Sofia Rules and football-style scoring (three points for a win and one for a draw) were used to discourage draws. Anand was declared winner of the Elite tournament on tie-break, due to scoring the only win with the black pieces. Guest appearances were made by former world champion Garry Kasparov, London Mayor Boris Johnson and Kenneth Rogoff, among others. Online commentators included Nigel Short, Danny King, Lawrence Trent, Chris Ward and David Howell. Analysis room commentary at the venue was provided by Julian Hodgson. With a shorter than usual main tournament, greater emphasis was placed on the additional festival events this year, with the elite players participating in the rapidplay and blitz tournaments. The Elite Blitz, like the main tournament, was scored using the 'three points for a win, one point for a draw' system. Adams was the winner, on tie-break from Nakamura and Kramnik. Other events were scored in the usual manner (one point for a win and a half point for a draw). Grandmaster simultaneous displays were provided by David Howell and Vladislav Tkachiev. The Pro-Biz Cup event comprised 2-player teams (one professional chess player, partnered by a top business leader, taking alternate moves) in a knockout format. Elite Blitz: Michael Adams, Hikaru Nakamura, Vladimir Kramnik 17/30, Anish Giri 16, Viswanathan Anand 10, Fabiano Caruana 9 (6 players, double round robin). Super Rapidplay Open: Hikaru Nakamura 9½/10, Anish Giri 8½, Fabiano Caruana, Viswanathan Anand, Vladimir Kramnik, Nigel Short, Aleksandr Lenderman, Eric Hansen, Daniel Naroditsky, Nicholas Pert, Alon Greenfeld, Simon Williams 8 ... (405 players). FIDE Open: Kamil Dragun, Bai Jinshi 7½/9, Vladislav Tkachiev, Bartosz Socko, Aleksandr Lenderman, Alexandr Fier, Alon Greenfeld, Jacek Stopa 7 ... (211 players). Challenge Match: Gawain Jones defeated Romain Edouard by 4–2. Final game 6 was played at Heathfield School, Hampstead, on December 15 (otherwise held alongside the main tournament). Pro-Biz Cup: Anish Giri and Rajko Vujatovic (Bank of America, Merrill Lynch) defeated Vladimir Kramnik and Russell Picot (HSBC) in the final.