One year ago, the world № 1, Magnus Carlsen, and the global chess body, FIDE, were at loggerheads after the Norwegian was penalised for wearing jeans at the World Rapid Championship in New York. Next week in Doha, Qatar, jeans will be allowed, the title rules have been clarified, and Carlsen will again be the clear favourite to win the Rapid, although the Blitz is more open.