Alexander Delchev is the European Grand Prix winner in 2004. He has played in many Olympiads for Bulgaria. His best Elo was 2669, current rating - 2604. Delchev is the author of The Most Flexible Sicilian, The Safest Sicilian, The Safest Grünfeld and The Modern Reti. Semko Semkov played for Bulgaria in one Olympiad. He is a chess journalist and theoretician. He has authored Kill K.I.D. and four other books.