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It was given as a gift. Haven't had complete feedback yet. It seems very good.
It opens flat and the problems come with large images and print, so that it can be read together with other people. Anyone would feel out of place among its assortment of toys, clowns and cowboys. Yes, it's illustrated, colorful and printed on large glossy sheets of paper, but the illustrations are just awful. The puzzles are rated from 1 to 10 in difficulty, so there's something for every skill level.I would've probably found this optimally challenging when I was about 10-15 or so.One of my major complaints is that puzzles aren't sorted by difficulty: there should be separate sections for easy, medium and hard puzzles for example.1000 puzzles is probably also too much. (just look at the cover). This book seems to be targeted to families, also judging from the reviews here. If the problems would take 3 minutes on average, that's 3000 minutes, which is 50 hours. While it's not much more than an average console or PC RPG, I doubt most have even gotten close to finishing the book.
= 1-(120/720) = 1-.1667 =.8333Playthink 656: No mention is made of Ivan until solutionOnce again I still think it is a great book to keep lying on the coffee table. At least in my edition, you cannot solve the simple substitution.Playthink 649: Solution states probability of at least one man getting hat back is.632.
I use it for idle moments as a healthy way to exercise my mind. co 2006, First PrintingSaw the graphics and layout of this book and had to get it.
You can double check me (I would - if I wasn't already me):Playthink 648: The key for the cipher is incomplete. I don't regret buying the book, but have done about 40 or so puzzles and have found what I believe to be a few errors.
Even with the errors it is still a good source for amusement.I will list the errors I found and update if I find more (maybe). I calculated 1-(5./6).
Mistakes just show you shouldn't blindly believe any book (unless you know the writer, editor, and printer to be perfect beings).
We bought this book for my father-in-law who loves puzzles and brain teasers. He has found this book to be challenging and fun.
This book is fun and colorful, full of brain-boggling games that are fit for all ages (there are games with difference levels of difficulty). These games deal with math, science, physics, and other random games that are just recreational and thought provoking.
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