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Bogo-Indian Defence
The Bogo-Indian Defense is a chess opening characterised by the moves: :1. d4 Nf6 :2. c4 e6 :3. Nf3 Bb4+ The position arising after 1.d4 Nf6 2.c4 e6 is common. The traditional move for White here is 3.Nc3, threatening to set up a big pawn centre with 4.e4. However, 3.Nf3 is often played instead as a way of avoiding the Nimzo-Indian Defense (which would follow after 3.Nc3 Bb4). After 3.Nf3, Black usually plays 3...b6 (the Queen's Indian Defense) or 3...d5 (leading to the Queen's Gambit Declined), but can instead play 3...Bb4+, the Bogo-Indian, named after Efim Bogoljubow. This opening is not as popular as the Queen's Indian, but is seen occasionally at all levels. The Bogo-Indian is classified as E11 by the ''Encyclopaedia of Chess Openings'' (ECO). Variations White has three viable moves to meet the check. 4.Nc3 is a transposition to the Kasparov Variation of the Nimzo-Indian, therefore the main independent variations are 4.Bd2 and 4.Nbd2. 4.Bd2 4.Bd2 is the most common ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yefim Bogolyubov
Efim Bogoljubow ( or ), also known as Ewfim Dimitrijewitsch Bogoljubow, ( (); also Romanized ''Bogoljubov'', ''Bogolyubov''; uk, Юхим Дмитрович Боголюбов, Yukhym Dmytrovych Boholiubov; April 14, 1889 – June 18, 1952) was a Russian Empire, Russian-born German chess player who played two matches against Alexander Alekhine for the world championship. He was granted the title of Grandmaster (chess), grandmaster by FIDE in 1951. Early career Bogoljubow learned how to play chess at 15 years old, and developed a serious interest at the age of 18. His father was a priest, and he originally wanted to become one and studied theology in Kiev, but he decided otherwise and enrolled in the Polytechnical Institute to study agriculture.Efim Bogoljubov Chess Federation of Russia He did not finish his studies and inst ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transposition (chess)
In chess, a transposition is a sequence of moves that results in a position which may also be reached by another, more common sequence of moves. Transpositions are particularly common in the opening, where a given position may be reached by different sequences of moves. Players sometimes use transpositions deliberately, to avoid variations they dislike, lure opponents into unfamiliar or uncomfortable territory or simply to worry opponents. See review at In chess the verb "transpose" means to shift the game onto a different opening track from which it started. Transposition tables are an essential part of a computer chess program. Transpositions exist in other abstract strategy games such as shogi, Go, tic-tac-toe and Hex. Examples Positions reached by different routes For instance, the first position can be obtained from the Queen's Gambit: :1. d4 d5 :2. c4 e6 :3. Nc3 Nf6 But this position can also be reached from the English Opening: :1. c4 e6 :2. Nc3 Nf6 :3. d4 d5 so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Chess Openings
This is a list of chess openings, organized by the ''Encyclopaedia of Chess Openings'' () code. In 1966, Chess Informant categorized the chess openings into five broad areas ("A" through "E"), with each of those broken down into one hundred subcategories ("00" through "99"). The openings were published in five volumes of ''ECO'', with volumes labeled "A" through "E". This is a list of chess openings by the ''ECO'' classification. A – Flank openings * White first moves other than 1.e4, 1.d4 (A00–A39) * 1.d4 without 1...d5, 1...Nf6 or 1...f5: Atypical replies to 1.d4 (A40–A44) * 1.d4 Nf6 without 2.c4: Atypical replies to 1...Nf6 (A45–A49) * 1.d4 Nf6 2.c4 without 2...e6 or 2...g6: Atypical Indian systems (A50–A79) * 1.d4 f5: Dutch Defence (A80–A99) A00–A39 White first moves other than 1.e4, 1.d4: *A00 Irregular Openings :* Anderssen's Opening: 1.a3 ::* Anderssen's Opening, Polish Gambit: 1...a5 2.b4 :::* Bugayev Attack 2...e5 ::* Anderssen's Opening, Creepy Crawl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monticelli Trap
In chess, the Monticelli Trap is a combination in the Bogo–Indian Defence, named for Italian champion Mario Monticelli from the game Monticelli versus Prokeš, Budapest 1926. Although it is called a trap because White wins the exchange, Black does obtain some compensation. The trap begins with the moves: :1. d4 Nf6 :2. c4 e6 :3. Nf3 Bb4+ ::Black plays the Bogo–Indian Defence. :4. Bd2 Bxd2+ :5. Qxd2 b6 :6. g3 Bb7 :7. Bg2 O-O :8. Nc3 Ne4 :9. Qc2 Nxc3 :10. Ng5! (see diagram) Discussion White threatens mate with 11.Qxh7# as well as 11.Bxb7 winning a bishop and a rook. After either 10...Ne4 11.Bxe4 or 10...Qxg5 11.Bxb7, Black loses the exchange, but obtains compensation in the form of one or more pawns and possibly a weakened white king. It is unclear if the position is a forced win for White. Former world champion José Raúl Capablanca allowed 10.Ng5 twice in consecutive games as Black against Max Euwe in Amsterdam, 1931, drawing both times. The second game c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knight (chess)
The knight (♘, ♞) is a piece in the game of chess, represented by a horse's head and neck. It moves two squares vertically and one square horizontally, or two squares horizontally and one square vertically, jumping over other pieces. Each player starts the game with two knights on the b- and g-, each located between a rook and a bishop. Movement Compared to other chess pieces, the knight's movement is unique: it moves two squares vertically and one square horizontally, or two squares horizontally and one square vertically (with both forming the shape of a capital L). When moving, the knight can jump over pieces to reach its destination. Knights capture in the same way, replacing the enemy piece on the square and removing it from the board. A knight can have up to eight available moves at once. Knights and pawns are the only pieces that can be moved in the chess starting position. Value Knights and bishops, also known as , have a value of about three pawns. Bishops utili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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] |
