Ishida (shogi)

In shogi, Ishida (石田流 ishida-ryū or 石田流三間飛車 ishida-ryū sankenbisha) is a type of Third File Rook (Ranging Rook) opening.

In contrast to the regular Third File Rook opening, Ishida advances to the middle e rank the seventh file pawn if played by Black (P-7e) or the third file pawn if played by White (P-3e). This allows the player's rook to be move up the 7f square (Black) or the 3d square (White).

Ishida is named after the 17th century shogi master Kengyo Ishida.

Ishida proper (slow Ishida)

Ishida proper uses a particular piece formation not found in other Third File Rook positions. In this structure, an early bishop exchange is prevented. Thus, it is known as a slow game (持久戦 jikyūsen).

This contrasts with Quick Ishida (haya ishida) where the possibility of a bishop exchange remains throughout the opening – a rapid attack game (久戦 kyūsen). When referring specifically to the slow Ishida variant, the term 石田流本組 ishida-ryū hom gumi is used in Japanese, which is translated as Ishida Plenary Formation by Kawasaki (Kitao 2011). Hosking refers to this simply as Ishida while the fast game is called Ishida Quick Attack.

See also

• Quick Ishida
• Third File Rook
• Ranging Rook

Bibliography

• Fairbairn, John (1986). Shogi for beginners (2nd ed.). Ishi Press. ISBN 978-4-8718-720-10. 
• Hosking, Tony (1997). The art of shogi. The Shogi Foundation. ISBN 978-0-95310-890-9. 
• 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. 
• 勝又清和 (2003). 消えた戦法の謎 (文庫版 ed.). 毎日コミュニケーションズ. ISBN 4-8399-1091-X.  - 1995年のものの加筆・文庫版
• 久保利明 (2011). 久保の石田流. 日本将棋連盟. ISBN 978-4-8399-3725-6. 
• 森下卓 (1997). 将棋基本戦法 振り飛車編. 日本将棋連盟. ISBN 4-8197-0334-X. 
• 鈴木大介 (2011). 勝てる石田流. 創元社. ISBN 978-4-422-75133-7. 
• 小倉久史 (2006). 下町流三間飛車 居飛穴攻略の新研究. 毎日コミュニケーションズ. ISBN 4-8399-2052-4. 

External links

• Shogi Opening:
  • 3rd File Rook: Plenary Ishida Style vs Climbing Gold (Not Exchange Bishop Type)
  • 3rd File Rook: Plenary Ishida Style vs Left Mino
• Yet Another Shogi Site: Gote Ishida Style (Countermeasures)