Jon Speelman, an English chess player, a Grandmaster, a mathematician, and a chess writer
Jon Speelman | Speelman |
In other competition, he achieved outright or shared first place at Hastings 1973/74 (with Szabó, Tal and Timman), Baku 1977, Tallinn 1979, Kladovo 1980, Dortmund 1981 (with Speelman and Ftáčnik) and Bangalore 1981.