Inside the pages, you will discover some amazing puzzles that you may not have encountered before, such as: - Doppelblock - Makaro - Numbrix. The book comes complete with the solutions at the back, so you'll always know if you got it right, or can find the solution if you are really stuck for the answer. It's the perfect antidote for rainy days, boring evenings when there's nothing on TV, or for those long commutes to and from work, where you just want to think about something else.