Two books bound as one.

    Puzzlists need only an elementary knowledge of math and a will to resist looking up the answer before trying to solve a problem.Written in a light and witty style, Entertaining Mathematical Puzzles is a mixture of old and new riddles, grouped into sections that cover a variety of mathematical topics: money, speed, plane and solid geometry, probability, topology, tricky puzzles, and more. The probability section, for example, points out that everything we do, everything that happens around us, obeys the laws of probability; geometry puzzles test our ability to think pictorially and often, in more than one dimension; while topology, among the "youngest and rowdiest branches of modern geometry," offers a glimpse into a strange dimension where properties remain unchanged, no matter how a figure is twisted, stretched, or compressed.Clear and concise comments at the beginning of each section explain the nature and importance of the math needed to solve each puzzle. A carefully explained solution follows each problem. In many cases, all that is needed to solve a puzzle is the ability to think logically and clearly, to be "on the alert for surprising, off-beat angles...that strange hidden factor that everyone else had overlooked."Fully illustrated, this engaging collection will appeal to parents and children, amateur mathematicians, scientists, and students alike, and may, as the author writes, make the reader "want to study the subject in earnest" and explains "some of the inviting paths that wind away from the problems into lusher areas of the mathematical jungle." 65 black-and-white illustrations.

    But there are so many complicated variations -- how can you memorize them all?You can't -- and you don't have to! If you understand the basic goals of the opening you're playing, you will know which moves fit logically into its overall scheme. This classic, best-selling volume, now completely reset in modern algebraic notation, explains everything you need to know to play the opening sensibly and successfully.Reuben Fine, an International Grandmaster, is one of the world's top players and a leading theoretician of chess. He is the author of over half a dozen books, including the definitive Basic Chess Endings.

    You are familiar with the major openings. You have played over some of the famous grandmaster tournament games. You ahve read a few books on the strategy and theory of chess.Yet your game does not improve. Why? How many times, having played the opening according to the "book" and having attained a satisfactory position, do you ask your self, "What do I do now?"Winning Chess answers that question. The proper use of combination play is the secret of winning chess. Winning Chess not only tells you, but graphically and forcefully shows you, how to recognize the elements of winning tactical combinations and how to apply them to actual games positions. It teaches you how to look for the distinguishing characteristics and repetitive patterns that announce the presence of a potential combination.It shows you how to exploit these patterns to achieve such winning tactica as The Pin, The Knight Fork, The Double Attack, The Discovered Check, The Skewer and a dozen others. Each tactical theme is explained, demonstrated, analyzed and illustrated from the simplest form to the more complex situations that arise in master games. Each chapter constitutes a unique lesson in attacking play, and each can be applied directly to your own game.If you learn these lessons well, you will be well on the road to playing winning chess.

    Among the highlights are Kasparov vs. Topalov; Kasparov vs. Wijk aan Zee; the super-computer Deep Blue's historic first win over Kasparov; Boris Spassky's "James Bond" Mating Combination; and Bobby Fischer's "Game of the Century." Study these games and learn about defense and counterattack, logical opening play, endgame strategy, psychological warfare, and how great players think.

    In the four main sections of the book, Stein tells the stories of the mathematical thinkers who discerned some of the most fundamental aspects of our universe. From their successes and failures, delusions, and even duels, the trajectories of their innovations—and their impact on society—are traced in this fascinating narrative. Quantum mechanics, space-time, chaos theory and the workings of complex systems, and the impossibility of a "perfect" democracy are all here. Stein's book is both mind-bending and practical, as he explains the best way for a salesman to plan a trip, examines why any thought you could have is imbedded in the number π , and—perhaps most importantly—answers one of the modern world's toughest questions: why the garage can never get your car repaired on time.Friendly, entertaining, and fun, How Math Explains the World is the first book by one of California's most popular math teachers, a veteran of both "math for poets" and Princeton's Institute for Advanced Studies. And it's perfect for any reader wanting to know how math makes both science and the world tick.

    Originally published: New York: Sterling Publishing Co., Inc., 1955.

    Twenty years later, it remains a bestseller in the field and one of the best practical training manuals available.

    This workbook may be utilizes with or without Silman's earlier book "How to Reassess Your Chess". Illustrations.

    This book reveals the most exhilarating oddities from Professor Stewart's legendary cabinet.Inside, you will find hidden gems of logic, geometry, and probability-like how to extract a cherry from a cocktail glass (harder than you think), a pop-up dodecahedron, and the real reason why you can't divide anything by zero. Scattered among these are keys to Fermat's last theorem, the Poincaréonjecture, chaos theory, and the P=NP problem (you'll win a million dollars if you solve it). You never know what enigmas you'll find in the Stewart cabinet, but they're sure to be clever, mind-expanding, and delightfully fun.

