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Go professional

A Go professional is a player of the ancient strategic board game Go who has qualified through rigorous entrance examinations or tournaments administered by major national Go organizations, earning official certification and the right to compete in professional leagues for titles, prizes, and rankings. These organizations include the Nihon Ki-in in , the Hanguk Giwon in , and the Chinese Weiqi Association, with additional systems in , , and elsewhere allowing for international professionals. Professional ranks range from 1-dan () to 9-dan, the highest level, and are distinct from dan ranks despite similar numerical progression; professionals must maintain their status through ongoing competitive performance, teaching, and promotion of the game. Worldwide, professional Go players number in the low thousands, predominantly from , where the system supports full-time careers via tournament winnings, sponsorships, and instructional roles. The professional Go system traces its origins to Japan during the Edo period (1603–1868), when the Tokugawa shogunate patronized four official Go houses—Honinbo, Yasui, , and —that functioned as guilds for elite players, fostering formalized competitions and hereditary expertise. Although Go originated in over 2,500 years ago, Japan's Edo-era structure laid the for modern professionalism, which expanded globally after with the establishment of dedicated women's leagues in 1952 and international qualification pathways by the late .

Overview and History

Definition and Role

A Go professional is a player officially recognized by a major Go organization, such as the Nihon Ki-in in or the Korean Baduk Association, through the awarding of a that certifies elite skill levels attained via rigorous qualification pathways like exams or apprenticeships. This status distinguishes them from amateurs, granting access to exclusive dan ranks from 1-dan to 9-dan, which reflect ongoing achievement and seniority within the community. Professionals fulfill multifaceted roles in the Go ecosystem, primarily teaching amateurs through private lessons, workshops, , and to disseminate strategic knowledge and foster player development. They also compete in prestigious tournaments to vie for titles and prizes, thereby elevating the game's competitive standards, while promoting Go through appearances, event commentary, and public exhibitions that broaden its appeal. Additionally, some contribute to refining game rules or collaborate on , as seen in interactions with systems like that have influenced modern training practices. Economically, Go professionals derive income from diverse streams including tournament winnings, teaching fees, sponsorships from organizations or brands, and endorsements, with teaching often serving as the primary revenue source for many. Top players in , such as those competing in major leagues, can earn substantial annual incomes exceeding $100,000 through combined and appearances, though earnings vary widely by rank and region, with many supplementing via side activities like writing or club management. In , where Go originated over 2,500 years ago, professionals act as custodians of the game's rich traditions, embodying its historical ties to scholars, , and intellectual elites as one of the "" alongside , , and music. Through their teaching and public roles, they preserve cultural values of strategy, discipline, and harmony, ensuring Go's enduring significance in societies like , , and .

Historical Development

The game of Go originated in ancient approximately 3,000–4,000 years ago, where it was played by court officials and nobility as a strategic pursuit associated with Confucian ideals of and . Early references, such as in the historical text from circa 548 BCE, describe Go as a favored activity among scholars and rulers, laying the groundwork for skilled players who served in advisory roles at . This patronage system marked the nascent form of professional play, with players gaining status through demonstrations of expertise rather than formal titles. During Japan's Edo period (1603–1868), Go evolved into a structured profession under the Tokugawa shogunate, which sponsored four official Go houses—Hon'inbō, Yasui, Inoue, and Hayashi—as guilds (iemoto) receiving annual stipends to train players and host matches. The Hon'inbō house, founded by Hon'inbō Sansa in the early 17th century, emerged as the preeminent institution, overseeing national tournaments and player rankings, which formalized Go as a hereditary vocation supported by government patronage. This guild system persisted until the Meiji Restoration in 1868, when shogunal support ended, leading to the decline of the houses and a transitional phase for players. The modern professional Go era began in Japan with the founding of the Nihon Ki-in in 1924, established to unify fragmented player groups and standardize competitions following the collapse of the traditional houses. In , the Hanguk Kiwon (Korea Baduk ) was formed in 1945 as the Hanseong Kiwon, reorganizing in 1955 to administer professional ranks and tournaments amid post-colonial recovery. China followed with the Chinese Weiqi in 1962, integrating Go into national sports frameworks and initiating professional dan ranks in 1973. These institutions introduced standardized professional qualification exams in the mid-20th century, replacing models with merit-based assessments to ensure consistent skill evaluation across regions. Post-World War II, professional systems expanded beyond , with establishing its framework in 1979 through the Chinese Taipei Weiqi Association, fostering local talent amid cultural revival. The global spread accelerated in the 1990s–2000s via immigration of players and online platforms, enabling non-Asian amateurs to access training and compete internationally. Key milestones included the establishment of dedicated women's leagues in in 1952, providing pathways for female players to achieve professional status and titles, gradually challenging gender barriers in a male-dominated field. The 2016 debut of , developed by DeepMind, profoundly influenced professional Go by defeating top players like , prompting widespread adoption of in training to analyze positions and refine strategies. This event spurred international collaborations, such as the 2017 Future of Go Summit in , where professionals from multiple nations paired with to explore innovative tactics, elevating global standards and fostering cross-cultural exchanges. By the 2020s, non-Asian professionals had grown notably, with systems in (since 2011) and (since 2014) producing figures like those in the European Go Federation, reflecting broader accessibility and diversity in the profession.

