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Fivefold Repetition
In chess, the threefold repetition rule states that a player may claim a draw if the same position occurs three times during the game. The rule is also known as repetition of position and, in the USCF rules, as triple occurrence of position.Article 14K.2 in Two positions are by definition "the same" if the same types of pieces occupy the same squares, the same player has the move, the remaining castling rights are the same and the possibility to capture ''en passant'' is the same. The repeated positions need not occur in succession. The reasoning behind the rule is that if the position occurs three times, no real progress is being made and the game could hypothetically continue indefinitely. The game is not automatically drawn if a position occurs for the third time – one of the players, on their turn, must claim the draw with the arbiter. The claim must be made either before making the move which will produce the third repetition, or after the opponent has made a move producing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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] |
World Chess Championship 1972
The World Chess Championship 1972 was a match for the World Chess Championship between challenger Bobby Fischer of the United States and defending champion Boris Spassky of the Soviet Union. The match took place in the Laugardalshöll arena in Reykjavík, Iceland, and has been dubbed the Match of the Century. Fischer became the first American born in the United States to win the world title, and the second American overall (Wilhelm Steinitz, the first world champion, became a naturalized American citizen in 1888). Fischer's win also ended, for a short time, 24 years of Soviet domination of the World Championship. The first game was played on July 11, 1972. The last game (the 21st) began on August 31, was after 40 moves, and Spassky resigned the next day without resuming play. Fischer won the match 12½–8½, becoming the eleventh undisputed world champion. Background The match was played during the Cold War, although during a period of increasing détente. The Soviet Ches ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexander Alekhine
Alexander Aleksandrovich Alekhine, ''Aleksándr Aleksándrovich Alékhin''; (March 24, 1946) was a Russian and French chess player and the fourth World Chess Champion, a title he held for two reigns. By the age of 22, Alekhine was already among the strongest chess players in the world. During the 1920s, he won most of the tournaments in which he played. In 1921, Alekhine left Soviet Russia and emigrated to France, which he represented after 1925. In 1927, he became the fourth World Chess Champion by defeating José Raúl Capablanca. In the early 1930s, Alekhine dominated tournament play and won two top-class tournaments by large margins. He also played first board for France in five Chess Olympiads, winning individual prizes in each (four medals and a brilliancy prize). Alekhine offered Capablanca a rematch on the same demanding terms that Capablanca had set for him, and negotiations dragged on for years without making much progress. Meanwhile, Alekhine defended his title wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Time Control
A time control is a mechanism in the tournament play of almost all two-player board games so that each round of the match can finish in a timely way and the tournament can proceed. Time controls are typically enforced by means of a game clock, where the times below are given per player. Time pressure (or time trouble or ''Zeitnot'') is the situation of having very little time on a player's clock to complete their remaining moves. Classification The amount of time given to each player to complete their moves will vary from game to game. However, most games tend to change the classification of tournaments according to the length of time given to the players. In chess, the categories of short time limits are: "bullet", "blitz", and "rapid". "Bullet" games are the fastest, with either a very short time limit per move (such as ten seconds) or a very short total time (such as one or two minutes). "Blitz" games typically give five to ten minutes per player, and "rapid" games give bet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blunder (chess)
In chess, a blunder is a critically bad move. It is usually caused by some tactical oversight, whether it be from time trouble, overconfidence or carelessness. Although blunders are most common in amateur games, all human players make them, even at the world championship level. Creating opportunities for the opponent to blunder is an important skill in chess. What qualifies as a "blunder" rather than a normal mistake is somewhat subjective. A weak move from a novice player might be explained by the player's lack of skill, while the same move from a master might be called a blunder. In chess annotation, blunders are typically marked with a double question mark, "", after the move. Especially among amateur and novice players, blunders often occur because of a faulty thought process where players do not consider the opponent's . In particular, checks, , and need to be considered at each move. Neglecting these possibilities leaves a player vulnerable to simple tactical errors. One ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emanuel Lasker
