What are the format characteristics of piano, chess, calligraphy and painting?

Chyi Chin's calligraphy and painting refers to four kinds of ancient artistic relics or skills, such as harps, weiqi and colors of calligraphy and painting, which are also called elegant people and four excellent products.

Qin, chess, calligraphy and painting all originated in the period of "Three Emperors and Five Emperors" (2607 BC-2 BC110). See the entry "Chronology of Three Emperors and Five Emperors" in this encyclopedia. The following years of the emperor's reign are all quoted from this table), or the "Longshan Cultural Age in the Central Plains" as called by field archaeology.