Choi Seok-jeong

In this Korean name, the family name is Choi.

Choi Seok-jeong (Korean: 최석정; Hanja: 崔錫鼎; 1646–1715) was a Korean politician and mathematician in the Joseon period of Korea.

Choi Seok-jeong 최석정
Chief State Councillor
In office 5 May 1705 – 24 April 1710
Preceded by	Sin Wan
Succeeded by	Yi Yeo
In office 27 March 1703 – 29 July 1703
Preceded by	Seo Mun-jung
Succeeded by	Sin Wan
In office 24 July 1701 – 31 October 1701
Preceded by	Seo Mun-jung
Succeeded by	Seo Mun-jung
Left State Councillor
In office 12 April 1699 – 16 July 1699
Preceded by	Yi Se-baek
Succeeded by	Seo Mun-jung
Right State Councillor
In office 3 April 1697 – 13 July 1698
Preceded by	Seo Mun-jung
Succeeded by	Yi Se-baek
Personal details
Born	(1646-07-02)2 July 1646
Died	6 December 1715(1715-12-06) (aged 69)
Spouse	Lady Yi Gyeong-eok of the Yi clan
Children	Choe Chang-dae (son)
Parents	Choe Hu-ryang (biological) Choe Hu-sang (adoptive) (father) Lady An Jung-im of the Gwangju An clan (biological) (mother)

Choi Seok-jeong
Hangul	최석정
Hanja	崔錫鼎
RR	Choe Seokjeong
MR	Ch'oe Sŏkchŏng
Art name
Hangul	존와, 명곡
Hanja	存窩, 明谷
RR	Jonwa, Myeonggok
MR	Chonwa, Myŏnggok
Courtesy name
Hangul	여시, 여화
Hanja	汝時, 汝和
RR	Yeosi, Yeohwa
MR	Yŏsi, Yŏhwa
Posthumous name
Hangul	문정
Hanja	文貞
RR	Munjeong
MR	Munjŏng
Childhood name
Hangul	석만
Hanja	錫萬
RR	Seokman
MR	Sŏngman

He published the Gusuryak (Korean: 구수략; Hanja: 九數略) in 1700,^[1] the first known literature on Latin squares,^[2] predating Leonhard Euler by at least 67 years.^[3][4] He also invented the hexagonal tortoise problem.^[5] Choi was a member of the Jeonju Choe clan.

Choi Seok-jeong Award

The Choi Seok-jeong Award was created in 2021 to recognize those who develop or spread mathematics.^[6] Spelling of laureates' names matches their Wikipedia page, if it exists, the remainder uses Revised Romanization of Korean.

Year	Laureates	Affiliation
2021[7]	Kim Jae Kyoung Im Seonhui Song Hongyeop	KAIST/Institute for Basic Science Seoul National University Yonsei University
2022[8]	Kang Myeongju Oum Sang-il Hwang Hyeongju	Seoul National University KAIST/Institute for Basic Science POSTECH
2023	Kim Jongam Ye Jongcheol Kim Sanghyeon	Seoul National University KAIST Korea Institute for Advanced Study
2024[9]	Shin Jin-woo Ha Seungyeol Lee Ki-hyung	KAIST Seoul National University KAOS Foundation