Puzzle Box, Volume 1
Title | Puzzle Box, Volume 1 PDF eBook |
Author | Peter Grabarchuk |
Publisher | Courier Dover Publications |
Pages | 101 |
Release | 2016-11-16 |
Genre | Games & Activities |
ISBN | 0486810046 |
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.
Puzzle Box
Title | Puzzle Box PDF eBook |
Author | Andy Parr |
Publisher | Courier Dover Publications |
Pages | 99 |
Release | 2017-06-21 |
Genre | Games & Activities |
ISBN | 0486813487 |
Treasury of 300 puzzles features 3D and chess puzzles, connections, dissections, foldings, geometrical and number puzzles, logic problems, matchstick puzzles, mazes, moving pieces, put-togethers, strimkos, sudoku, and visual and word puzzles.
Malevolent
Title | Malevolent PDF eBook |
Author | K.M. Carroll |
Publisher | Less Than Three Productions |
Pages | 233 |
Release | 2015-06-06 |
Genre | Young Adult Fiction |
ISBN | 1514345501 |
Colossal Book of Mathematics
Title | Colossal Book of Mathematics PDF eBook |
Author | Martin Gardner |
Publisher | W. W. Norton & Company |
Pages | 748 |
Release | 2001 |
Genre | Mathematics |
ISBN | 9780393020236 |
No amateur or math authority can be without this ultimate compendium of classic puzzles, paradoxes, and puzzles from America's best-loved mathematical expert. 320 line drawings.
My Best Mathematical and Logic Puzzles
Title | My Best Mathematical and Logic Puzzles PDF eBook |
Author | Martin Gardner |
Publisher | Courier Corporation |
Pages | 100 |
Release | 2013-04-10 |
Genre | Games & Activities |
ISBN | 0486320324 |
The noted expert selects 70 of his favorite "short" puzzles, including such mind-bogglers as The Returning Explorer, The Mutilated Chessboard, Scrambled Box Tops, and dozens more involving logic and basic math. Solutions included.
Unlocking the Puzzle Box: Mahanta Transcripts
Title | Unlocking the Puzzle Box: Mahanta Transcripts PDF eBook |
Author | Harold Klemp |
Publisher | |
Pages | 309 |
Release | 1997-07-01 |
Genre | Body, Mind & Spirit |
ISBN | 9781570430077 |
Your key to unlocking spiritual richness, happiness, grace and love in your life each day. Create a future of spiritual wisdom and success. It starts now.
Book of Curious and Interesting Puzzles
Title | Book of Curious and Interesting Puzzles PDF eBook |
Author | David Wells |
Publisher | Dover Publications |
Pages | 0 |
Release | 2006 |
Genre | Mathematical recreations |
ISBN | 9780486443416 |
"Of immense interest to those who enjoy recreational maths and puzzles . . . even the most hardened puzzler will find something new." -- Mathematical Gazette Puzzles are as old as history itself, following an arc like that of technology: centuries of slow progress, followed by rapid expansion in the 1800s, and an explosion of activity in the twentieth century. This collection by bestselling author David Wells, a Cambridge math scholar and teacher, follows that pattern. Its first part is devoted to puzzles from ancient Egypt and Babylon and subsequent sources, featuring those devised by Lewis Carroll, Eduard Lucas, Sam Loyd, and other master puzzlers of the Victorian era. The second part demonstrates the tremendous variety of twentieth-century puzzles. More than 560 puzzles are included, from the "mind sharpeners" of a medieval monk to the eighteenth-century Ladies' Diary, the Hindu Bhakshali manuscript, and riddles and popular rhymes. None requires any mathematics beyond the most elementary algebra and geometry -- and few require even that. Complete answers appear at the end.