Mathematical Puzzles: A Connoisseur's Collection
Collected over several years by Peter Winkler, of Bell Labs, dozens of elegant, intriguing challenges are presented in Mathematical Puzzles. The answers are easy to explain, but without this book, devilishly hard to find. Creative reasoning is the key to these puzzles. No involved computation or higher mathematics is necessary, but your ability to construct a mathematical proof will be severly tested--even if you are a professional mathematician. For the truly adventurous, there is even a chapter on unsolved puzzles.
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LibraryThing ReviewUser Review - fpagan - LibraryThing
Scads of math puzzles that have short specifications and don't seem to require much specialized knowledge. But they are ridiculously difficult, and so are most of the solution descriptions. A very humbling little book. Read full review
Absolutely first-rate puzzles. I highly recommend this book.