41. Basic Library List-Recreational Mathematics dudeney, henry E. Amusements in Mathematics Mineola, NY Dover, 1958. dudeney,henry E. The dudeney, henry E. 536 Puzzles and Curious Problems New York, http://www.maa.org/BLL/recmath.htm

Recreational Mathematics Back to Table of Contents Recreational Mathematics: Surveys * Averbach, Bonnie and Chein, Orin. Mathematics: Problem Solving through Recreational Mathematics New York, NY: W.H. Freeman, 1980. *** Ball, W.W. Rouse and Coxeter, H.S.M. Mathematical Recreations and Essays, Mineola, NY: Dover, 1987. Thirteenth Edition. * Beiler, Albert. Recreations in the Theory of Numbers Mineola, NY: Dover, 1964. *** Berlekamp, Elwyn R.; Conway, John Horton; and Guy, Richard K. Winning Ways for Your Mathematical Plays, New York, NY: Academic Press, 1982. 2 Vols. Cadwell, J.H. Topics in Recreational Mathematics New York, NY: Cambridge University Press, 1966. Foster, James E. Mathematics as Diversion Astoria, IL: Fulton County Press, 1978. *** Kraitchik, Maurice. Mathematical Recreations, Mineola, NY: Dover, 1953. Second Edition. * Melzak, Z.A. Companion to Concrete Mathematics, New York, NY: John Wiley, 1973, 1976. 2 Vols. ** Ogilvy, C. Stanley. Tomorrow's Math: Unsolved Problems for the Amateur, New York, NY: Oxford University Press, 1972. Second Edition.

42. Ed Pegg's Math Games - Square Packing (henry E. dudeney, Amusements in Mathematics, Problem 173, Mrs Perkins s Quilt).Define a quilt as square made from smaller integer squares. http://www.maa.org/editorial/mathgames/mathgames_12_01_03.html

Search MAA Online MAA Home Math Games Square Packing Ed Pegg Jr. , December 1, 2003 For Christmas, Mrs. Potipher Perkins received a very pretty patchwork quilt constructed of 169 square pieces of silk material. The puzzle is to find the smallest number of square portions of which the quilt could be composed and show how they might be joined together. Or, to put it the reverse way, divide the quilt into as few square portions as possible by merely cutting the stitches. (Henry E. Dudeney, Amusements in Mathematics , Problem 173, Mrs Perkins's Quilt) Define a quilt as square made from smaller integer squares. The order of a quilt is the number of smaller squares. The size is the edge length n of the full quilt. I urge everyone to try Dudeney's puzzle divide a 13×13 square into 11 smaller integer sided squares. Alternately, find an order 11 solution for quilt of size 13. No smaller order is possible, so this is an optimal quilt . Any optimal quilt is a Mrs. Perkins's Quilt. As an illustration, here are optimal quilts of size 14 to 58. Figure 1. Mrs. Perkins's Quilts of size 14 to 58.

43. DUDENEY, HENRY E. Autor | Unilibro España Translate this page dudeney, henry E. ,LOS GATOS DEL HECHICERO dudeney, henry E. http://www.unilibro.es/find_buy_es/result_scrittori.asp?scrittore=DUDENEY, HENRY

44. LOS GATOS DEL HECHICERO - DUDENEY, HENRY E. - Zugarto Ediciones | Libros Unilibr http://www.unilibro.es/find_buy_es/product.asp?sku=241813&idaff=0

45. Occasional List Of Puzzle Related Books For Sale - 14th April 2005. 3006, dudeney, henry E. Amusements in Mathematics, Thos Nelson and Sons 1917 gHardback First 3036, dudeney, henry E. More Puzzles and Curious problems http://www.puzzlemuseum.com/sales/booklist.htm

Occasional List of Puzzle related books for Sale - 14th April 2005. Depending on your Web-Browser you may have to reduce the font size to see all the text in the table below. No contract, obligation, or undertaking is implied by this list and we reserve the right to sell, swap, withdraw from sale, be mean, be generous, have a bath or anything else, entirely on the basis of the moment's whim. Send orders by email and we will confirm the availability and total cost including postage. Please ensure you include the Item Number, Author, and Title All prices are in UK Pounds. Postage/Shipping extra. Book description abbreviations:- m. Mint, f.fine (almost new), vg very good (showing only slight signs of use), g. Good (well used), p poor (text complete reading copy only, Waf. with all faults, nd. no date, cl. Cloth, Pict cloth. pictorial cloth. Aeg. all edges gilt, aec. all edges coloured, teg. top edge gilt, fep. front end paper, dw. dust wrapper

