Sven Magnus Øen Carlsen (Norwegian: ; born 30 November 1990) is a Norwegian chess grandmaster and the current World Chess Champion. His peak rating of 2882, achieved in 2014, 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 in 2009 and reached number one in the FIDE world rankings in 2010, becoming the youngest person ever to achieve those feats.
Carlsen became World 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 simultaneously hold all three titles. He defended his main world title against Sergey Karjakin in 2016, and against Fabiano Caruana in 2018.