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.
Tukvnanawopi
Tûkvnanawöpi is a two-player abstract strategy board game played by the Hopi native American Indians of Arizona, United States. The game was traditionally played on a slab of stone, and the board pattern etched on it. Tukvnanawopi resembles draughts and Alquerque. Each player attempts to capture each other's pieces by hopping over them. It is unknown how old the game is; however, the game was published as early as 1907 in Stewart Culin's book "Games of the North American Indians Volume 2: Games of Skill".