Fabiano Caruana & Magnus Carlsen clash in the World Chess Championship in London this month. CNN Sport talks to the American who is helping make chess cool.

If you want Londoners to come and gawp at something, put it in a glass box. They flocked to see a fasting David Blaine suspended above the Thames. They went nuts for Damien Hirst’s pickled shark. Jeremy Bentham’s severed head gave the greatest queasiness…