Chess, as a board game, is one of the most challenging and complex activities you can do in your free time or if you feel like having a duel with one of your colleagues or college mates.

Related stories More than anything else, the internet has transformed how chess is played and talked about. It has infused the 1,500-year-old game with modern video-game sensibilities and smack talk.

The full list of ... of National Chess Federations. Chess is nowadays a truly global sport, with dozens of millions of players in all the continents, and more than 60 million games on average ...