46. Pythagorean Theorem Or The Spider And The Fly henry dudeney raised this question. A spider and a fly are in the same room . dudeney, henry Ernest. 1958. The Canterbury Puzzles. 121122. Dover. http://members.tripod.com/mumnet/action/action001.htm

setAdGroup('67.18.104.18'); var cm_role = "live" var cm_host = "tripod.lycos.com" var cm_taxid = "/memberembedded" Search: Lycos Tripod Free Games Share This Page Report Abuse Edit your Site ... Next Mum Mathematical Ulterior Motives - the mother of all ulterior sites - action The Pythagorean Theorem or The Spider and The Fly? For almost every course one can find a small set of questions ... questions that can be stated with the minimum of technical language, that are sufficiently striking to capture interest; that do not have trivial answers, and that manage to embody in their answers the important ideas of the subject. P R Halmos 1975 Henry Dudeney raised this question: A spider and a fly are in the same room. The fly is fast asleep and the spider is hungry. What is the shortest route the spider might take? Ah, I almost forgot! The spider can not swing itself like Tarzan, king of the jungle. It is limited to crawling on the walls, ceiling and floor. The room is 15 meters long, 6 m wide and 6 m high. The spider is 0.5 m from the ceiling and 3 m from each wall. The fly is 0.5 m from the floor and 3 m from each wall. I will give you a hint: The answer is not 21 m.

47. PuzzleCLUB - Loyd, Dudeney And... Galactic Takeover you two classic challenges by Sam Loyd and henry E. dudeney, which were createdmore than 80 years ago. The Nine Squares Game by henry E. dudeney http://www.puzzles.com/PuzzleClub/Articles/Loyd-Dudeney-GTO.htm

Challenge 1 Challenge 2 Challenges Buy Me ... MC 15 Loyd, Dudeney and... Galactic Takeover by Serhiy Grabarchuk t's amusing to see how things that were interesting to puzzlers many decades ago look fresh and attractive today. Of course, they were presented in a somewhat different manner, but their core is still appealing to their solvers. Everybody knows the Dots & Boxes game. It's a classic pencil-and-paper game that kids and adults have played for over 100 years. Rules are so simple that young children can understand them, but the game has so interesting and non-trivial strategy that to play well will challenge even an adult. At the same time it makes a wonderful puzzle producing almost endless number of challenges every time you play it. Below we'd like to propose you two classic challenges by Sam Loyd and Henry E. Dudeney, which were created more than 80 years ago. We give them saving authentic texts and illustrations to demonstrate the true "puzzling smell" of these little old puzzle gems. To make these puzzles even more challenging we decided to propose them along with some modern challenges for the Galactic Takeover game as our Mini-Contest, which now is finished, though.

48. PuzzleCLUB - Loyd, Dudeney And... Galactic Takeover Solutions Also we show the two original solutions by Sam Loyd and henry E. dudeney.The Boxer s Puzzle (Solution by Sam Loyd) This odd little puzzlegame proved to be http://www.puzzles.com/PuzzleClub/Articles/Loyd-Dudeney-GTOSol.htm

Back Loyd, Dudeney and... Galactic Takeover (Solutions) Many of your solutions were correct, but just part of them was the best - showing the best (maximal) score against the best possible play of the second player. Below we'd like to propose you all the best solutions to the six challenges of Mini-Contest 15. For each challenge the maximal winning score (against the best player) is given. Challenge 1: G-H; 7 to 2. Challenge 2: H-L (or M-N); 8 to 1. Challenge 3: B-C; 7 to 2. Challenge 4: F-G; 6 to 3. Challenge 5: F-G; 7 to 2. Challenge 6: A-B (or B-F); 8 to 1. Also we show the two original solutions by Sam Loyd and Henry E. Dudeney. The Boxer's Puzzle (Solution by Sam Loyd) The Nine Squares Game (Solution by Henry E. Dudeney) I should play MN. My opponent may play HL, and I play CD. (If he had played CD, I should have replied HL, leaving the same position.) The best he can now do is DH (scoring one), but, as he has to play again, I win the remaining eight squares. Back To ensure the best Internet Experience, please download the latest version of the

