Editing Robot-sumo (section)

== History ==
Robot-Sumo began in [[Japan]] with the [[Robot-sumo#All Japan Robot-Sumo Tournament|All Japan Robot Sumo Tournament]] <small>[<nowiki/>[[:ja:全日本ロボット相撲大会|jp]]]</small> organized by FUJISOFT Inc. <small>[<nowiki/>[[:ja:富士ソフト|jp]]]</small> for the first time in 1989 as an experimental tournament, with 33 participants. The first official edition was established in 1990, and, since then, this tournament has been held annually in [[Tokyo]]. The competition began with an idea from the president of FUJISOFT Inc., Hiroshi Nozawa, whose goal was to promote his company and recruit excellent human resources. But above all, it was because of his desire to give a dream to the younger people who are responsible for the future of his country, and because of the desire to create an environment to improve the quality of "[[Monozukuri]]" in Japan.<ref name=":1">{{Cite web |title=ここに歴史あり｜全日本ロボット相撲大会 - ALL JAPAN ROBOT-SUMO TOURNAMENT |url=https://www.fsi.co.jp/sumo/history/index.html |access-date=2024-12-31 |website=www.fsi.co.jp}}</ref> Initially, Robot Sumo only included the class that would be later known as Mega Sumo or Sumo 3kg class.

In 1992, the FUJISOFT tournament was held at the [[Ryōgoku Kokugikan]], where the tournament is still held today. In 1998, the tournament had 2,929 participants.<ref name=":1" />

Also in 1998, the first Robot-Sumo competition was held outside of Japan, at the ROBOlympics (later renamed [[RoboGames]]),<ref name=":7">{{Cite web |title=About |url=https://www.fsi.co.jp/sumo/robot/en/about.html |access-date=2025-01-03 |website=www.fsi.co.jp}}</ref> one of the largest robotics events at the time, held in the [[United States|USA]]. This event helped popularize sumo competitions around the world and led to the creation of categories derived from 3kg class, such as Mini Sumo (500g class), [[Lego|LEGO]] Sumo, among others, which further popularized the category as a whole, leading to the emergence of many competitions around the world, such as in [[Mexico]], [[Europe]], and [[South America]].

In 2004, at the 15th edition of the All Japan Robot-Sumo Tournament, the tournament introduced the 10kg class, but it would be discontinued in 2007.<ref name=":1" />

In 2008, RoboCore organized the first official national robot-sumo tournament in [[Brazil]] as part of the expansion of the national robotics competition "Winter Challenge",<ref name=":19">{{Cite web |title=RoboCore |url=https://www.robocore.net/eventos/wc4/0}}</ref> originally a [[robot combat]] focused event mainly contested by universitarian teams from the country. In this competition, Sumo 3kg Auto, Sumo 3kg RC and Sumo LEGO classes were held. Until 2019, the Winter or Summer Challenge was the biggest robotics event in Brazil and Latin America, considered the "Brazilian National Robotics Championship" by many.

Also in 2008, with the increasing worldwide popularity of robot-sumo, FUJISOFT held for the first time an edition of the All Japan Robot-Sumo Tournament with international competitors, from [[United States]], [[Mexico]] and [[Singapore]].<ref name=":1" /> Since then, the All Japan became a world championship, with the participation of overseas competitors as “Overseas Representatives”.

In 2010, the Robochallenge, in [[Romania]], hosted a robot-sumo event for the first time.<ref>{{Cite web |title=Robochallenge 2024 |url=https://robochallenge.ro/history/robochallenge-2010 |access-date=2025-01-05 |website=robochallenge.ro}}</ref> 

In 2013, FUJISOFT held the first official edition of the International Robot-Sumo Tournament {{NoteTag|Originally the "International Robot-Sumo Tournament 2013" was considered a test event, and was originally called the "International Robot-Sumo Pre-Tournament 2013". Currently, It is listed as part of the International Robot-Sumo Tournament without the status of a "test event".|name=Status of the International Robot-Sumo Tournament 2013}} (Japanese: 世界大会 sekai taikai), separating from the Japanese national All Japan competition (Japanese: 全国大会 zenkoku taikai), with only the best Japanese (champions, and later runners-up) advancing to the world tournament,<ref name=":16">{{Cite web |last=FUJISOFT Inc. |title=RobotSumo2013_leaflet.pdf |url=https://www.fsi.co.jp/sumo/pdf/RobotSumo2013_leaflet.pdf}}</ref><ref name=":25">{{Cite web |last=FUJISOFT Inc. |title=World Robot Sumo Championship Notice of the first INTERNATIONAL ROBOT SUMO TOURNAMENT 2014 to be held concurrently with the 26th All Japan Robot-Sumo Tournament |url=https://www.fsi.co.jp/e/press_release/docs/20141114_INTERNATIONAL%20ROBOT%20SUMO.pdf}}</ref> with both tournaments being held in the same day, in sequence. In this edition, tournament champions or national representatives from [[Austria]], [[United States|USA]], [[Baltic states|Baltic States]] ([[Estonia]], [[Latvia]] and [[Lithuania]]), [[Turkey]], [[Mexico]] and [[Ecuador]] participated as overseas representatives.<ref name=":16" /> The Auto tournament had 16 robots, and the RC tournament, 8 robots, in 2013.<ref name=":25" />