Qualification Processes

East Asian Pathways

In East Asia, the pathways to becoming a Go player are highly competitive and structured, primarily through apprentice programs and rigorous exams administered by national organizations. These systems emphasize early and intensive , with candidates typically beginning serious study between ages 10 and 12 at specialized academies or institutes. Success rates across these pathways remain under 10%, reflecting the intense selection process designed to identify only the most exceptional talents. Japan's qualification process begins with the insei apprentice program, overseen by the or , where aspiring players receive structured training and access to professional guidance. Insei candidates pay monthly fees and must submit recent game records for evaluation by instructors, gaining privileges such as discounted tournaments and exemptions from certain exam preliminaries. Most insei lose official status by age 18 for males or 20 for females but can continue as external participants in qualification events. The pro exam, held twice annually, consists of a preliminary round followed by a final tournament round, where candidates compete and top performers qualify as professionals; qualifiers are generally 23 or younger, with no age limit for foreigners. The selects around 6 qualifiers per year through regional tournaments, while special provisions exist for females and elite recommendations since 2019. In , the Hanguk Kiwon (Korean Baduk Association) administers the pro exam to candidates who have attained at least a 5-dan , often developed through full-time immersion at baduk academies starting in childhood. These academies provide rigorous daily , fostering the and depth needed for professional-level play. The exam format features paired matches with strict time controls, testing strategic decision-making under pressure in a multi-stage tournament that includes preliminaries and finals. Emphasis is placed on comprehensive skills, with successful candidates integrating early academy experiences that build foundational strength from a young age. China's Zhongguo Qiyuan manages qualification through national youth programs and a demanding exam, integrating state-sponsored camps that nurture from early adolescence. Candidates advance via youth tournaments, where top performers (e.g., under-18 players ranking in the top 56 overall and top 32 in age groups) qualify for the finals. The exam assesses mid-game reading, , and overall proficiency through a series of matches held annually, such as the 2025 event in involving 623 top amateurs across categories. For adults, success rates are particularly low, with only 5.3% qualifying in the men's group (7 of 132) and 4.8% in the women's (2 of 42). These pathways prioritize players who excel in state-backed camps emphasizing tactical precision. Across these East Asian systems, multi-stage selection processes—preliminaries, , and targeted evaluations—ensure only a fraction of applicants succeed, often fewer than 10 per country annually despite thousands training rigorously. Post-2010s developments, particularly following AlphaGo's victory, have prompted adjustments, with increased focus on AI-influenced opening theory in training and exams to adapt to superhuman computational insights that emphasize novel strategic patterns over traditional joseki. players now incorporate tools for , enhancing performance in openings and overall , as evidenced by improved win rates and stylistic shifts in tournament play.

Western and Other Pathways

In , the qualification pathway for professional status is managed by the European Go Federation (EGF) through an annual European Pro Qualification tournament. Eligibility requires candidates to hold citizenship in an EGF member country for at least 10 years as of January 1 and to be members of a national Go federation, with no upper age limit imposed. Up to 16 candidates are selected each year, including the top four from the European Go Championship, one from the top 10 of the World Amateur Go Championship representing , one wildcard from the Czech-European Go Academy, two EGF wildcards, and eight based on high rankings in the European Go Database (EGD) from the previous October to January period. The tournament employs a modified double-elimination format over six rounds, awarding professional status to the first player reaching four wins and the second to five wins (or one player via a three-round double knockout followed by three single knockouts if only one spot is available). This process emphasizes tournament performance over standardized exams, contrasting with the more rigid, youth-oriented Asian models. In , the North American Go Federation (NAGF), formed in 2020, oversees professional qualification via an annual Pro Qualification Tournament for top amateurs from the and . The event invites around 12 players based on recent achievements in major opens, such as the North American Go Championship, and national ratings. The multi-stage competition, often held over five to six days, determines one or more new professionals through knockout and formats; for instance, the 2025 tournament occurred August 17-22 at the National Go Center in , where Guanyu Song emerged undefeated to become the newest NAGF professional. Sponsorships from entities like the Ing Foundation and the American Go Association support training and travel, facilitating pathways to EGF recognition for exceptional performers. NAGF professionals gain global standing, competing in international events like the Transatlantic Professional Go Team Championship. Pathways in other regions, such as and , generally affiliate with the EGF or Asian organizations due to smaller local structures. In , the Australian Go Association promotes competitive play, but professional aspirations rely on strong results in international tournaments like the World Amateur Go Championship or EGF qualifiers, often supplemented by mentorship from visiting pros. African players, primarily from via the South African Go Association, pursue status through international exposure and IGF-supported events, with limited local infrastructure emphasizing mentorship programs over dedicated exams. These routes highlight performance in global opens rather than regional systems. Distinct from East Asian models, and other pathways feature no strict age caps—allowing entry for players of any age—prioritizing sustained high-level results and lifetime contributions over prodigy-focused entry exams, while presenting lower initial barriers but constrained full-time career prospects due to modest prize funds and player pools. Since the , these systems have expanded with online platforms enabling remote training and qualifiers, leading to a growing cadre of professionals; by 2025, the EGF's eighth qualification tournament produced its tenth pro, alongside NAGF's ongoing additions, resulting in dozens of Western-origin professionals recognized worldwide.

