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Since then, computer analysis – which originated in the 1970s with the first programmed chess games on the market – has contributed to much of the development in chess theory and has become an important part of preparation in professional human chess. Later developments in the 21st century made the use of computer analysis far surpassing ...
Vinohrady Variation of the Sicilian Defence – 1.e4 c5 2.Nc3 Nc6 3.g4 named after a district in Prague [6] Volga Gambit – 1.d4 Nf6 2.c4 c5 3.d5 b5 (named for the Volga River, the national river of Russia) Voronezh Variation of the Alekhine's Defence – 1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.exd6 cxd6 6.Nc3 g6 7.Be3 Bg7 8.Rc1 0-0 9.b3
After its introduction in Persia, it spread to the Arab world and then to Europe. The modern rules of chess emerged in Europe at the end of the 15th century, with standardization and universal acceptance by the end of the 19th century. Today, chess is one of the world's most popular games, with millions of players worldwide.
c. 720 – Chess spreads across the Islamic world from Persia. c. 840 – Earliest surviving chess problems by Caliph Billah of Baghdad. c. 900 – Entry on Chess in the Chinese work Huan Kwai Lu ('Book of Marvels'). 997 – Versus de scachis is the earliest known work mentioning chess in Christian Western Europe. [2]
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The organization was founded on November 11, 1924 as the Federação Brasileira de Xadrez (Brazilian Chess Federation) [1] and affiliated with FIDE in 1935. [2] It is based in Santa Maria de Jetibá, Espírito Santo. [3] Its president is Darcy Lima, who took office in 2013. [4] [5] It has 19 constituent clubs and 30,000 members. [2]
Gravity chess: After every turn, all pieces other than pawns fall towards the higher ranks of the board, until they either reach the eighth rank, or another piece or pawn in the way. [53] [54] Grid chess: The board is overlaid with a grid of lines. For a move to be legal, it must cross at least one of these lines.
Emanuel Lasker (left) facing incumbent champion Wilhelm Steinitz (right) in Philadelphia during the 1894 World Chess Championship The World Chess Championship has taken various forms over time, including both match and tournament play. While the concept of a world champion of chess had already existed for decades, with several events considered by some to have established the world's foremost ...