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The Puzzling Adventures of Dr. Ecco

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The Puzzling Adventures of Dr. Ecco - Shasha, Dennis
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Join math detective in solving nearly 40 puzzles inspired by methods in computer science and mathematics. The Tower of Lego, Odd Doors Problem, Spies and Double Agents, many more. Solutions.

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The Puzzling Adventures of Dr. Ecco 1997, Dover Publications, Mineola, NY

ISBN-13: 9780486296159

Revised edition

Trade paperback

The Puzzling Adventures of Dr. Ecco 1988, W.H. Freeman & Company, New York, NY

ISBN-13: 9780716719786

Trade paperback

The Puzzling Adventures of Dr. Ecco 1988, W.H. Freeman & Company, New York, NY

ISBN-13: 9780716719588

Hardcover