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Black Knights' Tango
The Black Knights' Tango (also known as the Mexican Defense, Two Knights' Tango or Kevitz–Trajkovic Defense) is a chess opening beginning with the moves: :1. d4 Nf6 :2. c4 Nc6 This position can also be reached by transposition, for example 1.c4 Nf6, 1.d4 Nc6, or 1.c4 Nc6. History The opening originated in the 1920s, when it was played by both the Mexican grandmaster Carlos Torre (hence the name "Mexican Defense") and the American master Alexander Kevitz (the "Kevitz" in "Kevitz–Trajkovic Defense"). Torre used it to defeat then-U.S. Chess Champion Frank James Marshall in only seven moves. It was later played by the Yugoslav master Mihailo Trajkovic and the Soviet grandmaster Anatoly Lutikov. After decades of obscurity, the opening was revitalized by the International Master Georgi Orlov, who published a booklet and a book about it in 1992 and 1998, respectively. Orlov rechristened the opening the "Black Knights' Tango". Since 1992, the opening has been employed by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Friedrich Sämisch
Friedrich Sämisch (20 September 1896 – 16 August 1975) was a German chess player and chess theorist. He was among the inaugural recipients of the title International Grandmaster from FIDE in 1950. Background Sämisch was a bookbinder before taking up chess full-time. As a player, he had a reputation for getting into time trouble though somewhat inconsistently he was a fine player of lightning chess. He was also said to be a fine player of blindfold chess, with world champion Alexander Alekhine observing: 'Of all the modern masters that I have had occasion to observe playing blindfold chess, it is Sämisch who interests me the most; his great technique, his speed and precision have always made a profound impression on me'. Main competitive results * 2nd at Berlin 1920 * 1st at Vienna, Austria in 1921 (champion of the first, although unofficial, Austrian Chess Championship), above Max Euwe, Gyula Breyer, Ernst Grünfeld and Savielly Tartakower * 2nd at Hamburg 1921 * equ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joel Benjamin
Joel Lawrence Benjamin (born March 11, 1964) is an American chess player who holds the FIDE title of Grandmaster (GM). In 1998, he was voted "Grandmaster of the Year" by the U.S. Chess Federation. , his Elo rating was 2506, making him the No. 54 player in the U.S. and the 888th-highest rated player in the world. Life and career Benjamin is a native of Brooklyn, New York City, and grew up in the Marine Park neighborhood, where he attended PS 222. He was in the class for "intellectually gifted children". He is now a New Jersey resident, married to Deborah, and they have two children, Aidan and Amy. He graduated from Yale University with a major in history in 1985. He became the youngest-ever U.S. chess master at age 13, a record previously held by Bobby Fischer. This record was broken by Stuart Rachels and is now held by Samuel Sevian. As a junior, he won the National Elementary championship (1976), the National Junior High championship (1978), and the National High School ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Correspondence Chess
Correspondence chess is chess played by various forms of long-distance correspondence, traditionally through the postal system. Today it is usually played through a correspondence chess server, a public internet chess forum, or email. Less common methods that have been employed include fax, homing pigeon and phone. It is in contrast to (OTB) chess, where the players sit at a chessboard at the same time, or play each other in real time via the internet. Correspondence chess allows people or clubs who are geographically distant to play one another without meeting in person. These distant relationships are just one of the many distinct appeals of correspondence chess. The length of a game played by correspondence can vary depending on the method used to transmit moves: a game played via server or by email might last no more than a few days, weeks, or months; a game played by post between players in different countries might last several years. Structure Correspondence chess diff ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Old Indian Defense
The Old Indian Defense is a chess opening defined by the moves: :1. d4 Nf6 :2. c4 d6 This opening is distinguished from the King's Indian Defense in that Black develops their on e7 rather than by fianchetto on g7. Mikhail Chigorin pioneered this defense late in his career. The Old Indian is considered sound, though developing the bishop at e7 is less than the fianchetto, and it has never attained the popularity of the King's Indian. Some King's Indian players will use the Old Indian to avoid certain anti-King's Indian systems, such as the Sämisch and Averbakh Variations. The opening is classified in the ''Encyclopaedia of Chess Openings'' with the codes A53–A55. Main line: 3.Nc3 e5 The Main line is 3. Nc3 e5 4. Nf3 Nbd7 5. e4; White can also play 4.dxe5 dxe5 5.Qxd8+, but despite the displacement of Black's king, this has long been known to offer no advantage, e.g. 5...Kxd8 6.Nf3 Nfd7, with Black often following up with some combination of ...c6, ...Kd8–c7, .. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
English Opening
