KGS Go Server is a popular platform where you can play the ancient game of go (weiqi or baduk) with players from all around the globe. The server offers a range of features including the ability to watch, play, and review games for free. You can sign up for a free account and enjoy the game online using the Shin KGS Web Interface or the GoUniverse Chrome Extension. Additionally, you can download the client and SGF Editor for Windows, Mac, or as a raw JAR file.

Moreover, KGS Plus, which was previously a paid feature, now offers free weekly lectures with professionals and strong amateurs to all users. This service is provided by the American Go Foundation and is sustained by donations to cover server costs, fund improvements, and offer professional lectures. For those in need of assistance, the platform offers help with downloading and installing the client, and also features helpful resources such as the KGS Help Files, Archives, and information on top players and tournaments.