Sudoku og talopgaver

Strange happenstances and chance encounters have puzzled us for centuries. This fun and fascinating book takes readers on a journey through the mathematics behind coincidences both famous and never-before-examined. From peculiar patterns in geometry and calculus to the famous Waring Problem, and other astonishing numerical curiosities, The Call of Coincidence begins by examining the mathematical properties that underpin everything there is. Next, author Owen O'Shea - along with fictional guides Charlie Chance and the enigmatic Dr. Moogle - reveals surprising connections and correlations throughout history, including numerical coincidences behind the reign of King Richard III, the sinking of the SS Edmund Fitzgerald, the 1996 FIFA World Cup, and much, much more. By investigating the properties, puzzles, and problems within, you will gain a newfound appreciation for the beautiful simplicity of mathematics in its many forms.Featuring surprising trivia gems alongside serious questions like why there is something rather than nothing, readers will be enriched by this exploration of remarkable number coincidences and the mathematics that make them possible - and probable.,

This wonderful collection of sudokus is packed with more than 450 puzzles, making it a great treat for all fans of the popular number-placement challenge. - IMPROVE YOUR SOLVING SKILL: Each puzzle is graded, from beginner to expert, so you can enjoy the satisfaction of seeing your skill improve as you work through the levels. - EXERCISE YOUR BRAIN: Give your mind a great workout as you find where each missing number fits. - REDUCE STRESS: Feel your stress melt away as you focus on these satisfying puzzles.

Sudokus are the ever-popular number placements puzzles that give your brain a workout. Spanning across a number of difficulties, this bumper collection of more than 900 puzzles is sure to keep you entertained for hours. - EXERCISE YOUR BRAIN: Give your mind a great workout as you pit your wits against these number-placement teasers. - REDUCE STRESS: Feel your stress melt away as you focus on these satisfying puzzles. - OVER 900 PUZZLES AND SOLUTIONS: This bumper book of puzzles will provide hours of entertainment.

Sudoku Puzzle Book: Over 500 Puzzles for Adults & Kids Including Easy, Medium, Hard, Expert & ExtremeThis is the perfect book for you or a friend. Invest in your mind by working these puzzles daily, or give this book to a friend, colleague, or relative as a thoughtful gift for a birthday, holiday, or just because! With multiple difficulty levels, there's something for everyone. Sudoku masters can wrestle with the Expert puzzles, while the newcomer can learn from the simply-written instructions and then begin tackling the Easy ones.Get this book NOW to get access to:•Intructions•Easy Puzzles•Medium Puzzles•Hard Puzzles•Expert Puzzles•Answer KeyThere is an answer key for each and every puzzle so that you can check your completed puzzles or give yourself a hint when stumped. Never feel confused with this comprehensive and accurate answer key.Anyone who loves Sudoku will love this book!

Challenge your brain with this collection of sudoku puzzles!Includes 134 sudoku puzzles from levels 4 and 5.Sudoku grids are large, making them easy to read and fill out.Complete answer key is found at the back of the book.Spiral binding, 160 pages. Perfect for the sudoku enthusiast in your life!

Sudokus are the ever-popular number placements puzzles that give your brain a workout. Presented in a large-print easy-to-read type, and over a number of difficulties, this collection is suitable for anyone from beginner to expert! - LARGE PRINT: Put your reading glasses away! This large-print book allows you to puzzle away without straining your eyes. - EXERCISE YOUR BRAIN: Give your mind a great workout as you pit your wits against these number-placement teasers.- REDUCE STRESS: Feel your stress melt away as you focus on these satisfying puzzles.

Brain Games A Puzzle a Day is a throwback to newspaper puzzle sections of yesteryear!A fun shuffle of puzzles that features up to 4 puzzles on a single page.The 366-puzzle count lends itself well to use as a daily routine starter or nighttime wind down activity.Puzzle varieties include: crosswords, acrostics, word jigsaws, cryptograms, sudoku, word searches, anagrams, and more!Spiral binding allows the book to lie flat while in use.192 pages

Here's a real treat for all fans of the number-placement puzzle sudoku: a collection of more than 500 grids arranged by level of difficulty. Sudokus are fun and satisfying to solve, and give our brains a good workout too. This elegantly designed collection will satisfy even the most ardent enthusiast, and the beginner can enjoy the pleasure of working up through the levels as their solving skills improve. - MORE THAN 500 PUZZLES AND SOLUTIONS This bumper book of puzzles will provide many hours of entertainment. - EXERCISE YOUR BRAIN These number placement puzzles will be sure to give your brain a stimulating workout. - IMPROVE YOUR SKILL Enjoy the satisfaction of seeing your ability to solve the puzzles improve as you work through the five levels from beginner to expert.

