Pentominoes Colorful plastic pentomino puzzle pieces in a storage container.
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Rush Hour A really cute game that'll provide a brain workout for both kids and adults.
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Games Lots of fun every month, good scavenger hunts and contests.
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Amazing "Aha!" Puzzles A collection of lateral thinking puzzles that will drive you crazy!
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Contest Problem Book Great math problems from the nation's best high school competitions.
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