Russian challenges Norway's Carlsen for world chess crown

Russian chess master Sergei Karyakin squares off against reigning world champion Magnus Carlsen from Norway on Friday in an East-West clash that has sparked memories of classic Cold War encounters. The 600,000-euro ($668,000) match in New York will be the youngest ever by cumulative age for the biggest crown in chess, with Carlsen, 25, favourite to beat challenger Karyakin, 26. "It is a very, very long time since we have had a match where the players are the same age," Russian chess legend Anato