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Bezig met laden... Puzzle Box, Volume 1 (Dover Brain Games) (editie 2016)door Andrea Gilbert (Auteur), Bram Cohen (Auteur), Helen Grabarchuk (Auteur), Donald Knuth (Auteur), Ed Pegg Jr. (Auteur) — 8 meer, Richard Candy (Auteur), Erich Friedman (Auteur), Harry Nelson (Auteur), Shelly Hazzard (Auteur), Tanya Grabarchuk (Auteur), Peter Grabarchuk (Redacteur), Serhiy Grabarchuk (Redacteur), Peter Winkler (Voorwoord)
Informatie over het werkPuzzle Box, Volume 1 door Andrea Gilbert
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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. Geen bibliotheekbeschrijvingen gevonden. |
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Google Books — Bezig met laden... GenresDewey Decimale Classificatie (DDC)793.73The arts Recreational and performing arts Indoor games and amusements Non-action games, puzzles [boardgames now 794] Puzzles and puzzle gamesWaarderingGemiddelde:
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The puzzles are nicely organized with most pages blending easy and hard puzzles, all of different styles—something for everyone on each full-page spread. With bright illustrations it’s easy for the chess-player to flip to the next chess puzzle, while the wordsmith fills in the blanks, the mathematician applies logic to names on a grid, the pattern-matcher folds cubes, and everyone together discusses how to split a shape into identical parts. There are mazes, linkages, odd ones out and more, and every page is a delight. Plus, there’s enough to last all through the year, at which point perhaps you’ll be able to buy volume 2.
Stars indicate levels of difficulty, and answers are given in the back of the book, mostly as clear bright illustrations making them easy to understand. I enjoyed the fact that the answers don’t take up half the book, and I particularly enjoyed the “puzzle types” listing on the back page, allowing more determined browsers to find exactly what they’re looking for.
Puzzle Box is inviting, intriguing, social and fun. Highly recommended.
Disclosure: I was given a copy and it’s much enjoyed, sitting on my coffee table. ( )