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A simple understandng of the Sudoku X-Cycle technique to help those Sudoku enthusiast solve those more challenging Sudoku puzzles! After reading this you will understand how to recognize, construct, and utilize X-cycles for candidate (X) eliminations to help you solve the more challenging Sudoku puzzles!
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Google Android dominates the mobile market, and by targeting Android, your apps can run on most of the phones and tablets in the world. This new fourth edition of the #1 book for learning Android covers all modern Android versions from Android 4.1 through Android 5.0. Freshly added material covers new Android features such as Fragments and Google Play Services. Android is a platform you can't afford not to learn, and this book gets you started. Android is a software toolkit for mobile phones and tablets, created by Google. It's inside more than a billion devices, making Android the number one platform for application developers. Your own app could be running on all those devices! Getting started developing with Android is easy. You don't even need access to an Android phone, just a computer where you can install the Android SDK and the emulator that comes with it. Within minutes, Hello, Android gets you creating your first working application: Android's version of "Hello, World." From there, you'll build up a more substantial example: an Ultimate Tic-Tac-Toe game. By gradually adding features to the game, you'll learn about many aspects of Android programming, such as creating animated user interfaces, playing music and sound effects, building location-based services (including GPS and cell-tower triangulation), and accessing web services. You'll also learn how to publish your applications to the Google Play Store. This fourth edition of the bestselling Android classic has been revised for Android 4.1-4.3 (Jelly Bean), 4.4 (KitKat), and Android 5.0 (Lollipop). Topics have been streamlined and simplified based on reader feedback, and every page and example has been reviewed and updated for compatibility with the latest versions of Android. If you'd rather be coding than reading about coding, this book is for you.
Sudoku has become an addiction for millions--and that’s great, because mind games help keep our brains in good working order. But even though the rules are simple, many solvers need some help when cracking the more complicated grids. That support is here in abundance...enough to take to you into the realm of the Very Difficult and even the Fiendish. Using this attractive guide, solvers will smoothly progress through 52 stages, each with a self-testing and timed puzzle to monitor progress. Chock-full of tactics and tips, and drawing on strategies evolved by Sudoku experts from Japan, Europe, and the United States, this little book takes you to the top.
This book contains AI Escargot, the world famous sudoku puzzle which became the most difficult sudoku puzzle known in 2006. There are also several hints for solving AI Escargot in the shortest and most logical way. In addition, the book has 166 other sudoku puzzles in 11 categories. This makes it very convenient to find out your own level and to learn more! The author, Arto Inkala, is a puzzle creator and a doctor of science in the field of applied mathematics.
Praise for Thiagi's first Jolts! "If you facilitate group learning or change management, you won't want to miss this one!" Elaine Biech, author of Business of Consulting and Training for Dummies "A valuable addition to any trainer's bookshelf." Jean Barbazette, president, The Training Clinic, and author of The Art of Great Training Delivery and Managing the Training Function for Bottom-Line Results "As a Charter Member of BFT (Borrow from Thiagi) Club, I've been adapting Thiagi's training activities for decades. . . . Use the jolts from this book as a way to instantly and successfully engage your participants with your topic." Steve Sugar, author of Games That Teach In his popular first collection of games, Jolts!, renowned trainer and game experts Sivasailam "Thiagi" Thiagarajan (writing with Tracy Tagliati ) handed trainers well-designed games to engage and energize participants, clarify complex ideas, and solidify concepts in participants' minds. Now Thiagi zaps us again with More Jolts!, a collection of 50 brand-new, ready-to-use jolts that share new ways to capture participants' attention; smooth transitions; keep participants alert even after a break; tap the wisdom of the group; and spice up lectures with relevant activities. The book even identifies the jolts that can be seamlessly incorporated into your next e-learning project or interactive webinar. Brief, engaging, and easily adaptable to your purpose, More Jolts! gives you everything you need to pump up the energy and effectiveness of your training programs.
Packed with more than a hundred color illustrations and a wide variety of puzzles and brainteasers, Taking Sudoku Seriously uses this popular craze as the starting point for a fun-filled introduction to higher mathematics. How many Sudoku solution squares are there? What shapes other than three-by-three blocks can serve as acceptable Sudoku regions? What is the fewest number of starting clues a sound Sudoku puzzle can have? Does solving Sudoku require mathematics? Jason Rosenhouse and Laura Taalman show that answering these questions opens the door to a wealth of interesting mathematics. Indeed, they show that Sudoku puzzles and their variants are a gateway into mathematical thinking generally. Among many topics, the authors look at the notion of a Latin square--an object of long-standing interest to mathematicians--of which Sudoku squares are a special case; discuss how one finds interesting Sudoku puzzles; explore the connections between Sudoku, graph theory, and polynomials; and consider Sudoku extremes, including puzzles with the maximal number of vacant regions, with the minimal number of starting clues, and numerous others. The book concludes with a gallery of novel Sudoku variations--just pure solving fun! Most of the puzzles are original to this volume, and all solutions to the puzzles appear in the back of the book or in the text itself. A math book and a puzzle book, Taking Sudoku Seriously will change the way readers look at Sudoku and mathematics, serving both as an introduction to mathematics for puzzle fans and as an exploration of the intricacies of Sudoku for mathematics buffs.
With every puzzle requiring upper-level strategies, this collection packs even more of a punch than Beyond Black Belt Sudoku. You'll encounter common advanced techniques with curious-sounding names like Sashimi X-Wing, Swordfish, and Gordonian Polygon, as well as some tricky new things, including Grouped X-Cycle and 3D Medusa. The puzzles grow increasingly difficult as the book goes along, from "pretty darn hard" to "excruciating."
With this comprehensive beginner's guide, you will learn how to solve Sudoku puzzles. This no-nonsense approach will not only teach you the basics but also essential Sudoku game theory along with basic puzzle solving strategies. You will learn the seven most used puzzle solving techniques needed for solving all Sudoku puzzles. A step-by-step example is presented with each step precisely detailed. Focused practice exercises will help you achieve puzzle solving mastery. User guides for free Sudoku software used on iPhones, Android devices, and PC platforms are included. A section giving details on using Snyder notation along with a software only approach is discussed. An additional how-to guide for solving advanced puzzles and a list of Internet tutorials is included for reference. As a bonus, this book also includes a total of 62 easy, medium, and hard puzzles with solutions.
“Nothing short of a masterpiece.” —NPR Books A New York Times Bestseller and a Washington Post Notable Book of the Year In the most ambitious one-volume American history in decades, award-winning historian Jill Lepore offers a magisterial account of the origins and rise of a divided nation. Widely hailed for its “sweeping, sobering account of the American past” (New York Times Book Review), Jill Lepore’s one-volume history of America places truth itself—a devotion to facts, proof, and evidence—at the center of the nation’s history. The American experiment rests on three ideas—“these truths,” Jefferson called them—political equality, natural rights, and the sovereignty of the people. But has the nation, and democracy itself, delivered on that promise? These Truths tells this uniquely American story, beginning in 1492, asking whether the course of events over more than five centuries has proven the nation’s truths, or belied them. To answer that question, Lepore wrestles with the state of American politics, the legacy of slavery, the persistence of inequality, and the nature of technological change. “A nation born in contradiction… will fight, forever, over the meaning of its history,” Lepore writes, but engaging in that struggle by studying the past is part of the work of citizenship. With These Truths, Lepore has produced a book that will shape our view of American history for decades to come.