David Bronstein
David Ionovich Bronstein (russian: Дави́д Ио́нович Бронште́йн; February 19, 1924 – December 5, 2006) was a Soviet and Ukrainian chess player. Awarded the title of International Grandmaster by FIDE in 1950, he narrowly missed becoming World Chess Champion in 1951. Bronstein was one of the world's strongest players from the mid-1940s into the mid-1970s, and was described by his peers as a creative genius and master of tactics. Also a renowned chess writer, his book ''Zurich International Chess Tournament 1953'' is widely considered one of the greatest chess books ever written. Early life David Bronstein was born in Bila Tserkva, Ukrainian SSR, Soviet Union, to Jewish parents. Growing up in a poor family, he learned chess at age six from his grandfather. As a youth in Kyiv, he was trained by the renowned International Master Alexander Konstantinopolsky. He finished second in the Kyiv Championship when he was only 15, and achieved the Soviet Master t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulf Andersson
Ulf Andersson (born 27 June 1951) is a leading Swedish chess player. FIDE awarded him the International Master title in 1970 and the Grandmaster title in 1972. Career At his peak, Andersson reached number four on the FIDE rating list. Tournaments he has won or shared first include the 1969 Swedish Chess Championship, Göteborg 1971, Dortmund 1973, Camagüez 1974, Cienfuegos 1975, Belgrade 1977, Buenos Aires 1978, Hastings 1978–79, Phillips & Drew 1980, Johannesburg 1981, Phillips & Drew 1982, Turin 1982, Wijk aan Zee 1983, Reggio Emilia 1985, Rome 1985, and Rome 1986. He drew a six-game match against former world champion Mikhail Tal in 1983, and played top board in the second USSR versus The Rest of The World Match in 1984. He led the Swedish Chess Olympiad Team during the 1970s and 1980s, and reached his best personal result in the 23rd Chess Olympiad in Buenos Aires 1978, where he finished in third place after Viktor Korchnoi and Orestes Rodríguez Vargas. Playing style A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Check (chess)
In chess and similar games, check is a condition that occurs when a player's king is under threat of on the opponent's next turn. A king so threatened is said to be in check. A player must get out of check if possible by moving the king to a safe square, interposing a piece between the threatening piece and the king, or capturing the threatening piece. If the player cannot get out of check by any of these options, the game ends in checkmate, and the player loses. Players cannot make any move that puts their own king in check. Many chess variants feature check, such as shogi, xiangqi, and janggi. Overview A check is the result of a move that places the opposing king under an immediate threat of capture by one (or occasionally two) of the player's pieces. Making a move that checks is sometimes called "giving check". Even if a piece is pinned against the player's own king, it may still give check. For example, in the diagrammed position, White has just played Be4+, simultane ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indian Defense
In the game of chess, Indian Defence or Indian Game is a broad term for a group of chess opening, openings characterised by the moves: :1. b:Chess Opening Theory/1. d4, d4 b:Chess Opening Theory/1. d4/1...Nf6, Nf6 They are all to varying degrees hypermodernism (chess), hypermodern defences, where Black invites White to establish an imposing presence in the with the plan of undermining and ultimately destroying it. Although the Indian defences were championed in the 1920s by players in the hypermodern school, they were not fully accepted until Russian players showed in the late 1940s that these systems are sound for Black. Since then, the Indian defences have become a popular way for Black to respond to 1.d4 because they often offer a balanced game with winning chances for both sides. transposition (chess), Transpositions are important and many variations can be reached by several move orders. It is also possible to transpose back into classical openings such as the Queen's Gambit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Encyclopaedia Of Chess Openings
The ''Encyclopaedia of Chess Openings'' () is a reference work describing the state of opening theory in chess, originally published in five volumes from 1974 to 1979 by the Serbian company Šahovski Informator (Chess Informant). It is currently undergoing its fifth edition. ''ECO'' may also refer to the opening classification system used by the encyclopedia. Overview Both ''ECO'' and ''Chess Informant'' are published by the Belgrade-based company Šahovski Informator. The moves are taken from thousands of master games and from published analysis in ''Informant'' and compiled by the editors, most of whom are grandmasters, who select the lines which they consider most relevant or critical. The chief editor since the first edition has been Aleksandar Matanović. The openings are provided in an ''ECO'' table that concisely presents the opening lines considered most critical by the editors. ''ECO'' covers the openings in more detail than rival single volume publications such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Efim Bogoljubow
Efim Bogoljubow ( or ), also known as Ewfim Dimitrijewitsch Bogoljubow, ( (); also Romanized ''Bogoljubov'', ''Bogolyubov''; uk, Юхим Дмитрович Боголюбов, Yukhym Dmytrovych Boholiubov; April 14, 1889 – June 18, 1952) was a Russian-born German chess player who played two matches against Alexander Alekhine for the world championship. He was granted the title of grandmaster by FIDE in 1951. Early career Bogoljubow learned how to play chess at 15 years old, and developed a serious interest at the age of 18. His father was a priest, and he originally wanted to become one and studied theology in Kiev, but he decided otherwise and enrolled in the Polytechnical Institute to study agriculture.Efim Bogoljubov Chess Federation of Russia He did not finish his studies and instead focused on chess. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