Ranking and Titles

Professional Dan System

The professional dan system in Go establishes a hierarchy of ranks from 1-dan (the entry level for newly qualified professionals) to 9-dan (the pinnacle, often honorary). Upon passing qualification exams or tournaments administered by major associations, entrants are assigned 1-dan status, marking their entry into the professional ranks. Progression through the system emphasizes sustained competitive success, generally requiring players to accumulate a specified number of wins in official games at their current level, though exact thresholds vary by organization. This structure incentivizes consistent performance in domestic and international tournaments while distinguishing professionals from amateurs through rigorous, merit-based advancement. In , the Nihon Ki-in oversees promotions via a win-based ladder, where players must accumulate a specified number of victories against stronger opponents or rank highly in prize money earnings within their dan group. For instance, a 1-dan professional advances to 2-dan after 30 wins, with requirements escalating to 50 wins to reach 4-dan and 90 wins to reach 6-dan; alternatively, leading prize money rankings among peers in the same rank can expedite promotion. Notable achievements, such as winning major titles, allow for accelerated jumps, like elevating a 1-dan directly to 4-dan. The Baduk Association employs a points-based mechanism, accumulating scores from league participation and tournament results to qualify for dan upgrades, as seen in recent promotions within professional leagues. In , the Chinese Weiqi Association links promotions to excellence in national competitions and selection for representative teams, using a specialized scoring system outlined in their weiqi rules for evaluating performance standards. The 9-dan rank represents lifetime accomplishment rather than current playing strength, conferred for enduring contributions to the game, such as multiple title victories or instructional impact. It is not attainable through standard win requirements alone but via special committee review. The rank's prestige is illustrated by the number of high-level players globally. Demotion within the dan system is exceedingly uncommon, limited primarily to cases of extended inactivity (e.g., failure to compete for several years) or breaches of ethical conduct, such as match-fixing scandals; most associations do not impose formal rank reductions for poor performance, preserving the lifetime nature of earned dans. Efforts toward global standardization include international events like the Ing Cup and World Open Go Championship, which exclusively invite professionals and uniformly recognize dan ranks from East Asian bodies such as the Nihon Ki-in, Korea Baduk Association, and Chinese Weiqi Association, ensuring seamless eligibility without regional discrepancies.

Major Titles and Tournaments

In professional Go, major titles and tournaments represent the pinnacle of competition, where elite players vie for prestige, substantial prizes, and opportunities for rank advancement. These events are typically organized by national associations such as Japan's Nihon Ki-in, Korea's Hanguk Kiwon, and China's Zhongguo Qiyuan, with international tournaments fostering global rivalry among professionals from all regions. Titles are defended annually or biennially through challenger systems, emphasizing strategic depth over many games, and winners often gain significant recognition within the dan ranking structure. Japan's major titles, administered primarily by the Nihon Ki-in and Kansai Ki-in, include the Honinbo, established in the as the name of a prominent Go house that trained top players for the shogunate, making it the oldest continuously recognized title in professional Go. The Honinbo tournament follows an annual cycle where a challenger qualifies through preliminary leagues and faces the defending champion in a best-of-seven match series, with the winner required to defend the title the following year. Similarly, the Kisei and Meijin titles operate on annual challenger formats, with the Kisei (meaning "Kingly Sage") sponsored by the newspaper and contested in a best-of-seven final, while the Meijin (meaning "Expert") is backed by the and uses a comparable structure to determine the titleholder through intense defensive matches. These Japanese titles underscore a tradition of prolonged, high-stakes series that test endurance and preparation, contributing to promotions in the professional system for dominant performers. In , the Hanguk Kiwon oversees key titles like the Myeongin, equivalent to Japan's Meijin and meaning "Brilliant ," which features a double-elimination preliminary format leading to a best-of-five final match sponsored by the SG Group and co-hosted with the Hankook Ilbo newspaper. These events highlight rapid decision-making in time-constrained settings, distinguishing them from slower Japanese counterparts while still awarding significant prestige and prize money, often around 30 million won for winners. China's professional scene, managed by the Chinese Weiqi Association, features titles such as the Wangyi Cup, supported by , complements this by focusing on elite Chinese professionals in a challenger-based annual event, while broader integration occurs through international tournaments like the biennial Ing Cup, open exclusively to professionals worldwide and featuring preliminary rounds leading to a best-of-five final. These Chinese titles emphasize global outreach, with the Ing Cup particularly notable for its role in crowning world champions from diverse nations. The 10th Ing Cup in 2024 was won by Ichiriki Ryo of . Prominent international tournaments include the and , both annual events open to top professionals globally. The , sponsored by , uses a knockout preliminary with a best-of-five final and offers a winner's prize of 300 million (approximately $220,000 USD) as of 2025. The , backed by , follows a similar 32-player structure culminating in a best-of-three final, with prizes reaching 300 million won for the champion in 2025, exceeding $200,000 USD and underscoring its status as a premier global competition. The Ing Cup stands out with its quadrennial schedule and a top prize of $400,000 USD, attracting the world's elite in a format that includes qualifiers and a best-of-five title match. Common formats across these major titles involve best-of-five or best-of-seven series for to ensure decisive outcomes, with preliminary rounds using single-elimination or league play to select challengers. Time controls typically allot 2 to 3 hours of main thinking time per player, followed by byoyomi overtime—often five periods of 60 seconds each—allowing additional moves under strict time pressure to prevent stalling. Victories in these tournaments play a key role in rank promotions, as accumulated and title wins factor into advancements within national systems.

