Macworld:

Go is about slowly-evolving strategies to surround the largest territory on the board. Each player, black and white, alternates placing stones on a board with a 19-by-19 grid. Building up territory, where the opposing player cannot get a foothold, each player attempts to enlarge his or her territory, and thwart advances and invasions by the opponent.

It’s easy to learn the rules of Go; it’s hard to become really good at the game.

Go is a fascinating game I’ve played (poorly) for years. If you’re looking for something different in your gameplay, check out the apps recommended in the article.