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Sujiken(TM) is inspired by Sudoku, the amazingly popular and distracting logic puzzle. A Sujiken(TM) puzzle has a triangular grid of cells containing digits from 1 to 9. You must place a digit in each of the remaining empty cells to determine a unique solution that obeys three simple rules. As with Sudoku, you must ensure no digit is repeated within a row, column or one of the three 3x3 larger squares. Now, however, the diagonal matters. No digit can be repeated along any diagonal and no digit can be repeated in one of the three large triangle regions enclosed with thick borders. Sujiken(TM) is like Sudoku, with a twist. These puzzles offer an entertaining twist on the basic Sudoku concept. You will never look at a Sudoku Puzzle in the same way after solving Sujiken(TM) puzzles.

Step into the mind of the greatest physicist of all time! Try to think like Einstein as you come to grips with 120 enigmas, quizzes, and tests of logic based on his greatest work: the theory of relativity, E=mc2, Brownian Motion, zero-point gravity, and many other groundbreaking ideas, all woven into some of the best puzzles ever. With so many incredible discoveries to draw on, plus a selection of Einstein’s most illuminating quotes and over 200 illustrations, this lavishly produced book will open the door to a range of stunning scientific concepts. As the great man once said: “You have to learn the rules of the game. And then you have to play better than anyone else”—a challenge that all puzzle enthusiasts will find irresistible.

The world’s greatest detective returns once more . . . to test your powers of deduction! Can you solve all the cases in this remarkable collection?   Written in the style of Sir Arthur Conan Doyle's great stories, and told in the voice of Dr. Watson, this book offers an enlightening and diverting selection of puzzles—more than 200 of them. They range from elementary riddles to fiendish brainbusters, from simple riddles to full-out mysteries. Fans must follow threads of logic through convoluted labyrinths, unravel wordknots, figure out identities, solve a murder by looking at an illustration, and much more. Can you live up to Holmes’s exacting standards? Solvers will find tips and tricks for “deducing” the Sherlock way, along with all answers and explanations.

Speed Sudoku - 15 minute Sudoku Puzzles The 15 Minute Speed Sudoku Book is a specially created collection of 175 hard sudoku puzzle grids. Each puzzle has between 17 and 29 clues and should take the sudoku enthusiast 12-18 minutes to complete. As this is a speed Sudoku book, the challenge is to try and complete each puzzle in under 15 minutes. If you can beat the clock, try the 5 and 10 minute Speed Sudoku Puzzle Books in the series. You are guaranteed to have many more hours of Sudoku solving satisfaction. The BUYSUDOKUBOOKS.COM guarantee. Often you find sudoku puzzles that have more than one solution. This can waste a lot of time and drain a fair amount of ones sanity while solving a puzzle. Have no fear! To ensure minimum frustration, every puzzle in this book has been carefully checked and is guaranteed to have only one solution.

A book with 12 variants of Samurai Sudoku puzzles! Directly from the author of The Washington Post's and The Washington Express' weekly Samurai Sudoku puzzles, this book delivers these puzzles: 12 classic Samurai Sudoku 12 JIGSAW Samurai Sudoku 12 Diagonal Samurai X Sudoku 12 Consecutive Samurai Sudoku 12 Non-Consecutive Samurai Sudoku 10 Hyper (Windoku) Samurai Sudoku 5 Odd-Even Samurai Sudoku 5 Greater/Less Than Samurai Sudoku 5 Samurai Sudoku Straights 5 Samurai Sudoku 8x8 5 OUTSIDE Samurai Sudoku 5 Killer Samurai Sudoku That's a total of 100 Samurai puzzles. And the difficulty levels have been raised a bit, so you will not find any easy puzzles in this book!

