Castle Go - Oshirogo

Japanese: 御城碁 - おしろご

During the Edo period, a go game was held once a year in front of the shogun as a regular event. It was a measure by the shogunate to protect and promote go. In the early days, there were no four Go institutes and few go players, so it was not necessarily held every year. Gradually, it became more of a ritual, and there were cases where the shogun did not attend. As the head of the family system was established and heirs and disciples of the school (outer families) began to serve, the number of players and games increased, and Gojyo shogi began to be held at the same time. Most records are from 1644 or 1645, but the Gojyo Gofu published in 1951 includes three games from the Kan'ei era (24-44) and games from even earlier as games played in front of the shogun. The date of the game, which was not consistent, was set as November 17 during the Kyoho era (1716-36), but there were some changes. From the middle of the period onwards, as games became longer, a custom arose of playing the lower part of the game beforehand at the temple and shrine magistrate's office, concealing the results and then laying them out in the castle (mainly the Kuroshoin). Instead, games of preference were played, and sometimes the game was changed to a uchikake midway and continued at the temple and shrine magistrate's office. The last game was in Bunkyu 1 (1861), and in 1862 only the lower part of the game was played. It naturally disappeared amid the social unrest at the end of the Edo period.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:

江戸時代に将軍の前で年に1度定例的に行われた囲碁対局。幕府の碁の保護奨励策である。初期は棋院四家もなく，碁方 (碁打衆) も少なかったので，必ずしも毎年行われていたわけではない。次第に儀式化し，将軍が出座しない場合も出てきた。家元制度が確立し，跡目や一門の弟子 (外家) が出仕するにいたって対局者，対局数もふえ，御城将棋も同時に行われるようになった。譜は正保1 (1644) 年または同2年から記録されている例が多いが，1951年に出版された『御城碁譜』には寛永年間 (24～44) の3局，さらにそれ以前のものが御前対局として収録されている。不統一だった対局日を享保年間 (1716～36) に 11月 17日と定めたが，多少の変更はあった。中期以降，対局が長くなったため，あらかじめ寺社奉行所などで下打ちをし，結果を伏せておいて御城 (主として黒書院) で並べる風習が生じた。そのかわりに御好み対局が行われるようになり，途中打掛けにし，寺社奉行所で打継ぐこともあった。文久1 (1861) 年を最後とし，同2年は下打ちのみであった。幕末の世情不安のうちに自然消滅した。

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