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There are other symbols used by various chess engines and publications, such as Chess Informant and Encyclopaedia of Chess Openings, when annotating moves or describing positions. [8] Many of the symbols now have Unicode encodings, but quite a few still require a special chess font with appropriated characters.
That means that, apart from 'equi-optimal' moves, all the moves in such a path are perfect: White's move always leads to the quickest mate, Black's move always leads to the slowest mate." [ 39 ] The retrograde analysis is only necessary from the checkmated positions, because every position that cannot be reached by moving backward from a ...
Natch solves retrograde analysis problems by constructing a "proof game" - the shortest possible game leading to a certain position. Natch is a command line utility, but there is a Java based graphical interface. iNatch also provides moves with fairy conditions: monochrome chess, Einstein chess, vertical cylinder.
In chess problems, retrograde analysis is a technique employed to determine which moves were played leading up to a given position. While this technique is rarely needed for solving ordinary chess problems, there is a whole subgenre of chess problems in which it is an important part; such problems are known as retros.
This glossary of chess explains commonly used terms in chess, in alphabetical order.Some of these terms have their own pages, like fork and pin.For a list of unorthodox chess pieces, see Fairy chess piece; for a list of terms specific to chess problems, see Glossary of chess problems; for a list of named opening lines, see List of chess openings; for a list of chess-related games, see List of ...
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 the editors, most of whom are grandmasters, who select the lines which they consider most relevant or critical.
Chess notation systems are used to record either the moves made or the position of the pieces in a game of chess. Chess notation is used in chess literature, and by players keeping a record of an ongoing game. The earliest systems of notation used lengthy narratives to describe each move; these gradually evolved into more compact notation systems.
After a series of natural moves in the Smith–Morra Gambit of the Sicilian Defence, White can lose a queen. The name appears to result from Boris Schipkov of Novosibirsk in southwestern Siberia . The trap has occurred at least twice in tournament play: Kolenbet–Schipkov, Khabarovsk 1987, and Tesinsky–Magerramov, Budapest 1990.