![Professor Higgins's Problem Collection](/uploads/profile_image/4a0/35c1ae52-82ef-4b00-a723-1cd639e0a4a0.jpg?m=1522323442)
Professor Higgins's Problem Collection
Book
What can you do with your maths? You can use it to thoroughly understand all manner of things that...
![Kids’n’Code](/uploads/profile_image/4bb/14d2716b-3f1f-4ab1-b38b-7c33f04634bb.jpg?m=1522361065)
Kids’n’Code
Education and Games
App
Solve puzzles, control robots and learn basic concepts and principles of programming. With...
![Strimko Gold](/uploads/profile_image/42e/fb1d7e05-8ae5-4a3e-8067-77e7586ec42e.jpg?m=1522323512)
Strimko Gold
Games
App
STRIMKO™, the popular web-based logical puzzle game, comes to the iPhone / iPod touch (compatible...
![Can You Solve My Problems?: A Casebook of Ingenious, Perplexing and Totally Satisfying Puzzles](/uploads/profile_image/219/62555b6d-f257-4eb0-b9f1-5c29f664c219.jpg?m=1522357808)
Can You Solve My Problems?: A Casebook of Ingenious, Perplexing and Totally Satisfying Puzzles
Book
Are you smarter than a Singaporean ten-year-old? Can you beat Sherlock Holmes? If you think the...
![The Moscow Puzzles](/uploads/profile_image/fee/c3ef9644-89c9-4b96-a737-7e70d6d5dfee.jpg?m=1522360698)
The Moscow Puzzles
Book
A non-stop train leaves Moscow for Leningrad at 60 miles per hour. Another train leaves Leningrad...
![Cryptogram Word Puzzles](/uploads/profile_image/7bc/012e974b-7234-4fa2-832f-1c76c03097bc.jpg?m=1522360890)
Cryptogram Word Puzzles
Games
App
The quality app for serious cryptogram / cryptoquip solvers with no ads or nags. Designed from...
![The Times: KenKen: The New Brain-training Puzzle Phenomenon: Bk. 1](/uploads/profile_image/df1/7f8c4b01-604f-4236-ab2b-d60f50236df1.jpg?m=1522336055)
The Times: KenKen: The New Brain-training Puzzle Phenomenon: Bk. 1
Book
KenKen is the brilliant successor to Su Doku that's taken Japan by storm selling over one million...
![The Daily Mail: All New Quick Crosswords 1](/uploads/profile_image/b3b/52759b6a-a3eb-484f-bef7-2c1e40b57b3b.jpg?m=1522325164)
The Daily Mail: All New Quick Crosswords 1
Book
A new format and design heralds a new collection of cryptic crosswords. Challenge yourself and test...
![The Daily Mail: All New Quick Crosswords 2](/uploads/profile_image/3da/8a138787-2a5d-48fa-a2a7-00ee3b6d93da.jpg?m=1522342090)
The Daily Mail: All New Quick Crosswords 2
Book
Part of the newly relaunched Daily Mail Crossword Collection. Challenge yourself and test your logic...