Pro-Am Distinctions

Rank Equivalencies and Differences

In the game of Go, professional dan ranks are not directly comparable to dan ranks due to differences in standards and playing contexts, but approximate equivalencies can be drawn based on performance in mixed events and rating systems. A 1-dan is roughly equivalent to an 7-dan in overall strength, while a 5-dan approximates the peak of 8-dan capability, though ranks conventionally cap at 7-dan. These equivalencies are supported by win rates in mixed tournaments, where professionals typically outperform top amateurs, reflecting the rigorous selection process for pros. Key differences between and players extend beyond raw strength to and skill depth. Professionals commit full-time to Go, enabling routine reading depths of 20-30 moves ahead during games, a level of tactical foresight honed through intensive daily and competition. In contrast, amateurs often juggle Go with other careers or , constraining their time and limiting reading depth to 10-15 moves in complex positions, which contributes to gaps in precision and opening . Professional status confers distinct perks that underscore structural gaps with amateurs. Pros gain access to exclusive leagues like the or , along with stipends and sponsorships from organizations such as the Korean Baduk Association, providing financial stability not available to amateurs. Amateurs may participate in open challenges against pros but seldom capture major titles, as evidenced by rare upsets in events like the . Overlaps exist in non-competitive roles, where high-level amateurs (e.g., 7-dan) frequently serve as instructors or commentators at clubs and online platforms, sharing expertise without the formal recognition of pros. However, they lack voting rights in professional organizations, such as electing titles in the Nihon Ki-in. Rating metrics from systems like the European Go Database (EGD) GoR and GoRatings.org further illustrate these distinctions. A professional 1-dan typically holds a GoR or WHR Elo rating of 2900 or higher, compared to an amateur 7-dan around 2500-2700. This 200-400 point spread aligns with the observed performance disparities and emphasizes the professional threshold's demands.

Overlaps and Exceptions

In Go, dual status cases occur when players transition from prominent amateur careers to professional ranks, often after years of competitive success in open tournaments. A notable example is Michael Redmond, who began playing Go at age 7 in the United States, achieved strong amateur results, moved to at 13 to train intensively, entered the insei system in 1977, and qualified as a professional 1-dan with the Nihon Ki-in in 1981; he later became the first Western player to reach 9-dan in 2000. Such pathways highlight how exceptional amateur performance can lead to without immediate overlap in status. Exceptions to standard professional status include honorary recognitions for non-competitive contributors and the handling of retired players. For instance, the Baduk Association awarded the AI program an honorary 9- in 2016 for its groundbreaking role in advancing Go analysis and popularity, despite lacking human competition. Retired professionals typically retain their dan titles as lifetime honors. Overlaps in play arise in mixed professional-amateur events, where top s encounter pros under specific formats. The World Amateur Go Championship remains strictly for non-professionals, but select international tournaments, such as certain North American qualifiers, permit both professionals and s to compete, fostering direct matchups for development and promotion. Additionally, professionals occasionally join amateur leagues or exhibitions for publicity and teaching purposes, such as simultaneous games at congresses, though formal rules generally bar active pros from pure amateur divisions to maintain competitive integrity. Controversies surrounding pro-am boundaries are infrequent but include debates over "semi-professional" labels in Western contexts, where players with partial professional affiliations or hybrid teaching-competition roles challenge clear demarcations; these arise particularly in and , where fewer full-time pros exist compared to . By 2025, modern trends involving tools like and Leela Zero are blurring traditional pro-am lines, as open-source engines enable high-level amateurs to access for , achieving simulated win rates against pros and narrowing gaps through personalized study. These tools democratize advanced tactics, allowing dedicated amateurs to compete more effectively in mixed events, though professionals still dominate due to experience and intuition beyond outputs.