The English Opening is a chess opening that begins with the move: :1. c4 A flank opening, it is the fourth most popular and, according to various databases, one of the four most successful of White's twenty possible first moves. White begins the fight for the by staking a claim to the d5-square from the wing, in hypermodern style. Although many lines of the English have a distinct character, the opening is often used as a transpositional device in much the same way as 1.Nf3 – to avoid such highly regarded responses to 1.d4 as the Nimzo-Indian and Grünfeld Defences — and is considered reliable and flexible. The English derives its name from the leading 19th century English master Howard Staunton, who played it during his 1843 match with Saint-Amant and at London 1851, the first international tournament. It did not inspire Staunton's contemporaries and caught on only in the twentieth century. It is now recognised as a opening that may be used to reach both classical an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catalan Opening
The Catalan Opening is a chess opening where White plays d4 and c4 and fianchettoes the white bishop on g2. A common opening sequence is 1.d4 Nf6 2.c4 e6 3.g3, although various other openings can transpose into the Catalan. The ''Encyclopaedia of Chess Openings'' lists codes E01–E09 for lines with 1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2; other lines are part of E00. In the Catalan, White adopts a combination of the Queen's Gambit and Réti Opening. White combines the space-gaining moves d4 and c4 with g3, preparing to fianchetto the king's bishop. This places pressure mainly on the queenside while hoping to keep the white king safe in the long-term. The c4-pawn can become vulnerable, however, and White might have to sacrifice a pawn. Black has two main approaches to play against the Catalan: in the Open Catalan Black plays ...dxc4 and can either try to hold on to the pawn with ...b5 or give it back for extra time to free their game. In the Closed Catalan, Black does not capture on c4; th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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] |
Chigorin Defense
The Chigorin Defense is a chess opening named for 19th-century Russian master Mikhail Chigorin. An uncommonly played defense to the Queen's Gambit, it begins with the following moves: :1. d4 d5 :2. c4 Nc6 The Chigorin Defense violates several classical principles: Black does not maintain the center pawn at d5, the c-pawn is blocked, and Black must be willing to trade a bishop for a knight. In return, Black gets quick and piece pressure on the . Although opening assessments change as improvements are found for each side, the Chigorin is generally considered for Black, and it is useful as a surprise weapon against the Queen's Gambit. Alexander Morozevich is perhaps the only modern grandmaster who regularly plays the Chigorin Defense; in the 1980s, Vasily Smyslov did employ the opening against Garry Kasparov, achieving a draw. Morozevich has also published a book on the Chigorin Defense,Alexander Morozevich & Vladimir Barskij, ''The Chigorin Defence According to Morozevich'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bogo-Indian Defense
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] |
Nimzo-Indian Defense
The Nimzo-Indian Defence is a chess opening characterised by the moves: :1. d4 Nf6 :2. c4 e6 :3. Nc3 Bb4 Other move orders, such as 1.c4 e6 2.Nc3 Nf6 3.d4 Bb4, are also feasible. In the ''Encyclopaedia of Chess Openings'', the Nimzo-Indian is classified as E20–E59. This hypermodern opening was developed by Aron Nimzowitsch who introduced it to master-level chess in the early 20th century. Unlike most Indian openings, the Nimzo-Indian does not involve an immediate fianchetto, although Black often follows up with ...b6 and ...Bb7. By pinning White's knight, Black prevents the threatened 4.e4 and seeks to inflict doubled pawns on White. White will attempt to create a and develop their pieces to prepare for an assault on the Black position. Black's delay in committing to a pawn structure makes the Nimzo-Indian (sometimes colloquially referred to as the "Nimzo") a very flexible defence to 1.d4. It can also transpose into lines of the Queen's Gambit or Queen's Indian Defen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
King's Indian Defence
The King's Indian Defence is a common chess opening. It is defined by the following moves: :1. d4 Nf6 :2. c4 g6 Black intends to follow up with 3...Bg7 and 4...d6 (the Grünfeld Defence arises when Black plays 3...d5 instead, and is considered a separate opening). White's major third move options are 3.Nc3, 3.Nf3 or 3.g3, with both the King's Indian and Grünfeld playable against these moves. The ''Encyclopaedia of Chess Openings'' classifies the King's Indian Defence under the codes E60 through E99. The King's Indian is a hypermodern opening, where Black deliberately allows White control of the with its pawns, with the view to subsequently challenge it. In the most critical lines of the King's Indian, White erects an imposing pawn centre with Nc3 followed by e4. Black stakes out its own claim to the centre with the Benoni-style ...c5, or ...e5. If White resolves the central pawn tension with d5, then Black follows with either ...b5 and queenside play, or ...f5 and an ... [...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] |
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