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Lasker Trap
The Lasker Trap is a chess opening trap in the Albin Countergambit. It is named after Emanuel Lasker, although it was first noted by Serafino Dubois. It is unusual in that it features an underpromotion as early as the seventh move. Analysis 1. d4 d5 2. c4 :The Queen's Gambit. 2... e5 3. dxe5 d4 :The Albin Countergambit. The black pawn on d4 is stronger than it appears. 4. e3 :Careless. Usual and better is 4.Nf3. 4... Bb4+ 5. Bd2 dxe3 (see diagram) :Now White's best option is to accept doubled pawns with 6.fxe3, which the ''Encyclopaedia of Chess Openings'' gives as the best move. Black gets a slight advantage, but White has avoided the worst and can defend. 6. Bxb4 : Blundering into the Lasker Trap. 6... exf2+ :Now 7.Kxf2 would lose the queen to 7...Qxd1, so White must play 7.Ke2. 7. Ke2 fxg1=N+! (diagram) :Promotion to a knight is the key to the trap. (If instead 7...fxg1=Q, then 8.Qxd8+ Kxd8 9.Rxg1 is okay for White.) Now 8.Rxg1 Bg4+ skewers White's queen, so the king ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chess Opening
The opening is the initial stage of a chess game. It usually consists of established Chess_theory#Opening_theory, theory. The other phases are the chess middlegame, middlegame and the chess endgame, endgame. Many opening sequences, known as ''openings'', have standard names such as "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 Chess theory#Opening theory, opening theory, the players are said to be "out of book". In some openings, book lines have been worked out for over 30 moves, such as some lines in the classical King's Indian Defense and in the Sicilian Defense, Najdorf Variation, Najdorf Variation of the Sicilian Defense. Professional chess players spend years studying openings, and they continue doing so throughout their careers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skewer (chess)
In chess, a skewer is an attack upon two pieces in a line and is similar but opposite to a pin; the difference is that in a skewer, the more valuable piece is the one under direct attack and the less valuable piece is behind it. The opponent is compelled to move the more valuable piece to avoid its capture, thereby exposing the less valuable piece which can then be captured (see chess piece relative value). Only line pieces (i.e. bishops, rooks, and queens) can skewer; kings, knights, and pawns cannot. Details Compared to the pin, a passive action with only an implied threat, the skewer is a direct attack upon the more valuable piece, making it generally a much more powerful and effective tactic. The victim of a skewer often cannot avoid losing ; the only question is which material will be lost. The skewer occurs less often than the pin in actual play. When it does occur, however, it is often decisive. In this diagram, with White to move, the white king and queen are skew ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxford University Press
Oxford University Press (OUP) is the publishing house of the University of Oxford. It is the largest university press in the world. Its first book was printed in Oxford in 1478, with the Press officially granted the legal right to print books by decree in 1586. It is the second-oldest university press after Cambridge University Press, which was founded in 1534. It is a department of the University of Oxford. It is governed by a group of 15 academics, the Delegates of the Press, appointed by the Vice Chancellor, vice-chancellor of the University of Oxford. The Delegates of the Press are led by the Secretary to the Delegates, who serves as OUP's chief executive and as its major representative on other university bodies. Oxford University Press has had a similar governance structure since the 17th century. The press is located on Walton Street, Oxford, Walton Street, Oxford, opposite Somerville College, Oxford, Somerville College, in the inner suburb of Jericho, Oxford, Jericho. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Oxford Companion To Chess
''The Oxford Companion to Chess'' is a reference book on the game of chess written by David Vincent Hooper and Kenneth Whyld. The book is written in an encyclopedia format. The book belongs to the Oxford Companions series. Details The first edition of the book was published in 1984 by Oxford University Press. The second edition (1992) has over 2,500 entries, including rules of chess, rules, list of chess terms, terms, chess strategy, strategies, chess tactics, tactics, over 500 brief biographies of famous players, and entries on more than 700 named chess opening, openings and opening variations. In the back of the book is a comprehensive index of opening variations and sub-variations, listing 1,327 named variations. The book also discusses variants from other countries (such as shogi or xiangqi), chess variants (such as three dimensional chess), and some forms of fairy chess. Editions * First published in 1984 by Oxford University Press * Reissued in paperback (with correction ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Chess Traps
In chess, a trap is a move which tempts the opponent to play a bad move. Traps are common in all phases of the game; in the opening, some traps have occurred often enough that they have acquired names. If the opponent sees through the trap, it can backfire. List of chess traps Ordered by chess opening: *Albin Countergambit: Lasker Trap *Blackmar–Diemer Gambit: Halosar Trap *Bogo-Indian Defence: Monticelli Trap *Budapest Gambit: Kieninger Trap * Englund Gambit Trap *Italian Game: Blackburne Shilling Gambit *Petrov's Defence: Marshall Trap *Philidor Defence: Légal Trap *Queen's Gambit Declined: **Elephant Trap ** Rubinstein Trap *Ruy Lopez: ** Mortimer Trap ** Noah's Ark Trap ** Tarrasch Trap ** Fishing Pole Trap *Sicilian Defence: ** Magnus Smith Trap ** Siberian Trap * Vienna Gambit: Würzburger Trap See also * Gambit * Fool's mate * Scholar's mate * Swindle (chess) In chess, a swindle is a ruse by which a player in a losing position tricks their opponent a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rules Of Chess
