## Loyd, Sam (1841–1911)Loyd became a full-time professional puzzlemaker only in the 1890s. He corresponded with his English counterpart Henry Dudeney and worked alongside his son Sam Loyd Jr. After the death of his father, Sam Loyd Jr. continued publishing puzzles that were mainly compilations of his father's work and in 1914 issued a now out-of-print and much sought-after mammoth collection of his father's puzzles called Cyclopedia of Puzzles.^{1} ## References- Loyd, Sam.
*Sam Loyd's Cyclopedia of 5000 Puzzles, Tricks, and Conundrums*. First published 1914. Reprinted New York: Pinnacle, 1976. - Loyd, Sam.
*Sam Loyd's Picture Puzzles with Answers*. Brooklyn, 1924. Reprinted Ontario, Canada: Algrove Publishing, 2000. - Gardner, Martin, ed.
*The Mathematical Puzzles of Sam Loyd*. Mineola, NY: Dover, 1959. 2 Vols. - White, Alain C.
*Sam Loyd and His Chess Problems*. Leeds, England: Whitehead & Miller, 1913.
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