Introduction to flag throwing game.

Ou Opera or Ou Opera (Korean:? Or? ), also transliterated as Utz, was called four-dimensional and four-dimensional drama in ancient China, which was recorded in Han Dynasty and Jin Dynasty. Now it is a traditional game of the Korean nation. Usually more than two participants decide the number of steps they take on the chessboard by throwing four special chessboards. Although the origin of the long drama is still inconclusive, according to some studies, it is mentioned in Magnolia at Peace that some people in Baekje play games similar to the West Indian Cross Drama, which originated in India. Therefore, they believe that this kind of game has been played on the Korean peninsula at least during the Three Kingdoms period. Long plays are often used as fortune-telling among the people, especially in mountainous areas or rural areas, but they are rare now.