Regional Systems

Asian Organizations

The Nihon Ki-in, established in July 1924 following the Great Kanto Earthquake, serves as the primary governing body for professional Go in Japan, headquartered in . It manages the professional dan system, including recruitment through the insei program, where young players under 23 (with exceptions for foreigners) train intensively and compete in annual qualification tournaments to become professionals. The organization supports over 400 affiliated professionals through operations such as hosting major domestic titles like the Honinbo and providing structured career development, including monthly stipends starting at approximately ¥200,000 for mid-dan players. The Kansai Ki-in, founded in September 1950 as an independent entity after splitting from the Nihon Ki-in's Kansai branch amid disputes over title rights, operates as a rival professional body focused on the Kansai region in western Japan. With around 130 active professionals, it emphasizes regional talent cultivation through its own insei-like training and hosts titles such as the Gosei, while collaborating with the Nihon Ki-in under the umbrella Japan Go Federation for joint events like international team competitions. In , the Hanguk Kiwon (Korea Baduk Association), founded in 1955, governs professional Go with a strong emphasis on competitive leagues like the Korea Baduk League and national team selections for international events. It invests heavily in youth development, conducting annual professional qualification exams that attract hundreds of candidates, and maintains an annual budget exceeding $10 million to support operations, including over 300 professionals and programs fostering global promotion of baduk. The Zhongguo Qiyuan (Chinese Weiqi Association), established in 1961 under government oversight as a national sports body, backs over 300 professionals and prioritizes international competitiveness through state-funded initiatives, including integration of to enhance and in weiqi. It oversees domestic leagues and youth academies, contributing to China's dominance in global titles since the 1980s. Collaborative efforts among these organizations are facilitated by the Asian Go Federation (AGF), which coordinates cross-border events such as the West and Central Asian GO Championships and mind sports seminars to promote weiqi across Asia. Additionally, the Nihon Ki-in, Hanguk Kiwon, and Zhongguo Qiyuan jointly host the Asian TV Cup, an annual knockout tournament featuring top players from , , and to foster regional exchange.

European and Global Systems

The European Go Federation (EGF), which established its professional certification system in 2014, oversees the certification of professional Go players in through a structured process designed to foster competitive growth and international competitiveness. Aspiring professionals must qualify via the annual European Pro tournament, a multi-stage event that selects candidates based on performance in preliminary leagues and finals, often culminating in events like the Lanke Cup. Once certified, professionals advance ranks through a point-based system earned by competing against peers in major such as the European Professional Championship and the , where victories accumulate points toward promotion. By 2025, the EGF has certified approximately 10 professionals, with the 8th event determining the 10th member. The EGF provides substantial support to its professionals, including automatic qualification for high-stakes events like the , which offers significant prize money and exposure. Training opportunities are enhanced through partnerships such as the CEGO Academic Programme, a six-month residency in for skill development, and the EGF Academy, which offers coaching and resources. Additionally, the federation facilitates grants and travel funding to enable participation in international competitions, addressing logistical barriers in a region with dispersed player bases. This support structure, backed by sponsors like CEGO, aims to elevate European professionals to parity with Asian counterparts. Extending beyond Europe, professional recognition in the Americas is managed by the North American Go Federation (NAGF), which inherited the professional system from the American Go Association in 2021 and maintains ties through the (IGF) for global coordination. The NAGF certifies professionals via its own qualification tournaments, resulting in a roster of 10 players by 2025, focusing on regional championships and international qualifiers. In contrast, the Australian Go Association operates in a sparse professional scene with no dedicated system, relying on affiliations with the IGF and occasional participation in EGF-affiliated events, though no Australian players hold Western professional status as of 2025. The (IGF), founded in 1982, plays a pivotal role in standardizing professional status across regions by coordinating 79 member associations, including the EGF and NAGF, to ensure seamless participation in world-level events such as the Ing Cup and . This framework facilitates cross-recognition of professional credentials, allowing and North American pros to compete alongside Asian players without status disputes, while the IGF resolves any jurisdictional issues through its governance structure. For instance, Asian professionals can join leagues under IGF guidelines, promoting inclusivity in hybrid events. Western professional Go faces inherent challenges, including a predominance of part-time players due to limited full-time opportunities outside , with most and North American pros supplementing income through teaching and sponsorships. Reliance on external funding is acute, as seen in EGF initiatives dependent on corporate backers like CEGO, amid broader sponsorship constraints in niche mind sports. has accelerated post-2020 via platforms, enabling tournaments and matchmaking that have boosted participation and qualification pipelines in regions with small physical communities. Notable Western professionals certified by the EGF and NAGF include:
PlayerFederationRankNotable Achievement
Ilya ShikshinEGF (RU)4pHighest-ranked European professional
Ali JabarinEGF ()3p Champion (2018)
Pavol LisýEGF ()2pFirst EGF-certified professional (2014)
Ryan LiNAGF ()4pMultiple North American titles
Michael ChenNAGF ()2pPro Qualification winner (2023)
These players represent the emerging talent in non-Asian systems, contributing to events like the .

