Collection: Logic Books
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Scientific American Head Games: 48 Confounding Word & Math Puzzles Knowledge Cards
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- $9.95
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Sudoku Original Book 2
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- $9.95
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KenKen for Coffee Break Will Shortz
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- $11.99
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- $11.99
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Animal Perplexors Level A
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- $12.99
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- $12.99
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Perplexors More Level D
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- $12.99
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- $12.99
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