Ανοικτός κύκλος παγκόσμιου πρωταθλήματος

Chess's leading individual classical title, now decided through a qualification cycle that culminates in a match for the crown.

An elite competition whose winner earns the right to challenge the World Chess Champion in the next title match.

A major individual FIDE competition that combines a title of its own with qualification places for the Candidates Tournament.

An International Chess Federation (FIDE) tournament using score-based pairings that forms part of World Championship qualification.

An official tournament series that awarded Candidates places in certain world championship cycles.

A historical world-cycle stage bringing together zonal qualifiers and sending leading finishers to the Candidates.