Amid the riveting World Championship match in Astana, Jon Speelman looks back on the 1963 match for the world title between Mikhail Botvinnik and Tigran Petrosian. “The reason I’m returning to it is not just nostalgia, but because of the parallels between how the World Championship debutants Tigran Petrosian and Ding Liren performed at the start. Both were rather terrified”.
