Grasshopper (chess Piece)
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Grasshopper (chess Piece)
The grasshopper is a fairy chess piece that moves along , , and (as a queen) but only by hopping over another piece. The piece to be hopped may be any distance away, but the grasshopper must land on the square immediately behind it in the same direction. If there is no piece to hop over, it cannot move. If the square beyond a piece is occupied by a piece of the opposite color, the grasshopper can capture that piece. The grasshopper may jump over pieces of either color; the piece being jumped over is unaffected. The grasshopper was introduced by T. R. Dawson in 1913 in problems published in the ''Cheltenham Examiner'' newspaper. It is one of the most popular fairy pieces used in chess problems. In this article, the grasshopper is shown as an inverted queen with notation ''G''. Movement In the diagram to the right, the white grasshopper on d4 can move to the squares marked with crosses (b2, d1, d7, and h8) or capture the black pawn on a7. It cannot move to g4, as there are two ...
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Fairy Chess Piece
A fairy chess piece, variant chess piece, unorthodox chess piece, or heterodox chess piece is a chess piece not used in conventional chess but incorporated into certain chess variants and some chess problems. Compared to conventional pieces, fairy pieces vary mostly in the way they move, but they may also follow special rules for capturing, promotions, etc. Because of the distributed and uncoordinated nature of unorthodox chess development, the same piece can have different names, and different pieces can have the same name in various contexts. Most are symbolised as inverted or rotated icons of the standard pieces in diagrams, and the meanings of these "wildcards" must be defined in each context separately. Pieces invented for use in chess variants rather than problems sometimes instead have special icons designed for them, but with some exceptions (the princess, empress, and occasionally amazon), many of these are not used beyond the individual games for which they were invented ...
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Queen (chess)
The queen (♕, ♛) is the most powerful chess piece, piece in the game of chess. It can move any number of squares vertically, horizontally or , combining the powers of the Rook (chess), rook and Bishop (chess), bishop. Each player starts the game with one queen, placed in the middle of the first next to the King (chess), king. Because the queen is the strongest piece, a pawn (chess), pawn is promotion (chess), promoted to a queen in the vast majority of cases. The predecessor to the queen is the ''Ferz (chess), ferz'', a weak piece only able to move or capture one step diagonally, originating from the Persian game of shatranj. The modern queen gained its power and its modern move in Spain in the 15th century during Isabella of Castile, Isabella I's reign, perhaps inspired by her great political power. Placement and movement The white queen starts on d1, while the black queen starts on d8. With the chessboard oriented correctly, the white queen starts on a white square a ...
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Thomas Rayner Dawson
Thomas Rayner Dawson (28 November 1889 – 16 December 1951) was an English chess problemist and is acknowledged as "the father of Fairy Chess". He invented many fairy pieces and new conditions. He introduced the popular fairy pieces grasshopper, nightrider, and many other fairy chess ideas. Career Dawson published his first problem, a two-mover, in 1907. His chess problem compositions include 5,320 fairies, 885 , 97 selfmates, and 138 endings. 120 of his problems have been awarded prizes and 211 honourably mentioned or otherwise commended. He cooperated in chess composition with Charles Masson Fox. Dawson was founder-editor (1922–1931) of ''The Problemist'', the journal of the British Chess Problem Society. He subsequently produced ''The Fairy Chess Review'' (1930–1951), which began as ''The Problemist Fairy Chess Supplement''. At the same time he edited the problem pages of '' The British Chess Magazine'' (1931–1951). Motivation and personality From ''The Oxford Comp ...
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Chess Problem
A chess problem, also called a chess composition, is a puzzle set by the composer using chess pieces on a chess board, which presents the solver with a particular task. For instance, a position may be given with the instruction that White is to move first, and checkmate Black in two moves against any possible defence. A chess problem fundamentally differs from over-the-board play in that the latter involves a struggle between black and white, whereas the former involves a competition between the composer and the solver. Most positions which occur in a chess problem are 'unrealistic' in the sense that they are very unlikely to occur in over-the-board play. There is a good deal of specialized jargon used in connection with chess problems; see glossary of chess problems for a list. Definition The term "chess problem" is not sharply defined: there is no clear demarcation between chess compositions on the one hand and puzzles or tactical exercises on the other. In practice, however, t ...
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Valerian Onitiu
Valerian may refer to: Arts and entertainment * a fictional character in ''Valérian and Laureline'', a comics series **''Valerian and the City of a Thousand Planets'', a film adaptation of the comic series * an early pseudonym for Gary Numan (b. 1958), a musician * a fictional race in "Dramatis Personae" (''Star Trek: Deep Space Nine'') * an arms manufacturer in ''On the Frontier'', a play published in 1938 People * Valerian (name), including a list of people with the given name and surname * Valerian (emperor), Roman emperor from 253 to 260 Plants * Valerian (herb), ''Valeriana officinalis'', a medicinal plant, and the namesake for other valerians. ** other plants in the genus ''Valeriana'' * ''Centranthus'', a genus containing plants closely related to ''Valeriana'' Ships * HMS ''Valerian'' (1916) See also * * Valeria (other) * Valerianus (other) * Valérien (other) * Valyrian languages, in the fiction of George R. R. Martin * ''Sweet Vale ...
