The next in our new series of only the toughest puzzles for serious sudoku solvers! Do you have what it takes? These 200 challenging sudoku puzzles from Will Shortz will keep your mind sharp! Features: - 200 hard puzzles - Big grids for easy solving - Introduction by legendary Puzzlemaster Will Shortz

***The best intelligent puzzle book on the market*** Fiendish fun! - The Times Can YOU solve the Puzzle for Today?Tackle the conundrums that have been frustrating and confounding the nation, with the first official book from Radio 4's Today programme. Put your deciphering skills and mental agility to the test with over 280 cryptic, numerical and linguistic brainteasers from Britain's best-loved radio programme, set by the world's ultimate puzzle masters. So, challenge your grey matter and hone your reasoning and logic skills with the brainteasers that get the nation's (and many world leaders') synapses firing every morning at 6.50am. With a foreword by Sarah Sands, editor of the Today programme. Introductions to each chapter by Tom Feildon, the BBC Science Editor. Chapters: Never Aired Puzzles Common-sense Conundrums Flags, Capitals & Nations Maths & Language Further Maths BBC Today Presenters' Puzzles Celebrity Setters Christmas Crackers Want to take on the hardest, most fiendish puzzles out there created by the greatest minds around the world? If The Ordnance Survey Puzzle Book, The GCHQ Puzzle Book and Tim Peake's Astronaut Selection Test Book were no match for you, pit your wit against TODAY.

Bring on the cacti with this 500 piece 2-sided puzzle from Galison, featuring photographs by the talented Edyta Szyszlo. - Package: 11.5 x 8.5 x 1.5" - 500 double-sided pieces, one side glossy and one side matte - Complete puzzle: 24 x 18" - Includes insert with information about the artist and image

Love Sudoku? Can't resist a crossword? Try out Kurosu, the latest Daily Mail puzzle. Highly addictive and utterly engaging, this is the fun alternative to Sudoku! * There are only two rules: 1: Fill in each space with either a nought or a cross so there are no more than two consecutive noughts or crosses in any row or column. Important note: diagonals don't count. 2: Each row and column must contain three noughts and three crosses. * Sounds easy, doesn't it? Think again! This book might look simple, but it's deceptively hard - it's the ultimate test of logic. From easy and medium level, to the highest difficulty rated, Daily Mail Kurosu Volume 1 will offer hours of puzzling fun. Perfect for both single players and groups!

Challenge yourself at home with word and number puzzles Specially compiled to provide the most deadly Su Doku challenge, this is the only volume for Su Doku enthusiasts who need a puzzle that really tests their mettle. Prepare yourself for the toughest Su Doku challenge there is. These diabolically difficult Ultimate Killer Su Doku puzzles will really put your brainpower to the test as you 'warm up' with the 100 Deadly Killer puzzles before steeling yourself to take on the 100 Extra Deadly Su Dokus. Are you ready for the challenge? Not for the faint-hearted. The puzzles use the same 9x9 grid as a regular Su Doku, but have an extra mathematical element that multiplies the challenge. The aim is not only to complete every row, column and cube so that it contains the digits 1 to 9, but also to make sure that the outlined sections, called cages, add up to the number given in each cage. Warning: Not suitable for amateur puzzlers!

The object of sudoku is simple, the solution however, not so easy to come by. But you don't need to be a maths expert to love sudoku - armed only with the numbers 1-9 and a good dose of logic, challenge yourself with a brand new collection of the nation's favourite number puzzle.

This second collection of interesting mathematical puzzles continues the tribute to Martin Gardner, who has provided us with original puzzles and puzzling stories ever since he created and produced the "Mathematical Games" column in Scientific American. The international community of puzzle enthusiasts has gathered once again to celebrate Martin Gardner's continued contribution and, most fittingly, has done so in kind, by providing new challenges to our inquiring minds. We proudly present this collection to the mathemagicians of the world for their enjoyment, as a playful provocation.

This handy spiralbound format can be laid flat. For solvers who have dared to come this far, congratulations! Your reward is the roughest, toughest kakuros ever put on paper. Good luck - you'll need it! Kakuro is a puzzle type in which sums are given and solvers must deduce the numbers in the individual boxes.

For many decades, Martin Gardner, the Grand Master of mathematical puzzles, has provided the tools and projects to furnish our all-too-sluggish minds with an athletic workout. Gardner's problems foster an agility of the mind as they entertain. This volume presents a new collection of problems and puzzles not previously published in book form. Martin Gardner has dedicated it to "all the underpaid teachers of mathematics everywhere, who love their subject and are able to communicate that love to their students."

Challenge yourself at home with word and number puzzles 200 brand new compelling and addictive word and number puzzles from The Times. Appearing daily in the newspaper, Codeword is the cracking alternative to Su Doku and Crosswords. The concept is simple: each number represents a letter, so, starting with the solved letters, use your logic and vocabulary to reveal more letters, form words, and then crack the code! The most difficult puzzles for top solvers contain no solved letters so you need to employ all your logical strategies to crack those. The Codeword series is so popular because you don't need any prior knowledge, unlike a crossword. You can just pick up a pen and get puzzling. It steadily increases your vocabulary, as the difficulty slowly grows as you progress through the book, and even though you'll be working your brain, it's the perfect way to unwind.

