• Source: Fourth File Rook

In shogi, Fourth File Rook (四間飛車 shikenbisha) is a class of Ranging Rook openings in which the rook is initially positioned on the fourth file if played by White or the sixth file if played by Black.




History



The earliest recorded shogi game was a Static Rook vs. Fourth File Rook game from 1607. Black was Sōkei Ōhashi I who played a Right Fourth File Rook position (Static Rook) against Sansa Hon'inbō's Fourth File Rook. Ōhashi won the game.




Fourth File Rook vs Static Rook






= Normal Fourth File Rook

=

The opening starts by the usual 4-move sequence that characterizes Static Rook vs Ranging Rook games as shown in the first adjacent board position. (See: Normal Ranging Rook.)



Fujii System


The Fujii System is a set of Fourth File Rook strategies used against various Static Rook strategies (mainly Left Mino and Bear-in-the-hole Static Rook).



vs Rapid Attack




Tateishi Fourth File Rook


A Fourth File Rook opening created by amateur player Katsuki Tateishi, which awarded him the prestigious Kōzō Masuda Award in 2004.



Bear-in-the-hole Fourth File Rook




King's Head Silver


King's Head Silver (玉頭銀) is a Fourth File Rook opening characterized by the left silver moving to 56, 45, and then to 34. There are versions for both quick fights and slow games.



vs King's Head Vanguard Pawn


Fourth File Rook against Black's King's Head Vanguard Pawn (玉頭位取り gyokutou kuraidori).



vs Iijima Bishop Pullback





= Bishop-Exchange Fourth File Rook

=

The Bishop-Exchange Fourth File is a Fourth File Rook opening in which the player's bishop diagonal remains open allowing for a bishop exchange to occur early in the opening.



Leghorn Special


The Leghorn Special (白色レグホン・スペシャル hakushoku reguhon supesharu or, most commonly, the abbreviation レグスペ regusupe) is an opening in which you build up a Bear-in-the-hole castle while you're simultaneously defending against an opponent's Bear-in-the-hole. It is a Bear-in-the-hole Bishop Exchange Fourth File Rook variation and is also famous as an opening to discourage Black from building of a Bear-in-the-hole. The name is said to have originated in the resemblance of this opening to the behavior of a white leghorn chicken that keeps attacking when surrounded by Bear-in-the-hole.
The leghorn special consists mainly in castling the king in Bear-in-the-hole once the bishops have been exchanged in Fourth File Rook. It requires that the opponent is playing Static Rook, and that you're playing White. Following Black's K-68, White would go for the bishop exchange (Bx88), which leads to Black's Sx88, hence reducing the escape routes of Black's king and interfering with Black's castle formation. So, the Leghorn Special prevents (or at least slows down) Black's Bear-in-the-hole, while White can devote to building its own Bear-in-the-hole without problem.




Fourth File Rook in Double Ranging Rook



Fourth File Rook positions are not often used in Double Ranging Rook games in professional play. When they are used, the positions often transition to Opposing Rook positions.




See also


Left Silver-5g Rapid Attack
Fujii System
Right Fourth File Rook vs Fourth File Rook
Bishop Exchange Fourth File Rook
Tateishi Fourth File Rook
Ranging Rook




Notes






References






Bibliography


Aono, Teruichi (1983). Guide to shogi openings: Unlock the secrets of joseki 将棋定跡のカギ: 和英 定跡問題集. Translated by Fairbairn, John. 山海堂. ISBN 4-381-00598-8.
Fairbairn, John (1979). "The fourth file rook part 1". Shogi (22): 10–13.
Fairbairn, John (1980). "The fourth file rook part 2". Shogi (23): 9–11.
Hosking, Tony (1996). The art of shogi. The Shogi Foundation. ISBN 978-0-95310-890-9.
Kiriyama, Kiyozumi (1980). "The counter fourth-file rook opening (centre-vanguard-pawn)". Shogi (24). Translated by Fairbairn, John: 6–9.
Kitao, Madoka (2011). Joseki at a glance. Translated by Kawasaki, Tomohide. Nekomado. ISBN 978-4-9052-2501-0.
Kitao, Madoka (2013). Sabaki at a glance. Translated by Kawasaki, Tomohide. Nekomado. ISBN 978-4-9052-2510-2.
Ōuchi, Nobuyuki (1978). "Opening series: How to play the anaguma part 1". Shogi (12). Translated by Fairbairn, John: 13–15.
Ōuchi, Nobuyuki (1978). "Opening series: How to play the anaguma part 2". Shogi (13). Translated by Fairbairn, John: 13–15.
Ōuchi, Nobuyuki (1978). "Opening series: How to play the anaguma part 3". Shogi (14). Translated by Fairbairn, John: 12–13.
Ōuchi, Nobuyuki (1978). "Opening series: How to play the anaguma part 4". Shogi (15). Translated by Fairbairn, John: 2.
Yebisu, Miles (2016). Comprehensive shogi guide in English: How to play Japanese chess. Laboratory Publishing.




External links


How to Defend in Shogi: Basic Formation 3: Shikenbisha
YouTube: HIDETCHI's Shogi Openings:
S6-5g Rapid Attack (against 4th-file Mino Defense)
Left S-4f Strategy #1
Left S-4f Strategy #2
Left S-4f Strategy #3
Left S-4f Strategy #4 (P*3f variation)
Left S-4f Strategy #5 (P*3g variation)
Left S-4f Strategy #6 (B-2b variation)
P-4e Rapid Engage #1
P-4e Rapid Engage #2
P-4e Rapid Engage #3
Shogi Shack:
The First Example: Ibisya And Furibishya
Fourth File Ranging Rook
Playing Fourth Rile Rook Against Right Fourth Ranging Rook
Shogi Opening: 4th File Rook vs Akutsu Semi Rapid Attack
Yet Another Shogi Site: Basics of Gote Fourth File Rook

Kata Kunci Pencarian:

• Fourth File Rook
• Yōryū Fourth File Rook
• Tateishi Fourth File Rook
• Right Fourth File Rook
• Bishop Exchange Fourth File Rook
• Shogi opening
• Fortress vs Right Fourth File Rook
• Ranging Rook
• Cozy castle
• Fortress opening