To keep your brain active and healthy, you need to exercise it. This book of fun and challenging puzzles provides a great source of mental exercise.Includes a variety of over 180 puzzles to keep you engaged and strengthen your brain.Word games that boost your vocabularyand challenge your creative problem-solving skills. Number puzzles that exercise logic and reasoning. Puzzles that require reasoning and multi-step planning. Answers can be found in the back of the book. Spiral bound, 192 pages.

Take a puzzle break! These classic sudoku puzzles are challenging but easy enough to solve in about ten minutes. Includes over 200 sudoku puzzles. The convenient size make this book easy to carry.Spiral bound so the book lies flat while puzzling.Answer key in the back of the book. 256 pages.

Ready for a challenge? Then take a dive into these puzzles ranging from hard to grueling in Brain Games Sudoku Challenge.More than 200 difficult sudoku puzzles to challenge your brain.Stretch your logic muscles.Spiral binding allows the book to lay flat for more comfortable puzzling.Answer key in the back.256 pages

Brain Games Extreme Sudoku presents a set of puzzles intended for all the seasoned pros out there.More than 160 sudoku puzzles.All puzzles are exclusively from our most difficult skill level.Spiral binding makes this book easy to carry, solve, and check your answers.192 pages.

Puzzlers of all ages will love these challenging sudoku puzzles. Sudoku is a great way to build logic and problem-solving skills.Over 200 sudoku puzzles. Five difficulty levels: Easy, Medium, Hard, Difficult, and Expert. Answer key at the back of the book. Spiral bound book lies flat.256 pages.

From the original publisher of daily Sudokus in the United States, USA TODAY presents 200 all-new Sudoku puzzle challenges in five difficulty levels. USA TODAY Sudoku Super Challenge 3 is a collection featuring 200 Sudoku puzzles in five difficulty levels from USA TODAY--the nation's newspaper. Features include: Introductory how-to section 200 9 x 9 Sudoku puzzles Comprehensive answer key

- Large print sudoku book for adults - Halloween edition: pumpkins.- Contains 180 puzzles in 3 difficulty levels: 60 easy, 60 medium and 60 hard puzzles- 1 puzzle per page makes it easy to read and has plenty of space for notes- A surprise puzzle at the end of the book- Funny Halloween pumpkins to cheer you up

- Large print sudoku book for adults - Halloween edition: witches.- Contains 180 puzzles in 3 difficulty levels: 60 easy, 60 medium and 60 hard puzzles- 1 puzzle per page makes it easy to read and has plenty of space for notes- A surprise puzzle at the end of the book- Frightful witches to cheer you up

- Large print sudoku book for adults - Halloween edition: ghosts.- Contains 180 puzzles in 3 difficulty levels: 60 easy, 60 medium and 60 hard puzzles- 1 puzzle per page makes it easy to read and has plenty of space for notes- A surprise puzzle at the end of the book- Scary ghosts to cheer you up

Are you ready for a new challenge? Try Markrah Letter-Row Puzzles. Part Sudoku, part word game Markrah Letter-Row Puzzles Letters and Words Book 1 tests your puzzle solving skills with a fun new idea. Given a list of words with a shared pattern of letters and words, the solver enters all the words into a spiral row of letters. Words start in shaded cells.Words can be spelled forwards or backwards. Words can overlap by one or more letters. Words must fit with the letters that are already entered.

The more than 200 large-print sudoku puzzles in this book are fun and easy to read!Large Print Sudoku Volume 1 contains more than 200 puzzles that will give your brain a workout while being easy on the eyes. In each puzzle, you'll need to arrange the numbers 1 through 9 into each of the nine rows, columns, and 3 x 3 boxes using logic and your puzzle-solving skills. The numbers in these puzzles are larger than those found in other sudoku books, which means less eye strain and a more relaxing experience. Puzzles are a relaxing and enjoyable activity for people of all ages.They're also great for the brain. Boost mental acuity and stay sharp with puzzles.Great for road trips and staycations.

Put your brain through it's paces with this great value Brain Gym book of 1500 Medium Sudoku puzzles, perfect for the more experienced Sudoku solver, or anyone who wants to have tons of puzzles to keep them busy. With only 4 puzzles per page there is plenty of room for small notations.We exercise our bodies but our brains need a workout too! Sudoku helps keep your brain healthy and functioning well.Challenge yourself to finish all the puzzles without cheating!Solutions to all the puzzles are at the end of the book. 506 pages, 4 puzzles per page. 8.5 by 11".