Henry Ernest Dudeney (10 April 1857 -- 24 April 1930)Dudeney was an English mathematician who specialized in logic puzzles and mathematical games. Dudeney was born in Mayfield, East Sussex, England. In 1884 he married Alice Whittier, a writer who published a number of short stories in Harper's Magazine under the name "Mrs. Henry Dudeney". His career was in the Civil Service. Dudeney's most famous innovations were his solution to the Haberdasher's Puzzle (Cut an equilateral triangle into four pieces that can be rearranged to make a square) and the first known cross-number puzzle. Dudeney was a contributor to the Strand Magazine under the pseudonym of "Sphinx". He also published several collections of puzzles, including The Canterbury Puzzles (1907), Amusements in Mathematics (1917), and Modern Puzzles (1926). Works |