This original collection includes more than 300 mathematical puzzles by a dozen of the most distinguished names in the field, including software engineer Andrea Gilbert and Bram Cohen, author of the P2P BitTorrent protocol. Seventeen different types of challenges include 3-D puzzles, chess puzzles, geometric and logic puzzles, mazes, visual and word puzzles, sudoku, and more.
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Peter and Serhiy Grabarchuk are part of the Grabarchuk Puzzle Family. Over a period of decades they have produced puzzle books, puzzle apps, interactive puzzles, and more.
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Librería: Hawking Books, Edgewood, TX, Estados Unidos de America
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Librería: Half Price Books Inc., Dallas, TX, Estados Unidos de America
paperback. Condición: Very Good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority! Nº de ref. del artículo: S_468577008
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Condición: New. Brand New. Nº de ref. del artículo: 9780486810041
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Librería: Bookbot, Prague, Republica Checa
Softcover. Condición: As New. Leichte Kratzer / Abnutzungen / Druckstellen. Multiplying my age by 6 then subtracting 6 produces the same result as subtracting 7 from my age then multiplying by 7. How old am I? On my broken calculator with keys + - ÷ x =, the only functional number is 7. How can I get 34 to appear in the readout? A country mints four denominations of coins, in whole numbers of cents. It takes four of these coins to make 21¢, or 24¢, or 25¢, or 26¢. What are the denominations of the coins? These and almost 300 other mathematical puzzles appear in this original collection, devised by world-renowned mathematicians, puzzle creators, and devoted puzzle lovers. A unique puzzle project, it unites the efforts of a dozen authors, including software engineer Andrea Gilbert and Bram Cohen, author of the P2P BitTorrent protocol. Seventeen different types of challenges include 3-D puzzles, chess puzzles, connections, dissections, foldings, geometrical puzzles, logic problems, matchstick puzzles, mazes, moving pieces, number puzzles, put-togethers, strimko, sudoku, visual puzzles, weightings, and word puzzles. The difficulty level of each puzzle is marked by stars, ranging from 2 to 5. Average difficulty level is about 3 stars, promising puzzle enthusiasts many entrancing hours of solving and enjoyment. Nº de ref. del artículo: 0753cfd7-b57f-49b8-a7d2-0af944387a50
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Librería: Revaluation Books, Exeter, Reino Unido
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Librería: Rarewaves.com UK, London, Reino Unido
Paperback. Condición: New. Illustrated. Nº de ref. del artículo: LU-9780486810041
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