Josen
   HOME
*





Josen
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 It is now completely superseded by the use of ''komidashi''.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]  


picture info

Edo Period
The or is the period between 1603 and 1867 in the history of Japan, when Japan was under the rule of the Tokugawa shogunate and the country's 300 regional '' daimyo''. Emerging from the chaos of the Sengoku period, the Edo period was characterized by economic growth, strict social order, isolationist foreign policies, a stable population, perpetual peace, and popular enjoyment of arts and culture. The period derives its name from Edo (now Tokyo), where on March 24, 1603, the shogunate was officially established by Tokugawa Ieyasu. The period came to an end with the Meiji Restoration and the Boshin War, which restored imperial rule to Japan. Consolidation of the shogunate The Edo period or Tokugawa period is the period between 1603 and 1867 in the history of Japan, when Japan was under the rule of the Tokugawa shogunate and the country's regional '' daimyo''. A revolution took place from the time of the Kamakura shogunate, which existed with the Tennō's court, to the Tok ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


Takagawa Kaku
, also known as , was one of the most successful professional Go players of the twentieth century. Biography Kaku Takagawa won the Honinbō title nine times in a row, from 1952 to 1960, and was subsequently awarded the permanent title of Honorary Honinbo. He then chose Shukaku as his Honinbō name. He is one of the few Honorary Honinbos. He was known for having a healthy rivalry with Sakata Eio. This could be seen as Sakata would constantly beat Takagawa from 1959 to 1966 in the finals of major tournaments. Takagawa's books, translated from their original Japanese, were instrumental in educating Westerners in the ways of Go. He also wrote a series of articles from 1961 through 1977 for the Nihon Ki-in The Nihon Ki-in (), also known as the Japan Go Association, is the main organizational body for Go in Japan, overseeing Japan's professional system and issuing diplomas for amateur dan rankings. It is based in Tokyo. The other major Go associat ... which was the primary En ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


Titleholder System
{{Unreferenced, date=August 2007 The titleholder system is the most common type of structure used in professional tournaments in the game of go and shogi. Overview In practice these events almost always are based in East Asian countries with a professional system: in Japan for go and shogi, and in China, South Korea and Taiwan for go. The system originated from competitions sponsored by Japanese newspapers, and has the effect that major events are spread out over a whole year of preliminaries, with a matchplay final that takes place over a month or two. While this makes tournaments slow-moving and diffuse by the standards of some other mind sports, rather than happening in a single place over a short time span, the system is well entrenched. The sponsoring newspapers can fill a daily column easily throughout the year, while the players can juggle commitments to a number of tournaments and outside interests by asking for scheduling that fits in everything. Each of the major events ha ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Yomiuri Shimbun
The (lit. ''Reading-selling Newspaper'' or ''Selling by Reading Newspaper'') is a Japanese newspaper published in Tokyo, Osaka, Fukuoka, and other major Japanese cities. It is one of the five major newspapers in Japan; the other four are the ''Asahi Shimbun'', the ''Chunichi Shimbun (Tokyo Shimbun)'' the ''Mainichi Shimbun'', and the '' Nihon Keizai Shimbun''. It is headquartered in Otemachi, Chiyoda, Tokyo.' It is a newspaper that represents Tokyo and generally has a conservative orientation. It is one of Japan's leading newspapers, along with the Osaka-based liberal (Third way) Asahi Shimbun and the Nagoya-based Social democratic Chunichi Shimbun. It is published by regional bureaus, all of them subsidiaries of The Yomiuri Shimbun Holdings, Japan's largest media conglomerate by revenue and the second largest media conglomerate by size behind Sony,The Yomiuri Shimbun Holdings is the largest media conglomerate by revenue in Japan, while Sony is Japan's largest media con ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Kifu
A board game record is a game record for a board game. ''Kifu'' (棋譜) is the Japanese term for an abstract strategy game record. In China, people named this kind of record "qipu" (. In Korea, people named this kind of record "Gibo" ({{zh, t=棋譜). In go, board game records are traditionally used to record games on a grid diagram, marking the plays on the points and pieces. Board game record databases can be useful to study board games. Many AI algorithms review a large database of professional games. See also * Go game record * Shogi notation Shogi notation is the set of various abbreviatory notational systems used to describe the piece movements of a shogi game record or the positions of pieces on a shogi board. A game record is called a ''kifu'' in Japanese. Recording moves Wes ... Game databases Shogi theory ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  