Emanuel Lasker (; December 24, 1868 – January 11, 1941) was a German chess player, mathematician, and philosopher who was World Chess Champion for 27 years, from 1894 to 1921, the longest reign of any officially recognised World Chess Champion in history. In his prime, Lasker was one of the most dominant champions, and he is still generally regarded as one of the strongest players in history. His contemporaries used to say that Lasker used a "psychological" approach to the game, and even that he sometimes deliberately played inferior moves to confuse opponents. Recent analysis, however, indicates that he was ahead of his time and used a more flexible approach than his contemporaries, which mystified many of them. Lasker knew contemporary analyses of openings well but disagreed with many of them. He published chess magazines and five chess books, but later players and commentators found it difficult to draw lessons from his methods. Lasker made contributions to the developm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
José Raúl Capablanca
José Raúl Capablanca y Graupera (19 November 1888 – 8 March 1942) was a Cuban chess player who was world chess champion from 1921 to 1927. A chess prodigy, he is widely renowned for his exceptional endgame skill and speed of play. Capablanca was born in 1888 in Havana. He beat Cuban champion Juan Corzo in a match on 17 November 1901, two days before his 13th birthday. His victory over Frank Marshall in a 1909 match earned him an invitation to the 1911 San Sebastian tournament, which he won ahead of players such as Akiba Rubinstein, Aron Nimzowitsch and Siegbert Tarrasch. Over the next several years, Capablanca had a strong series of tournament results. After several unsuccessful attempts to arrange a match with then world champion Emanuel Lasker, Capablanca finally won the world chess champion title from Lasker in 1921. Capablanca was undefeated from 10 February 1916 to 21 March 1924, a period that included the world championship match with Lasker. Capablanca lost the ti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Chess Championship
The World Chess Championship is played to determine the world champion in chess. The current world champion is Magnus Carlsen of Norway, who has held the title since 2013. The first event recognized as a world championship was the World Chess Championship 1886, 1886 match between the two leading players in the world, Wilhelm Steinitz and Johannes Zukertort. Steinitz won, becoming the first world champion. From 1886 to 1946, the champion set the terms, requiring any challenger to raise a sizable stake and defeat the champion in a match in order to become the new world champion. Following the death of reigning world champion Alexander Alekhine in 1946, FIDE (the International Chess Federation) took over administration of the World Championship, beginning with the World Chess Championship 1948, 1948 World Championship tournament. From 1948 to 1993, FIDE organized a set of tournaments to choose a new challenger every three years. World Chess Championship 1993, In 1993, reigning cha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Chess Championship 1921
The 1921 World Chess Championship was played between José Raúl Capablanca and Emanuel Lasker. It was played in Capablanca's native Havana from March 18 to April 28. Capablanca won the match by a score of 9-5 (4 wins, 0 losses, 10 draws) to become the third World Chess Champion. Background Partly due to World War I, negotiations for this match took nearly 10 years. Lasker had been the World Champion since 1894, and had successfully defended his world title five times, most recently in 1910. In 1911, 22-year-old Capablanca won the San Sebastián chess tournament ahead of most of the world's leading players apart from Lasker. Later that year he challenged Lasker to a match for the world title. Lasker was unwilling to play the traditional first-to-win-ten-games-type of match in the semi-tropical conditions of Havana, especially as drawn games were becoming more frequent and the match might last for over six months. He therefore made a counter-proposal: if neither player had a lead ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tigran Petrosian
Tigran Vartanovich Petrosian (, ; 17 June 1929 – 13 August 1984) was a Soviet-Armenian chess grandmaster, and World Chess Champion from 1963 to 1969. He was nicknamed "Iron Tigran" due to his almost-impenetrable defensive playing style, which emphasized safety above all else. Petrosian is often credited with popularizing chess in Armenia. Petrosian was a candidate for the World Chess Championship on eight occasions ( 1953, 1956, 1959, 1962, 1971 * The year 1971 had three partial solar eclipses ( February 25, July 22 and August 20) and two total lunar eclipses (February 10, and August 6). The world population increased by 2.1% this year, the highest increase in history. Events Ja ..., 1974, 1977 and 1980). He won the World Championship in 1963 (against Mikhail Botvinnik), successfully defended it in 1966 (against Boris Spassky), and lost it to Spassky in 1969. Thus he was the defending World Champion or a World Championship Candidate in ten consecut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Candidates Tournament
The Candidates Tournament (or in some periods Candidates Matches) is a chess tournament organized by FIDE, chess's international governing body, since 1950, as the final contest to determine the challenger for the World Chess Championship. The winner of the Candidates earns the right to a match for the World Championship against the incumbent World Champion. Before 1993 it was contested as a triennial tournament; almost always held every third year from 1950 to 1992 inclusive. After the split of the World Championship in the early 1990s, the cycles were disrupted, even after the reunification of the titles in 2006. Since 2013 it has settled into a 2-year cycle: qualification for Candidates during the odd numbered year, Candidates played early in the even numbered year, and the World Championship match played late in the even numbered year. The latter half of the 2020 Candidates Tournament got suspended due to the COVID-19 pandemic and was only played in April 2021. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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