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LEARN SHORTCUTS Many of the puzzles will seem as though they will take longer than two minutes to solve, but ... there are shortcuts if you can find t...
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A NEW TWIST ON A POPULAR PUZZLE CUBE! Invented by Piet Hein, the Soma cube is one of the most famous mechanical puzzles in the world. The traditional ...
'This is a marvellous book. The diversity of possible puzzles that can be given with these very limited resources, which are basically some paper and ...