Sakata Opposing Rook

Shogi opening

Sakata Opposing Rook

☖ pieces in hand: 角

9	8	7	6	5	4	3	2	1
香	桂	銀	金	王		銀	桂	香	1
							飛		2
歩	歩	歩	歩	歩	歩	金	歩	歩	3
						歩			4
							歩		5
		歩							6
歩	歩		歩	歩	歩	歩		歩	7
						銀	飛		8
香	桂	銀	金	玉	金		桂	香	9

☗ pieces in hand: 角

In shogi, Sakata Opposing Rook (阪田流向かい飛車 or 坂田流向かい飛車 sakata-ryū mukai hisha) is an Opposing Rook opening.

It refers to the case in a Double Static Rook situation in which Gote (White) switches energetically to an Opposing Rook variation. The origin of this strategy is dated back to the Edo period, but it was after a famous match that shogi Master Sankichi Sakata (1870-1946) played against Ichitarō Doi in May 1919, that it became popular and the opening started being named after him.

Overview

In a Double Static Rook situation following 1. P-76, P-34, 2. P-26, G-32, 3. P-25, Gote (White) opposes with ...B-33, 4. Bx33+, Gx33, and then by moving the rook along the 2nd. rank. There are strategies for both early fight and slow games, but still the emphasis is on constraining ( osaeru) rather than on exchanging pieces (sabaki) which makes it easy to handle in the center.

While counter-attacking by attacking Black's rook pawn is plain and simple, when in combination with Wrong Diagonal Bishop and others, it carries a big destructive power.

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Bibliography

豊川孝弘『パワーアップ戦法塾』 NHK出版 2004年
豊川孝弘『阪田流向かい飛車戦法』（『将棋世界2010年8月号』付録）日本将棋連盟 2010年
Hosking, Tony (1996). The art of shogi. The Shogi Foundation. ISBN 978-0-95310-890-9.

External links

Shogi (etc) Diary in Japan
- Sakata-Opposing Rook
- Example Game of Sakata-Opposing Rook
Quest of the Lost Systems: Furibisha: Sakata-ryu Mukaibisha
アゲアゲ☆将棋実況 YouTube channel: アナログ棋譜並べ: 渡辺明 vs 佐藤天彦: 阪田流向かい飛車 · professional game example with comments by ex-professional apprentice (in Japanese)
将棋DB２:
- 渡瀬荘次郎 vs. 小林東四郎渡瀬荘次郎 vs Touhakusai Kobayashi game from 1862
- 淡路仁茂 vs 桐山清澄 Hitoshige Awaji vs Kiyozumi Kiriyama game from 1994
Alexei's YouTube channel: Tactical defense: Fujii Souta-Akutsu, 27th Ginga Tournament Block E

Shogi Openings

Static Rook

Right Fourth File Rook
Static Bishop Left Mino
Right King
Snowroof
Sleeve Rook
First File Rook
Reclining Silver
Climbing Silver
Climbing Gold
Ureshino
Extreme Rushing Silver
Duck
Feint Static Rook

Double Static Rook

Fortress	Double Fortress Spearing the Sparrow Morishita System Central Rook Fortress Waki System Akutsu Rapid Attack vs Right Fourth Rook Yonenaga Rapid Attack Ninja Silver Crab Silvers
Double Wing	Floating Rook Retreating Rook Primitive Climbing Silver Tsukada Special Twisting Rook Rook on Pawn No Guard
Bishop Exchange	Reclining Silver (Kimura joseki, G48 R29) Rushing Silver Climbing Silver Tempo Loss Wrong Diagonal
Side Pawn	B-33 Rapid Attack B33 B45 Double Side Pawn P*23 N-33 Rapid Attack K-41 Aono Rx33+

Counter-Ranging Rook

Static Rook Bear-in-the-hole Maruyama Vaccine Iijima Bishop Pullback Straight Line Bear-in-the-hole King's Head Vanguard Pawn Subway Rook Left King Takada System Center Vanguard Pawn Central Rook vs Side Pawn
Rapid Attack	Left S-57 Rapid Attack Yamada joseki Saginomiya joseki Ponpon Knight Spearing the Bird Super High Speed S-37 Three-Pawn Sacrifice

Ranging Rook

Bishop Head Pawn Feint Ranging Rook Twisting Rook Tonari Dokkan Rook
Central	Primitive Central Rook Cheerful Central Rook Silver Horns Bear-in-the-hole Central Rook Edge Bishop Flatfish Central Rook Fortress Central Rook vs Side Pawn
Fourth File	Fujii System Bear-in-the-hole Fourth File Rook King's Head Silver Bishop Exchange Fourth File Rook Leghorn Special Tateishi Yōryū Fourth File Rook
Third File	Bear-in-the-hole Third File Rook Kōyan Manabe Ishida (Quick Ishida, 3–4–3, Fourth-to-Third, R-77) 1...R-32 1.R-78 Demon Slayer New Demon Slayer Tomahawk
Opposing	Sakata American B-33 Direct Ōno
Double Ranging	Opposing vs Third Double Third Double Opposing Opposing vs Fourth Opposing vs Central Double Central Left Bear-in-the-hole Central Rook