The Importance of Recovering in a Game

"It was very up and down. I won three on my first four and then I scored minus one in the last half," says Magnus Carlsen. "I don't think you were ever plus four, right? You're plus three at all times, and then you drop back to plus two." He's been signaling his reluctance to kind of play or at least compete at the highest level in class classical chess - Carlsen.