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Brain Benders for Einsteins : Crosswords, Logic Puzzles, Word Games and More by Peter Ritmeester, George Bredehorn, Conceptis Conceptis Puzzles and David Phillips (2016, Trade Paperback) for sale online | eBay
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New magazine with Conceptis logic puzzles published in Turkey
Conceptis Expert Puzzles: Test Your Brains With the World's Toughest Logic Puzzles!