Challenge your brain with these enjoyable puzzles. Specially compiled to provide the most deadly Su Doku challenge, this is the only volume for Su Doku enthusiasts who need a puzzle that really tests their mettle. Prepare yourself for the toughest Su Doku challenge there is. These diabolically difficult Ultimate Killer Su Doku puzzles will really put your brainpower to the test as you 'warm up' with the 100 Deadly Killer puzzles before steeling yourself to take on the 100 Extra Deadly Su Dokus. Are you ready for the challenge? Not for the faint-hearted. The puzzles use the same 9x9 grid as a regular Su Doku, but have an extra mathematical element that multiplies the challenge. The aim is not only to complete every row, column and cube so that it contains the digits 1 to 9, but also to make sure that the outlined sections, called cages, add up to the number given in each cage. Warning: Not suitable for amateur puzzlers!

Hex Strategy is the first book to offer a comprehensive look at the game of Hex, from its history and mathematical underpinnings to discussions of advanced playing techniques. This is first and foremost a book on strategy aimed at providing sufficient knowledge to play the game at any level desired. Numerous examples illustrate an algorithmic approach to the game. Hex Strategy is a book for board game enthusiasts, recreational mathematicians and programmers, or simply those who enjoy games and puzzles.

Need more than your daily Wordle fix? Stay sharp between games and discover... EXPERT TIPS TO BOOST YOUR STATS HOW TO SET AND SHARE YOUR OWN WORDLES 150 CHALLENGES INCLUDING WORD LADDERS, ALPHABET SUDOKU, LOGICAL LETTERS AND MANY MORE! The perfect gift for any word puzzle enthusiast.

This completely revised edition of Winslow's bestselling Quiz Book contains more than 2,000 questions categorised into 40 stimulating subjects. It is aimed at adolescents and adults alike and features questions that are all realistically within the scope of the average person. Designed for those who use quizzes as a group activity, the questions are grouped into three ability levels with a layout that enables the organiser to rapidly locate the required topic. Its topics cover areas such as cookery, animals, sport, home, spellings, history and general knowledge.

'With Yet More Mind-Bending Puzzles and Fascinating Facts' Paul Williams has produced the third volume in his stimulating series. The book is a mine of interesting and surprising information, packed with entertaining snippets and devious brainteasers. The puzzles and facts are presented in sections labelled from Easy to Fiendish, designed to interest and challenge readers of all ages. The author tests his readers mental agility, presenting the curious and the contradictory, and tackling myths and misconceptions. From Pobbles to pub names, from puns to a Polish Christmas, with a sprinkling of poetry, the sections begin with the light-hearted and easy to grasp, then progress to the logic of Lewis Carroll, the philosophy of Wittgenstein, and a selection of mind-bending mathematical proofs.

Sherlock Holmes may be the world's greatest detective, but he needs your help. Join the renowned sleuth and his assistant Dr Watson as they travel across Victorian England, encountering mysterious crimes along the way. Using just Watson's illustrated case notes, can you unravel the twists and turns of each remarkable story? After reading ten original cases, you will need to solve baffling questions such as: * Who murdered the High Court judge, and why? * How did the Baker Street Irregulars know the warehouse robbery was an inside job? * And did the stonemason really die in a climbing accident? Are you up to Sherlock's challenge?

Spanning the years 1930 to 1989, this is a highly practical and enjoyable puzzle book. It covers events, people, entertainment and everyday life and is designed to encourage group participation to recall and discuss their own personal experiences. It is fully adaptable according to the needs and abilities of the individuals within the group.

The Intergalactic Flora 1000 Piece Foil Puzzle from Galison features colorfully illustrated celestial flowers that appear to be floating in space, with foiled-stamped glimmering stars behind them. This intriguing and beautiful art is by Malaysian artist, EUREKARTStudio. Galison puzzles are packaged in matte-finish sturdy boxes, perfect for gifting, reuse, and storage. An insert of the full puzzle image is also included. * 1000 Pieces, Ribbon Cut * Box: 11.25 x 8.25 x 2", 286 x 210 x 51mm * Puzzle: 27 x 20", 686 x 508 mm * Includes Puzzle Insert with Puzzle Image * Puzzle greyboard contains 90% recycled paper. Packaging contains 70% recycled paper and is made responsibly from FSC-certified material. Printed with nontoxic inks.

All the fun of Portico's bestselling Strangest series, now in quiz form!

Test your rugby knowledge with this handy quiz book, packed with fun and challenging quiz questions based around the weirdest events from more than a century of rugby history.

Quiz categories include: Famous Firsts and Lasts Trophy Cabinet Unexpected Interruptions Men and Women Behaving Badly Political Connections The Numbers Game Family Ties Never Mind the Weather.

Whether you're testing your friends, practising for pub quizzes or just reading it in an armchair, this book will take your rugby knowledge to a whole new level.