"The horse test in the spring in the Liu camp, and the military talks in the barracks at night" is a couplet presented by King Li Jin of the Tang Dynasty to Zhou Dewei. The couplet tells the story of Zhou Yafu, a famous general in the Han Dynasty. This column injects new content into the "night talk in the barracks": in the old days, "lantern riddles" were also called "shooting tigers". We call this column "barracks", and the topics of discussion are all related to literature and lantern riddles.