-->THE TANGRAM is one of the oldest types of dissection puzzles in the world that originated from China. It traditionally requires the participant to arrange seven pieces (or ´´tans´´) into a shape just by looking at the given silhouette.LEARN WHILE PLAYING The puzzles in this unique book are fresh, innovative and compelling. The puzzle pieces are building units for puzzles that boost mental dexterity with a variety of challenges from various fields of recreational mathematics. Come on and play with symmetry puzzles, cover-up puzzles and self-similarity puzzles to increase your skill and mental acuity!NEW PUZZLE DESIGNS To add variety and challenge, some of the puzzles may not use all seven pieces of the Tangram set, while others may use pieces from two or more sets.The authors utilize a creative twist in this collection that is different from classic Tangram puzzles: Most of the puzzles do not allow connections between the pieces unless they share a common edge. With this slight change to the rules, an entirely new universe of Tangram puzzles and challenges is unleashed to delight the puzzle solver!PROVIDES HOURS OF FUN The majority of the puzzles in this book are new and original. They range in difficulty to suit various levels of puzzle enthusiasts. Some selections are based upon famous classic puzzles while others are modified to stimulate and captivate the puzzlist as they have done for more than a thousand years! -->Printable Tangram Set (40 KB) -->Contents: PrefaceThanksIntroduction to TangramGlossary of TermsHow to Use this BookTangram Set PuzzlesIncomplete Tangram Set PuzzlesMultiple-Set Tangram PuzzlesBeyond the TangramAppendixReferences --> -->Readership: Puzzle and riddle lovers. -->Keywords:Puzzle;Tangram;Geometry;Symmetry;Recreational MathematicsReview:Key Features:Many new, unique and original puzzlesA huge collection of flat puzzles and activities for all ages and levelsBoth educational and fun; highly challenging puzzles
Would GCHQ recruit you? Pit your wits against the people who cracked Enigma in the official puzzle book from Britain´s secretive intelligence organisation . . . -------------------------------- Odd word out The themes in the following words are identical, but totally different! Which is the odd word out in each case? a) ANGLE, BRING, CLAMP, DIRTY, EXACT, FIELD, GRASS, HEART, IMAGE, JAUNT b) ABBEY, BURST, COURT, DRINK, ENJOY, FOUND, GIANT, HARMS, IDIOT, JUMPY Identify Me My first is in a combine harvester, but not in a ploughshare. My second is in a pigsty, but not in a cowshed. My third does not exist. My whole is in a farmyard, but not in a jungle. Identify me. -------------------------------- 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! ´Fiendish . . . as frustrating, divisive and annoying as it is deeply fulfilling: the true spirit of Christmas´ The Guardian ´Ideal for the crossword enthusiast´ Daily Telegraph Looking for more ways to test yourself? The GCHQ Puzzle Book 2, a new collection of head-scratching, mind-boggling and brain-bending puzzles is out now!
`Dear God, what is it like in your funny little brains? It must be so boring.´ Can you pit your wits against the best and the wisest? Through these 200 puzzles and challenges, you´ll be able to elevate your powers of deduction, detection and general brilliance. From codes and sequences to perceptual and logic problems, there are puzzles for all levels, from beginner to expert. With explanations of how Sherlock (and hopefully you) arrived at the solutions, this official puzzle book is your chance to learn how to think like Sherlock. Step inside his mind palace, decipher Moriarty´s taunting clues and find out if you´re a match for the brains of 221b Baker Street.