Welcome to The Penguin Sudoku Challenge: with 1 sudoku puzzle for every day of the year 2 challenge you in every way on 3 different levels - beginner, moderate and fist-clenchingly tricky. Perfect 4 sharpening your brain and honing your logic, sudoku will give you a 5 star brain (if they don't hit you for 6). In 7th heaven when you complete them, you'll 8 giving up on any of these - but those 9 by nines won't complete themselves... Good luck!

Sudoku is a phenomenon all over the world. The addictive logic game, originated in the U.K. and popularized in Japan, has spread across the globe. The puzzles are now syndicated daily in newspapers in Australia, Germany, Scandinavia, Italy and Spain, and the mania for Sudoku has just reached us. Sudoku may, like the crossword puzzle, stay a lifetime or it may just be the meteor-like craze of 2005, but one thing is clear: The Penguin Books of Sudoku are the most accessible introduction to the puzzle. The rules to the puzzle, as with all great puzzles, are deceptively simple and easy to understand. It's a puzzle of reasoning and logic--no math is involved--but that's not to say that Sudoku won't stretch your brain a bit. Depending on one's skill and experience, a Sudoku puzzle can be solved in anywhere from ten minutes to a half-hour. Compiler Michael Mepham provides not only the game's background, but also an easy tutorial that will turn the novice into a Sudoku expert within minutes. Sudoku is the one puzzle you won't be able to put down--it's fun, challenging, and absolutely addictive!

** WINNER OF 'STOCKING FILLER OF THE YEAR AWARD' GUARDIAN ** Pit your wits against the people who cracked Enigma in the official puzzle book from Britain's secretive intelligence organisation, GCHQ. 'A fiendish work, as frustrating, divisive and annoying as it is deeply fulfilling: the true spirit of Christmas' Guardian 'Surely the trickiest puzzle book in years. Crack these fiendish problems and Trivial Pursuit should be a doddle' Daily Telegraph If 3=T, 4=S, 5=P, 6=H, 7=H ...what is 8? What is the next letter in the sequence: M, V, E, M, J, S, U, ? Which of the following words is the odd one out: CHAT, COMMENT, ELF, MANGER, PAIN, POUR? GCHQ is a top-secret intelligence and security agency which recruits some of the very brightest minds. Over the years, their codebreakers have helped keep our country safe, from the Bletchley Park breakthroughs of WWII to the modern-day threat of cyberattack. So it comes as no surprise that, even in their time off, the staff at GCHQ love a good puzzle. Whether they're recruiting new staff or challenging each other to the toughest Christmas quizzes and treasure hunts imaginable, puzzles are at the heart of what GCHQ does. Now they're opening up their archives of decades' worth of codes, puzzles and challenges for everyone to try. In this book you will find: - Tips on how to get into the mindset of a codebreaker - Puzzles ranging in difficulty from easy to brain-bending - A competition section where we search for Britain's smartest puzzler Good luck! 'Ideal for the crossword enthusiast' Daily Telegraph

240 puzzles to entertain your brain. Sudoku at its finest, give your brain a workout with 240 new and innovative puzzles in a variety levels so everyone can play. Solvers will find this book irresistible, with puzzles appropriate for all levels that build in difficulty. Test your skills as you work your way up to the hardest “Big Mind Challenge” selection. To help you, there’s an excellent introductory section with tips and techniques. They’re fun; they’re entertaining; they’re ABSOLUTELY ADDICTIVE!

The perfect gift for any sudoku puzzle master! The author of Sudoku Genius returns with 144 challenging new puzzles and a master class in the very most advanced and elegant solving methods. The logical beauty of Sudoku is laid bare in clear, easy-to-follow lessons that will take you down routes of thought that you might not have encountered before, including: • Swordfish • X-Wing • Double Channeling • Uniqueness Start with a Sudoku 101 refresher course in basic rules and techniques before moving up to methods formerly only whispered about in the halls of the mathematics department. By the end of this book, you will have mastered Sudoku. So what are you waiting for? “Logic has not been this fashionable since the Rubik’s Cube.”—ABCNews.com “The morning brain breakfast for millions.”—USA Today “Feel the rush and become addicted.”—Slate

Containing a year’s supply of Sudokus and some fantastic new Japanese puzzles, Penguin Sudoku 2006presents 365 brainteasers, ranging from easy to mind-bogglingly difficult. It provides a daily fix for the hardened Sudoku fan and sets an addictive challenge for novices.

Get your brain working with 200 grid-based logic puzzles from the Puzzle Baron! Filled with complex and fun brain teasers that range in difficulty, this book will put your mind into overdrive with hours of brain-challenging fun. Using the given backstory and list of clues, readers use pure logic to deduce the correct answer for each fiendishly tricky puzzle in Puzzle Baron's Logic Puzzles. Bring out your competitive side and check your stats against the average completion time, the record completion time, and the percentage of people who finish the puzzle. Check your work against the answer key and see how logical you really are! Perfect for adults or children, Puzzle Baron's Logic Puzzles is the ultimate challenge for those who love piecing clues and facts together. The brain is a wonderful thing to tease!