Go (game)
Go is an abstract strategy board game for two players, in which the aim is to surround more territory than the opponent. The game was invented in China more than 2,500 years ago and is believed to be the oldest board game continuously played to the present day. 
A 2016 survey by the International Go Federation's 75 member nations found that there are over 46 million people worldwide who know how to play Go and over 20 million current players, the majority of whom live in East Asia.
Sunjang baduk
Sunjang baduk (Korean: 순장바둑) is a variant of the game go (known as "baduk" in Korean) played in Korea which dates to the 16th century. It became obscure in the 1950s when it was largely replaced by modern go due to Japanese influence. There are around 45 surviving game records of Sunjang baduk, mostly from the 1880s. The oldest known game record was published in the "Chosun Ilbo" newspaper on March 1937, although the game was played much earlier. The game is between No Sa-ch'o and Ch'ae Keuk-mun. Sunjang baduk is played on a 19x19 board with 17 marked points which are used as indicators. The first 16 stones are put in a preset pattern on the marked points and black must make their first move on the Tengen (the center point on the board). Due to the prescribed nature of the opening, games tend to be aggressive which leads to fierce middle game fighting.