49. Math Lessons - Henry Dudeney Math Lessons henry dudeney. a writer who published a number of short storiesin Harper s Magazine under the name Mrs. henry dudeney . http://www.mathdaily.com/lessons/Henry_Dudeney

Search Mathematics Encyclopedia and Lessons Lessons Popular Subjects algebra arithmetic calculus equations ... more References applied mathematics mathematical games mathematicians more ... 1930 deaths Henry Dudeney Henry Ernest Dudeney 10 April 24 April ) was an English author and mathematician who specialised in logic puzzles and mathematical games . Dudeney was born in the town of Mayfield, East Sussex , England, and died in nearby Lewes . In 1884 he married Alice Whittier, a writer who published a number of short stories in Harper's Magazine under the name "Mrs. Henry Dudeney". Dudeney learned to play chess at an early age, and continued to play frequently throughout his life. This led to a particular interest in mathematics and the composition of puzzles . Although he spent his career in the Civil Service , Dudeney continued to devise various problems and puzzles. He exchanged puzzles with fellow recreational mathematician Sam Loyd for a while, but broke off the correspondence and accused Loyd of stealing Dudeney's puzzles and publishing them under his own name. Dudeney contributed for many years to the Strand Magazine . He also published several collections of puzzles, including

50. Dudeney - Classic Puzzles Classic mathematical puzzles by henry Ernest dudeney. henry Ernestdudeney (18571930) was England s greatest composer of puzzles. http://thinks.com/puzzles/dudeney/dudeney.htm

Home Puzzle Parade H E Dudeney Classic Puzzles by Henry Ernest Dudeney Henry Ernest Dudeney (1857-1930) was England's greatest composer of puzzles. He was a near-contemporary of Sam Loyd , America's greatest puzzle expert, and the two men frequently exchanged puzzles and ideas. Many of Loyd's and Dudeney's published puzzles show strong similarities, demonstrating how close their collaboration sometimes was. The Damaged Engine The Man and the Dog Crossing the River The 22 Game ... Books by H E Dudeney Search the Web Search Thinks.com in category: All Products Apparel Baby Beauty Books Classical Music DVD Electronics Gourmet Food Jewelry Magazines Music Musical Instruments Office Products Outdoor Living Pet Supplies Photo Software Sporting Goods Toys VHS Video Games Games, Puzzles, Pastimes Cash Games Crossword Central Daily Content ... Support Thinks.com

51. Books : Search by henry Ernest, dudeney September 01, 1983. 2. Books 536 curious problemsand puzzles 536 curious problems and puzzles by henry Ernest dudeney http://thinks.com/cgi-bin/apf4/apf.pl?Operation=ItemSearch&SearchIndex=Books&Aut

52. Mt. Baker Puzzle Books - Pentomino History dudeney quotes from Hayward s Life of William the Conqueror, published in 1613, The broken chessboard henry again stroke Louis with the chessboard, http://www.mtbakerpuzzlebooks.com/history.php

home about us what's a pentomino? puzzle gallery ... ordering Pentomino History Pentomino puzzles have been around since at least the early 1900's, when they were mentioned in The Canterbury Puzzles by Henry Dudeney (Dover Publications, 1986; first published in London, 1907). This book is still in print and popular among puzzle enthusiasts today. Dudeney quotes from Hayward's Life of William the Conqueror , published in 1613, the following humorous and obscure bit of history: "Toward the end of his reigne he appointed his two sonnes Robert and Henry, with joynt authoritie, governors of Normandie; the one to suppresse either the insolence or levitie of the other. These went together to visit the French king lying at Constance: where, entertaining the time with varietie of disports, Henry played with Louis, then Daulphine of France, at chesse, and did win of him very much. "Hereat Louis beganne to growe warme in words, and was therein little respected by Henry. The great impatience of the one and the small forbearance of the other did strike in the end such a heat between them that Louis threw the chessmen at Henry's face. "Henry again stroke Louis with the chessboard, drew blood with the blowe, and had presently slain him upon the place had he not been stayed by his brother Robert.

