The basics of mahjong are the same everywhere: draw a tile, discard a tile, and build four sets plus a pair. What changes is how many tiles are in the set, how many you hold, and the big one: how a hand is scored.
These six are the most widely played styles, and you can play every one of them free against the computer on our network. Not sure where to start? Pick the one your friends or family play, or head back to the home page and practise the basics first.