Studying the man considered to be the most brilliant theoretical physicist since Albert Einstein, this biography of Stephen Hawking brings readers closer to one of the greatest living scientific geniuses. While obviously a brilliant scientific mind, Hawking has also succeeded in revealing some of th[...]

Killer Su Doku poses an even greater challenge than the Fiendish Su Doku puzzles.Here are 100 previously unpublished puzzles for hard-core Su Doku addicts.[...]

Beware: The Times Killer Su Doku gets about as close as possible to the label 'unputdownable'. In Book 2, the challenge continues with the emphasis on the tougher and more deadly puzzles. Prepare to be rattled.[...]

For anyone who loves the challenge of Su Doku but manages to solve them within minutes, you can now enjoy the extended mental workout and ultimate endurance test of The Times Samurai Su Doku Book 2.[...]

The most addictive puzzle craze since the first crosswords were published, the ninth installment of Times Su Doku feeds the desire of puzzlers for yet more challenges. This collection of the wordless puzzle will put readers' logic to the ultimate test, and improve mental agility, 20 Mild puzzles for[...]

A new collection of previously unpublished Fiendish Su Doku puzzles with the added bonus of 30 Super Fiendish puzzles. Perfect for the advanced solver in need of a constant supply of ultra-difficult puzzles. Guaranteed to provide hours of absorbing, brain-stretching entertainment.[...]

A new collection of previously unpublished Fiendish Su Doku puzzles with the added bonus of 30 Super Fiendish puzzles. Perfect for the advanced solver in need of a constant supply of ultra-difficult puzzles. Guaranteed to provide hours of absorbing, brain-stretching entertainment. The puzzles in thi[...]

A collection of 200 previously unpublished Difficult Su Doku puzzles of the highest quality from the Su Doku suppliers to The Times newspaper. Perfect for the intermediate Su Doku solver in need of a constant supply of challenging puzzles, this book is guaranteed to provide hours of absorbing, brain[...]

For those who like to live dangerously and push beyond their mental comfort zone, steel yourself for the second book in The Times' toughest Killer series yet. Prepare for the extreme mental challenge of 100 Deadly-level Killer puzzles, including, exclusive to The Times, 20 Extra Deadly, to really te[...]

This seventh and toughest addition to the successful Times Killer Su Doku series will test your skills to the limit, adding the challenge of arithmetic and taking Su Doku to a new and even deadlier level of difficulty. The puzzles use the same 9x9 grid as Su Doku but with an added mathematical chall[...]

This is the fifth title in the Fiendish series - the latest volume of quality previously unpublished puzzles from the puzzle providers to the Times. You don't need to be a mathematical genius to solve the puzzles in this, the fifth collection of Fiendishly difficult puzzles, it is simply a question [...]

Brace yourself! This book contains some of the most difficult Su Doku puzzles ever created on earth, puzzles so hard they have never been set down in print before.[...]