Serbian Grandmaster. Best results: Hallein Open 1988, 2nd; Prtotein (CRO) 2001, 1st; Belgrade GM 2001, 1st; Stara Pazova – Ilindan 2009, 1st. Chess trainer for 20 years. Author of Sicilian Dragon: the complete black repertoire (1994) and Sicilian with: 1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7; The complete white repertoire (1998). Best ELO: 2508 in 1999.

Montenegro Grandmaster (1995), FIDE Trainer (2005). Kosic was vice-champion of Yugoslavia in 1990, 1994 and 2003, Montenegro Champion in 2001, 2007 and 2010. Winner or shared first in Reggio Emilia 1988/1989, San Bernardino 1990, Cetinje 1993, Ontario Open 1998, Novi Becej Open 2002, Boskovic Memorial 2003, Novi Sad 2005, Budapest FS08 2008, Stara Pazova Open

Russian Grandmaster (2004) and Woman Grandmaster (1998) living in Florida (USA). The 12th Women’s World Champion (2008-2010), European Women Champion 2004, Russian Women Champion in 2005, European Girls U10 in 1994 and European Girls U12 in 1996.  In 2001, she was finalist of the Women’s World Championship 2001 but was defeated by Zhu Chen. In

Serbian Grandmaster (2005). Best results: Cortina Festival 2004, 1st-2nd; Munich Schachturn 2004, 1st; Divcibare (SER), 1st and Valjevo Zepter GM (SER) 2005, 1st. Best ELO: 2502 in 2005.

Dutch problemist. He has composed about 800 problems in two and three moves.

Irish well known player and problemist during the middle of the XIX century he  was also the editor of the Illustrated London News from 1876 to 1888.

Latvian chess composer, prominent specialist in modern two-mover problems. He popularized the ideas of move-functions changes. For many years he was the editor of the composition section in “Chess Magazine” (Riga). Author of “Šaha kompozicija padomju Latvijā” (Riga, 1961).

Spanish Grandmaster (2006) born in Uzbekistan. Khamrakulov was the World U16 and Asian U16 Champion in 1998. He also won the bronze at the Spanish Championship in 2007. Best results: North West Cup (GER) 2001, 1st; Valencia Open 2001, 1st; Malaga Open 2004, 1st; Sevilla Open 2005, 1st-2nd; Salou and La Roda Open 2007, 1st

Famous Czech chess composer, one of the initiators of the Bohemian School. He became well-known owing to his three-mover problems and right mates. Author of Ceské úlohy Sachové (1877).

Romanian chess composer, Grandmaster for Chess Compositions (1989), International Judge for Chess Compositions (1958). Specialist in problem solving, specific positional draws, artistic studies with more than 200 problems published. Author with Nestprescu of Studii de sah (1984)