Aleksander Delchev is a Bulgaria

Bulgaria

Bulgaria , officially the Republic of Bulgaria , is a parliamentary democracy within a unitary constitutional republic in Southeast Europe. The country borders Romania to the north, Serbia and Macedonia to the west, Greece and Turkey to the south, as well as the Black Sea to the east...

n chess

Chess

Chess is a two-player board game played on a chessboard, a square-checkered board with 64 squares arranged in an eight-by-eight grid. It is one of the world's most popular games, played by millions of people worldwide at home, in clubs, online, by correspondence, and in tournaments.Each player...

 grandmaster. He won the Bulgarian Chess Championship

Bulgarian Chess Championship

The Bulgarian Chess Championship is an event inaugurated in 1933 to crown the best chess player in Bulgaria. The championship has been held on a nearly annual basis since, with only a few years missed...

 in 1994, 1996 and 2001. He participated in five Chess Olympiads with a performance of 60.4% (+20=24-9).

Selected tournament victories include the European Junior Chess Championship

European Junior Chess Championship

The first chess youth championship in Europe was the yearly European Junior Championship for under age 20. It was played from 1971–2002. FIDE officially introduced the European Junior Championship in 1970 at their Annual Congress and so the 1971/72 edition was the first official European...

 (1991–1992), the 47th Reggio Emilia chess tournament

Reggio Emilia chess tournament

The Reggio Emilia chess tournament is a chess tournament played in Reggio Emilia, Italy. In Italian the tournament is called Torneo di Capodanno , as it starts just after Christmas and ends on the day of Epiphany...

 (2004–2005), 4th Open Master at the Sixth International Chess Festival in Benidorm

Benidorm

Benidorm is a coastal town and municipality located in the comarca of Marina Baixa, in the province of Alicante, Valencian community, Spain, by the Western Mediterranean....

 (2007) and the International Open Championship of Croatia

Croatia

Croatia , officially the Republic of Croatia , is a unitary democratic parliamentary republic in Europe at the crossroads of the Mitteleuropa, the Balkans, and the Mediterranean. Its capital and largest city is Zagreb. The country is divided into 20 counties and the city of Zagreb. Croatia covers ...

 (2007). In 2011 he tied for 2nd-7th with Julio Granda

Julio Granda

Julio Ernesto Granda Zúñiga is a Peruvian chess Grandmaster.In his coastal town, he learned how to play chess at the very young age of five....

, Ivan Šarić

Ivan Šaric (chess player)

Ivan Šarić is a Croatian chess Grandmaster. He is the 2007 U18 European Youth Chess Champion and the 2008 U18 World Youth Chess Champion. In 2011 he tied for 2nd-7th with Julio Granda, Aleksander Delchev, Maxim Turov, Pablo Almagro Llamas and Mihail Marin the 31st Villa de Benasque Open.-External...

, Pablo Almagro Llamas, Maxim Turov

Maxim Turov

Maxim Turov is a Russian chess Grandmaster .In 2005 and 2011 he won the Dutch Open Championship in Dieren. In 2009, came second in Doroshkevich Memorial, first in Eforie Nord, in Nordhausen Open and in Faaker See Open...

 and Mihail Marin

Mihail Marin

Mihail Marin is a Romanian chess Grandmaster. As of July 2011, his FIDE rating is 2548. Marin's first major success in international chess was in qualifying for the Interzonal in 1987. He has won three Romanian Championships and has played in the Chess Olympiads ten times, winning a bronze...

 the 31st Villa de Benasque

Benasque

Benasque or Benasc is a town in the comarca of Ribagorza, province of Huesca, . It is the main town in the Benasque Valley, located in the heart of the Pyrenees and surrounded by the highest peaks in that range.-Language:...

 Open.

He is the author of two books on opening theory:

• The Safest Sicilian with International Master Semko Semkov. Provides an opening repertoire for black in the Taimanov variation
  Taimanov Variation
  The Taimanov Variation can refer to variations of four different chess openings, all named after Mark Taimanov:*In the Sicilian Defense, 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6*In the Nimzo-Indian Defense, 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 Nc6...
  
   of the Sicilian Defense. http://www.amazon.com/dp/9548782456
• The Safest Grunfeld with Evgenij Agrest. Provides an opening repertoire for black in the Grunfeld Defence
  Grünfeld Defence
  The Grünfeld Defence is a chess opening characterised by the moves:-History:The first instance of this opening is in an 1855 game by Moheschunder Bannerjee, an Indian player who had transitioned from Indian chess rules, playing black against John Cochrane in Calcutta, in May 1855: 1. d4 Nf6 2. c4...
  
  . http://www.amazon.com/dp/9548782812

External links