The Candidates tournament to determine the challenger later this year to world champion Magnus Carlsen is now well underway in Moscow. Early indications favoured the former champion Viswanathan Anand, the new young talent Sergei Karjakin, and Lev Aronian, Olympiad gold medallist, all of whom scored in the opening rounds. The main victim of their initial surge was Vesselin Topalov, the former Fidé champion, whose conduct in his games at the start was unrecognisably supine.