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Samuel Loyd
Samuel Loyd (January 30, 1841 – April 10, 1911), was an American chess player, chess composer, puzzle author, and recreational mathematician. Loyd was born in Philadelphia but raised in New York City. As a chess composer, he authored a number of chess problems, often with interesting themes. At his peak, Loyd was one of the best chess players in the US, and was ranked 15th in the world, according to chessmetrics.com. He played in the strong Paris 1867 chess tournament (won by Ignatz von Kolisch) with little success, placing near the bottom of the field. Following his death, his book ''Cyclopedia of 5000 Puzzles'' was published (1914) by his son. His son, named after his father, dropped the "Jr" from his name and started publishing reprints of his father's puzzles. Loyd (senior) was inducted into the US Chess Hall of Fame in 1987. Reputation Loyd is widely acknowledged as one of America's great puzzle writers and popularizers, often mentioned as ''the greatest.'' Marti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philadelphia
Philadelphia, often called Philly, is the largest city in the Commonwealth of Pennsylvania, the sixth-largest city in the U.S., the second-largest city in both the Northeast megalopolis and Mid-Atlantic regions after New York City. Since 1854, the city has been coextensive with Philadelphia County, the most populous county in Pennsylvania and the urban core of the Delaware Valley, the nation's seventh-largest and one of world's largest metropolitan regions, with 6.245 million residents . The city's population at the 2020 census was 1,603,797, and over 56 million people live within of Philadelphia. Philadelphia was founded in 1682 by William Penn, an English Quaker. The city served as capital of the Pennsylvania Colony during the British colonial era and went on to play a historic and vital role as the central meeting place for the nation's founding fathers whose plans and actions in Philadelphia ultimately inspired the American Revolution and the nation's inde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Dudeney
Henry Ernest Dudeney (10 April 1857 – 23 April 1930) was an English author and mathematician who specialised in logic puzzles and mathematical games. He is known as one of the country's foremost creators of mathematical puzzles. Early life Dudeney was born in the village of Mayfield, East Sussex, England, one of six children of Gilbert and Lucy Dudeney. His grandfather, John Dudeney, was well known as a self-taught mathematician and shepherd; his initiative was much admired by his grandson. Dudeney learned to play chess at an early age, and continued to play frequently throughout his life. This led to a marked interest in mathematics and the composition of puzzles. Chess problems in particular fascinated him during his early years. Career Although Dudeney spent his career in the Civil Service, he continued to devise various problems and puzzles. Dudeney's first puzzle contributions were submissions to newspapers and magazines, often under the pseudonym of "Sphinx." Much of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vanishing Puzzle
A vanishing puzzle is a mechanical optical illusion comprising multiple pieces which can be rearranged to show different versions of a picture depicting several objects, the number of which depending on the arrangement of the pieces. History Wemple & Company marketed an advertising card named ''The Magic Egg Puzzle, (How Many Eggs?)'' in New York in 1880. Cutting the rectangular card into four oblongs allowed the pieces to be rearranged to show either 8, 9 or 10 eggs. Many other similar puzzles have been published since. Chess player and recreational mathematician Sam Loyd patented rotary vanishing puzzles in 1896 and published versions named ''Get Off the Earth'', ''Teddy and the Lion'' and ''The Disappearing Bicyclist'' (pictured). Each had a circular card connected to a cardboard backdrop with a pin, letting it freely rotate. In ''The Disappearing Bicyclist'', when the disc is rotated such that the arrow points to A, 13 boys can be counted, but when it points to B, there ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Disappearing Bicyclist Vanishing Puzzle
''The'' () is a grammatical article in English, denoting persons or things already mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with pronouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of pronoun ''thee'') when followed by a v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sam Loyd's Trick Donkeys
Sam, SAM or variants may refer to: Places * Sam, Benin * Sam, Boulkiemdé, Burkina Faso * Sam, Bourzanga, Burkina Faso * Sam, Kongoussi, Burkina Faso * Sam, Iran * Sam, Teton County, Idaho, United States, a populated place People and fictional characters * Sam (given name), a list of people and fictional characters with the given name or nickname * Sam (surname), a list of people with the surname ** Cen (surname) (岑), romanized "Sam" in Cantonese ** Shen (surname) (沈), often romanized "Sam" in Cantonese and other languages Religious or legendary figures * Sam (Book of Mormon), elder brother of Nephi * Sām, a Persian mythical folk hero * Sam Ziwa, an uthra (angel or celestial being) in Mandaeism Animals * Sam (army dog) (died 2000) * Sam (horse) (b 1815), British Thoroughbred * Sam (koala) (died 2009), rescued after 2009 bush fires in Victoria, Australia * Sam (orangutan), in the movie ''Dunston Checks In'' * Sam (ugly dog) (1990–2005), voted the world's ugliest dog in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skirmish At Bender
