Claim: The World Chess Championship 2013 was a match between reigning world champion Anand and challenger Carlson who is a Norwegian chess grandmaster.
Evidence: The World Chess Championship 2013 was a match between reigning world champion Viswanathan Anand and challenger Magnus Carlsen, to determine the 2013 World Chess Champion. Sven Magnus Øen Carlsen (Norwegian: [svɛn ˈmɑ̀ŋnʉs øːn ˈkɑːlsn̩; born 30 November 1990) is a Norwegian chess grandmaster who is the current World Chess Champion, World Rapid Chess Champion, and World Blitz Chess Champion.