Saavedra Position
   HOME
*





Saavedra Position
The Saavedra position is one of the best-known chess endgame studies. It is named after the Spanish priest Fernando Saavedra (1849–1922), who lived in Glasgow during the late 19th century. Though not a strong player, he spotted a win involving a dramatic underpromotion in a position previously thought to have been a draw. This is among a minority of positions where king and pawn can win against a king and rook, and one of the most famous examples of underpromotion in chess. It is also a rare example of a player being famous for a single move. Solution The position as it is usually given today, with White to move and win, is shown in the diagram. The solution is: :1. c7 Rd6+ 2. Kb5 (If 2.Kc5 then Rd1 threatening a skewer via 3...Rc1; if instead 2.Kb7? then Rd7 pins the pawn, allowing black to capture it to assure a draw.) :2... Rd5+ Or 2...Rd2 3.c8=Q Rb2+ 4.Ka4 Ra2+ 5.Kb3 Rb2+ 6.Kc3 and White wins. :3. Kb4 Rd4+ 4. Kb3 Rd3+ 5. Kc2 Rd4! 6. c8=R! Threatening 7.Ra8+; instead 6. ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Chess
Chess is a board game for two players, called White and Black, each controlling an army of chess pieces in their color, with the objective to checkmate the opponent's king. It is sometimes called international chess or Western chess to distinguish it from related games, such as xiangqi (Chinese chess) and shogi (Japanese chess). The recorded history of chess goes back at least to the emergence of a similar game, chaturanga, in seventh-century India. The rules of chess as we know them today emerged in Europe at the end of the 15th century, with standardization and universal acceptance by the end of the 19th century. Today, chess is one of the world's most popular games, played by millions of people worldwide. Chess is an abstract strategy game that involves no hidden information and no use of dice or cards. It is played on a chessboard with 64 squares arranged in an eight-by-eight grid. At the start, each player controls sixteen pieces: one king, one queen, two rooks, t ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


Bernhard Horwitz
Bernhard Horwitz (1807 in Neustrelitz – 1885 in London) was a German and British chess master, chess writer and chess composer. Horwitz was born in Neustrelitz and went to school in Berlin, where he studied art. From 1837 to 1843, he was part of a group of German chess players known as "Berlin Pleiades, The Pleiades". He moved to London in 1845, where he became a British citizen. In 1846, he lost a match against visiting master Lionel Kieseritzky, and another against Howard Staunton, losing 15.5–8.5. His best chess result was winning a match against Henry Bird (chess player), Henry Bird in 1851. He played in the first international chess tournament, London 1851 chess tournament, London 1851, again beating Bird in the first round, but losing to Staunton in the second and József Szén in the third. Horwitz's ''Chess Studies'' (1851), co-authored with Josef Kling, is an important work on the endgame study and Chess endgame, endgames in general. "Horwitz bishops", a configura ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


Gambit Publications
{{Infobox publisher , name = Gambit Publications , image = , caption = , parent = , status = , traded_as = , predecessor = , founded = , founder = John Nunn, Murray Chandler, and Graham Burgess , successor = , country = United Kingdom , headquarters = London , distribution = Central Books (UK){{Cite web, title = Distribution, access-date = 2017-12-25, url = http://www.centralbooks.com/distribution/, archive-url = https://web.archive.org/web/20171226130320/http://www.centralbooks.com/distribution/, archive-date = 2017-12-26, url-status = deadTwo Rivers Distribution (US) , keypeople = , publications = Books , topics = Chess , genre = , imprints = , revenue = , owner = , numemployees = , website = {{URL, http://www.gambitbooks.com Gambit Publications is a major publisher of chess books. The company's headquarters is in London. It has published more than ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