Between 2013 and 2017, without a massive number of Japanese robots (and with a higher number of non-Japanese robots, with some editions reaching more than 100 robots in a single class), non-Japanese international competitors achieved greater results in the International Tournament. European teams achieved significant results in the 3kg Auto class, including top places and championship titles.<ref name=":1" /> In 2017, the last edition of the International Robot-Sumo Tournament was marked by Mexican dominance in the Mega Sumo RC class, taking the first three positions and ahead of the Japanese champions.<ref>{{Cite web |title=全日本の部全国大会｜第29回｜大会結果｜ロボット相撲大会｜全日本ロボット相撲大会 - ALL JAPAN ROBOT-SUMO TOURNAMENT |url=https://www.fsi.co.jp/sumo/history/record/29/alljapan/index.html#tab |access-date=2024-12-31 |website=www.fsi.co.jp}}</ref>[[File:Brasil no All Japan Robot-Sumo Tournament 2019.jpg|thumb|330x330px|Parade of Nations in the All Japan Robot-Sumo Tournament 2019.]]In 2018, FUJISOFT reunified the Japanese All Japan competition with the International Tournament into a single tournament, as it was before 2013, retaining the All Japan Robot-Sumo Tournament name and labeling the final stage as the "Grand Final".<ref name=":30">{{Cite web |title=第30回｜大会結果｜ここに歴史あり｜全日本ロボット相撲大会 - ALL JAPAN ROBOT-SUMO TOURNAMENT |url=https://www.fsi.co.jp/sumo/history/record/30/index.html |access-date=2024-12-31 |website=www.fsi.co.jp}}</ref> In 2019, the competition was in its 31st edition, and had the participation of more than 20 countries, 104 autonomous robots and 78 radio-controlled robots in the Grand Final.<ref>{{Cite web |title=全国大会｜第31回｜大会結果｜ロボット相撲大会｜全日本ロボット相撲大会 - ALL JAPAN ROBOT-SUMO TOURNAMENT |url=https://www.fsi.co.jp/sumo/history/record/31/alljapan/index.html |access-date=2024-12-31 |website=www.fsi.co.jp}}</ref> With the competition unified again, robots from Japan once again dominated the top positions of the competition in 2018 and 2019.<ref name=":1" /><ref>{{Cite web |title=Previous Results |url=https://www.fsi.co.jp/sumo/robot/en/Results.html |access-date=2025-01-24 |website=www.fsi.co.jp}}</ref>

In 2019, FUJISOFT also organized the first Mini-Sumo event in Japan, as a test event (called pre-tournament) in All Japan, only for Auto category.<ref>{{Cite web |title=第31回｜大会結果｜ここに歴史あり｜全日本ロボット相撲大会 - ALL JAPAN ROBOT-SUMO TOURNAMENT |url=https://www.fsi.co.jp/sumo/history/record/31/index.html |access-date=2025-01-24 |website=www.fsi.co.jp}}</ref> 

In 2020, due to the [[COVID-19 pandemic in Japan]], the 2020 edition (32nd edition) of the All Japan Robot-Sumo Tournament was cancelled. 

In Brazil, due to the [[COVID-19 pandemic in Brazil|COVID-19 pandemic]], competitions were also canceled. In response, many teams began organizing remote competitions, in which participants controlled ready-made prototypes provided by the organization remotely through the [[internet]]. For the Robot Sumo category, the most popular was the Remote Mini Sumo RC class, in which participants controlled ready-made robots just like in a conventional competition, but remotely through the internet with a mobile phone application.<ref>{{Cite AV media |url=https://globoplay.globo.com/v/8966121/ |title=Diário TV 2ª Edição {{!}} Mogiano desenvolve tecnologia usada em competição de robôs {{!}} Globoplay |language=pt-br |access-date=2025-01-07 |via=globoplay.globo.com}}</ref> These competitions attracted not only Brazilian competitors, but also international competitors such as Argentines and Indians.<ref name=":3" />

