Henry Ernest Dudeney was married to Alice Whittier, a short story writer for Harper's Magazine. He himself was a mathematician who enjoyed creating logic puzzles, and contributed many of these to magazines under the pseudonym "Sphinx." In addition, he self-published many of his own collections of puzzles. Dudeney is also credited with creating "verbal arithmetic," a complex logic puzzle in which words are given number values to add up to other words.

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Available books:

• Amusements in Mathematics