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  1. Deviously Difficult Mind-Bending Puzzles

    Free Download Ivan Moscovich, "Deviously Difficult Mind-Bending Puzzles" English | ISBN: 1402718101 | 2005 | 128 pages | PDF | 7 MB Play supergames for the super-smart. These mind-blowing, brain-bending puzzles use a deviously tricky mix of geometry and combinatronics (the different ways objects...
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