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Hon'inbō Dōetsu
Hon'inbō Dōetsu (本因坊道悦, 1636–1727) was a Japanese professional go player, who became the third head of the Honinbo house. His surname was Niwa, and he used a Buddhist name Nissho. Biography He was born in Matsuzaka, currently in Mie Prefecture. He was adopted as Hon'inbō heir in 1658. He was promoted to 7 ''dan'' in 1666. His final ranking was as 8 ''dan''. Dōetsu challenged Yasui Sanchi to a long match. In the end 20 games were played, out of a theoretical 60, over seven years starting in 1668. Under the beating-down rules (see ''jubango'') he forced Yasui down from '' sen'' (Black in each game, for a theoretical difference of two levels) to '' sen-ai-sen'' (Black-White-Black). He was also active in ''oshirogo'' from 1660, for 15 years. In 1677 he stepped down as Honinbo head, handing over to Dōsaku. He did however still meet an official requirement to play ''oshirogo''; he was given a personal allowance of 20 ''koku'' of rice.''Go Monthly Review'' 1963/5, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japan
Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea in the south. The Japanese archipelago consists of four major islands—Hokkaido, Honshu, Shikoku, and Kyushu—and List of islands of Japan, thousands of smaller islands, covering . Japan has a population of over 123 million as of 2025, making it the List of countries and dependencies by population, eleventh-most populous country. The capital of Japan and List of cities in Japan, its largest city is Tokyo; the Greater Tokyo Area is the List of largest cities, largest metropolitan area in the world, with more than 37 million inhabitants as of 2024. Japan is divided into 47 Prefectures of Japan, administrative prefectures and List of regions of Japan, eight traditional regions. About three-quarters of Geography of Japan, the countr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sen-ai-sen
Professional Go handicaps were a system developed in Japan, in the Edo period, for handicapping professional players of the game of Go against each other. With the abolition of the Oteai system, which from the 1920s had used some handicap games to determine the Go ranking of professional players, this system has become obsolete. It is now completely superseded by the use of ''komidashi''. Knowledge of it is required to understand the conditions of play in historical Go matches, particularly the jubango that died out around 1960. Pro levels The professional Go ranks have traditionally been divided into nine levels, with shodan or 1 dan being the initial grade for a student player certified as professional (''kishi'' in Japanese). The ranks go up to 9 dan, the whole system being based on old customs from the Chinese Imperial court. (The imperial court had 1 pin as highest and 9 pin as lowest however). To this day there are nine professional dan levels in China and South Korean as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1727 Deaths
Events January–March * January 1 – (December 21, 1726 O.S.) Spain's ambassador to Great Britain demands that the British return Gibraltar after accusing Britain of violating the terms of the 1713 Peace of Utrecht, Treaty of Utrecht. Britain refuses and the Thirteenth Siege of Gibraltar begins on February 22. * January 6 – Martin Spanberg and two other members of the First Kamchatka expedition arrive in Okhotsk, after a journey from Saint Petersburg of almost two years. After the end of winter, the 63-member group, commanded by Vitus Bering, proceeds to the Kamchatka River, to prepare for exploration of the Arctic. * January 9 – The world-famous Charité Hospital is established in Berlin, to be used for research and to help the poor. Prussia's Frederick William I of Prussia, King Frederick William I had ordered the conversion of a 16-year old institution, originally built in anticipation of an epidemic of the bubonic plague. * January 12 – ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1636 Births
