Vintage Wood Go Game Board

Mid-Century Solid wood GO Board, made in Japan, 1/2 inch thick folding wood panels and the board measures 17 3/8" X 17 3/8"

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.^[1][2] 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

https://en.wikipedia.org/wiki/Go_(game)