High Quality Content by WIKIPEDIA articles! The Oxford Companion to Chess lists 1,327 named openings and variants. Some openings have been given fanciful names, often names of animals. The Dragon Variation of the Sicilian Defence was named in 1901 after its resemblance of Black`s kingside pawn structure to the constellation Draco, It is one of the sharpest of all chess openings, with ten named sub-variations analysed in Encyclopaedia of Chess Openings.