Two-stone Handicap
Within most systems and at most levels in the game of Go, a handicap is given to offset the strength difference between players of different ranks. Forms of handicaps In the game of Go, a handicap is given by means of stones and compensation points. In contrast to an even game, in which Black plays first, White plays the first move in a game with handicap (after Black's handicap stones have been placed). Handicap stones The rank difference within a given amateur ranking system is one guide to how many handicap stones should be given to make the game a more equal contest. As a general rule, each rank represents the value of one stone. (In terms of points, one stone is considered to be 13-16 points, but this figure is not constant over levels: the more skillful a player, the greater the usefulness of each stone.) For example, a 3 ''kyu'' player gives a 7 ''kyu'' player four handicap stones to allow for an interesting game with roughly equal challenge for both players. If tradi ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Nigiri (Go)
is a Japanese dish of prepared , usually with some sugar and salt, accompanied by a variety of , such as seafood, often raw, and vegetables. Styles of sushi and its presentation vary widely, but the one key ingredient is "sushi rice," also referred to as , or . The inventor of modern sushi is believed to be Hanaya Yohei, who invented nigiri-zushi, a type of sushi most known today, in which seafood is placed on hand-pressed vinegared rice, around 1824 in the Edo period (1603–1867). It was the fast food of the ''chōnin'' class in the Edo period. Sushi is traditionally made with medium-grain white rice, though it can be prepared with brown rice or short-grain rice. It is very often prepared with seafood, such as squid, eel, yellowtail, salmon, tuna or imitation crab meat. Many types of sushi are vegetarian. It is often served with , wasabi, and soy sauce. Daikon radish or are popular garnishes for the dish. Sushi is sometimes confused with sashimi, a similar dish in ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Go Seigen
Wu Quan (), courtesy name Wu Qingyuan ()His courtesy name was created based on his real name (''Quan'' means "spring, fountain" and ''Qing Yuan'' means "clear and pure source of water"). (June 12, 1914 – November 30, 2014), better known by the Japanese pronunciation of his courtesy name, , was a Chinese-born Japanese master of the game of Go. He is considered by many players to have been the greatest Go player in the 20th century. Biography Born on June 12, 1914, in Minhou County, Fujian Province, southeast China, Go Seigen did not start learning Go until he was nine, a relatively late age for a professional (Honinbo Dosaku first learned go at seven and Honinbo Shusaku before he was six). His father, who had taken go lessons from Honinbo Shuho while studying in Japan, was responsible for introducing him to the game. Go Seigen quickly excelled and soon became known as a Go After days and nights, the shape of his left index finger changed, bending backwards. At that time, p ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


Honinbo Shusai
In the history of Go in Japan, the four Go houses were four major schools of Go instituted, supported, and controlled by the state, at the beginning of the Tokugawa shogunate. (There were also many minor houses.) At roughly the same time shogi was organised into three houses. Here "house" implies an institution run on the recognised lines of the ''iemoto'' system common in all Japanese traditional arts. In particular, the house head had, in three of the four cases, a name handed down: Inoue Inseki, Yasui Senkaku, Hayashi Monnyu. References to these names, therefore, mean to the contemporary head of the house. The four houses were the Honinbo, Hayashi, Inoue, and Yasui. They were originally designed to be on a par with each other, and competed in the official castle games called '' oshirogo''. The houses Hon'inbō The Hon'inbō house (本因家) was easily the strongest school of Go for most of its existence. It was established in 1612 and survived until 1940. Upon the closu ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Go (game)
Go is an abstract strategy board game for two players in which the aim is to surround more territory than the opponent. The game was invented in China more than 2,500 years ago and is believed to be the oldest board game continuously played to the present day. A 2016 survey by the International Go Federation's 75 member nations found that there are over 46 million people worldwide who know how to play Go and over 20 million current players, the majority of whom live in East Asia. The playing pieces are called stones. One player uses the white stones and the other, black. The players take turns placing the stones on the vacant intersections (''points'') of a board. Once placed on the board, stones may not be moved, but stones are removed from the board if the stone (or group of stones) is surrounded by opposing stones on all orthogonally adjacent points, in which case the stone or group is ''captured''. The game proceeds until neither player wishes to make another move. Wh ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Elo Rating System
The Elo rating system is a method for calculating the relative skill levels of players in zero-sum games such as chess. It is named after its creator Arpad Elo, a Hungarian-American physics professor. The Elo system was invented as an improved chess-rating system over the previously used Harkness system, but is also used as a rating system in association football, American football, baseball, basketball, pool, table tennis, and various board games and esports. The difference in the ratings between two players serves as a predictor of the outcome of a match. Two players with equal ratings who play against each other are expected to score an equal number of wins. A player whose rating is 100 points greater than their opponent's is expected to score 64%; if the difference is 200 points, then the expected score for the stronger player is 76%. A player's Elo rating is represented by a number which may change depending on the outcome of rated games played. After every game, the winni ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]