Argentine Grandmaster (2001), FIDE Senior Trainer (2015). Argentine vice champion in 1998 and 2002. Panamerian U20 Champion in 2004. Best results: Andorra 1991, 2nd; Najdorf Open 1995, 1st; Mar del Plata Open 1995, 1999 and 2001, 1st; Villa Belester 1999, 2nd; Vicente Lopez (ARG) 2003, 2nd; Villa Martelli 2008, 2nd; Magistral Internacional Grafica Yael –

US Grandmaster (1991) born in Latvia. US Champion in 1993, 2000 and 2007. Discovered the game of chess by watching his father play with his friends. He soon proved to be of talent by winning the highly competitive U16 Championship of the Soviet Union in 1982. Among his chess teachers were the late Mikhail Tal

German Grandmaster. Vice champion of West Germany in 1989. Best results: won or shared first in Oberwart 1986, Luxembourg 1988, Budapest Noviki 1989, Groningen Open and Prague 1990, Leeuwarden 1992, Andorra 1992, Bad Worishofen 1992, Gausdal 1994, Liechtenstein Open 1999, Tuebingen and Travemuender 2001, Crailshamer 2002, Velden Open 2008. Peak rating: 2504 in 2003.

Greek Grandmaster (1990). Coach. Greek Champion in 1981, 1984, 1989 and 1993. Twice Greek Junior Champion. He was awarded a gold medal for the best individual score at board 2 in the 1992 European Team Championship and a bronze medal for the third place in the World Junior Championship in 1977. Best results: won or shared first

English Grandmaster (2009). British Under 10 Champion 1997, England Under 11 Champion 1998, British Under 18 Champion 2005 and British Under 21 Champion in 2005, 2006, 2007, 2008. Best results: EU Individual Open Chess Championship 2006, 2nd; British championship 2007, 2nd. A member of the English team at the 2009 European Team Championship. Peak rating:

Georgian Grandmaster. Georgian Champion 2002, European U18 vice champion in 1998. Best results: Georgian championship 2000, 2nd; Dresden ZMD Open 2006, 1st, President Cup (AZE) 2006, 2-6th; Ravana Challenge (SRI) 2009, 1-2nd; Prospero A. Pichay Jr. Cup (PHI), 1-2nd; Tbilisi Municipality Cup 2009, 2nd; Leros Open (GRE) 2009, 1-2nd; United Insurance & United Leasing Grandmasters

Argentine Grandmaster (1998). Teacher. Vice champion of Argentine in 1997. Argentine U26 Champion. Best results: Won or shared first at Gran Prix Nacional (1987 and 1993), Lingby Open, Avignon and Le Touquet in 1988, Sevilla and Alcobendas in 1992, Napoli Open 1993, Villa Martelli 1996, Sao Polo Open and Linz Open in 1997, Buenos Aires

Danish Grandmaster, Danish Champion in 1988, Vice-Champion in 2008. Best results: won or shared first at Aarhus Master 1986, Scandic Cup 1991, 1995, 1997 and 1998, KS Summer 1995 1998, 2008 and 1998. A participant in eight Olympiads between 1988 and 2016 and in more than 20 Danish championships. The author Playing the Queen’s Gambit (2009),

Bosnian Grandmaster (2007). Best results: Opatija 2002, 1st; UMAG Championship (CRO) 2004, 1st; Subasic Mem. 2005, 1st-4th; Zagreb Open 2006, 2nd-6th; Vogosca (BIH) 2007, 1st; Bosnia championship 2007, 3rd; Paula Open 2008, 2nd-15th; Zadar Open 2009, 2nd-4th. A  participant in the 2006 and 2008 Olympiads. Peak rating: 2572 in 2013.

Chinese Grandmaster (2017) and Women Grandmaster (2014). Chinese Women’s Champion in 2017. Silver medalist in the Women’s World Rapid Chess Championship in 2017. Best results: 4th China Women Masters Tournament in Wuxi 2014, 1st; Moscow Open G3 2015, 1st; 32nd Böblingen International Open 2015, 1-4th;  6th China Women Masters Tournament in Wuxi 2016, 1st; Sevilla Open 2018, 1st. Peak rating: 2545 in