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Byun Sang-il
Hangul	변상일
Hanja	卞相壹
Revised Romanization	Byeon Sangil
Born	(1997-01-14) 14 January 1997 (age 28) South Korea
Turned pro	2012
Rank	9 dan
Affiliation	Korea Baduk Association
Medal record Men's Go Representing  South Korea Asian Games 2022 Hangzhou Men's team

Byun Sang-il (Korean: 변상일; born 14 January 1997) is a South Korean professional Go player.

Career

Byun Sang-il was born in Jinju, South Gyeongsang Province. He studied Go with local 9-dan professional Moon Myeong-geun [ko], before moving to Seoul in 2007 to further pursue Go. There, he first went to Lee Sedol's baduk dojang, and later Golden Bell Baduk Dojang. He earned professional 1 dan rank in January 2012, when he was 15 years old.

In 2018, he led his team Posco Chemtech to win the Korean Baduk League, and was named league MVP. His record was 10 wins and 4 losses in his regular league games and 2 postseason wins.

He won the Guksu Mountains International Baduk Championship in 2021, defeating Shin Jinseo in the final round. He also won the Crown Haitai Cup in 2022, a tournament for players under 25.

He won a major international championship in the Chunlan Cup in July 2023, with a 2–0 victory over Chinese player Li Xuanhao in the finals. Later that same month, he won Korea's GS Caltex Cup for the first time, after having been the runner-up the previous two years.

His highest ranking has been number two in the Korea Baduk Association's official rankings of Korean players, which he first reached in 2022. He is currently number three among Korean players.

2025 LG Cup controversy

Byun won his second major international tournament title in the 29th LG Cup World Baduk Championship in January 2025, becoming the first player in the history of Go world championships to claim the title without winning an actual on-board game, with the outcome decided entirely by referee rulings.

Byun was declared the winner of the best-of-three final in an unprecedented event after his opponent Ke Jie was disqualified in game 2 for rule violations and forfeited in game 3 due to a dispute over the timing of the penalty for another similar rule violation. A significant controversy in the tournament was around the enforcement of the rule violated by Ke Jie, which was introduced by the Korea Baduk Association in November 2024, well after the LG Cup had already commenced in May. The change in rules midway through the tournament sparked debate, with critics arguing that it violates sports conventions and renders the final's penalties questionable. The rule required players to place captured stones on the bowl lid, to keep track of them as an aid to counting the score. Reflecting differences in scoring systems, there is no such rule in China, where players might set captured stones aside anywhere near the board or put the stones back into their opponent's bowl. Therefore, Chinese players have struggled to adapt to this change in Korean rules.

During the second game of the LG Cup final, Ke Jie violated the rules twice. The first violation resulted in a two-point penalty and a warning. Later in the game, Ke Jie again failed to place a captured stone on the bowl lid, prompting an objection from Byun Sang-il. As per the rules, Ke Jie was penalized for the second violation with an immediate loss. This marked the first instance in the history of the Go World Championship final where a game was terminated due to a player's rule violation.Some players expressed shock and anger at Byun's act of reporting his opponent over the trivial matter, stating that his actions "tarnished the image upheld by the predecessors of Go."

In the third game the next day, Ke Jie failed to immediately place two captured stones on the bowl lid after capturing them. Ke Jie and the Chinese side objected to the referee's handling of the situation, because the referee paused the game after several moves had already been played, at a time during Byun's turn, which gave him additional thinking time. Ke Jie said that the referees had repeatedly paused the games during Byun's turns over the games in the final. Ke Jie informed the referee that he did not oppose the penalty but requested that the game be resumed immediately and paused only after Byun had made his move. However, the referee dismissed the request, which, from Ke Jie's perspective, made it seem as if the referee was extending the pause time to give Byun additional time and his actions have already affected the outcome of the game. (According to the Chinese Go rules about suspending games and sealing moves as well as the Adjournment rule of GO, the player who has made their move should immediately leave the playing area. The player whose turn it is must think and record the point where they plan to play on a designated piece of paper, which is then sealed and handed to the referee. When the game resumes, the referee opens the sealed paper and makes the move at the marked location, and the game proceeds. The new Korean Go rules do not provide detailed regulations on this matter.) Ke Jie considered the ruling unfair, refused to accept it, and demanded a replay. No agreement was reached after two hours, and Ke Jie left the venue, resulting in a loss by default. This marked the first time in the history of the Go World Championship final that a game was terminated due to a player's resignation. The Chinese Weiqi Association released a statement saying that they do not accept the outcome of the third game.

