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DescriptionThe Magic Dice Cup tangram paradox.svg
English: The Magic Dice Cup. A tangram paradox from Sam Loyd’s Eighth Book of Tan (1903). Each of these cups was composed using the same seven geometric shapes. But the first cup is whole, and the others contain vacancies of different sizes.
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{{Information |Description ={{en|1=The Magic Dice Cup. A tangram paradox from Sam Loyd’s Eighth Book of Tan (1903). Each of these cups was composed using the same seven geometric shapes. But the first cup is whole, and the others contain vacancies...