Henry Dudeney
puzzlist and mathematical games designer (1857–1930)

Henry Ernest Dudeney (10 April 1857 – 23 April 1930) was an English author and mathematician who specialised in logic puzzles and mathematical games. He is known as one of the foremost creators of mathematical puzzles.
Early life
Dudeney was born in the village of Mayfield, East Sussex, England, one of six children of Gilbert and Lucy Dudeney. His grandfather, John Dudeney, was well known as a self-taught mathematician and shepherd; his initiative was much admired by his grandson. Dudeney learned to play chess at an early age, and continued to play frequently throughout his life. This led to a marked interest in mathematics and the composition of puzzles. Chess problems in particular fascinated him during his early years.
Career
Although Dudeney spent his career in the Civil Service, he continued to devise various problems and puzzles. Dudeney's first puzzle contributions were submissions to newspapers and magazines, often under the pseudonym of "Sphinx". Much of this earlier work was a collaboration with American puzzlist Sam Loyd; in 1890, they published a series of articles in the English penny weekly Tit-Bits.
“Henry Dudeney” enters the record as puzzlist and mathematical games designer (1857–1930). Crown Archives preserves that source wording while asking what Henry, Dudeney and puzzlist can confirm, complicate or overturn.
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The entry’s evidential value lies in the named roles, institutions and publications that can be tested against primary documentation. The source revision retrieved here is dated Sep 7, 2026. The linked authority identifier is Q723598. VIAF identifies the subject as 100463646. The Library of Congress control number is n86808737. 3 of 6 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1857, 1930 and 1890.
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This entry incorporates text from “Henry Dudeney” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.