In chess , the Kieseritzky Gambit is an opening line in the King's Gambit . It begins with the moves:
8-615: Following Black's attempt to hold the sacrificed pawn by 3...g5, White reacts by immediately undermining the pawn chain. It is one of the main lines of the King's Gambit after 3...g5, and its overall assessment is still unclear but approximately equal. The Encyclopaedia of Chess Openings classifies the Kieseritzky Gambit under code C39. C39 is also the code for the Allgaier Gambit, in which White plays 5.Ng5?!, sacrificing
16-411: A coding system that has also been adopted by other chess publications . There are five main categories, "A" to "E", corresponding to the five volumes of the earlier editions, each of which is further subdivided into 100 subcategories, for a total of 500 codes. The term " ECO " is often used as a shorthand for this coding system. ECO code is a registered trademark of Chess Informant . The first edition
24-428: A small amount of text, which is in several languages. The bulk of the content consists of diagrams of positions and chess moves, annotated with symbols , many of them developed by Chess Informant. Chess Informant pioneered the use of Figurine Algebraic Notation to avoid the use of initials for the names of the pieces, which vary between languages. Instead of the traditional names for the openings, ECO has developed
32-413: The bishop on c4 and the knight on e5 target the pawn on f7, if Black does not protect the pawn, the threat is typically Bxf7+ rather than Nxf7. 6.d4 has been tried as well, although it is regarded by some to be inferior to 6.Bc4. The other main move is 7...Bg7 . Bibliography Encyclopaedia of Chess Openings The Encyclopaedia of Chess Openings ( ECO ) is a reference work describing
40-595: The editors, most of whom are grandmasters , who select the lines which they consider most relevant or critical. The chief editor since the first edition has been Aleksandar Matanović (1930-2023). The openings are provided in an ECO table that concisely presents the opening lines considered most critical by the editors. ECO covers the openings in more detail than rival single volume publications such as Modern Chess Openings and Nunn's Chess Openings , but in less detail than specialized opening books. The books are intended for an international audience and contain only
48-462: The knight for an attack after 5...h6 6.Nxf7 Kxf7. The Allgaier Gambit is considered dubious by modern theory. The opening now known as the Kieseritzky Gambit was first described by Polerio in the late 16th century. Greco also included a game with this opening in his 1620 collection. It was also analyzed by Salvio (1604) and Philidor (1749). In the first edition of the Handbuch in 1843, 5.Ne5
56-682: The state of opening theory in chess , originally published in five volumes from 1974 to 1979 by the Yugoslavian company Šahovski Informator ( Chess Informant ). It is currently undergoing its fifth edition. ECO may also refer to the opening classification system used by the encyclopedia. Both ECO and Chess Informant are published by the Belgrade -based company Šahovski Informator . The moves are taken from thousands of master games and from published analysis in Informant and compiled by
64-564: Was considered under the heading of the Allgaier Gambit, but the editors noted that Kieseritzky had contributed significantly to the theory of 5.Ne5, which they advocated as superior to 5.Ng5 (an opinion shared by almost all subsequent analysts). The corresponding chapter in the second edition of the Handbuch in 1852 was headed "Allgaier and Kieseritzky's Gambit". Subsequently the name Kieseritzky Gambit came into general use for 5.Ne5, Allgaier Gambit being used exclusively for 5.Ng5. Although both
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