The rules of chess (also known as the laws of chess) govern the play of the game of chess. Chess is a two-player Abstract strategy game, abstract strategy board game. Each player controls sixteen chess piece, pieces of six types on a chessboard. Each type of piece moves in a distinct way. The object of the game is to checkmate the opponent's King (chess), king; checkmate occurs when a king is threatened with capture and has no escape. A game can end in various ways besides checkmate: a player can #Resigning, resign, and there are several ways a game can end in a Draw (chess), draw. While the exact origins of chess are unclear, modern rules first took form during the Middle Ages. The rules continued to be slightly modified until the early 19th century, when they reached essentially their current form. The rules also varied somewhat from region to region. Today, the standard rules are set by FIDE (Fédération Internationale des Échecs), the international governing body for ches ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fork (chess)
In chess, a fork is a tactic in which a piece multiple enemy pieces simultaneously. The attacker usually aims to capture one of the forked pieces. The defender often cannot counter every threat. A fork is most effective when it is , such as when the king is put in check. A fork is a type of . Terminology A fork is an example of a . The type of fork is named after the type of forking piece. For example, a fork by a knight is a ''knight fork''. The attacked pieces are ''forked''. If the king King is a royal title given to a male monarch. A king is an Absolute monarchy, absolute monarch if he holds unrestricted Government, governmental power or exercises full sovereignty over a nation. Conversely, he is a Constitutional monarchy, ... is one of the attacked pieces, the term ''absolute fork'' is sometimes used, while a fork not involving the enemy king is a ''relative fork''. A fork of the king and queen, the highest -gaining fork possible, is sometimes called a ''royal fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blunder (chess)
In chess, a blunder is a critically bad mistake that severely worsens the player's position by allowing a loss of , checkmate, or anything similar. It is usually caused by some tactical oversight, whether due to time trouble, overconfidence, or carelessness. Although blunders are most common in beginner 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 two question marks ("??") after the move notation. 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 considere ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chess Trap
In chess, a trap is a move which tempts the opponent to play a bad move. Traps are common in all phases of the game; in the chess opening, opening, some traps have occurred often enough that they have acquired names. If the opponent sees through the trap, it can backfire. List of chess traps Ordered by chess opening: *Albin Countergambit: Lasker Trap *Blackmar–Diemer Gambit: Halosar Trap *Bogo-Indian Defence: Monticelli Trap *Budapest Gambit: Kieninger Trap *Englund Gambit, Englund Gambit Trap *Italian Game: Blackburne Shilling Gambit *Petrov's Defence: Marshall Trap *Philidor Defence: Légal Trap *Queen's Gambit Declined: **Elephant Trap **Rubinstein Trap *Ruy Lopez: **Mortimer Trap **Noah's Ark Trap **Tarrasch Trap **Fishing Pole (Chess), Fishing Pole Trap *Sicilian Defence: **Magnus Smith Trap **Siberian Trap *Vienna Gambit: Würzburger Trap See also * Gambit * Fool's mate * Scholar's mate * Swindle (chess) References {{DEFAULTSORT:Chess Trap Chess theory, T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Encyclopaedia Of Chess Openings
The ''Encyclopaedia of Chess Openings'' (''ECO'') is a reference work describing the state of Chess theory#Opening theory, opening theory in chess, originally published in five volumes from 1974 to 1979 by the Socialist Federal Republic of Yugoslavia, Yugoslavian 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 Chess Informant, 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 Grandmaster (chess), grandmasters, who select the lines which they consider most relevant or critical. The chief editor since the first edition has been Aleksandar Matanović (1930-2023). The openings are provided in an chess opening theory table, ''ECO'' table that concisely p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doubled Pawns
In chess, doubled pawns are two pawns of the same color residing on the same file. Pawns can become doubled only when one pawn captures onto a file on which another friendly pawn resides. In the diagram, the white pawns on the b-file and e-file are doubled. The pawns on the are doubled and isolated. In most cases, doubled pawns are considered a weakness due to their inability to defend each other. This inability, in turn, makes it more difficult to achieve a breakthrough which could create a passed pawn (often a deciding factor in endgames). In the case of isolated doubled pawns, these problems are only further aggravated. Several chess strategies and openings are based on burdening the opponent with doubled pawns, a strategic weakness. There are, however, cases where accepting doubled pawns can be advantageous because doing so may open up a file for a rook, or because the doubled pawns perform a useful function, such as defending important squares. Also, if the opponent i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