References

  1. [1]
    About Insei
    The insei are youth that are studying to become professionals in Japan. The Go insei who qualify in a yearly tournament become professional players.
  2. [2]
    Ranking System - Irish Go Association
    Finally, there is the professional system. The professional ranks begin at “1 dan pro” and continue to the highest rank of 9 dan pro. These ranks can only be ...
  3. [3]
    2025 Professionals - American Go Association
    Antti Tormanen, Professional 1 dan - Nihon Ki-in, Japan. Antti Tormanen is the only Finnish professional Go player. He was born in 1989 in Oulu, Finland, and ...
  4. [4]
    Breaking the board: the rise of female Go players in Korea - Nature
    Oct 5, 2024 · We identified 2379 global professional Go players during this period, categorized by nationality as follows: Korea had 456 players, China had ...
  5. [5]
    [PDF] PGD: A Large-scale Professional Go Dataset for Data-driven Analytics
    Although Go originated in China, the professional Go system first appeared in Japan. During the Edo period, Go became a popular game in Japan and was financed ...
  6. [6]
    Professional at Sensei's Library
    Sep 19, 2025 · A professional (abbr: pro) is a go player who has received a professional diploma from one of the professional go associations.Missing: worldwide | Show results with:worldwide<|control11|><|separator|>
  7. [7]
    How AI-Based Training Affected the Performance of Professional Go ...
    Apr 29, 2022 · We interviewed and surveyed professional Go players and found that AI has been actively introduced into the Go training process since the advent of AlphaGo.
  8. [8]
    [PDF] My title - British Go Association
    follow my dream of making a living as a professional Go player. 2019 was one of my most successful years, and my total earnings from tournaments were more ...<|separator|>
  9. [9]
    The Game of Go: Ancient Applications and Contemporary ...
    Jun 6, 2016 · Meanwhile, Go is no less challenging for its players, and besides its psychological complexity, it maintains a rich cultural influence in China ...
  10. [10]
    A Brief History of Go | British Go Association
    May 5, 2020 · Go likely originated in China 3,000-4,000 years ago, flourished in Japan, and reached Europe in 1880. It was known in China by 500 BC.
  11. [11]
    Chapter 2: The System of Go - Kaleidoscope of Books
    In the Edo Period, however, some people started to make a living by playing Go. In the Edo period, four schools of Go, called iemoto, received a salary from the ...Iemotos Of Go · End Of The Iemoto System · 7) Igo Tokyuroku...
  12. [12]
    Japanese History - All About Go
    Japanese Go has a very different history from China. It was very popular in the late 16th century and gained much government support.
  13. [13]
    Go, Wei Chi - Online Guide. History and Where to Buy
    In 1924, the first Go organisation, the Nihon Kiin, was created in Japan under the influence of Baron Okura and managed to recruit the last of the great ...Missing: founding strike
  14. [14]
    H - KOREA BADUK ASSOCIATION
    The Korean Baduk Association. Hankuk Kiwon was founded in 1955. It administers all the Go playing communities in Korea, organizes all types of Go events ...Missing: history | Show results with:history
  15. [15]
    Chinese Go Association - Sensei's Library
    Dec 19, 2022 · The Chinese Go Association is the official, professional go organization in China, founded in 1962, and is a branch of the Zhongguo Qiyuan.
  16. [16]
    History of Go – IGF - International GO Federation
    Go was invented in China over 3000 years ago, spread to Japan, developed in the Edo period, and spread to Europe and America in the Meiji period. The IGF was ...
  17. [17]
  18. [18]
    Highlights of Women Go Players - Go Magic
    Mar 9, 2024 · Sumire Nakamura became the youngest ever professional Go player in Japan on April 1, 2019 Embracing challenges: Sumire's strategic move to the ...Choi Jeong 9P · Joanne Missingham 7P · Sumire Nakamura 3P
  19. [19]
    How AI-Based Training Affected the Performance of Professional Go ...
    Apr 29, 2022 · We interviewed and surveyed professional Go players and found that AI has been actively introduced into the Go training process since the advent of AlphaGo.
  20. [20]
    Exploring the mysteries of Go with AlphaGo and China's top players
    Apr 10, 2017 · The summit will feature a variety of game formats involving AlphaGo and top Chinese players, specifically designed to explore the mysteries of the game ...
  21. [21]
    Nihon Ki-in Professional Examination at Sensei's Library
    Sep 10, 2025 · Five players per year qualify through examination tournaments as follows: Tokyo Main Branch: one qualifies from the summer examination ...
  22. [22]
    Insei at Sensei's Library
    ### Summary of Japan's Insei Program for Go Professionals
  23. [23]
    NihonKi-in_GoHomePage
    We carry out Go workshop in Asakusa for foreign visitors and foreign residents. You can learn Go by professional Go players directly, and guidance are ...
  24. [24]
  25. [25]
    Hankuk Kiwon at Sensei's Library
    Apr 23, 2020 · It was founded on January 28th, 1954. Recently, the Hankuk Kiwon started a promotion campaign to spread baduk beyond the Korean borders.
  26. [26]