53. MathsNet Daily Puzzle puzzle king henry Ernest dudeney called 536 Puzzles and Curious Problems, dudeney (the name is pronounced to rhyme with scrutiny ) was born in http://www.mathsnet.net/dailypuzzle.html

home geometry curriculum puzzles ... MathsNet.com The DAILY for There are three daily puzzles, which change every day of the month. Subscribe to newsletter The first will require you to revisit this page on other days of the week in order to discover what each day's number is! The second daily puzzle is taken from a book by "the puzzle king" Henry Ernest Dudeney called 536 Puzzles and Curious Problems , Souvenir Press 1968. See the MathsNet recommended books page . Dudeney (the name is pronounced to rhyme with "scrutiny") was born in Sussex, England in 1857. His father, John Dudeney, a shepherd, had taught himself mathematics, whilst tending his sheep on the downs above Lewes, 50 miles south of London. A self-taught mathematician also, Henry never went to college. His first book The Canterbury Puzzles was published in 1907. Others followed at intervals until his death in 1930. The third daily puzzle is courtesy of MathsMed . Visit the website for solutions. MathsNet's daily puzzle Dudeney's daily puzzle MathsMed's daily puzzles Go to MathsNet.com

54. AMUSEMENTS IN MATHEMATICS By HENRY DUDENEY From Pickabook Books Author, henry dudeney. Publisher, DOVER PUBLICATIONS INC. Edition AMUSEMENTS IN MATHEMATICS by henry dudeney view basket at Pickabook view basket. http://www.pickabook.co.uk/book_details/index2.php?isbn=0486204731&type=classifi

55. Pickabook - Audiobooks, Books, Over 230,000 Items In Stock - Basket - Book Shop dudeney, henry E. £10.00. £7.30. £7.30, Remove. (To alter the quantity of itemsordered please adjust the quantity required and press Enter ) http://www.pickabook.co.uk/cgi/basket.php?command=add&isbn=0486204731

56. Geometric Dissections On The Web henry dudeney s dissection of an equilateral triangle to a square, henry dudeney spentagon to a square, Walter Hoppe s hardwood puzzles on John http://www.cs.purdue.edu/homes/gnf/book/webdiss.html

Geometric dissections on the web A geometric dissection is a cutting of one or more figures into pieces that can be rearranged to form other figures. Dissections are often cast as puzzles, in which the object is to use as few pieces as possible. These geometrical puzzles fall under the category of mathematical recreations. Some dissections are relatively simple; others are deceptively simple, employing elegant approaches. A number of dissections can be found on the web: Animations of dissections Two attached squares to one, and Hexagons of areas 1, 12, and 13, from the webpages for my book. Serhiy Grabarchuk and his sons Peter and Serhiy, Jr., animate my dissection of heptagrams, Rick Mabry gets the triangle-to-square dissection to swing, A new set of animations by Alain Rousseau, Bennett's octagon to a square, ... Lindgren's dodecagon to a Latin cross, and an irregular triangle to a square, from Alain Rousseau's Cabri-powered webpages on dissections. dissection proofs of the Pythagorean theorem, on Bill Casselman's webpages. Henry Dudeney's dissection of an equilateral triangle to a square,

57. Haberdasher's Problem -- From MathWorld First proposed by dudeney (1907) and discussed in Gardner (1961, p. Gardner, M. Mathematical Games About henry Ernest dudeney, A Brilliant Creator of http://mathworld.wolfram.com/HaberdashersProblem.html