Are you tough enough? Take on this collection of 200 difficult sudoku puzzles and find out!Includes: -200 hard puzzles-Perfect portable size-Edited by Will ShortzAlso in the series: -Will Shortz Presents Daring Sudoku -Will Shortz Presents Dangerous Sudoku

Provide Hands-On Practice Comparing And Ordering Unit Fractions Make a difficult math concept concrete with these six sets of equivalent fraction puzzles, each with its own frame. Great for working with small groups. 6 sets of sturdy * laminated chipboard fraction bars (each set has 51 pieces * ranging from 1A12 to 1 * in a frame) * Size of frame: 8" by 8" * Size of bars: "H * length varies * 1 storage box 164230 Equivalent Fraction Bars equivalent fourth quarter half halves compare numerator denominator unit fractions fraction strips fraction bar fractions fraction tiles tiles math math manipulatives half quarter thirds hands-on hands on math skills math skill support skill support manipulatives puzzles math puzzles hands on math montessori montessori themed hand2mind school home homeschool 164230 Equivalent Fraction Bars equivalent fourth quarter half halves compare numerator denominator unit fractions fraction strips fraction bar fractions fraction tiles tiles math math manipulatives half quarter thirds hands-on hands on math skills math skill support skill support manipulatives puzzles math puzzles hands on math montessori montessori themed hand2mind school home homeschool

Dust jacket notes: "This marvelously diverse collection of 359 puzzles ranges from simple 'catch' riddles to difficult problems but contains none that require a knowledge of advanced mathematics. It is lavishly illustrated with clear diagrams and amusing sketches, and the puzzles are answered in the back of the book. Kordemsky often clothes his problems in charming stories that provide the American reader with valuable insights into contemporary Russian life and customs. Since it was first published in the Soviet Union in 1956, The Moscow Puzzles has gone through at least eight revisions to become the classic puzzle book in the history of Russian recreational mathematics. It has sold more than a million copies in Russian and Ukrainian editions and has been translated into many other languages, including French, German, and Japanese. This is the first English edition. The book will appeal to all those interested in solving mathematical puzzles, as well as to teachers, students of mathem

Challenge your mind and your eyes with this collection of 84 crossword puzzles! Themes include places, animals, food, movies, pop stars, and more!Puzzles range from easy to difficult so there's something for every skill level.Complete answer key is found at the back of the book.Spiral-bound192 pages Whether you're a beginning puzzler or a seasoned pro, Brain Games Crossword Puzzles has the perfect puzzles to keep you entertained as you exercise your brain!  

Our lateral thinking experts, Sloan and MacHale, have created the biggest selection of thought-provoking puzzles under the sun also some of the most difficult. These are no exception: each challenging mental teaser presents a mini-scenario with a secret twist that’s truly tough to figure out. The only way to find the answers is to get rid of any preconceptions, use your wildest imagination, and think way outside the box.Solving has never been such infuriating fun! 

The fourth edition of Anatomy & Physiology Student Workbook continues to be one of the most popular guides on the market today, offering an enjoyable and highly effective way to learn this difficult subject. Designed for those pursuing careers in the Healthcare Field such as Occupational Therapists, Nurses or Holistic Therapists, this hands on guide is a fantastic way to blow away those cob webs and get the brain working! There are 2,000 quizzes and puzzles in total, divided into 13 chapters. Each of the 13 chapters represents a separate system of the body and contains a variety of question types along with a comprehensive answer grid at the end of each chapter. You will find: Multiple Choice Questions, True/False Quizzes, Fill in the Blanks, Matching Answers with Questions, Short Answer Quizzes, Crosswords Puzzles, Word Search Puzzles, These quizzes are designed to be repeated as many times as it takes until you become so familiar with the answers that you no longer have to look at your text books. Don't let anatomy and physiology beat you, it is a tough subject but it can be mastered. Using this guide will help you do exactly that. You will become the anatomy and physiology expert you never thought you'd be!

