+1 +3122402300133201200322702300111303100231502200611603100
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A@http://www.tanzzle.com/loyd.html
Sam Loyd's unsolved patterns 

The eighth book of Tan - 700 Tangrams by Sam Loyd
with an introduction and solutions by Peter Van Note
Dover publications Inc., New York 1968
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page 26 TANGRAM MYSTERIES
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A pyramid
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Una piramide