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Queen's Gambit Declined
The Queen's Gambit Declined (or QGD) is a chess opening in which Black declines a pawn offered by White in the Queen's Gambit: :1. d4 d5 :2. c4 e6 This is known as the ''Orthodox Line'' of the Queen's Gambit Declined. When the "Queen's Gambit Declined" is mentioned, it is usually assumed to be referring to the Orthodox Line; see " Other lines" below. The Orthodox Line can be reached by a number of different , such as 1.d4 Nf6 2.c4 e6 3.Nf3 d5; 1.d4 e6 2.c4 d5; 1.c4 e6 2.Nc3 d5 3.d4; 1.Nf3 d5 2.c4 e6 3.d4; and so on. General concepts Playing 2...e6 releases Black's dark-squared bishop, while obstructing his light-squared bishop. By declining White's temporary pawn sacrifice, Black erects a solid position; the pawns on d5 and e6 give Black a foothold in the . The Queen's Gambit Declined has the reputation of being one of Black's most reliable defenses to 1.d4. In this situation, White will try to exploit the passivity of Black's light-squared bishop, and Black will try to rel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semi-Slav
The Semi-Slav Defense is a variation of the Queen's Gambit chess opening defined by the position reached after the moves: :1. d4 d5 :2. c4 c6 :3. Nf3 Nf6 :4. Nc3 e6 The position may readily be reached by a number of different . Black's supporting pawns resemble a mixture of the Orthodox Queen's Gambit Declined, e6, and the Slav Defense, c6. Black is threatening to capture the white pawn on c4 and hold it with ...b7–b5. White can avoid this in a number of ways. About 80% of games continue 5.Bg5 or 5.e3: the former constitutes a sharp pawn sacrifice, while the latter restricts the dark-squared bishop from its natural development to g5. Other possible moves are 5.Qb3, 5.g3 and 5.cxd5, the last of which, after 5...exd5, leads to a line of the QGD Exchange Variation where White's early Nf3 enables Black's queen bishop to freely develop, which should give equality (''ECO'' codes D43 and D45). It is worth noting that 5.Bf4 is considered somewhat inaccurate, as 5...dx ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semi-Slav Defense
The Semi-Slav Defense is a variation of the Queen's Gambit chess opening defined by the position reached after the moves: :1. d4 d5 :2. c4 c6 :3. Nf3 Nf6 :4. Nc3 e6 The position may readily be reached by a number of different . Black's supporting pawns resemble a mixture of the Orthodox Queen's Gambit Declined, e6, and the Slav Defense, c6. Black is threatening to capture the white pawn on c4 and hold it with ...b7–b5. White can avoid this in a number of ways. About 80% of games continue 5.Bg5 or 5.e3: the former constitutes a sharp pawn sacrifice, while the latter restricts the dark-squared bishop from its natural development to g5. Other possible moves are 5.Qb3, 5.g3 and 5.cxd5, the last of which, after 5...exd5, leads to a line of the QGD Exchange Variation where White's early Nf3 enables Black's queen bishop to freely develop, which should give equality (''ECO'' codes D43 and D45). It is worth noting that 5.Bf4 is considered somewhat inaccurate, as 5...dx ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Queen's Gambit
The Queen's Gambit is the chess opening that starts with the moves: :1. d4 d5 :2. c4 It is one of the oldest openings and is still commonly played today. It is traditionally described as a ''gambit'' because White appears to sacrifice the c-pawn; however, this could be considered a misnomer as Black cannot retain the pawn without incurring a disadvantage. History The Queen's Gambit is one of the oldest known openings in chess. It was mentioned in the Göttingen manuscript of 1490 and was later analyzed by Gioachino Greco in the 17th century. In the 18th century, it was recommended by Philipp Stamma and is sometimes known as the Aleppo Gambit in his honor. During the early period of modern chess, queen pawn openings were not in fashion, and the Queen's Gambit did not become commonplace until the 1873 tournament in Vienna. As Wilhelm Steinitz and Siegbert Tarrasch developed chess theory and increased the appreciation of , the Queen's Gambit grew more popular, reaching its ... [...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] |
Botvinnik Versus Capablanca, AVRO 1938
On 22 November 1938, Mikhail Botvinnik (playing white) defeated José Raúl Capablanca (playing black) in one of the most famous games in chess history. The game was played in round 11 of the AVRO tournament in Rotterdam. Capablanca was a former World Chess Champion (1921-27), while Botvinnik would later become World Champion himself (1948-57). The game was widely praised, including by Garry Kasparov who said: ..Botvinnik played what was altogether the "game of his life" against Capablanca. It was not just that it was judged the most brilliant in the tournament and to be worth two first prizes, but it was even suggested that, by analogy with the "immortal" and "evergreen" games, it should be called "peerless" or "classical"! This was the last game between the two before Capablanca's death in 1942; he was suffering poor health during the tournament. Botvinnik and Capablanca had previously played seven other games of competitive tournament chess, including another game with the op ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pawn Structure