    Chinese Weiqi Association opens the pro qualification tournament to ...
    The Chinese Weiqi Association (CWA) invites international participants to take part in the 2025 weiqi pro qualification tournament, held in Hangzhou, China, ...Missing: Qiyuan exam youth programs
  27. [27]
    2025 National Go Qualification Tournament Regulations
    May 10, 2025 · Junior Boys: 14 players awarded 1-dan pro · Junior Girls: 5 players awarded 1-dan pro · Junior Talent Spot: · Adult Men: · Adult Women:Missing: Qiyuan youth programs
  28. [28]
    Opening strategies in the game of go from feudalism to superhuman AI
    Surprisingly, the influence of AI has produced only a modest, short-lived disruption in the distribution of opening moves, suggesting convergence between humans ...
  29. [29]
    None
    ### Summary of EGF Professional Qualification Process
  30. [30]
    North American Go Federation
    To establish and maintain professional promotion and ranking systems; To organize pro qualification events; To organize North American Championships; To support ...
  31. [31]
    2025 NAGF Pro Qualification Tournament set for August 17-22
    Mar 15, 2025 · The North American Go Federation (NAGF) will hold the 2025 Pro Qualification Tournament from August 17 to 22, 2025 at the National Go Center (NGC).
  32. [32]
    Pro Qualification - NEWS – North American Go Federation
    The North American Go Federation (NAGF) will hold the 2024 Pro Qualification Tournament at College André-Grasset, Montreal, Canada from June 16 to 21, 2024.
  33. [33]
    A.G.A. Inc. - Australian Go Association Inc.
    The AGA is the National Association of Go players in Australia. Our aim is to promote the game of Go, help players improve and provide a communications channel.
  34. [34]
    Lanke Cup European Pro Qualification 2025
    In the EGF Professional Go System Constitution you find all the details about the rights and duties of the new European go professionals. Number of participants ...
  35. [35]
    The Seven Crowns: Japan's Most Prestigious Go Titles! - Go Magic
    Jun 6, 2024 · In this article I will be focusing strictly on the 7 major tournaments in Japan that are organized by the Nihon Ki-in and Kansai Ki-in.
  36. [36]
    Honinbo in Go
    Nikkai, later known as Honinbo Sansa, was appointed the official Go instructor to the shogunate, solidifying the school's prominence.
  37. [37]
  38. [38]
    Nihon Ki-in new promotion system - Sensei's Library
    Aug 29, 2025 · Promotion by money ranking: awarded to three players of 4 dan or lower each year. [edit]. See Also. Nihon Ki-in Professional Examination. Nihon ...
  39. [39]
    KOREA BADUK ASSOCIATION
    In 1982, won Wang-wi, Guk-su, Ki-wang, Guk-ki, Pae-wang, Chae-go-wi, KBS, Jae-wang titles. promoted to 9 Dan Pro(first in Korea) at the age of 29 in 1982. In ...
  40. [40]
    Park Junghwan: Mastery is the Endgame - Go Magic
    Mar 11, 2025 · In 2006, at the incredible age of 13, Park Junghwan was officially certified by the Korean Hanguk Kiwon Association as a professional 1-dan, one ...
  41. [41]
    Obsolete Titles at Sensei's Library
    Oct 9, 2025 · The following professional tournaments were at one time contested, but are now obsolete. In each category, tournaments are listed in ...
  42. [42]
    1st Tianfu Cup - CWI
    The Tianfu Cup (天府杯世界囲碁プロ選手権戦, Tianfu Cup World Professional Go Championship) was held only once, in 2018, in China, under Chinese rules.
  43. [43]
    European pros at the 1st Tianfu Cup World Professional Weiqi ...
    Sep 27, 2018 · The Tianfu Cup World Professional Weiqi Championship is a new competition in the go world. Its 1st session was held from the 20th to the 27th ...Missing: Association Wangyi
  44. [44]
    Ing Cup at Sensei's Library
    The Ing Cup was the second world go championship, starting in August 1988, a few months after the 1st Fujitsu Cup. It has been held regularly every 4 years.
  45. [45]
    30th LG Cup - Announcements - Online Go Forum
    May 19, 2025 · The prize money is 300 million Korean won for the winner, 100 million Korean won for the runner-up, 24 million Korean won for the semifinalists, ...Missing: international Samsung
  46. [46]
    Will China tie Korea in Baduk titles next month?
    Oct 12, 2025 · The 30th 2025 Samsung Fire & Marine Insurance Cup World Baduk Masters will begin on Nov. 8, launching a ten-day 32-player knockout stage.
  47. [47]
    Major Tournaments and Championships | American Go Association
    The Ing Cup is a quadrennial Go championship that started in 1988. Ing Cup offers $400,000 USD prize money for the Champion. It's sponsored by the Ing Chang ...
  48. [48]
    Time Control | Encyclopedia MDPI
    Oct 21, 2022 · In professional Go games and many amateur tournaments, a player has several byo-yomi periods, for example five periods of one minute each.
  49. [49]
    Professional tournaments at Sensei's Library
    Oct 9, 2025 · Ing Cup US$400,000 (The biggest winning money) · LG Cup ₩250,000,000 (Big Title) · Samsung Cup ₩300,000,000 (Big Title) · Chunlan Cup US$150,000 ( ...
  50. [50]
    Frequently Asked Questions about Go - British Go Association
    Oct 20, 2017 · How many Go players are there in the world? About 60,000,000. Most of these are in Korea, China and Japan.
  51. [51]
    EGF ratings system | E.G.D. - European Go Database