During the LG Cup award ceremony, Byun stated: "The game ended in an unpleasant manner, which made me feel very uncomfortable. I completely understand Ke Jie's position." He also told reporters that he was unaware of the rule before the referee announced Ke Jie's violation for failing to properly handle captured stones. Byun further expressed his belief that the rule is unnecessary, as it does not affect the outcome of the game.

References

1. "반상의 '모범 노동자' 변상일 대기만성 코스 뚜벅뚜벅". Ilyo Shinmun (in Korean). 2020-08-12.
2. "대물탄생, '변상일'에 주목하라!". Cyberoro (in Korean). 2012-01-22.
3. "진주 출신 변상일 초단 프로바둑계 입문". Gyeongnamdomin News (in Korean). 2012-01-17.
4. "포스코켐텍 변상일, KB바둑리그 첫 MVP 수상". Yonhap News Agency (in Korean). 2018-12-14.
5. "변상일, 거함 신진서 격침… 국수산맥 국제바둑 우승". The Chosun Ilbo (in Korean). 2021-12-12.
6. "변상일, 1패 뒤 2연승…크라운해태배 역전 우승". Yonhap News Agency (in Korean). 2022-01-27.
7. "변상일 메이저 첫 우승...'남버 3′ 설움 털었다". The Chosun Ilbo (in Korean). 2023-07-19.
8. "변상일, GS칼텍스배 첫 우승…세계기전 춘란배 이어 2관왕". Yonhap New Agency (in Korean). 2023-07-31.
9. ^ "기사랭킹". Korea Baduk Association (in Korean). Retrieved 2024-07-12.
10. ^ 麦, 城 (2025-01-24). "一场没有赢家的闹剧". Oriental Sports Daily (in Chinese).{{cite news}}: CS1 maint: url-status (link)
11. ^ "中国围棋协会回应柯洁退赛：不接受本届LG杯第三局结果！聂卫平：围棋界的悲剧". National Business Daily (in Chinese). 2025-01-23.
12. ^ Cheon, Byeong-hyeok (2025-01-22). "커제 '사석 관리' 두 번 위반…LG배 결승 2국 초유의 반칙패(종합)". Yonhap News Agency (in Korean).{{cite news}}: CS1 maint: url-status (link)
13. "韩国围棋规则为何规定将"死子"放入棋盒盖？——从柯洁LG杯决赛次局犯规负说起". Xinhuanet (in Chinese). 2025-01-23.
14. "战鹰：棋不能也不该这样去赢". Oriental Sports Daily (in Chinese). 2025-01-24.{{cite news}}: CS1 maint: url-status (link)
15. 厉, 苒苒 (2025-01-24). "韩方宣布柯洁退赛，卞相壹零胜获LG杯冠军". Shanghai Observer (in Chinese).{{cite web}}: CS1 maint: url-status (link)
16. "제29 LG배 조선일보 기왕전 결승 3번 최종국". YouTube (in Korean). 2025-01-24.{{cite web}}: CS1 maint: url-status (link)
17. "中国围棋规则 (Chinese GO rule)".
18. ^ 권, 숙희. "'파행' 속 패한 커제 "평생 이런 굴욕 없어"…中선 '응원 봇물'". Yonhap news agency.
19. Cheon, Byeong-hyeok (2025-01-23). "파행으로 얼룩진 LG배 결승 3번기…변상일, 커제 기권으로 우승". Yonhap News Agency.{{cite news}}: CS1 maint: url-status (link)
20. "커제, 오늘도 돌통에 돌 안 넣었다… 변상일 LG배 행운의 우승". Joongang Ilbo (in Korean). 2025-01-23.
21. "中国围棋协会：不接受本届LG杯第三局结果" (in Chinese). 2025-01-23 – via news.china.com.cn.
22. "卞相壹拿到3亿韩元奖金，回应柯洁被判负：裁判判罚时才知道新规". National Business Daily. 2025-01-24.

External links

• Korea Baduk Association profile (in Korean)

• 1997 births
• Living people
• South Korean Go players
• Sportspeople from South Gyeongsang Province
• Asian Games medalists in go
• Go players at the 2022 Asian Games
• Asian Games gold medalists for South Korea
• Medalists at the 2022 Asian Games