In a game of chess, the pawn structure (sometimes known as the pawn skeleton) is the configuration of pawns on the chessboard. Because pawns are the least mobile of the chess pieces, the pawn structure is relatively static and thus plays a large role in determining the strategic character of the position. General observations Weaknesses in the pawn structure, such as isolated, doubled, or backward pawns and , once created, are usually permanent. Care must therefore be taken to avoid them (but there are exceptions—for instance see ''Boleslavsky hole'' below). In the absence of these structural weaknesses, it is not possible to assess a pawn formation as good or bad—much depends on the position of the pieces. The pawn formation does determine the overall strategies of the players to a large extent, however, even if arising from unrelated openings. Pawn formations symmetrical about a vertical line (such as the ''e5 Chain'' and the ''d5 Chain'') may appear similar, but they te ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ragozin Variation
The Queen's Gambit Declined (or QGD) is a chess opening in which Black declines a pawn offered by White in the Queen's Gambit: :1. d4 d5 :2. c4 e6 This is known as the ''Orthodox Line'' of the Queen's Gambit Declined. When the "Queen's Gambit Declined" is mentioned, it is usually assumed to be referring to the Orthodox Line; see " Other lines" below. The Orthodox Line can be reached by a number of different , such as 1.d4 Nf6 2.c4 e6 3.Nf3 d5; 1.d4 e6 2.c4 d5; 1.c4 e6 2.Nc3 d5 3.d4; 1.Nf3 d5 2.c4 e6 3.d4; and so on. General concepts Playing 2...e6 releases Black's dark-squared bishop, while obstructing his light-squared bishop. By declining White's temporary pawn sacrifice, Black erects a solid position; the pawns on d5 and e6 give Black a foothold in the . The Queen's Gambit Declined has the reputation of being one of Black's most reliable defenses to 1.d4. In this situation, White will try to exploit the passivity of Black's light-squared bishop, and Black will try to r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stonewall Defence
The Dutch Defence is a chess opening characterised by the moves: :1. d4 f5 Black's 1...f5 stakes a claim to the e4-square and envisions an attack in the middlegame on White's ; however, it also weakens Black's kingside to an extent (especially the e8–h5 diagonal). Like its 1.e4 counterpart, the Sicilian Defence, the Dutch is an aggressive and unbalancing opening, resulting in the lowest percentage of draws among the most common replies to 1.d4. Historically, White has tried many methods to exploit the kingside weaknesses, such as the Staunton Gambit (2.e4) and Korchnoi Attack (2.h3 and 3.g4). The Dutch has never been a main line against 1.d4 and is rarely seen today in high-level competition, although a number of top players, including Alexander Alekhine, Bent Larsen, Paul Morphy, Miguel Najdorf, and Hikaru Nakamura have used it with success. Its most notable use may have been in 1951, when both world champion Mikhail Botvinnik and his challenger, David Bronstein, played ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marshall Gambit where after 1.e4 c5 2.Nf3 e6 3.d4, black plays 3.. ...
The Marshall Gambit may refer to a number of chess openings named after the American chess master Frank Marshall. *The Marshall Gambit in the Scandinavian Defense. 1.e4 d5 2.exd5 Nf6 *The Marshall Gambit in the Tarrasch Defense: 1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.e4 *The Marshall Gambit in the Semi-Slav Defense: 1.d4 d5 2.c4 e6 3.Nc3 c6 4.e4 dxe4 5.Nxe4 Bb4+ 6.Bd2 *Marshall Gambit in the Paulsen Variation of the French Defense, 1.e4 e6 2.d4 d5 3.Nc3 c5 Other chess moves *Marshall Attack, in the Ruy Lopez which also sacrifices a pawn, and can therefore be called a "gambit" * Marshall Defense, in the Queen's Gambit Declined * Marshall Counterattack in the Sicilian Defense The Sicilian Defence is a chess opening that begins with the following moves: :1. e4 c5 The Sicilian is the most popular and best-scoring response to White's first move 1.e4. Opening 1.d4 is a statistically more successful opening for White b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Noteboom Variation
Noteboom, Notenboom and Nooteboom are Dutch surnames originally meaning "nut tree". Notable people with those names include: ;Noteboom *Daniël Noteboom (1910–1932), Dutch chess player *Erin Noteboom (born 1972), American-born Canadian author with the pen name "Eric Bow" *Joshua Noteboom, a.k.a. Josh One, American DJ *Joseph Noteboom (born 1995), American football player * Stephen Noteboom (born 1969), Dutch tennis player ;Notenboom *Bernice Notenboom (born 1962), Dutch climate journalist and adventurer *Francis Notenboom (born 1957), Belgian archer *Harrij Notenboom (born 1926), Dutch politician ;Nooteboom * (born 1928), Dutch Secretary of Finance 1977–80 * Cees Nooteboom (born 1933), Dutch novelist, poet, and journalist * (1930–2012), Dutch chemist and politician * Hans Peter Nooteboom (born 1934), Dutch botanist See also *, Dutch oversize load trailer company founded in 1881 by Willem Nooteboom * Nottebohm Nottebohm is a German surname meaning "nut tree". Notable people ... [...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] |
Mikhail Botvinnik
Mikhail Moiseyevich Botvinnik, ( – May 5, 1995) was a Soviet and Russian chess grandmaster. The sixth World Chess Champion, he also worked as an electrical engineer and computer scientist and was a pioneer in computer chess. Botvinnik was the first world-class player to develop within the Soviet Union. He also played a major role in the organization of chess, making a significant contribution to the design of the World Chess Championship system after World War II and becoming a leading member of the coaching system that enabled the Soviet Union to dominate top-class chess during that time. His pupils include World Champions Anatoly Karpov, Garry Kasparov and Vladimir Kramnik. Early years Botvinnik was born on August 17, 1911, in what was then Kuokkala, Vyborg Governorate, Grand Duchy of Finland, now the district of Repino in Saint Petersburg. His parents were Russian Jews; his father, Moisei Botvinnik (1878–1931), was a dental technician and his mother, Shifra (Se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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