The GS Caltex Cup (Korean: GS칼텍스배 바둑기전) is a Go competition.
Outline The GS Caltex Cup replaced the LG Refined Oil Cup. It is organized by the Maeil Business Newspaper, Maeil Broadcasting Network (MBN), and Korea Baduk Association, and sponsored by GS Caltex. The winner receives 70 million won in prize money, and the runner-up receives 30 million won (as of 2025). The final is a best-of-5. Komi is 6.5 points.
Players begin with 30 minutes of thinking time on their clock and add a 30 second increment per move (Fischer time). The time increment system was introduced in 2024, replacing the byoyomi system.
Past winners and runners-up Year Winner Score Runner-up1 1996 Yoo Changhyuk 3–2 Cho Hunhyun2 1997 Lee Changho 3–0 Choi Myung-hoon3 1998 3–0 4 1999 Seo Bongsoo 3–2 Yoo Changhyuk5 2000 Choi Myunghoon 3–1 Rui Naiwei6 2001 Lee Changho 3–0 Choi Myunghoon7 2002 Lee Sedol 3–1 8 2003 Lee Changho 3–0 Cho Hanseung9 2004 3–0 Park Yeonghun10 2005 Choi Cheol-han 3–2 Lee Changho11 2006 Lee Sedol 3–0 Choi Cheol-han12 2007 Park Yeonghun 3–2 Lee Sedol13 2008 3–0 Won Seongjin14 2009 Cho Hanseung 3–1 Park Yeonghun15 2010 Won Seong-jin 3–1 Cho Hanseung16 2011 Park Junghwan 3–0 Park Yeonghun17 2012 Lee Sedol 3–2 18 2013 Kim Jiseok 3–0 Lee Sedol19 2014 3–0 Choi Cheol-han20 2015 Mok Jinseok 3–121 2016 Lee Donghoon 3–0 Yun Chanhee22 2017 Ahn Kukhyun 3–2 Kim Jiseok23 2018 Shin Jinseo 3–2 Lee Sedol24 2019 3–0 Kim Jiseok25 2020 3–026 2021 3–2 Byun Sangil27 2022 3–0 Byun Sangil28 2023 Byun Sangil 3–0 Choi Jeong29 2024 Shin Min-jun 3–0 Park Sang-jin30 2025 Shin Jin-seo 3–0 An Seong-jun31 2026 Shin Min-jun 3–0 Park Junghwan
References
External links Sensei's Library Go to Everyone! Korea Baduk Association (in Korean)