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Nenad Petrović (chess)
Nenad Petrović is the name of: * Nenad Petrović (writer) (1925–2014), Serbian writer * Nenad Petrović (chess composer) Nenad Petrović, (September 7, 1907, in Zagreb, Kingdom of Croatia-Slavonia-Dalmatia, Austria-Hungary (now Croatia) – November 9, 1989, in Zagreb, Socialist Republic of Croatia, Yugoslavia) was a Croatian chess problemist. Chess career Nenad ... (1907–1989), Croatian chess problemist * Nenad Petrović (water polo) (born 1977), Macedonian water polo player {{Hndis, Petrovic, Nenad ...
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Charles Masson Fox
Charles Masson Fox (9 November 1866 – 11 October 1935) was a Cornish businessman who achieved international prominence in the world of chess problems and a place in the homosexual history of Edwardian England. Masson Fox was born into a Quaker family (although he was not related to the Quakers' founder George Fox) and was second cousin once removed of the fraudulent sinologist Sir Edmund Backhouse, 2nd Baronet. Living throughout his life in the Cornish seaside town of Falmouth, Fox in the early decades of his life was a senior partner of his family's timber firm, Fox Stanton & Company, and was also on the Board of Messrs G C Fox & Company, a long-established firm of shipping agents. Fox is described by chess historian Thomas Rayner Dawson (1889–1951) as "a friendly man, kind, mellow, lovable, bringing peace and comfort and serene joy with him". He was also a discreet but active homosexual. In 1909 he visited Venice with his friend James Cockerton, meeting the writer Fred ...
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Grasshopper Chess
Grasshopper chess is a chess variant, in which the pawns are allowed to promote to a fairy chess piece, fairy piece, the ''Grasshopper (chess), grasshopper''. The grasshopper (shown as an inverted queen) must hop over other pieces in order to move or capture. In some variations grasshoppers may also be present on the board in the opening position, in addition to the usual pieces. For example, pawns can be moved forward and grasshoppers put along the second and seventh ranks as shown on the diagram at right. Another possibility is to replace queen (chess), queens with grasshoppers in initial position, while pawns can still be promoted to queens. Grasshoppers are capable of moving as a queen but must jump over a piece and land one spot past the piece that they jump. Pawns are not allowed to go twice for their initial move. References External links Grasshopper chess
by Hans Bodlaender, ''The Chess Variant Pages'' Chess variants {{chess-stub ...
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Xiangqi
''Xiangqi'' (; ), also called Chinese chess or elephant chess, is a strategy board game for two players. It is the most popular board game in China. ''Xiangqi'' is in the same family of games as '' shogi'', '' janggi'', Western chess, '' chaturanga'', and Indian chess. Besides China and areas with significant ethnic Chinese communities, this game is also a popular pastime in Vietnam, where it is known as , literally 'general chess'. The game represents a battle between two armies, with the primary object being to checkmate the enemy's general (king). Distinctive features of xiangqi include the cannon (''pao''), which must jump to capture; a rule prohibiting the generals from facing each other directly; areas on the board called the ''river'' and ''palace'', which restrict the movement of some pieces but enhance that of others; and the placement of the pieces on the intersections of the board lines, rather than within the squares. Board Xiangqi is played on a board nine lin ...
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Janggi
''Janggi'' (including romanizations ''changgi'' and ''jangki''), sometimes called Korean chess, is a strategy board game popular on the Korean Peninsula. The game was derived from xiangqi (Chinese chess), and is very similar to it, including the starting position of some of the pieces, and the 9×10 gameboard, but without the xiangqi "river" dividing the board horizontally in the middle. Janggi is played on a board nine lines wide by ten lines long. The game is sometimes fast paced due to the jumping cannons and the long-range elephants, but professional games most often last over 150 moves and so are typically slower than those of Western chess. In 2009, the first world janggi tournament was held in Harbin, Heilongjiang, China. Rules Board The board is composed of 90 intersections of 9 vertical files and 10 horizontal rows. The board has nearly the same layout as that used in xiangqi, except the janggi board has no "river" in the central row. The pieces consist of disks mark ...
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Dover Publications
Dover Publications, also known as Dover Books, is an American book publisher founded in 1941 by Hayward and Blanche Cirker. It primarily reissues books that are out of print from their original publishers. These are often, but not always, books in the public domain. The original published editions may be scarce or historically significant. Dover republishes these books, making them available at a significantly reduced cost. Classic reprints Dover reprints classic works of literature, classical sheet music, and public-domain images from the 18th and 19th centuries. Dover also publishes an extensive collection of mathematical, scientific, and engineering texts. It often targets its reprints at a niche market, such as woodworking. Starting in 2015, the company branched out into graphic novel reprints, overseen by Dover acquisitions editor and former comics writer and editor Drew Ford. Most Dover reprints are photo facsimiles of the originals, retaining the original pagination and ...
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Hans Bodlaender
Hans Leo Bodlaender (born April 21, 1960) is a Dutch computer scientist, a professor of computer science at Utrecht University. Bodlaender is known for his work on graph algorithms and parameterized complexity and in particular for algorithms relating to tree decomposition of graphs. Life and work Born in Bennekom, Bodlaender was educated at Utrecht University, earning a doctorate in 1986 under the supervision of Jan van Leeuwen with the thesis ''Distributed Computing – Structure and Complexity.'' After postdoctoral research at the Massachusetts Institute of Technology in 1987, he returned to Utrecht as a faculty member. In 1987 he was appointed Assistant Professor and in 2003 Associate Professor. In 2014 he became full professor of algorithms and complexity at Utrecht, and at the same time added a part-time professorship in network algorithms at Eindhoven University of Technology. Bodlaender has written extensively about chess variants and founded the website ''The Chess Va ...
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