Time-travel back 100 years to match wits against the fiendishly clever Professor Hoffman and his amazing collection of ‘the best of the best’ from the golden age of puzzles. Some are mathematical, some are mechanical. Others are visual or logical. Still others are verbal conundrums, enigmas, and more. But the toughest one’s refuse to be caged in a single category, you will have to use all the corners of your brain to solve them! All the puzzles and their solutions come to you illustrated with fun drawings that dare you to grab your pencil and dive in. If you get stumped, don’t feel bad: the Old Professor’s been doing it to others since 1893!
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