Viswanathan Anand, playing white pieces, takes Magnus Carlsen on for the eighth game of the World Chess Championship under way in Sochi. (Full Chess Coverage)
Norway's Carlsen currently leads the match by one point but Anand has the opportunity to take the lead if he wins today. Both men played out a marathon draw on Monday in a game which involved 122 moves, one of the longest in the history of the game.
Anand, who is looking for his sixth world title, had lost to Carlsen in Chennai last year.