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From the PublisherThis amazingly captivating book collects over one hundred original brain teasers conceived and tastefully designed by the Grabarchuk family … The book will be enjoyed by all puzzle lovers ...
—Zentralblatt MATH, February 2009
This collection of puzzles will provide many interesting, fun and enjoyable moments to anyone who solves them. It can be recommended to all readers who like solving brainteasers.
—European Mathematical Society Newsletter, September 2008
The collection of over one hundred puzzles will spark out of the box thinking and lead to 'aha!' moments that even Martin Gardner would appreciate.
—MAA Reviews, July 2008
NPR's Next Week's Challenge
This brainteaser comes from Serhiy Grabarchuk, Peter Grabarchuk and Serhiy Grabarchuk Jr., a family of puzzle makers in Ukraine. A calculator displays a five-digit number. The first four digits are 8735. These digits form a logical sequence. What is the fifth number in the series?
—NPR, June 2008