Chess FIDE country and player rankings - Interactive World Map
This series of interactive maps shows different measures of ranking countries according to FIDE chess ratings. This includes the number of International Masters (IMs) and International Grandmasters per 1 million population, the FIDE (Fédération Internationale des Échecs or World Chess Federation) country ranking and the performance of the top players. FIDE uses the Elo rating system, where Grandmasters usually have a rating above 2500, and International Masters around 2400-2500. Iceland is the strongest chess country adjusting for population (per capita), Serbia is the top "large" country (population over 1 million) in terms of International Masters per capita, and Armenia is the top "large" country in terms of Grandmasters per capita.