    The rating system was adopted by Czech Go Association at the beginning of 1998. Originally it was designed to serve only the needs of Czech go community.
  52. [52]
    Amateurs versus Professionals at Sensei's Library
    May 15, 2015 · With 0,9 (18/20) wins per player, 54,5% (18/33) winning rate and 25% (5/20) qualification rate they played (slightly) better than the ...
  53. [53]
    How far can pros read? : r/baduk - Reddit
    Dec 7, 2017 · From move 122 to move 151. That's how far the pro commentators expected Tang Weixing to have read during those 15 minutes.To High Dans: How deep is your reading and how crucial is ... - RedditHow strong are amateur 9d compared to average pros? : r/badukMore results from www.reddit.com
  54. [54]
    Go Ranks & Ratings: Kyu, Dan and Elo - Go Magic
    Jan 10, 2025 · A 1 dan player is recognized as a strong and capable competitor, often skilled enough to guide and teach others. A close-up photo of a Go board ...
  55. [55]
    Ryan Li - Go Ratings
    Feb 26, 2016 · Ryan Li · Graph · Data · Game List. Date, Rating, Color, Result, Opponent, Kifu. 2024-04-24, 3039, White, Loss, Xie Ke, 3575, ♂, cn flag, View ...
  56. [56]
    The Best Move on the Board: An Interview with Michael Redmond
    Jan 21, 2025 · Michael Redmond, the first Western 9-dan Go pro, shares his journey from the US to mastering Go in Japan, highlighting challenges, ...
  57. [57]
    Michael Redmond at Sensei's Library
    Sep 20, 2025 · 8-dan in 1996; 9-dan in 2000 (the first and only Western Go Professional to ever reach 9-dan). Redmond made the semifinals of the Gosei ...
  58. [58]
    Profile Michael Redmond 9-dan
    Became an insei (professional trainee) in 1977, made professional 1-dan in 1981, promoted to 2-dan in the same year, 3-dan in 1983, 4-dan in 1984, 5-dan in ...Missing: history Western
  59. [59]
    [PDF] Can Go AIs Be Adversarially Robust? - AAAI Publications
    Prior work found that superhuman Go AIs can be defeated by simple adversarial strategies, especially “cyclic” attacks.
  60. [60]
    What is a professional go player? - Nordic Go Dojo
    Jul 2, 2020 · A professional go player only has work as long as there are amateur players who are interested in the professionals' skills.
  61. [61]
    Professional Players - NEWS – North American Go Federation
    The North American Go Federation (NAGF) rank promotion policy can be found on the NAGF's website here (https://nagofed.org/docs/NAGF-pro-rank-promotion-system.
  62. [62]
    (PDF) Go players should not trust AI win rate - ResearchGate
    Sep 4, 2023 · However, the AI win rate does not accurately reflect the win rate of human Go players and might be misleading. Katago, first released in 2019, ...
  63. [63]
    Even Superhuman Go AIs Have Surprising Failure Modes - FAR.AI
    Jul 15, 2023 · Our adversarial testing algorithm uncovers a simple, human-interpretable strategy that consistently beats superhuman Go AIs.
  64. [64]
    Nihon Ki-in at Sensei's Library
    Sep 1, 2025 · The Nihon Ki-in is the main Japanese professional go organization, formed in 1924, with offices in Tokyo, Nagoya, and Osaka.
  65. [65]
    Kansai Ki-in at Sensei's Library
    Sep 1, 2025 · The Kansai Ki-in is one of the professional go bodies in Japan, just like the Nihon Ki-in. About 130 active pros are affiliated to it.
  66. [66]
    Kansai Ki-in - Wikipedia
    The Kansai Ki-in (関西棋院), ie, Kansai Go Association, is an organizational body for the game of Go in Japan, which was founded by Hashimoto Utaro in 1950.
  67. [67]
    News / Articles - American Go Association
    ... Weiqi Open Tournament, an international professional event organized by the Chinese Weiqi Association. ... Chinese Go association & Hongzhou Qi-yuan (Qi-yuan ...<|separator|>
  68. [68]
    Survey of the Korean Baduk Association (KBA)
    The Korean Baduk Association was formed as an institution in 1955, and reorganized into a foundation in 1970. The KBA is responsible for administering the ...
  69. [69]
    Chinese Go Association at Sensei's Library
    ### Summary of Zhongguo Qiyuan from Chinese Go Association Page
  70. [70]
    How AI turned the ancient sport of Go upside down | CNN
    Mar 24, 2023 · Even today, there are 40 million players in China studying in 200,000 schools, according to the Chinese Weiqi Association. Unlike chess ...Missing: Qiyuan backed
  71. [71]
    Asian AGF Federation
    We are pleased and honored to invite you to the West and Central Asian GO Championships in Kermanshah City of Iran, during the period February 11-15, 2025.Missing: collaborative cross- border TV
  72. [72]
    Asian TV Cup - CWI
    The Asian TV Cup is a knock out lightning go tournament. The seven participants are the winner and runner-up of each of the CCTV, NHK, and KBS tournaments from ...Missing: Federation events collaborative
  73. [73]
    European Pros
    ### List of European Professional Go Players
  74. [74]
    About the European Go Federation
    The EGF is a non-profit organization with the purpose of encouraging, regulating, co-ordinating and disseminating the playing of Go in Europe.
  75. [75]
    International GO Federation: IGF
    The IGF was formed in 1982 in Tokyo and is now the world's leading Go organisation with member associations representing 79 countries and regions.About Go · Africa · History of Go · South Africa