INDEX Algebra Applied Mathematics Calculus and Analysis Discrete Mathematics ... Alphabetical Index DESTINATIONS About MathWorld About the Author Headline News ... Random Entry CONTACT Contribute an Entry Send a Message to the Team MATHWORLD - IN PRINT Order book from Amazon Recreational Mathematics Dissection Haberdasher's Problem With three cuts, dissect an equilateral triangle into a square . First proposed by Dudeney (1907) and discussed in Gardner (1961, p. 34), Stewart (1987, p. 169), and Wells (1991, pp. 61-62). The solution can be hinged so that the four pieces collapse into either the triangle or the square . Two of the hinges bisect sides of the triangle, while the third hinge and the corner of the large piece on the base cut the base in the approximate ratio SEE ALSO: Dissection [Pages Linking Here] REFERENCES: Chuan, J. C. "Geometric Construction." http://www.math.ntnu.edu.tw/gc/chuan/gc.html Dudeney, H. E. Amusements in Mathematics. New York: Dover, p. 27, 1958. Gardner, M. "Mathematical Games: About Henry Ernest Dudeney, A Brilliant Creator of Puzzles." Sci. Amer.

58. Spider And Fly Problem -- From MathWorld Gardner, M. Mathematical Games About henry Ernest dudeney, A Brilliant Creatorof Puzzles. Sci. Amer. 198, 108112, Jun. 1958. http://mathworld.wolfram.com/SpiderandFlyProblem.html

INDEX Algebra Applied Mathematics Calculus and Analysis Discrete Mathematics ... Alphabetical Index DESTINATIONS About MathWorld About the Author Headline News ... Random Entry CONTACT Contribute an Entry Send a Message to the Team MATHWORLD - IN PRINT Order book from Amazon Calculus and Analysis Differential Geometry Geodesics ... Fernandez Spider and Fly Problem In a rectangular room (a cuboid ) with dimensions , a spider is located in the middle of one wall one foot away from the ceiling. A fly is in the middle of the opposite wall one foot away from the floor. If the fly remains stationary, what is the shortest total distance (i.e., the geodesic ) the spider must crawl along the walls, ceiling, and floor in order to capture the fly? The answer, , can be obtained by "flattening" the walls as illustrated above. Note that his distance is shorter than the the spider would have to travel if first crawling along the wall to the floor, then across the floor, then up one foot to get to the fly. The puzzle was originally posed in an English newspaper by Dudeney in 1903 (Gardner 1958). A twist to the problem can be obtained by a spider that suspends himself from strand of cobweb and thus takes a shortcut by not being forced to remain glued to a surface of the room. If the spider attaches a strand of cobweb to the wall at his starting position and lowers himself down to the floor (thus not crawling a single inch), he can then cross the length of the room by foot (

59. Product Listing dudeney, henry Ernest. Amusements in Mathematics. London Nelson, 1943 (reprint).vii, 258pp Illustrated. Hardback. (reprint). USED. http://www.booksulster.com/bookstore.cgi?exact_match=no&keywordsst=entertainment

60. A Passion For Mathematics Loyd s and dudeney s puzzles, Sherck s surface, magic squares, lituuses, 30 Diopantus, 258 doomsday equation, 127 dudeney, henry, 176, 177, 178, http://sprott.physics.wisc.edu/pickover/passion-math.html

Contact News! Books Home A Passion for Mathematics Numbers, Puzzles, Madness, Religion, and the Quest for Reality Clifford A. Pickover Mathematics is the hammer that shatters the ice of our unconscious. Numbers percolate like bubbles in the ocean of mathematics. The mathematician's job is to transport us to new seas, while deepening the waters and lengthening horizons. Math puzzles, factoids, quotations, trivia, formulas... Click here to see the book at Amazon.Com Read Chapter 1! Are you Fascinated by Numbers? A Smorgasbord of math puzzles, factoids, quotations, trivia, formulas, and much more... Are you fascinated by numbers and want to learn more? Does the vast world of math problems that humans have solved—and the ones we have yet to begin to comprehend—give you goose bumps? If so, this is the book for you. A Passion for Mathematics is an educational, entertaining trip through the curiosities of the math world, blending an eclectic mix of history, biography, philosophy, number theory, geometry, probability, huge numbers, and mind-bending problems into a delightfully compelling collection that is sure to please math buffs, students, and experienced mathematicians alike. In each chapter, Clifford Pickover provides factoids, anecdotes, definitions, quotations, mathematical art, and captivating challenges that range from fun, quirky puzzles to insanely difficult problems. You'll encounter mad mathematicians, strange number sequences, obstinate numbers, curious constants, magic squares, fractal geese, monkeys typing Hamlet, infinity, and much, much more.

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