Alicante Beliavsky's clean win with a perfect score of 13/13
Barcelona, independent world-class tournaments Big report
Barcelona, Magistral Ciutat, ongoing
Bilbao, previously called Grand Slam Chess Final
played in Sant Feliu de Guixols et al.
Costa del Sol, played in Torremolinos, Malaga et al.
Dos Hermanas Nine out of the top ten ranked player in a round robin
Lanzarote, Arrecife de Lanzarote
Las Palmas Extended version
León, various formats, today Rapid knock-out, ongoing
Linares / Linares - Morelia (Mex)
Madrid, Magistral The forgotten superseries
Madrid, Prequels; and USSR vs. Rest
of the World (Rapid)
Montilla-Moriles An easy-to-read survey
Olot An easy-to-read survey
Palma de Mallorca
Pamplona Facts & Figures
Terrassa An easy-to-read survey
Zafra et al., Ruy Lopez Festival named after 16th-century Spanish bishop Ruy
López de Segura, offering a Magistral (international invitation tournament) and an Open where the players had to play the Ruy Lopez Opening, sometimes also called the Spanish Opening or the Spanish Game.
Barcelona (ongoing International Chess Open de Sants, Hostafrancs i La Bordeta), Las Palmas, Palma de Mallorca, San Sebastián / Donostia, as well as other spanish cities (eg. Malaga, Sevilla), are also venues of strong Open tournament series as well as Rapid (eg. Villarrobledo, Oviedo) and / or exhibition
events (especially León, pioneering Advanced chess).
Cities hosting one singular classical invitation tournament (eg. Ubeda) and / or Open alone, or organised a match, are not part
of this survey of invitation *serials*
For the record:
Sevilla hosted the World Chess Championship in 1987 between Kasparov and Karpov (12-12). Kasparov kept the title
without any further play-off.
https://www.chess.com/blog/SonofPearl/test-7393 (Chess with videos)
Cazorla, Spain, hosted the World Chess Council WCC (following
the PCA, following the GMA; these organisations were in concurrence to the FIDE during the time of the schism) World Chess Championship Candidates Final Match in 1998 between Kramnik and Shirov to determine the right to challenge Kasparov.
Despite being the underdog, Shirov won with 5.5-3.5 (two wins, no loss!).
However, things went wrong for the nominated Challenger Shirov, instead, it was Kramnik who got a shot for the title, dethroning
reigning Champion Kasparov:
Between 1993 and 2006, the title was split during the schism, there always have been two rivaling international chess bodies (FIDE and GMA / PCA / WCC, then FIDE and Braingames / Einstein) and both arranged World Chess Championships
and crowned World Chess Champions..