Bishop And Knight Checkmate
The bishop and knight checkmate in chess is the checkmate of a lone king which can be by a king, a bishop, and a knight. With the stronger side to move and with perfect play, checkmate can be forced in at most thirty-three moves from any starting position where the defender cannot quickly win one of the pieces. The exception is the "stalemate trap" (see below). These exceptions constitute about 0.5% of the positions. Checkmates are possible with the defending king on any square at the edge of the board but can be forced only from positions with different or if the defending king is in a corner controlled by the bishop or on a square on the edge next to a corner; however, mate adjacent to the corners not controlled by the bishop is only two moves deep (with the same material), so it is not generally encountered unless the defending side plays inaccurately. Although this is classified as one of the four basic or elementary checkmates (the others being king and queen; king and rook ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Bishop (chess)
The bishop (♗, ♝) is a piece in the game of chess. It moves and captures along without jumping over intervening pieces. Each player begins the game with two bishops. One starts between the and the king, the other between the and the queen. The starting squares are c1 and f1 for White's bishops, and c8 and f8 for Black's bishops. Placement and movement The king's bishop is placed between the king and the king's knight, f1 for White and f8 for Black; the queen's bishop is placed between the queen and the queen's knight, c1 for White and c8 for Black. The bishop has no restrictions in distance for each move but is limited to diagonal movement. It cannot jump over other pieces. A bishop captures by occupying the square on which an enemy piece stands. As a consequence of its diagonal movement, each bishop always remains on one square color. Due to this, it is common to refer to a bishop as a light-squared or dark-squared bishop. Comparison – other pieces Versus rook A r ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  




Shakhmaty V SSSR
''Shakhmaty v SSSR'' (russian: Шахматы в СССР; ''Chess in the USSR'') was a Soviet chess magazine published between 1931 and 1991. It was edited by Viacheslav Ragozin for several years. Yuri Averbakh was also an editor. From 1921 or 1925 through 1930 it was titled ''Shakhmatny Listok'' (''Chess Papers'') and edited by Alexander Ilyin-Genevsky Alexander Fyodorovich Ilyin (russian: Алекса́ндр Фёдорович Ильи́н-Жене́вский; November 28, 1894 – September 3, 1941), known with the party name Zhenevsky, "the Genevan" because he joined the Bolshevik group of .... The circulation was 55,000.Edward Brace, ''An Illustrated Dictionary of Chess'', 1977, The magazine was published by the USSR Chess Federation. Notes External links WorldCat 1913 establishments in the Russian Empire 1991 disestablishments in the Soviet Union Chess in the Soviet Union Chess periodicals Magazines established in 1913 Magazines disestablished in 1991 Mag ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


Plaskett's Puzzle
Plaskett's Puzzle is a chess endgame study created by the Dutch endgame composer Gijs van Breukelen (February 27, 1946 – December 21, 2022) around 1970, although not published at the time. Van Breukelen published the puzzle in 1997 in the Netherlands chess magazine '' Schakend Nederland''. It was presented by English grandmaster James Plaskett, at a top-flight chess tournament in Brussels in 1987, hence the name "Plaskett's Puzzle". According to contemporary accounts, of the several strong grandmasters who analyzed the position, only former World Champion Mikhail Tal was able to solve it. While the solution is striking, the study was found to be flawed in that White has no immediately decisive continuation if Black plays 4...Kg4 rather than the obvious 4...Nf7+. This issue may be fixed by instead placing Black's g5 knight on h8 or e5, or by adding a white pawn on h2, but the flawed version of the study demonstrated by Plaskett and published by van Breukelen remains the best kno ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


Mark Liburkin
Mark Liburkin (Vitebsk, 31 August 1910 - Moscow, 5 March 1953) was a Soviet chess composer. He composed more than 110 endgame studies, usually with geometrical motifs. In 1945, he was appointed editor of Soviet chess magazine ''Shakhmaty v SSSR ''Shakhmaty v SSSR'' (russian: Шахматы в СССР; ''Chess in the USSR'') was a Soviet chess magazine published between 1931 and 1991. It was edited by Viacheslav Ragozin for several years. Yuri Averbakh was also an editor. From 1921 or ...''. In 2010, endgame association AVRES held centenary memorial tournaments in honor of Liburkin and Shaya Kozlowski.{{Cite web , date=2010-12-23 , title=Liburkin, Kozlowski memorial composing tourneys , url=https://en.chessbase.com/post/liburkin-kozlowski-memorial-composing-tourneys , access-date=2022-09-16 , website=Chess News , language=en References Soviet chess writers Chess composers ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


