Efstratios Grivas, Greek chess player and author
Efstratios Grivas (born March 30, 1966) is a Greek chess player who holds the titles of Grandmaster, FIDE Senior Trainer, International Arbiter, and FIDE International Organizer.
Efstratios Grivas, Greek chess player and author
Efstratios Grivas (born March 30, 1966) is a Greek chess player who holds the titles of Grandmaster, FIDE Senior Trainer, International Arbiter, and FIDE International Organizer.