{"product_id":"536-puzzles-and-curious-problems-9780486796864","title":"536 Puzzles and Curious Problems","description":"For two decades, self-taught mathematician Henry E. Dudeney wrote a puzzle page, Perplexities, for \u003ci\u003eThe Strand Magazine.\u003c\/i\u003e Martin Gardner, longtime editor of \u003ci\u003eScientific American\u003c\/i\u003e's mathematical games column, hailed Dudeney as England's greatest maker of puzzles, unsurpassed in the quantity and quality of his inventions. This compilation of Dudeney's long-inaccessible challenges attests to the puzzle-maker's gift for creating witty and compelling conundrums. \u003cbr\u003eThis treasury of intriguing puzzles begins with a selection of arithmetical and algebraical problems, including challenges involving money, time, speed, and distance. Geometrical problems follow, along with combinatorial and topological problems that feature magic squares and stars, route and network puzzles, and map coloring puzzles. The collection concludes with a series of game, domino, match, and unclassified puzzles. Solutions for all 536 problems are included, and charming drawings enliven the book.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eBinding Type:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Dover Publications\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 08\/17\/2016\u003cbr\u003e\u003cb\u003eISBN:\u003c\/b\u003e 9780486796864\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 448\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 1.15lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 8.40h x 5.50w x 1.00d","brand":"Henry E. Dudeney","offers":[{"title":"Default Title","offer_id":40292359274677,"sku":"9780486796864","price":21.21,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0473\/0804\/6492\/products\/img_f133cab5-ae54-4309-ab5e-3fb8c5240859.jpg?v=1624331104","url":"https:\/\/pastforward.org\/products\/536-puzzles-and-curious-problems-9780486796864","provider":"Past Forward","version":"1.0","type":"link"}