Playing chess for many people is mostly an activity conducted for enjoyment and perhaps a degree of mental sharpening, but in the wide reach that it enjoys throughout world cultures, it also has the feature of being the subject for some large organizations which organize competitions for people to play chess, providing a highly practiced, professional element to the game which can thus serve to identify the players of whom it can be said that they are the best at playing chess in the world. Though many groups exist which are principally concerned with the skill shown in the task of playing chess, perhaps the most significant such organization is that of FIDE, the Federation Internationale des Eches, sometimes also referred to by English-speaking people as the World Chess Federation. Existing on an international basis, it exists for the sake of providing an organized and systematic mode of contact between people who like to play chess and have attained a high degree of skill in doing so, as well as giving certification or organizational frameworks to many of the well-known competitions at which people play chess at a highly competitive level.