What is the charge chicken of Guiyang Mahjong?

Also known as hero chicken, the premise is to catch the golden rooster, that is, as long as you draw the card, the chicken in your hand (including the chicken that has been played out and has not been touched by others) will win money, so the first chicken played in each set is twice as much as the chicken that has not been touched by others (excluding the chicken that has not been played out). This is the so-called charge chicken. The purpose is to prevent someone from putting a single chicken in his hand and not playing.