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Durkin Opening
The Durkin Opening (also known as the Durkin Attack or the Sodium Attack) is a rarely played chess opening. :1. Na3 The Durkin Opening is named for Robert T. Durkin (1923–2014) of New Jersey. The name "Sodium Attack" comes from the algebraic notation 1.Na3, as ''Na'' is the chemical symbol for the element sodium. Similarly, the Amar Opening (1.Nh3) is sometimes referred to as the "Ammonia Opening". White may follow up by playing c4, e.g. 1...d5 2.c4 dxc4 3.Nxc4. Assessment This development of the does little to utilize White's advantage of the first move. On a3 the knight does not control squares, and White would have to move this knight again (e.g., to c2 or c4) for it to follow common rules such as controlling the center. Angus Dunnington suggests that combining this with a gradual central expansion should give White a reasonable position. Variations *Durkin Gambit (1.Na3 e5 2.Nc4 Nc6 3. e4 f5) See also * List of chess openings * List of chess openings named after peo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chess Opening
A chess opening or simply an opening is the initial stage of a chess game. It usually consists of established theory; the other phases are the middlegame and the endgame. Many opening sequences have standard names such as the "Sicilian Defense". ''The Oxford Companion to Chess'' lists 1,327 named openings and variants, and there are many others with varying degrees of common usage. Opening moves that are considered standard are referred to as "book moves", or simply "book". When a game begins to deviate from known opening theory, the players are said to be "out of book". In some openings, "book" lines have been worked out for over 30 moves, as in the classical King's Indian Defense and in the Najdorf variation of the Sicilian Defense. Professional chess players spend years studying openings, and continue doing so throughout their careers, as opening theory continues to evolve. Players at the club level also study openings but the importance of the opening phase is smaller t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chess Opening Theory/1
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert T
The name Robert is an ancient Germanic given name, from Proto-Germanic "fame" and "bright" (''Hrōþiberhtaz''). Compare Old Dutch ''Robrecht'' and Old High German ''Hrodebert'' (a compound of '' Hruod'' ( non, Hróðr) "fame, glory, honour, praise, renown" and ''berht'' "bright, light, shining"). It is the second most frequently used given name of ancient Germanic origin. It is also in use as a surname. Another commonly used form of the name is Rupert. After becoming widely used in Continental Europe it entered England in its Old French form ''Robert'', where an Old English cognate form (''Hrēodbēorht'', ''Hrodberht'', ''Hrēodbēorð'', ''Hrœdbœrð'', ''Hrœdberð'', ''Hrōðberχtŕ'') had existed before the Norman Conquest. The feminine version is Roberta. The Italian, Portuguese, and Spanish form is Roberto. Robert is also a common name in many Germanic languages, including English, German, Dutch, Norwegian, Swedish, Scots, Danish, and Icelandic. It can be use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Jersey
New Jersey is a state in the Mid-Atlantic and Northeastern regions of the United States. It is bordered on the north and east by the state of New York; on the east, southeast, and south by the Atlantic Ocean; on the west by the Delaware River and Pennsylvania; and on the southwest by Delaware Bay and the state of Delaware. At , New Jersey is the fifth-smallest state in land area; but with close to 9.3 million residents, it ranks 11th in population and first in population density. The state capital is Trenton, and the most populous city is Newark. With the exception of Warren County, all of the state's 21 counties lie within the combined statistical areas of New York City or Philadelphia. New Jersey was first inhabited by Native Americans for at least 2,800 years, with the Lenape being the dominant group when Europeans arrived in the early 17th century. Dutch and Swedish colonists founded the first European settlements in the state. The British later seized control o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemical Symbol
Chemical symbols are the abbreviations used in chemistry for chemical elements, functional groups and chemical compounds. Element symbols for chemical elements normally consist of one or two letters from the Latin alphabet and are written with the first letter capitalised. History Earlier symbols for chemical elements stem from classical Latin and Greek language, Greek vocabulary. For some elements, this is because the material was known in ancient times, while for others, the name is a more recent invention. For example, Pb is the symbol for lead (''plumbum'' in Latin); Hg is the symbol for mercury (element), mercury (''hydrargyrum'' in Greek); and He is the symbol for helium (a new Latin name) because helium was not known in ancient Roman times. Some symbols come from other sources, like W for tungsten (''Wolfram'' in German) which was not known in Roman times. A three-letter Systematic element name, temporary symbol may be assigned to a newly synthesized (or not yet synthesize ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sodium
