Henry Ernest Dudeney

Amusements in Mathematics Henry Ernest Dudeney

Henry Ernest Dudeney (1857-1930) was an English author and mathematician, creator of many logic puzzles and mathematical games. Working as a civil servant, he submitted puzzle contributions to newspapers and magazines. He had a successful column, "Perplexities", in The Strand Magazine. Dudeney exchanged puzzles with fellow recreational mathematician Sam Loyd for a while, but broke off the correspondence and accused Loyd of stealing his puzzles and publishing them under his own name. Some of Dudeney's most famous innovations were his 1903 success at solving the Haberdasher's Puzzle (Cut an equilateral triangle into four pieces that can be rearranged to make a square) and publishing the first known crossnumber puzzle in 1926. He has also been credited with discovering new applications of digital roots. Dudeney was a leading exponent of verbal arithmetic puzzles. Sourced from the public domain, this work has been convertedand retouched for maximum quality and readability. Some imperfections from the original are to be expected.