In game four, Carlsen found himself in a new situation. He had to recover from a loss as the World Champion. He pressed for five hours, looking for an error which did not occur.
“I thought I played terribly, but it was a draw so that's OK”, said Carlsen after the long fight. Probably no chess amateur in the world thinks the Norwegian played “terribly” that game. Unless you are a genius, like him, what you will see are some inaccuracies here and there, but nothing serious. Later on, he insisted: “My last two games have been pretty bad so I have to improve.”
See article.