Sodium is a chemical element with the symbol Na (from Latin ''natrium'') and atomic number 11. It is a soft, silvery-white, highly reactive metal. Sodium is an alkali metal, being in group 1 of the periodic table. Its only stable isotope is 23Na. The free metal does not occur in nature, and must be prepared from compounds. Sodium is the sixth most abundant element in the Earth's crust and exists in numerous minerals such as feldspars, sodalite, and halite (NaCl). Many salts of sodium are highly water-soluble: sodium ions have been leached by the action of water from the Earth's minerals over eons, and thus sodium and chlorine are the most common dissolved elements by weight in the oceans. Sodium was first isolated by Humphry Davy in 1807 by the electrolysis of sodium hydroxide. Among many other useful sodium compounds, sodium hydroxide (lye) is used in soap manufacture, and sodium chloride (edible salt) is a de-icing agent and a nutrient for animals including h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amar Opening
The Amar Opening (also known as the Paris Opening, or the Drunken Knight Opening) is a chess opening defined by the move: : 1. Nh3 Analogous to calling the Durkin Opening the "Sodium Attack," this opening could be called the Ammonia Opening, since the algebraic notation 1.Nh3 resembles the chemical formula NH3 for ammonia. The Parisian amateur Charles Amar played it in the 1930s. It was probably named by Savielly Tartakower who used both names for this opening, although the chess author Tim Harding has jokingly suggested that "Amar" is an acronym for "Absolutely mad and ridiculous". Since 1.Nh3 is considered an irregular opening, it is classified under the A00 code in the ''Encyclopaedia of Chess Openings''. Assessment Like the Durkin Opening, White develops a knight to the edge of the board, where it does not control squares. Black's most common reply is 1...d5 which threatens 2...Bxh3, ruining White's pawn structure. White usually plays 2.g3 to prevent this, when Black can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
First-move Advantage In Chess
In chess, there is a general consensus among players and theorists that the player who makes the first move (White) has an inherent advantage. Since 1851, compiled statistics support this view; White consistently slightly more often than Black, usually scoring between 52 and 56 percent. White's is about the same for tournament games between humans and games between computers; however, White's advantage is less significant in blitz games and games between lower-level players. Chess players and theoreticians have long debated whether, given perfect play by both sides, the game should end in a win for White or a draw. Since approximately 1889, when World Champion Wilhelm Steinitz addressed this issue, the consensus has been that a perfectly played game would end in a draw (futile game). A few notable players have argued, however, that White's advantage may be sufficient to a win: Weaver Adams and Vsevolod Rauzer claimed that White is winning after the first move 1.e4, whil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angus Dunnington
Angus Dunnington (born 9 August 1967) is an English poker and online gambling specialist and former professional chess player with the title of International Master (IM). Dunnington is most known for his extensive work in chess opening theory, as well as the psychological aspects of both chess and poker. He stopped playing competitive chess in 2003 in order to spend more time writing, has been a recipient of a Chess Journalists of America award, penned over 1,000 articles and is the author of over 20 books, subjects including chess psychology, unorthodox chess openings and online gambling. Notable games *This game was played in Scarborough, England in 1999 between Charles Storey and Angus Dunnington. Dunnington played Black in a Caro-Kann Defense, Advance Variation: 1.e4 c6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Be3 Bf5 6.Nf3 Qb6 7.Qd2 e6 8.dxc5 Bxc5 9.Bxc5 Qxc5 10.b4 Qb6 11.Na3 Nge7 12.Nb5 0-0 13.Nbd4 Be4 14.b5 Nxd4 15.Nxd4 f6 16.exf6 Rxf6 17.f3 Bg6 18.a4 e5 19.a5 Qd6 20.Nb3 e4 21.B ... [...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] |
List Of Chess Openings Named After People
''The Oxford Companion to Chess'' lists 1,327 named openings and variants. Chess players' names are the most common sources of opening names. The name given to an opening is not always that of the first player to adopt it; often an opening is named for the player who was one of the first to popularize it or to publish analysis of it. A *Abonyi Variation of the Budapest Gambit – 1.d4 Nf6 2.c4 e5 3.dxe5 Ng4 4.e4 Nxe5 5.f4 Nec6 – named after István Abonyi; *Adams Attack of the Sicilian Defence – 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.h3 – named after Weaver W. Adams; *Adler Variation of the Budapest Gambit – 1.d4 Nf6 2.c4 e5 3.dxe5 Ng4 4.Nf3 – named after Adler; * Alapin's Opening – 1.e4 e5 2.Ne2 – named after Semyon Alapin; * Alapin Variation of the Sicilian Defence – 1.e4 c5 2.c3 – named after Semyon Alapin; *Albin Countergambit – 1.d4 d5 2.c4 e5 – named after Adolf Albin; *Alburt Variation of the Alekhine's Defence – 1.e4 Nf6 2.e5 Nd5 3.d4 d6 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macmillan Publishers (United States)
Macmillan Inc. is a defunct American book publishing company. Originally established as the American division of the British Macmillan Publishers, the two were later separated and acquired by other companies, with the remnants of the original American division of Macmillan present in McGraw-Hill Education's Macmillan/McGraw-Hill textbooks, Gale's Macmillan Reference USA division, and some trade imprints of Simon & Schuster that were transferred when both companies were owned by Paramount Communications. The German publisher Holtzbrinck, which bought the British Macmillan in 1999, purchased US rights to the Macmillan name in 2001 and rebranded its American division with it in 2007. History Brett family George Edward Brett opened the first Macmillan office in the United States in 1869 and Macmillan sold its U.S. operations to the Brett family, George Platt Brett Sr. and George Platt Brett Jr. in 1896, resulting in the creation of an American company, Macmillan Publishing. Even wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