Harold Lommer
Harold may refer to: People * Harold (given name), including a list of persons and fictional characters with the name * Harold (surname), surname in the English language * András Arató, known in meme culture as "Hide the Pain Harold" Arts and entertainment * ''Harold'' (film), a 2008 comedy film * ''Harold'', an 1876 poem by Alfred, Lord Tennyson * ''Harold, the Last of the Saxons'', an 1848 book by Edward Bulwer-Lytton, 1st Baron Lytton * ''Harold or the Norman Conquest'', an opera by Frederic Cowen * ''Harold'', an 1885 opera by Eduard Nápravník * Harold, a character from the cartoon ''The Grim Adventures of Billy & Mandy'' *Harold & Kumar, a US movie; Harold/Harry is the main actor in the show. Places ;In the United States * Alpine, Los Angeles County, California, an erstwhile settlement that was also known as Harold * Harold, Florida, an unincorporated community * Harold, Kentucky, an unincorporated community * Harold, Missouri, an unincorporated community ;E ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  




John Roycroft
Arthur John Roycroft (born 25 July 1929, London) is an English chess endgame study composer and author. Chess career In 1959 he was awarded the title International Judge of Chess Compositions. In 1965 he founded '' EG'', the first long-running journal exclusively for endgame studies.Hooper & Whyld, p. 346 Roycroft served as editor and publisher through 1991. The journal continues to be published, but under Dutch ownership ("ARVES"). Roycroft remained its chief editor until 2007 when Harold van der Heijden took over. His 1972 book ''Test Tube Chess'' (revised as ''The Chess Endgame Study'', 1981) is considered one of the best English-language examinations of endgame studies. He also served as the endgame study editor for the ''British Chess Magazine'' from 1973 to 1974. Roycroft's adaptation of the Guy–Blandford code in the 1970s resulted in the Guy–Blandford–Roycroft code, an efficient way to index endgame studies – or any chess position. He also advised Ken Thompson ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


Anthropocentrism
Anthropocentrism (; ) is the belief that human beings are the central or most important entity in the universe. The term can be used interchangeably with humanocentrism, and some refer to the concept as human supremacy or human exceptionalism. From an anthropocentric perspective, humankind is seen as separate from nature and superior to it, and other entities (animals, plants, minerals, etc.) are viewed as resources for humans to use. Anthropocentrism interprets or regards the world in terms of human values and experiences. It is considered to be profoundly embedded in many modern human cultures and conscious acts. It is a major concept in the field of environmental ethics and environmental philosophy, where it is often considered to be the root cause of problems created by human action within the ecosphere. However, many proponents of anthropocentrism state that this is not necessarily the case: they argue that a sound long-term view acknowledges that the global environment mus ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Endgame Tablebase
An endgame tablebase is a computerized database that contains precalculated exhaustive analysis of chess endgame positions. It is typically used by a computer chess engine during play, or by a human or computer that is retrospectively analysing a game that has already been played. The tablebase contains the game-theoretical value (win, loss, or draw) in each possible position, and how many moves it would take to achieve that result with perfect play. Thus, the tablebase acts as an oracle, always providing the optimal moves. Typically the database records each possible position with certain pieces remaining on the board, and the best moves with White to move and with Black to move. Tablebases are generated by retrograde analysis, working backward from a checkmated position. By 2005, all chess positions with up to six pieces, including the two kings, had been solved. By August 2012, tablebases had solved chess for almost every position with up to seven pieces, but the positio ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]