Sven Magnus Øen Carlsen (Norwegian: [sv?n 'm??n?s ø?n 'k???sn?]; born 30 November 1990) is a Norwegian chess grandmaster and the current World Chess Champion.
In addition to his success in classical chess, he is also a two-time World Rapid Chess Champion and four-time World Blitz Chess Champion.
Carlsen first reached the top of the FIDE world rankings in 2010, and trails only Garry Kasparov at time spent as the highest rated player in the world.
His peak classical rating of 2882 is the highest in history.
A chess prodigy, Carlsen tied for first place in the World U12 Chess Championship in 2002.
Shortly after turning 13, he finished first in the C group of the Corus chess tournament, and earned the grandmaster title a few months later.
At age 15, he won the Norwegian Chess Championship, and at 17, he finished joint first in the top group of Corus.
He surpassed a rating of 2800 at age 18 and reached number one in the FIDE world rankings aged 19, becoming the youngest person ever to achieve those feats.
Carlsen became World Chess Champion in 2013 by defeating Viswanathan Anand.
In the following year, he retained his title against Anand, and won both the 2014 World Rapid Championship and World Blitz Championship, thus becoming the first player to hold all three titles simultaneously.
He defended his classical world title against Sergey Karjakin in 2016, and against Fabiano Caruana in 2018.
Known for his attacking style as a teenager, Carlsen has since developed into a universal player.
He uses a variety of openings to make it more difficult for opponents to prepare against him and reduce the effect of computer analysis.
He has stated the middlegame is his favourite part of the game as it "comes down to pure chess".
His positional mastery and endgame prowess have drawn comparisons to those of former World Champions Bobby Fischer, Anatoly Karpov, Vasily Smyslov, and José Raúl Capablanca.