Ups & Downs, Professor Backwards, Digit Demolition & Spy Series
Beginning with IDisk-OO on the cover O an ingenious game of profession O here are 25 fiendish puzzles that challenge your ability to think in numbers.
- Uncover the hidden pattern of IWhatIs the Connection?O Accept the 4,500 year-old dare of a Lo-Shu Magic Square. Get a tasted of factorials, toy with symmetry and geometry. Even step inside the brain of renowned mathematician Karl Friedrich Gauss.
- Bring a pencil, but remember O (1) you donIt have to be a whiz to play, because (2) the most important skills youIll need are curiosity and an open mind. (Solutions and explanations are provided of course!)
Ivan Moscovich is an internationally known and acclaimed inventor, puzzler, and artist. He has designed award-winning toys for Mattel, Kenner, Childcraft, Ravensburger, Binary Arts, and other companies, and is the author of the MindGames series and other books. Mr. Moscovich lives in the Netherlands.