The American Sign Language Handshape Puzzle Book features 54 different puzzles to help students learn, review, and strengthen their signing vocabulary. Inspired by the bestselling dictionary, this unique workbook offers a variety of puzzles at three different levels — easy, medium, and difficult. Author Linda Lascelle Hillebrand provides a concise explanation of the basic handshapes used in American Sign Language (ASL), then invites readers to have fun while solving all sorts of sign puzzles.Users can practice sign identification with Crossword and Word Search puzzles that have signs as clues rather than words. Easy puzzles show as few as six signs while advanced puzzles contain as many as 30 signs each. Some of the crossword puzzles provide spaces both across and down for the multiple meanings that many signs can represent.Handshape Order puzzles require users to identify the handshape of the sign in an illustration, then list the sign’s meaning in English. Match puzzles also challenge readers to find corresponding signs for English glosses. Solutions to It Doesn’t Belong and Sign Description puzzles depend upon knowing the parameters of ASL signs—handshape, orientation, location, and movement—to deduce which word in a list doesn’t belong, and to write the English word for the described signs. The American Sign Language Handshape Puzzle Book is a new, different, and entertaining way to practice ASL that students of all ages are sure to enjoy.

Here are the world's most famous , most difficult,and most political crossword puzzles, and the people who make up such teasers.

Are you TOUGH enough? Take on this collection of 150 devilishly difficult crossword puzzles! FEATURES: - 150 challenging puzzles - Perfect portable size - Edited by puzzlemaster Will Shortz

NEED A SECRET SANTA GIFT? HERE’S THE PERFECT GIFT FOR YOURSELF OR SOMEONE ELSE! This volume delivers hours and hours of fun. Entertain yourself and power up your brain while solving a variety of easy, moderate, and difficult puzzles. This Christmas themed activity book includes ● Word Searches ● Anagrams ● Word Fit Puzzles ● Scrambled Words ● Sudoku ● Math Puzzles ● Mazes ● Christmas Song Challenge ● Word Fit Puzzles ● Cryptograms ● Pictograms ● Christmas Movie Challenge ● Calcudoku ● Christmas Riddles ● Crossword Puzzles and more. Created by an educator and author this book will satisfy young and old. Work alone or play with a friend. NEED A STOCKING STUFFER? There's something to satisfy everyone in the family. Be sure to check out other volumes for different varieties of fun. ★★★★★ Volumes 1 - 10 available: Check out Volume 5, the Spanish Student edition, Volume 6 for Number Nerds, Volume 8, the Bible Theme edition and Volume 9 with over 300 Puzzles!

Prepare to be addicted!Join the thousands who've discovered Hidato, the puzzle that's easy to learn, difficult to master.These puzzles are solved without guesswork or mathematics. Only careful thought and determination are required to solve these pure logic challenges.Featured in Japan's #1 puzzle magazine!

Fiendishly difficult puzzles included in gripping adventure stories

Following in the footsteps of Sudoku and other popular Japanese logic puzzles comes the world's next great puzzle addiction--Hidato!Like Sudoku, Hidato features easy-to-follow rules combined with increasingly difficult puzzles. The goal is to fill in the grid with consecutive numbers that connect horizontally, vertically or diagonally. They can be solved using 100% logic. No guesswork is needed, and no mathematics are required!Hidato was recently featured in Japan's leading puzzle magazine--Gakken Mook.

BEFORE PURCHASING, please download free samples under freebies on kookypuzzlelovers.com.These puzzles includes: 15x15 grid: over 70 words/numbers per puzzles: 1000 total puzzles: answers in back: size 8.5" x 11" x 1.3" thick: some puzzles have a starter letter/number: difficulty level is easy to difficult. PLEASE NOTE: There are no words/numbers over 8 letters. This puzzle book is NOT large print. This puzzle book is NOT spiral bound.

Crossword puzzles are a great way to enjoy some relaxation.This book features more than 85 crossword puzzles, each spread across two pages, with answers at the back, just in case.All puzzles are simple to solve with little frustration--no difficult or expert puzzles that might prove taxing are included.The spiral binding allows the book to lay flat, making it easy to write in and solve the puzzles.