In
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'' ...
, Waki System (脇システム ''waki shisutemu'') is a symmetrical
Double Fortress
The Double Fortress (相矢倉 or 相櫓 ''aiyagura'') is a shogi opening in which both players construct Fortress formations.
Double Fortress games are the most common type of Fortress games found at all levels of play.
Historical Fortress
...
(Static Rook)
opening
Opening may refer to:
* Al-Fatiha, "The Opening", the first chapter of the Qur'an
* The Opening (album), live album by Mal Waldron
* Backgammon opening
* Chess opening
* A title sequence or opening credits
* , a term from contract bridge
* , ...
.
It is characterized in part by positioning Black's bishop on the 46 square and White's bishop on the 64 square allowing for a bishop exchange.
The strategy is named after
Kenji Waki.
Development
An early ...P-74 (as opposed to an early ...G-52) is the most common move leading to the standard
24-Move Fortress Set (矢倉24手組) position, which is one of the major branching points of the set of Fortress substrategies.
13. S-37. The Waki System is a silver-37 branch Fortress substrategy.
13. ...B-64. The Waki System form starts with White moving their bishop to 64 temporarily pinning Black's silver to their rook.
14. B-46. In response, Black opposes White's bishop by moving their own bishop to 46.
This positioning allows the bishops to be traded off in order to place them in hand.
14. ..S-73
20. P-96
20. P-15 variation
14. ...B-73 variation
...P-14 variation
...P-94 variation
See also
*
Fortress opening
Fortress (矢倉 or 櫓 ''yagura'') is both a Static Rook opening (矢倉戦法 ''yagura senpō'') and a castle in shogi.
It is usually played in a Double Static Rook opening, which is often a Double Fortress opening. However, it may also occur ...
*
Morishita System
*
Spearing the Sparrow
In shogi, Spearing the Sparrow (雀刺し or スズメ刺し ''suzumezashi'') is one of the substrategies of the Fortress (Static Rook) class of openings. The strategy is basically an edge attack on the first file if played by Black or the ninth f ...
*
Akutsu Rapid Attack Yagura
In shogi, Akutsu Rapid Attack Fortress (阿久津流急戦矢倉 ''akutsu-ryū kyūsen yagura'') is a Double Fortress (Static Rook) opening.
This style of Fortress was named after professional player Chikara Akutsu who has used this strategy ...
*
Central Rook Fortress
*
Right Fourth File Rook#Yagura vs Right Fourth File Rook
*
Static Rook
Static Rook (居飛車 ''ibisha'') openings in shogi typically have the player's rook at its start position, which is the second file (on the 28 square) for Black and the eighth file (on the 82 square) for White.
Explanation
Static Rook is a ...
Bibliography
* 脇謙二『単純明快矢倉・脇システム』
毎日コミュニケーションズ、 1994年、
*
External links
* Shogi Maze
Yagura: Waki System
{{Shogi openings
Shogi openings
Fortress openings