Loyd, S.

Japanese: Loyd,S.(英語表記)LoydS
Loyd, S.

...The minimum number of moves is 255. The 15 puzzle shown in Figure 38 is also famous and was invented by Lloyd S. Loyd (1841-1911) in 1878. It is a puzzle in which 15 numbered cards are rearranged by sliding them, and depending on the initial arrangement, there are two possible arrangements: possible and impossible. ...

*Some of the terminology that mentions "Loyd, S." is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…最少の手数は255手である。図38の15パズルも有名で,ロイドS.Loyd(1841‐1911)の1878年の創案になる。15枚の番号札を滑らせながら並べ替えるパズルで,最初の配置に応じて可能な並べ替えと不可能な並べ替えの2通りの配置ができる。…

※「Loyd,S.」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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