Events January–March * January 1 – Anthony van Diemen takes office as Governor-General of the Dutch East Indies (now Indonesia), and will serve until his death in 1645. * January 18 – '' The Duke's Mistress'', the last play by James Shirley, is given its first performance. * February 21 – Al Walid ben Zidan, Sultan of Morocco, is assassinated by French renegades. * February 26 – Nimi a Lukeni a Nzenze a Ntumba is installed as King Alvaro VI of Kongo, in the area now occupied by the African nation of Angola, and rules until his death on February 22, 1641. * March 5 (February 24 Old Style) – King Christian IV of Denmark and Norway gives an order, that all beggars that are able to work must be sent to Brinholmen, to build ships or to work as galley rowers. * March 13 (March 3 Old Style) – A "great charter" to the University of Oxford establishes the Oxford University Press, as the second of the privileged presses in England. * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hon'inbō
Honinbo (or Hon'inbō, 本因坊) is a title used by the head of the Honinbo house or the winner of the Honinbo tournament. Honinbo house The Honinbo house was a school of Go players officially founded in 1612 and discontinued in 1940. The founder was the Buddhist priest Nikkai, and 1612 is the year when Oda Nobunaga started sponsoring the school. The name Honinbo was that of the pavilion on the grounds of the Jakkoji temple in Kyoto where Nikkai lived. When the capital was moved to Tokyo, Nikkai moved along and turned "Honinbo" into a title, calling himself Honinbo Sansa. Heads of the Honinbo house * 1st Honinbo, Sansa (算砂, 1612-1623) * 2nd Honinbo, San'etsu (算悦, 1630-1658) * 3rd Honinbo, Dōetsu (道悦, 1658-1677) * 4th Honinbo, Dōsaku (道策, 1677-1702) ** appointed successor, Dōteki (道的) (died early) ** appointed successor, Sakugen(策元) * 5th Honinbo, Dōchi (道知, 1702-1727) * 6th Honinbo, Chihaku (知伯, 1727-1733) * 7th Honinbo, Shuhaku ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hon'inbō San'etsu
Hon'inbō San'etsu (本因坊算悦, 1611–1658) was a professional Go player, and second head of the Hon'inbō house. Biography San'etsu was the second Hon'inbō. A minor at the time of Hon'inbō Sansa's death, he inherited a difficult situation since he could not receive the official allowance for the house. Sansa had asked Nakamura Dōseki to act as San'etsu's guardian, and through Dōseki's good offices an annual 30 ''koku'' of rice was negotiated.''Go Monthly Review'' 1963/5 p.53 During his minority the position of head of the Hon'inbō house was in abeyance, so that the house notionally did not exist. He played in an international match, giving Peichin Tsuhanoko of the Ryukyu Kingdom a two-stone handicap, when the latter came to Japan with a Ryukyuan embassy in 1634.http://www.gogod.demon.co.uk/NewInGo/Firsts_intl.htm The high point of San'etsu's professional career came in a challenge match against Yasui Sanchi. From 1645 to 1653 they played six games of ''oshirogo'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Go Equipment
Go equipment refers to the board, stones (playing pieces), and bowls for the stones required to play the game of Go (game), Go. The quality and materials used in making Go equipment varies considerably, and the cost varies accordingly from economical to extremely expensive. History The oldest known surviving Go equipment is a board carved from rock that dates from the Han dynasty in China. Other examples of ancient equipment can be found in museums in Japan and Korea. Equipment Board The Go board, called the ''goban'' in Japanese language, Japanese, is the playing surface on which to place the stones. The standard board is marked with a 19×19 grid. Smaller boards include a 13×13 grid and a 9×9 grid used for shorter games that are often used to teach beginners. Some 19×19 boards have a 13×13 grid on the reverse side. 17×17 was used in historical times. Chinese boards are generally square; Japanese and Korean boards are slightly longer than wide, so that they for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Koku
The is a Chinese-based Japanese unit of volume. One koku is equivalent to 10 or approximately , or about of rice. It converts, in turn, to 100 shō and 1,000 gō. One ''gō'' is the traditional volume of a single serving of rice (before cooking), used to this day for the plastic measuring cup that is supplied with commercial Japanese rice cookers. The ''koku'' in Japan was typically used as a dry measure. The amount of rice production measured in ''koku'' was the metric by which the magnitude of a feudal domain ('' han'') was evaluated. A feudal lord was only considered ''daimyō'' class when his domain amounted to at least 10,000 ''koku''. As a rule of thumb, one ''koku'' was considered a sufficient quantity of rice to feed one person for one year. The Chinese equivalent or cognate unit for capacity is the ''shi'' or '' dan'' () also known as ''hu'' (), now approximately 103 litres but historically about . Chinese equivalent The Chinese 石 ''dan'' is equal to 10 ''d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hon'inbō Dōsaku
