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Shogi Tactics
Many basic tactics (手筋 ''tesuji'', also translated as 'clever move') of shogi are similar to those of chess tactics, involving forks, pins, removing the defender and other techniques, all of which are considered very strong when used effectively. However, other tactics, particularly ones involving dropped pieces, have no parallel in western chess. In general, shogi tactics are classified into two categories: (i) piece-related tesujis and (ii) opening/position-related tesujis. Fork A fork (両取り ''ryōtori'') is a move that uses one piece to attack two or more of the opponent's pieces simultaneously, with the aim to achieve material advantage, since the opponent can counter only one of the threats. Forks can, of course, be made by moving a piece to the forking position or by dropping a piece to the forking position. Some forks have specific names in Japanese. A silver forking two pieces from behind is 割り打ちの銀 ''wariuchi no gin'' "silver stabbin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shogi
, also known as Japanese chess, is a strategy board game for two players. It is one of the most popular board games in Japan and is in the same family of games as Western chess, ''chaturanga, Xiangqi'', Indian chess, and '' janggi''. ''Shōgi'' means general's (''shō'' ) board game (''gi'' ). Western chess is sometimes called (''Seiyō Shōgi'' ) in Japan. Shogi was the earliest chess-related historical game to allow captured pieces to be returned to the board by the capturing player. This drop rule is speculated to have been invented in the 15th century and possibly connected to the practice of 15th century mercenaries switching loyalties when captured instead of being killed. The earliest predecessor of the game, chaturanga, originated in India in the sixth century, and the game was likely transmitted to Japan via China or Korea sometime after the Nara period."Shogi". ''Encyclopædia Britannica''. 2002. Shogi in its present form was played as early as the 16th century, while ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sacrifice (chess)
In chess, a sacrifice is a move that gives up a piece with the objective of gaining tactical or positional compensation in other forms. A sacrifice could also be a deliberate exchange of a chess piece of higher value for an opponent's piece of lower value. Any chess piece except the king may be sacrificed. Because players usually try to hold on to their own pieces, offering a sacrifice can come as an unpleasant surprise to one's opponent, putting them off balance and causing them to waste precious time trying to calculate whether the sacrifice is sound or not, and whether to accept it. Sacrificing one's queen (the most valuable piece), or a string of pieces, adds to the surprise, and such games can be awarded . Types of sacrifice Real versus sham Rudolf Spielmann proposed a division between sham and real sacrifices: * In a ''real sacrifice'', the sacrificing player will often have to play on with less than their opponent for quite some time. * In a ''sham sacrifice'', t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shogi Strategy
Shogi, like western chess, can be divided into the opening, middle game and endgame, each requiring a different strategy. The opening consists of arranging one's defenses and positioning for attack, the middle game consists of attempting to break through the opposing defenses while maintaining one's own, and the endgame starts when one side's defenses have been compromised. Tactics Many basic tactics (手筋 ''tesuji'') of shogi are similar to those of chess tactics, involving forks, pins, removing the defender and other techniques, all of which are considered very strong when used effectively. However, other tactics, particularly ones involving dropped pieces, have no parallel in western chess. Relative piece value Shogi pieces may be considered to have different valuations in which some pieces are generally more ''valuable'' than others – all other things being equal. (Cf. piece value in western chess.) There are three main valuation groups: # the king which has an abso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tempo Loss Bishop Exchange
In shogi, Tempo Loss Bishop Exchange or One-Move-Loss Bishop Exchange or Bishop Exchange With Tempo Loss (一手損角換わり ''ittezon kakugawari'') is a Bishop Exchange (Static Rook) opening that has White trading the bishops very early in the game before Black's bishop moves up to the 77 square. Overview The Tempo Loss Bishop Exchange opening was developed by retired player Hitoshige Awaji 9-dan for which he was awarded the prestigious Masuda award in 2006. This opening became popular among professional players around 2004 and was even played in two of the seven matches for the title of Meijin between Toshiyuki Moriuchi and Yoshiharu Habu in 2005. Before the emergence of the Tempo Loss Bishop Exchange, some professional players had considered that Bishop Exchange openings led White to be pushed into defensive positions and to be unable to launch more powerful attacks, hence reducing the amount of possibilities available to the White player. Since the Tempo Loss varia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tempo (chess)
In chess and other chess-like games, a tempo is a "turn" or single move (a half-move or ply made either by White or Black). When a player achieves a desired result in one fewer move, the player is said to "gain a tempo"; conversely, when a player takes one more move than necessary, the player is said to "lose a tempo". Similarly, when a player forces their opponent to make moves not according to their initial plan, one is said to "gain tempo" because the opponent is wasting moves. A move that gains a tempo is often called "a move with tempo". A simple example of losing a tempo may be moving a rook from the h1-square to h5 and from there to h8 in the first diagram; simply moving from h1 to h8 would have achieved the same result with a tempo to spare. However, such maneuvers do not always lose a tempo—the rook on h5 may make some threat which needs to be responded to. In this case, since both players have "lost" a tempo, the net result in terms of time is nil, but the change broug ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Exchange (chess)
