Sudoku and number puzzles

Train your brain with these fiendishly difficult puzzles, the perfect companion for anyone wanting to keep their mind busy'Fiendishly tricky' Daily MailWith their first bestselling book, The GCHQ Puzzle Book, the UK's intelligence and security experts tested us with puzzles, codes and real-life entrance tests from their archives.

Modus Fortis represents a Khunian shift in Sudoku strategy.

Sangaku returns with more addictive number puzzles.

This book is like 210 individual puzzles while at the same time it is one very large puzzle.

"e;David Bodycombe has one of the most devious minds I've ever encountered"e; - Victoria Coren Mitchell, author and host of Only Connect"e;The only quiz book where it's mildly disappointing when you know an answer because you don't get the satisfaction of working it out"e; - James Harkin, creator and host of No Such Thing As A FishFrom hit YouTuber Tom Scott and Only Connect question editor David Bodycombe comes a new type of quiz book - but can you outsmart the questions?

Sharpen your mind to beat the smartest brains in Britain with the original official GCHQ puzzle bookWould GCHQ recruit you?

The famous mathematical cat Penrose takes us on a trip though puzzleland, while sharing fascinating and challenging puzzles in this uniquely designed mini book.

So you think you've got problems?

Este libro invita a ejercitar el razonamiento, evocar aprendizajes adquiridos y adquirir otros nuevos a través de recursos lúdicos.

These puzzles arerapidly becoming a favorite of all computer users.

'Britain's King of Puzzles' - Sun A collection of restful puzzles and brain-training activities designed to relieve stress andinspire creativity, for your Kindle or other ebook reader.

Zwölf Monate, 12 Apostel, 12 Geschworene - was ist so besonders an dieser Zahl?

Matt Parker lebt Mathematik.

Egal, ob Geometrie oder Bruchrechnung, ob Algebra oder Sto­chastik – diese Textaufgaben machen Spaß und liefern ganz nebenbei jede Menge Wissen über Politik und Popkultur:Wie oft kann man «Last Christmas» hören, ohne durch­zudrehen?

With ever-rising ground, water and atmospheric pollution, every other day one hears the name of a new disease.

With ever-rising ground, water and atmospheric pollution, every other day one hears the name of a new disease.

Challenge yourself to the next level of Sudoku.

Challenge yourself to the next level of Sudoku.

Challenge yourself to the next level of Sudoku.

Challenge yourself to the next level of Sudoku.

Challenge yourself to the next level of Sudoku.

Challenge yourself to the next level of Sudoku.

Actualmente es habitual ver a personas resolviendo sudokus en cualquier parte: en transportes publicos, en bares, en playas, en parques.

Britain's favourite newspaper presents 4000 quiz questions and answers for anyone thirsty for trivia.

'BRILLIANTLY CLEAR AND CAPTIVATING PROSE' STEPHEN FRYA WATERSTONES BOOK OF YEAR 2023An award-winning mathematician explores the maths behind the games we love and why we love to play them.

For the mastermind who has what it takes to solve the tricky conundrums from Britain's first and greatest puzzle master.

This is a journal about a trip to the edges of the mathematical universe.

Sie möchten Ihr Kind sinnvoll beschäftigen und gleichzeitig spielerisch fördern?

A fiendish collection of over 100 super-tricky brainteasers from puzzle-maestros Rob Eastaway and David Wells.

After a short discussion of Sudoku and presentation of tools in Section 1, this book gives a review of standard techniques or strategies to solve these puzzles in Section 2.

From the mathematics of mazes, to cones with a twist, and the amazing sphericon - and how to make one - Ian Stewart is back with more mathematical stories and puzzles that are as quirky as they are fascinating, and each from the cutting edge of the world of mathematics.

From the mathematics of mazes, to cones with a twist, and the amazing sphericon - and how to make one - Ian Stewart is back with more mathematical stories and puzzles that are as quirky as they are fascinating, and each from the cutting edge of the world of mathematics.

'Fiendishly clever and highly addictive.

If you like an intellectual challenge, then you might enjoy Sudoku.

This book will help you to both understand your agoraphobia and learn techniques so that you can unlock the door to reclaiming your freedom.

Pit your wits against the brilliant minds of Scotland Yard, from the bestselling author of Bletchley Park Brainteasers, Sinclair McKay.

Digitales XXL RätselbuchSofort losrätseln, ohne Stift, ohne Papier.

Data meets literature in this ';enlightening' (The Wall Street Journal), ';brilliant' (The Boston Globe), ';Nate Silver-esque' (O, The Oprah Magazine) look at what the numbers have to say about our favorite authors and their masterpieces.