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How to Solve a Rubik's Cube: The Easy Solution to The Rubik's Cube, A Beginner's Guide to Solving This Puzzle, Quick and Easily! (3x3 Cube) (Rubix) (2nd Edition)

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My Best Mathematical and Logic Puzzles

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Cracking Codes and Cryptograms For Dummies

IQ and Aptitude Tests: Assess Your Verbal Numerical and Spatial Reasoning Skills

Alan Turing: The Enigma: The Book That Inspired the Film The Imitation Game - Updated Edition

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What Is Mathematics?: An Elementary Approach to Ideas and Methods, Edition 2

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Codes and Ciphers - A History of Cryptography

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