Kong mahjong card number and score calculation": Briefly describe the card number and score calculation of Hong Kong mahjong