WHAT IS CHESS ?

 Chess is a recreational and competitive board game played between two players. It is sometimes called Western or international chess to distinguish it from related games such as xiangqi. The current form of the game emerged in Southern Europe during the second half of the 15th century after evolving from similar, much older games of Indian and Persian origin. Today, chess 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.

Theory of chess - Chess has an extensive literature. In 1913, the chess historian H.J.R. Murray estimated the total number of books, magazines, and chess  columns in newspapers to be about 5,000. B.H. Wood estimated the number, as of 1949, to be about 20,000 David Hooper and Kenneth Whyld write that, "Since then there has been a steady increase year by year of the number of new chess publications. No one knows how many have been printed. There are two significant public chess libraries: the John G. White Chess and Checkers Collection at Cleveland Public Library, with over 32,000 chess books and over 6,000 bound volumes of chess periodicals; and the Chess & Draughts collection at the National Library of the Netherlands, with about 30,000 books. 

HISTORY OF CHESS- The earliest texts referring to the origins of chess date from the beginning of the 7th century. Three are written in Pahlavi (Middle Persian) and one, the Harshacharita, is in Sanskrit. One of these texts, the Chatrang-namak, represents one of the earliest written accounts of chess. The narrator Bozorgmehr explains that Chatrang, the Pahlavi word for chess, was introduced to Persia by 'Dewasarm, a great ruler of India' during the reign of Khosrow I.