Magnus Carlsen is a multi-time chess world champion - but his career has not been without controversy. Carlsen, 34, is the world No.1 and has won the Blitz World Championship eight times.

the two grandmasters – friends and rivals since the age of 12 – were declared joint world champions with the $90,000 first prize to be shared. Magnus Carlsen and his Russian opponent ...

Chess star Magnus ... In December, Carlsen surprised fans by withdrawing halfway through the World Rapid Championship due to a disagreement with FIDE. After playing eight of the 13 rounds, he ...