sexta-feira, 9 de outubro de 2009

Chess






History of chess

Photographs of real-size resin reproductions of the 12th century Lewis chessmen. The top row shows king, queen, and bishop. The bottom row shows knight, rook, and pawn.
The history of chess, specifically that of
Western Chess, spans some 1500 years. The earliest predecessors of the game originated in India in the 6th century AD and spread to Persia from there. When the Arabs conquered Persia chess was taken up by the Muslim world, from where it reached Southern Europe. In Europe, the game evolved into its current form in the 15th century. In the second half of the 19th century, modern tournament play began, and the first world chess championship was held in 1886. The 20th century saw great leaps forward in chess theory and the establishment of the World Chess Federation (FIDE). Developments in the 21st century include the employment of computers for analysis, team consultations, and online gaming.

The precursors of chess originated in
India during the Gupta empire, where its early form in the 6th century was known as chaturaṅga, which translates as "four divisions [of the military]": infantry, cavalry, elephantry, and chariotry, represented by the pieces that would evolve into the modern pawn, knight, bishop, and rook, respectively. In Sassanid Persia around 600 the name became chatrang and the rules were developed further, and players started calling "Shāh!" (Persian for "King!") when attacking the opponent's king, and "Shāh māt!" (Persian for "the king is finished") when the king was attacked and could not escape from attack; these exclamations persisted in chess as it traveled to other lands thereafter.

Map showing origin and diffusion of chess from India to Asia, Africa, and Europe, and the changes in the native names of the game in corresponding places and time
The game was taken up by the
Muslim world after the Islamic conquest of Persia, with the pieces largely retaining their Persian names; in Arabic "māt" or "māta" مَاتَ means "died", "is dead". In Arabic, the game became shatranj. The Moors of North Africa rendered "shatranj" as shaterej which gave rise to the Spanish acedrex, axedrez and ajedrez; in Portuguese it became xadrez, and in Greek zatrikion, but in the rest of Europe it was replaced by versions of the Persian shāh ("king"). Thus, the game came to be called sah in Romanian, šah in Slovene, schach in German, schaken in Dutch, shakki in Finnish, szachy in Polish, scacchi in Italian, šahs in Latvian, skak in Danish, schack in Swedish, escacs in Catalan, and échecs in French (Old French eschecs); there are two theories about why this change happened:

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