As in Carlsen's 2016 title defense, against Russia's Sergey Karjakin, Carlsen needed rounds of rapid chess, 25-minutes games. Carlsen is the world's best at this so-called "rapid" chess.

As for Karjakin’s contender, Magnus Carlsen, Putin said he is "Grandmaster of our time". In reply to the question whether chess should be included in the school program this way or the other ...