In chess, an exchange or trade of chess pieces is a series of closely related moves, typically sequential, in which the two players each other's pieces. Any types of pieces except the kings may possibly be exchanged, i.e. captured in an exchange, although a king can capture an opponent's piece. Either the player of the white or the black pieces may make the first capture of the other player's piece in an exchange, followed by the other player capturing a piece of the first player, often referred to as a ''recapture''. Commonly, the word "exchange" is used when the pieces exchanged are of the same type or of about equal value, which is an ''even exchange''. According to chess tactics, a bishop and a knight are usually of about equal value. If the values of the pieces exchanged are not equal, then the player who captures the higher-valued piece can be said to be ''up the exchange'' or ''wins the exchange'', while the opponent who captures the lower-valued piece is ''down the e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphorism
An aphorism (from Greek ἀφορισμός: ''aphorismos'', denoting 'delimitation', 'distinction', and 'definition') is a concise, terse, laconic, or memorable expression of a general truth or principle. Aphorisms are often handed down by tradition from generation to generation. The concept is generally distinct from those of an adage, brocard, chiasmus, epigram, maxim (legal or philosophical), principle, proverb, and saying; although some of these concepts may be construed as types of aphorism. Often, aphorisms are distinguished from other short sayings by the need for interpretation to make sense of them. In ''A Theory of the Aphorism'', Andrew Hui defined an aphorism as "a short saying that requires interpretation." History The word was first used in the '' Aphorisms'' of Hippocrates, a long series of propositions concerning the symptoms and diagnosis of disease and the art of healing and medicine. The often cited first sentence of this work is: "" - "life is shor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shogi Tactics
Many basic tactics (手筋 ''tesuji'', also translated as 'clever move') of shogi are similar to those of chess tactics, involving forks, pins, removing the defender and other techniques, all of which are considered very strong when used effectively. However, other tactics, particularly ones involving dropped pieces, have no parallel in western chess. In general, shogi tactics are classified into two categories: (i) piece-related tesujis and (ii) opening/position-related tesujis. Fork A fork (両取り ''ryōtori'') is a move that uses one piece to attack two or more of the opponent's pieces simultaneously, with the aim to achieve material advantage, since the opponent can counter only one of the threats. Forks can, of course, be made by moving a piece to the forking position or by dropping a piece to the forking position. Some forks have specific names in Japanese. A silver forking two pieces from behind is 割り打ちの銀 ''wariuchi no gin'' "silver stabbin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tsumeshogi
or tsume (詰め) is the Japanese term for a shogi miniature problem in which the goal is to checkmate the opponent's king. Tsume problems usually present a situation that might occur in a shogi game (although unrealistic artistic tsume shogi exists), and the solver must find out how to achieve checkmate. It is similar to a mate-in-''n'' chess problem. The term tsumi (詰み) means the state of checkmate itself. The verb form is tsumu (詰む) "to checkmate". (The related term ''tsumero'' 詰めろ refers to the slightly different concept of "threatmate". See: Hisshi.) ''Tsume shogi'' problems are strictly forced mate problems with constant checks. They assume that the player is in brinkmate and that they will lose unless they can force a mate sequence with a check on every move. The situation simulates real shogi games in which the endgame is essentially a mutual mating race. Note that the concept of stalemate as in western chess does not exist in shogi as it essentially does ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chess Tactics
In chess, a tactic is a sequence of moves that each makes one or more immediate threats ─ that is, a Check (chess), check, a Glossary of chess#material, material threat, a Checkmate, checkmating sequence threat, or the threat of another tactic ─ which culminates in the opponent being unable to respond to all of the threats without conceding an immediate benefit to the opponent. Most often, the immediate benefit takes the form of a material advantage or checkmating attack; however, some tactics are used for defensive purposes and can salvage material that would otherwise be lost, or to induce stalemate in an otherwise lost position. Tactics are usually contrasted with Chess strategy, strategy, whereby the individual moves by themselves don't make indefensible threats, and the cumulative advantage of the moves takes longer to be capitalised on. In rough terms, the dichotomy can be summarised as tactics concerning short-term play and strategy concerning long-term play. Examples of ... [...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 to a pin. A skewer is sometimes described as a "reverse pin"; the difference is that in a skewer, the more valuable piece is the one under direct attack. 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 (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. Skewers can be broken down into two types: ''absolute'' and ''relative''. In an absolute s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pin (chess)
In chess, a pin is a tactic in which a defending piece cannot move out of an attacking piece's line of attack without exposing a more valuable defending piece. Moving the attacking piece to effect the pin is called ''pinning''; the defending piece restricted by the pin is described as ''pinned''. Only a piece that can move any number of squares along a horizontal, vertical, or diagonal line (i.e. a bishop, rook, or queen) can pin. Any piece can be pinned except the king, which is the most valuable piece. The inverse of a pin is a skewer, in which a more valuable piece under direct attack may move to expose a less valuable piece to an attack. Types Absolute pin An ''absolute pin'' is one where the piece shielded by the pinned piece is the king. In this case it is illegal to move the pinned piece out of the line of attack, as that would place one's king in check (see diagram). A piece pinned in this way can still give check or defend another piece from capture by the opposing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
