Kurushima Kinai (久留島 喜内, died January 9, 1757), also known as Kurushima Yoshita and Kurushima Yoshihiro (久留島 義太), was a Japanese mathematician in the Edo period.
The Japanese board game of shogi attracted Kurushima's interest; and he was recognized in his own time as a master player. Among shogi players, he continues today to be well known for seven "puzzle ring" gambits with subsequent sequenced maneuvers—including the "silver puzzle ring."
In his lifetime, he was recognized among the most prominent intellectuals. His mathematical gift was highly esteemed. Kurushima, like most of his contemporaries, was very interested in the mathematical problems involved in "magic squares."
Selected works
Kurushima's published writings are few.
This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources.- Kurushima kyokusū (久留島極数) OCLC 033747221
- Kyūshi ikō. 1 (久氏遺稿. 天之卷) OCLC 033745707
- Kyūshi ikō. 2 (久氏遺稿. 地之卷) OCLC 033746085
- Heihō reiyaku no jutsu (平方零約之術) OCLC 033745451
See also
- Sangaku, the custom of presenting mathematical problems, carved in wood tablets, to the public in shinto shrines
- Soroban, a Japanese abacus
- Japanese mathematics
Notes
- 久留島喜内 -- Chiba University, Dept. of Mathematics and Informatics
- List of Japanese mathematicians -- Clark University, Dept. of Mathematics and Computer Science
- ^ WorldCat Identities Archived 2010-12-30 at the Wayback Machine: 久留島義太 -1757
- Smith, David. (1914). A History of Japanese Mathematics, p. 176. , p. 176, at Google Books
- Shogi, "Famous Mate Problems" -- #62, #63, #68, #69, #79
- La Revue de l'Association Française de Shogi, Juillet 1998, Numéro 19, p. 4.
- Smith, p. 166. , p. 166, at Google Books
- Michiwaka, Yoshimasa. (1997). "Magic Squares in Japanese Mathematics," Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures, p. 539. , p. 539, at Google Books
References
- Endō Toshisada (1896). History of mathematics in Japan (日本數學史史, Dai Nihon sūgakush). Tōkyō: _____. OCLC 122770600
- Selin, Helaine. (1997). Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures. Dordrecht: Kluwer/Springer. ISBN 9780792340669; OCLC 186451909
- David Eugene Smith and Yoshio Mikami. (1914). A History of Japanese Mathematics. Chicago: Open Court Publishing. OCLC 1515528 -- note alternate online, full-text copy at archive.org