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    Henry Ernest Dudeney (10 April 1857 – 23 April 1930) was an English author and mathematician who specialised in logic puzzles and mathematical games. He...
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  • (1866–1945), English writer, wife of Henry Henry Dudeney (1857–1930), English writer and mathematician Dudeney number Leonard Dudeney (1875–1956), English newspaper...
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  • Thumbnail for Tangram
    on behalf of a number of Chinese scholars to the prominent puzzlist Henry Dudeney reads "The result has been to show that the man Tan, the god Tan, and...
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  • first natural number is equal to the second. The name derives from Henry Dudeney, who noted the existence of these numbers in one of his puzzles, Root...
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  • Bodycombe Emily Cox Henry Dudeney Tony Fisher Martin Gardner Scott Kim Lloyd King Sam Loyd Uwe Mèffert Larry D. Nichols Henry Rathvon Tom M. Rodgers...
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  • Thumbnail for Alice Dudeney
    Alice Louisa Dudeney (née Whiffin; 21 October 1866 – 21 November 1945) was an English author and short story writer. The wife of Henry Dudeney, a fellow...
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  • Thumbnail for Three utilities problem
    utility companies in the plane. When posing it in the early 20th century, Henry Dudeney wrote that it was already an old problem. It is an impossible puzzle:...
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  • classic example, published in the July 1924 issue of Strand Magazine by Henry Dudeney, is: S E N D + M O R E = M O N E Y {\displaystyle...
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  • Thumbnail for The spider and the fly problem
    between two points on the surface of a cuboid. It was originally posed by Henry Dudeney. In the typical version of the puzzle, an otherwise empty cuboid room...
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  • puzzles. Some notable creators of puzzles are: Ernő Rubik Sam Loyd Henry Dudeney Boris Kordemsky David J. Bodycombe Will Shortz Oskar van Deventer Lloyd...
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  • Thumbnail for No-three-in-line problem
    slopes, not only those aligned with the grid. It was introduced by Henry Dudeney in 1900. Brass, Moser, and Pach call it "one of the oldest and most...
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    teasers, under a column called "Perplexities", first written by Henry Dudeney. Dudeney introduced many new concepts to the puzzle world, including the...
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  • and glass artist) Humphry Ditton (minister) Harvey Dubner (engineer) Henry Dudeney (civil servant) Albrecht Dürer (painter) Greg Egan (writer) M. C. Escher...
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  • republished in Stigler's collection "Statistics on the Table" For example, Henry Dudeney noted in his 1917 Amusements in Mathematics solution 129 that Pell's...
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  • Thumbnail for Tessellation
    Authors such as Henry Dudeney and Martin Gardner have made many uses of tessellation in recreational mathematics. For example, Dudeney invented the hinged...
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  • Thumbnail for Kayles
    is a simple impartial game in combinatorial game theory, invented by Henry Dudeney in 1908. Given a row of imagined bowling pins, players take turns to...
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  • Publications Inc., p. xi, ISBN 0-486-20498-7 Newing, Angela (1994), "Henry Ernest Dudeney: Britain's Greatest Puzzlist", in Guy, Richard K.; Woodrow, Robert...
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  • dissection puzzles. Puzzle creators Sam Loyd in the United States and Henry Dudeney in the United Kingdom were among the most published. Since then, dissection...
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  • the News of the World phone hacking affair Henry Dudeney (1857–1930), author and mathematician Alice Dudeney (1866–1945), author and diarist Roger Dean...
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    appeared in the late 19th and early 20th centuries in the works of Henry Dudeney, Sam Loyd, Édouard Lucas, Professor Hoffmann, and Émile Fourrey, among...
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    1998 as A Lewes Diary: 1916–1944 describing her life in Lewes with Henry Dudeney before and during the interwar years. Lewes also features in a range...
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  • pectoris. Preliminary report. Am Heart J 1959; 27:375. For example Henry Dudeney noted in his 1917 Amusements in Mathematics solution 129 that Pell's...
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  • Puzzles and Other Curious Problems is a 1907 mathematical puzzle book by Henry Dudeney. The first part of the book features a series of puzzles based on the...
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    earliest puzzle containing a complete set of pentominoes appeared in Henry Dudeney's book, The Canterbury Puzzles, published in 1907. The earliest tilings...
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  • that this law had earlier been discovered by many others, including Henry Dudeney (1917). 1983: Two separate research groups led by American Robert Gallo...
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  • theory and prefigured the idea of topology. The famous British puzzler Henry Dudeney added several puzzles to this category.[citation needed] Transportation...
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  • Leonard Dudeney (1875–1956) was an English newspaper editor, journalist and confidant of Ramsay MacDonald. He was acting and assistant editor in Shanghai...
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    Eastaway, Thinking outside outside the box, Chalkdust Magazine, 2018-03-12 Dudeney, Henry; Gardner, Martin (1967). "536 Puzzles And Curious Problems". p. 376...
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  • mathematics books by Édouard Lucas, Rouse Ball, Wilhelm Ahrens, and Henry Dudeney. In his lifetime, Kirkman would complain about his serious mathematical...
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  • Zealand, f/p) Agnes Mary Frances Duclaux (1857–1944, England, p/f/nf) Henry Dudeney (1857–1930, England, nf) Tessa Duder (born 1940, N Zealand, ch/f/d)...
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