The Skirmish at Bender ( sv, Kalabaliken i Bender; fi, Benderin kalabaliikki) was devised to remove Charles XII of Sweden from the Ottoman Empire after his military defeats in Russia. It took place on 1 February 1713 on Ottoman territory, in what is now the town of Bender, Moldova (Separatist Region/Country of Transnistria). Etymology The Turkish word ''kalabalık'' means crowded, which after the incident has become a Swedish and Finnish loanword, ''kalabalik'', with the meaning "confusion" or "great disorder". History After the Swedish defeat at the Battle of Poltava on 27 June 1709 and the surrender of most of the Swedish army at Perevolochna three days later, Charles XII of Sweden fled together with a few hundred Swedish soldiers and a large number of Cossacks to the Ottoman Empire, where they spent a total of five years. On 31 January 1713, Turkish artillery fired on the Swedish camp. On 1 February, the Ottoman forces, commanded by the Serasker of Bender, attacked the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles XII Of Sweden
Charles XII, sometimes Carl XII ( sv, Karl XII) or Carolus Rex (17 June 1682 – 30 November 1718 O.S.), was King of Sweden (including current Finland) from 1697 to 1718. He belonged to the House of Palatinate-Zweibrücken, a branch line of the House of Wittelsbach. Charles was the only surviving son of Charles XI and Ulrika Eleonora the Elder. He assumed power, after a seven-month caretaker government, at the age of fifteen. In 1700, a triple alliance of Denmark–Norway, Saxony– Poland–Lithuania and Russia launched a threefold attack on the Swedish protectorate of Holstein-Gottorp and provinces of Livonia and Ingria, aiming to draw advantage as the Swedish Empire was unaligned and ruled by a young and inexperienced king, thus initiating the Great Northern War. Leading the Swedish army against the alliance, Charles won multiple victories despite being usually significantly outnumbered. A major victory over a Russian army some three times the size in 1700, at the Ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Checkmate
Checkmate (often shortened to mate) is any game position in chess and other chess-like games in which a player's king is in check (threatened with ) and there is no possible escape. Checkmating the opponent wins the game. In chess, the king is never actually captured—the player loses as soon as the player's king is checkmated. In formal games, it is usually considered good etiquette to resign an inevitably lost game before being checkmated. If a player is not in check but has no legal move, then it is '' stalemate'', and the game immediately ends in a draw. A checkmating move is recorded in algebraic notation using the hash symbol "#", for example: 34.Qg3#. Examples A checkmate may occur in as few as two moves on one side with all of the pieces still on the board (as in Fool's mate, in the opening phase of the game), in a middlegame position (as in the 1956 game called the Game of the Century between Donald Byrne and Bobby Fischer), or after many moves with as few as t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Wadsworth Longfellow
Henry Wadsworth Longfellow (February 27, 1807 – March 24, 1882) was an American poet and educator. His original works include "Paul Revere's Ride", ''The Song of Hiawatha'', and ''Evangeline''. He was the first American to completely translate Dante Alighieri's ''Divine Comedy'' and was one of the fireside poets from New England. Longfellow was born in Portland, Maine, which was then still part of Massachusetts. He graduated from Bowdoin College and became a professor there and, later, at Harvard College after studying in Europe. His first major poetry collections were ''Voices of the Night'' (1839) and ''Ballads and Other Poems'' (1841). He retired from teaching in 1854 to focus on his writing, and he lived the remainder of his life in the Revolutionary War headquarters of George Washington in Cambridge, Massachusetts. His first wife, Mary Potter, died in 1835 after a miscarriage. His second wife, Frances Appleton, died in 1861 after sustaining burns when her dress caught ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Excelsior (chess Problem)
"Excelsior" is one of Sam Loyd's most famous chess problems, originally published in ''London Era'' in 1861. In 1867, it participated together with five other problems as a set in an international problem tournament. The motto for the full set was "Excelsior" (eng. 'Ever upward'), generally known as the title of the poem "Excelsior" by Henry Wadsworth Longfellow, and as that term is very fitting for this particular problem, it is generally associated with it. It is not to be confused by a popular 1958 study of the same name by Russian chess composer Vladimir Korolkov, which has a similar thematic motif. Backstory Loyd had a friend who was willing to wager that he could always find the piece which delivered the principal mate of a chess problem. Loyd composed this problem as a joke and bet his friend dinner that he could not pick a piece that ''didn't'' give mate in the main line (his friend immediately identified the pawn on b2 as being the least likely to deliver mate), and wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hoax
A hoax is a widely publicized falsehood so fashioned as to invite reflexive, unthinking acceptance by the greatest number of people of the most varied social identities and of the highest possible social pretensions to gull its victims into putting up the highest possible social currency in support of the hoax. Whereas the promoters of frauds, fakes, and scams devise them so that they will withstand the highest degree of scrutiny customary in the affair, hoaxers are confident, justifiably or not, that their representations will receive no scrutiny at all. They have such confidence because their representations belong to a world of notions fundamental to the victims' views of reality, but whose truth and importance they accept without argument or evidence, and so never question. Some hoaxers intend eventually to unmask their representations as in fact a hoax so as to expose their victims as fools; seeking some form of profit, other hoaxers hope to maintain the hoax indefini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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