Bild:Samuel Loyd.jpg
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Samuel_Loyd.jpg (7 kB, MIME-Typ: image/jpeg)
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[edit] Summary
http://www-gap.dcs.st-and.ac.uk/~history/PictDisplay/Loyd.html and from sl: wiki
Samuel Loyd (January 31, 1841 - April 10, 1911) was an American puzzle author and recreational mathematician.
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