Hon'inbō Dōsaku (本因坊道策, 1645–1702) was a professional Go player. Biography Dōsaku was one of the greatest Go players in history. He was born in the Iwami Province of Japan and studied Go in the Hon'inbō school, becoming Meijin at a very young age. Dōsaku was the fourth Hon'inbō by the time he was 32, and the fourth Meijin by the time he was 33. He started to learn Go at 7. Dōsaku was so strong by the time he was in his early 20s that even if someone played the first move, he would always win. Rumors were that he was two stones stronger than any other Go player. This was due to his deep thinking and next-level tactics. He laid the foundation for opening strategy in the Golden Period. Becoming Meijin by fiat Only a short time after receiving the Head of the Hon'inbō school he was given the post of Meijin in recognition of his unrivaled strength. On one account, this controversial appointment (which deprived Yasui Sanchi of his official positions) was ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oshirogo
''Oshirogo'' (御城碁 "castle Go") or castle games were official matches of high-level Go played in Japan during the Edo period, usually in the castles of the ''shōgun''. Players were mostly from the four go houses. Matches were played in the ''shōguns presence. With the passage of the years, this became a formality: the players would replay a game that had already been played, and the ''shōgun'' would often be represented by an official, rather than attend himself. The games themselves were, though, bitterly contested, since the castle games had a major effect on the prestige of the four houses. Throughout the Tokugawa shogunate there was an ongoing struggle to take control of the official positions of ''Meijin'' and ''godokoro''. Hundreds of game records of the castle games survive; a large collection was edited by Kensaku Segoe was a professional Go player. (His surname is occasionally given as Segoshi, but that appears to be a misreading, even if attested by furi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sen (go)
Professional Go handicaps were a system developed in Japan, in the Edo period, for handicapping professional players of the game of Go against each other. With the abolition of the Oteai system, which from the 1920s had used some handicap games to determine the Go ranking of professional players, this system has become obsolete. It is now completely superseded by the use of ''komidashi''. Knowledge of it is required to understand the conditions of play in historical Go matches, particularly the jubango that died out around 1960. Pro levels The professional Go ranks have traditionally been divided into nine levels, with shodan or 1 dan being the initial grade for a student player certified as professional (''kishi'' in Japanese). The ranks go up to 9 dan, the whole system being based on old customs from the Chinese Imperial court. (The imperial court had 1 pin as highest and 9 pin as lowest however). To this day there are nine professional dan levels in China and South Korean as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Honinbo Sanetsu
Honinbo (or Hon'inbō, 本因坊) is a title used by the head of the Honinbo house or the winner of the Honinbo tournament. Honinbo house The Honinbo house was a school of Go players officially founded in 1612 and discontinued in 1940. The founder was the Buddhist priest Nikkai, and 1612 is the year when Oda Nobunaga started sponsoring the school. The name Honinbo was that of the pavilion on the grounds of the Jakkoji temple in Kyoto where Nikkai lived. When the capital was moved to Tokyo, Nikkai moved along and turned "Honinbo" into a title, calling himself Honinbo Sansa. Heads of the Honinbo house * 1st Honinbo, Sansa (算砂, 1612-1623) * 2nd Honinbo, San'etsu (算悦, 1630-1658) * 3rd Honinbo, Dōetsu (道悦, 1658-1677) * 4th Honinbo, Dōsaku (道策, 1677-1702) ** appointed successor, Dōteki (道的) (died early) ** appointed successor, Sakugen(策元) * 5th Honinbo, Dōchi (道知, 1702-1727) * 6th Honinbo, Chihaku (知伯, 1727-1733) * 7th Honinbo, Shuhaku ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
