Watch the broadcast of round 4 of the strongest chess tournament ever! Hosts FM Kostya Kavutskiy and GM Melik Khachiyan show the finish to two tense games. Could Nakamura hold the worse endgame against Aronian? Could Kamsky avoid yet another loss? Would Nakamura be able to retain his tournament lead over Carlsen? The round was crucial to the final outcome and to the $70,000 first prize!