Nobility in the Tang dynasty enjoyed playing yehtsuhsi (a card game). One of the princesses was so addicted that her servants had to keep her room lit up like daytime round the clock so she could play.
唐中宗時的貴族喜歡賭葉子戲，其中同昌公主更是夜以繼日地賭，夜幕低垂了，僕婢們得捧出夜光珠，照得一室耀如白晝。