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Kurushima Kinai
Japanese mathematician From Wikipedia, the free encyclopedia
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Kurushima Kinai (久留島 喜内; died January 9, 1757),[1] also known as Kurushima Yoshita[2] and Kurushima Yoshihiro (久留島 義太),[3] was a Japanese mathematician in the Edo period.[4]
The Japanese board game of shogi attracted Kurushima's interest; and he was recognized in his own time as a master player.[5] Among shogi players, he continues today to be well known for seven "puzzle ring" gambits with subsequent sequenced maneuvers—including the "silver puzzle ring."[6]
In his lifetime, he was recognized among the most prominent intellectuals. His mathematical gift was highly esteemed.[7] Kurushima, like most of his contemporaries, was very interested in the mathematical problems involved in "magic squares."[8]
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Selected works
Kurushima's published writings are few.[3]
- 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
References
External links
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