Welcome to the official page of the 40th Open Sestao Basque Country – 33rd Masterly Chess International of Basque Country
A tournament to remember
International tournament
Open to federated players of any level and from anywhere in the world.
Prizes
More than 20,000€ in prizes distributed by category and level.
Dates
From September 12 to September 18, 2025.
Rounds
A total of 9.
Classic time control
90 minutes + 30 seconds increment per move.
Valid for FIDE norms
For players seeking a FIDE title.
¿Would you like to take part?
Organizer
Sestao Chess Club
Sponsors
Partners
