In many other games, pieces are played inside the squares on the board and the board starts with In Japan it is called ' Igo ' and in Korea it is named 'Baduk'. I Go! is an addictive game that gets the whole family thinking on their feet. Quick to learn and easy to play at any moment, it is probably the best card game of the. Welcome to COSUMI! On this site, you can play 5×5 to 19×19 Go(a.k.a. Igo, Baduk, and Weiqi), which is a well-known ancient board game. If you do not know.