,久留島喜内 -- Chiba University, Dept. of Mathematics and Informatics also known as Kurushima Yoshita List of Japanese mathematicians -- Clark University, Dept. of Mathematics and Computer Science and , WorldCat Identities : 久留島義太 -1757 was a Japanese mathematician in the Edo period.Smith, David. (1914).

The Japanese board game of shogi attracted Kurushima's interest; and he was recognized in his own time as a master player.Shogi, "Famous Mate Problems" -- #62, #63, #68, #69, #79 Among shogi players, he continues today to be well known for seven "puzzle ring" gambits with subsequent sequenced maneuvers—including the "silver puzzle ring."La Revue de l'Association Française de Shogi, Juillet 1998, Numéro 19, p. 4.

In his lifetime, he was recognized among the most prominent intellectuals. His mathematical gift was highly esteemed.Smith, Kurushima, like most of his contemporaries, was very interested in the mathematical problems involved in "magic squares."Michiwaka, Yoshimasa. (1997). "Magic Squares in Japanese Mathematics,"

Selected works Kurushima's published writings are few.

OCLC 033747221 OCLC 033745707 OCLC 033746085 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

References Endō Toshisada (1896). . Tōkyō: _____. OCLC 122770600 Selin, Helaine. (1997). Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures. Dordrecht: Kluwer/Springer. ; 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

External links Shogi, Kuroshima's "Silver Puzzle Ring" gambit