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Are you Ivan Moscovich, author of the books below?
The Big Book of Brain Games by Ivan Moscovich The Little Book of Big Brain Games by Ivan Moscovich 1,000 Playthinks by Ivan Moscovich The Puzzle Universe by Ivan Moscovich The Monty Hall Problem & Other Puzzles by Ivan Moscovich The Hinged Square & Other Puzzles by Ivan Moscovich The Shoelace Problem & Other Puzzles by Ivan Moscovich Magic Cylinder Book by Ivan Moscovich Brainmatics by Ivan Moscovich Fiendishly Difficult Math Puzzles by Ivan Moscovich


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