    There are classical logic puzzles, lateral thinking puzzles, “who am I?” riddles, mathematical brain teasers, word ladders, ditloids, and a large selection of illustrated pen and paper, coins, cups, and toothpicks puzzles (please view the preview of this book for a full listing). This is the first time a collection of such breadth has been compiled and formatted especially for Kindle devices. The puzzles have been carefully organized into 25 chapters, and each question is hyperlinked to its solution, to provide utmost ease of navigation. Alongside the world’s most famous riddles, are some lesser known gems, and some brand new puzzles, in print here for the first time. Our aim was to create a definitive compendium of riddles and puzzles to bring enjoyment to people of all ages. We hope you will enjoy unraveling them as much as we enjoyed creating and editing them. Here are a handful of sample riddles: Outside the Box Riddles: You need to divide a round birthday cake into eight pieces, so each of your guests will have something to eat. How can you do this by making only three straight cuts with a knife, and without moving any of the pieces? The king’s two bodyguards developed an ingenious method for assuring the king’s safety. With the king standing between them, they would face in opposite directions; one looking to the west and the other to the east, but at the same time, and without the use of any reflective surfaces, they would both be able to observe the king clearly. How was this possible? Pure Logic Riddles: There are two glasses. One contains water, and the other contains an equal quantity of wine. A teaspoon of water is removed and mixed into the glass of wine. A teaspoon of the wine-water mixture is then removed and mixed into the glass of water. Which of the mixtures is now purer? The sorcerer’s tower was enchanted in such a way that it was able to build itself. Bricks, slates, tiles, and panes of glass, all flew to it of their own accord and danced into position. The tower doubled in size every day until after 100 days it reached a height that provided fine views over the entire realm. How many days did the tower take to reach half its full height? Lateral Thinking Puzzles: Five men are going to church. It starts to rain, and four of the men begin to run. When they arrive at the church, the four men who ran are soaking wet, whereas the fifth man, who didn’t run, is completely dry. How is this possible? Think Twice Riddles: If you are running a race, and you overtake the person in second place, what place do you move into? Word Riddles: SOS is read the same forwards, backwards, and even upside-down. What four-letter word also shares these properties? Number Puzzlers: How many letters are there in the answer to this question? You have an opportunity to buy a hen. In fact, you have been offered a choice between two quite remarkable animals. One of the hens produces six dozen dozen eggs per month, and the other produces a half dozen dozen. Admittedly, both seem impressive. Does it matter which hen you choose? Traditional Poetic Riddles: Five creatures cross a field of snow; But leave a single track behind Whose loops and bows are soon, I know, Unravelled by the mind. Coins, Cups, and Toothpicks Illustrated Riddles: A coin is dropped into an empty bottle and a cork is then inserted in the neck of the bottle. How is it possible to remove the coin without taking out the cork, or breaking the bottle?

    Winning Chess Openings shows players how to do both. In Yasser Seirawan's entertaining, easy-to-follow style, they are shown formations that can be used with other White or Black pieces.Winning Chess Openings explains how to:*Build a safe house for a king*Estimate losses of ten moves or fewer*Utilise the elements: time, force, space, and pawn structure*Plan strategy based on time-tested opening principles of play*Employ a defence for Black against any White opening*Apply an opening for White used by World ChampionsWinning Chess Openings will help readers develop a solid understanding of opening principles that can be applied to every game they play--without having to memorize a dizzying array of tedious and lengthy opening lines.

    It provides the perfect opportunity for understanding the potential power of each chess piece in every chess situation—from opening move to checkmate. But the endgame is often viewed as an inaccessible area of play by most players whose experience is limited to watching championship games. Now, Pandolfini changes all of that. With one endgame example per page and covering every endgame category in order of difficulty, Paldolfini walks you through all the basic concepts including: --square of the pawn --critical squares --corresponding squares --other new approaches not mentioned in classic references Featuring a glossary of concepts and diagrams throughout, this volume is the not-so-secret password to a whole new realm of chess play and entertainment for the average player.

    His Incompleteness Theorem turned not only mathematics but also the whole world of science and philosophy on its head. Equally legendary were Gö's eccentricities, his close friendship with Albert Einstein, and his paranoid fear of germs that eventually led to his death from self-starvation. Now, in the first popular biography of this strange and brilliant thinker, John Casti and Werner DePauli bring the legend to life. After describing his childhood in the Moravian capital of Brno, the authors trace the arc of Gö's remarkable career, from the famed Vienna Circle, where philosophers and scientists debated notions of truth, to the Institute for Advanced Study in Princeton, New Jersey, where he lived and worked until his death in 1978. In the process, they shed light on Gö's contributions to mathematics, philosophy, computer science, artificial intelligence -- even cosmology -- in an entertaining and accessible way.

    Includes such gems as:? There are 42 eyes in a deck of cards, and 42 dots on a pair of dice ? In order to fill in a map so that neighboring regions never get the same color, one never needs more than four colors ? Hells Angels use the number 81 in their insignia because the initials H and A are the eighth and first numbers in the alphabet respectively