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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] |
Chess Kll45
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, two bi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seirawan Open Phase 1 Pgn
Yasser Seirawan ( ar, ياسر سيروان; born March 24, 1960) is a Syrian-born American chess Grandmaster (chess), grandmaster and four-time United States Chess Championship, United States champion. He won the World Junior Chess Championship in 1979. Seirawan is also a published chess author and commentator. Early life Seirawan was born in Damascus, Syria. His father was Syrian and his mother an English nurse from Nottingham, where he spent some time in his early childhood. When he was seven, his family immigrated to Seattle, Washington, where he attended Queen Anne Elementary School, Edmond S. Meany Middle School, Meany Middle School, and Garfield High School (Seattle, Washington), Garfield High School. He honed his game at a now-defunct coffeehouse, the Last Exit on Brooklyn, playing against the likes of Latvian-born master Viktors Pupols and six-time Washington (state), Washington State Champion James Harley McCormick. Career Seirawan began playing chess at 12; at 13, he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
François-André Danican Philidor
François-André Danican Philidor (7 September 1726 – 31 August 1795), often referred to as André Danican Philidor during his lifetime, was a French composer and chess player. He contributed to the early development of the ''opéra comique''. He is widely regarded as the best chess player of his age; his book ''Analyse du jeu des Échecs'' was considered a standard chess manual for at least a century. A well-known chess opening, an endgame position, and a checkmate method are all named after him. Musical family François-André Danican Philidor came from the well-known musical Philidor family. The original name of his family was Danican, but François-André's grandfather, Jean Danican Philidor, was given the nickname of Philidor by Louis XIII because his oboe playing reminded the king of an Italian virtuoso oboist named Filidori. Music career Philidor joined the royal choir of Louis XV in 1732 at the age of 6, and made his first attempt at the composition of a song at th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stalemate
Stalemate is a situation in the game of chess where the player whose turn it is to move is not in check and has no legal move. Stalemate results in a draw. During the endgame, stalemate is a resource that can enable the player with the inferior position to draw the game rather than lose. In more complex positions, stalemate is much rarer, usually taking the form of a swindle that succeeds only if the superior side is inattentive. Stalemate is also a common theme in endgame studies and other chess problems. The outcome of a stalemate was standardized as a draw in the 19th century. Before this standardization, its treatment varied widely, including being deemed a win for the stalemating player, a half-win for that player, or a loss for that player; not being permitted; and resulting in the stalemated player missing a turn. Stalemate rules vary in other games of the chess family. Etymology and usage The first recorded use of stalemate is from 1765. It is a compounding of Middl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chess Life
The monthly ''Chess Life'' and bi-monthly ''Chess Life Kids'' (formerly ''School Mates'' and ''Chess Life for Kids'') are the official magazines published by the United States Chess Federation (US Chess). ''Chess Life'' is advertised as the "most widely read chess magazine in the world," and reaches more than a quarter of a million readers each month. It focuses on American chess players and tournaments, instruction, human interest, and US Chess governance matters. ''Chess Life Kids'' is geared towards those under 14. A subscription to ''Chess Life'' and ''Chess Life Kids'' is currently one benefit of becoming a US Chess member or affiliate. All members are given access to the online versions of ''Chess Life'' and ''Chess Life Kids'' (including back issues). Affiliates and some membership categories also receive printed copies of ''Chess Life'' and/or ''Chess Life Kids''. History The United States Chess Federation was incorporated on December 27, 1939. In the early years, it had ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Larry Evans (chess Grandmaster)
Larry Melvyn Evans (March 22, 1932 – November 15, 2010) was an American chess player, author, and journalist who received the FIDE title of Grandmaster (GM) in 1957. He won or shared the U.S. Chess Championship five times and the U.S. Open Chess Championship four times. He wrote a long-running syndicated chess column and wrote or co-wrote more than twenty books on chess. Chess career Early years Evans was born on March 22, 1932 in Manhattan, the son of Bella (Shotl) and Harry Evans. His family was Jewish. He learned much about the game by playing for ten cents an hour on 42nd Street in New York City, quickly becoming a rising star. At age 14, he tied for 4th–5th place in the Marshall Chess Club championship. The next year he won it outright, becoming the youngest Marshall champion at that time. He also finished equal second in the U.S. Junior Championship, which led to an article in the September 1947 issue of Chess Review. At 16, he played in the 1948 U.S. Chess Champi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chess Master
A chess title is a title regulated by a chess governing body and bestowed upon players based on their performance and rank. Such titles are usually granted for life. The international chess governing body FIDE grants several titles, the most prestigious of which is Grandmaster; many national chess federations also grant titles such as "National Master". More broadly, the term "master" can refer to any highly skilled chess player. Over-the-board chess In general, a ''chess master'' is a player of such skill that they can usually beat most amateurs. Among chess players, the term is often abbreviated to ''master''. The establishment of the world chess body, Fédération Internationale des Échecs (FIDE), saw the creation of titles superior to the "national master" titles. In 1950, FIDE created the titles " Grandmaster" and "International Master", the requirements for which were increasingly formalized over the years. In 1978, FIDE created the lesser title of "FIDE Master". Early u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chess Endgame
In chess and other similar games, the endgame (or end game or ending) is the stage of the game when few pieces are left on the board. The line between middlegame and endgame is often not clear, and may occur gradually or with the quick exchange of a few pairs of pieces. The endgame, however, tends to have different characteristics from the middlegame, and the players have correspondingly different strategic concerns. In particular, pawns become more important as endgames often revolve around attempting to promote a pawn by advancing it to the eighth . The king, which normally should stay hidden during the game should become active in the endgame, as it can help escort pawns to the promotion square, attack enemy pawns, protect other pieces, and restrict the movement of the enemy king. All chess positions with up to seven pieces on the board have been solved, that is, the outcome (win, loss, or draw) of best play by both sides is known, and textbooks and reference works teach th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypotenuse
In geometry, a hypotenuse is the longest side of a right-angled triangle, the side opposite the right angle. The length of the hypotenuse can be found using the Pythagorean theorem, which states that the square of the length of the hypotenuse equals the sum of the squares of the lengths of the other two sides. For example, if one of the other sides has a length of 3 (when squared, 9) and the other has a length of 4 (when squared, 16), then their squares add up to 25. The length of the hypotenuse is the square root of 25, that is, 5. Etymology The word ''hypotenuse'' is derived from Greek (sc. or ), meaning " idesubtending the right angle" (Apollodorus), ''hupoteinousa'' being the feminine present active participle of the verb ''hupo-teinō'' "to stretch below, to subtend", from ''teinō'' "to stretch, extend". The nominalised participle, , was used for the hypotenuse of a triangle in the 4th century BCE (attested in Plato, ''Timaeus'' 54d). The Greek term was loaned into La ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zugzwang
Zugzwang (German for "compulsion to move", ) is a situation found in chess and other turn-based games wherein one player is put at a disadvantage because of their obligation to make a move; a player is said to be "in zugzwang" when any legal move will worsen their position. Although the term is used less precisely in games such as chess, it is used specifically in combinatorial game theory to denote a move that directly changes the outcome of the game from a win to a loss. Putting the opponent in zugzwang is a common way to help the superior side win a game, and in some cases it is necessary in order to make the win possible. The term ''zugzwang'' was used in German chess literature in 1858 or earlier, and the first known use of the term in English was by World Champion Emanuel Lasker in 1905. The concept of zugzwang was known to chess players many centuries before the term was coined, appearing in an endgame study published in 1604 by Alessandro Salvio, one of the first writers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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