In 2021 and 2022, FUJISOFT organized an alternative competition for the 32nd and 33rd editions remotely for [[Secondary education in Japan|high schoo]]<nowiki/>l competitors (Japanese: 高校学校 koukougakkou), which consisted of a sumo robot design contest.<ref>{{Cite web |title=第32回｜大会結果｜ここに歴史あり｜全日本ロボット相撲大会 - ALL JAPAN ROBOT-SUMO TOURNAMENT |url=https://www.fsi.co.jp/sumo/history/record/32/index.html |access-date=2024-12-31 |website=www.fsi.co.jp}}</ref><ref>{{Cite web |title=第33回｜大会結果｜ここに歴史あり｜全日本ロボット相撲大会 - ALL JAPAN ROBOT-SUMO TOURNAMENT |url=https://www.fsi.co.jp/sumo/history/record/33/index.html |access-date=2024-12-31 |website=www.fsi.co.jp}}</ref>

In 2022, RoboCore from [[Brazil]] remodeled its main and largest robotics competition, the "Winter Challenge", into the "RoboCore Experience" (RCX),<ref name=":2">{{Cite web |title=HOME |url=https://www.robocoreexperience.com/ |access-date=2024-12-31 |website=Robocore_XP_CPBR17 |language=pt}}</ref> the largest [[robot combat]] event in [[Latin America]]. The competition hosts the Mega Sumo, Mini Sumo and LEGO Sumo tournaments, jointly with the [[Robot combat|Robot Combat]], Line Follower, Robot Hockey, Robot Trekking, ArtBot and Robot Soccer competitions.<ref name=":3">{{Cite web |title=RoboCore Event Manager |url=https://events.robocore.net/rcx-cpbr14/entries |access-date=2024-12-31 |website=events.robocore.net}}</ref> The RoboCore Experience is held together with [[Campus Party]] Brazil.<ref name=":2" /> The 2023 RCX had 1330 registered competitors and almost 700 robots in all robotics categories.

In 2022, with the end of the COVID-19 pandemic, FUJISOFT once again organized the All Japan Robot-Sumo Tournament (34th edition), but only for local competitors. In the same event, a new pre-tournament for Mini Sumo class was organized by FUJISOFT.<ref name=":13">{{Cite web |title=第34回｜大会結果｜ここに歴史あり｜全日本ロボット相撲大会 - ALL JAPAN ROBOT-SUMO TOURNAMENT |url=https://www.fsi.co.jp/sumo/history/record/34/index.html |access-date=2024-12-31 |website=www.fsi.co.jp}}</ref> 

In 2023, All Japan, in its 35th edition, returned qualifying participants from overseas competitions for Mega Sumo class, for the first time since 2019. This year, the Mini Sumo tournament was officially added to the All Japan, but only for japanese competitors.<ref name=":1" />

In 2024, the robot Senju, from the Sumozade-Era Robotics team from [[Turkey]], became the first non-Japanese Mega Sumo champion of the All Japan Robot-Sumo Tournament since the reunification in 2018, winning in the Auto category.<ref name=":17">{{Cite web |title=全日本ロボット相撲大会 - ALL JAPAN ROBOT-SUMO TOURNAMENT |url=https://robot-sumo.jp/competition-00ac692d-32df-4199-bc13-6397712d5c2c |access-date=2025-01-05 |website=全日本ロボット相撲大会 - ALL JAPAN ROBOT-SUMO TOURNAMENT |language=ja}}</ref> Also in 2024, the Mini Sumo of All Japan started qualifying overseas competitors as well. Brazilian teams achieved great success, making the Mini Sumo Auto final, and also taking 2nd and 3rd places in Mini Sumo RC in that year.<ref name=":17" />

In April 2025, FUJISOFT announced that they "will primarily concentrate on the 500g class robots and will reduce participation in the 3kg class for both international and domestic teams", shifting the focus of the All Japan Robot-Sumo Tournament 2025 edition from the Mega Sumo class to the Mini Sumo class. They also announced that "in the future, country representative invitations may not be sent; only teams recognized in official tournaments will qualify for the Grand Final". <ref name=":31">{{Cite web |last=FUJISOFT |title=Instagram {{!}} We are excited to announce that registration for the All Japan Robot Sumo Tournament 2025 edition has officially begun. |url=https://www.instagram.com/p/DITqPLCtTJp/ |access-date=2025-04-18 |website=www.instagram.com}}</ref>