Push your nerve and logic to the absolute limit with this third collection of The Times Killer Su Doku.[...]
The fourth installment of the successful Times Killer Su Doku series. Adding the challenge of arithmetic and taking Su Doku to a new deadly level of difficulty.[...]
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[...]
This fifth 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 challen[...]
A new collection of previously unpublished Fiendish Su Doku puzzles with the added bonus of 30 Super Fiendish puzzles.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A collection of 200 previously unpublished Difficult Su Doku puzzles of the highest quality from the Su Doku suppliers to The Times newspaper.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[...]
A new collection of previously unpublished Fiendish Su Doku puzzles with the added bonus of 30 Super Fiendish puzzles.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[...]
This sixth 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 challen[...]
For those who like to live dangerously and push beyond their mental comfort zone, steel yourself for The Times' toughest Killer collection yet. Prepare for the extreme mental challenge of 100 Deadly-level Killer puzzles, including, for the first time ever, 20 Extra Deadly, to really test your limits[...]