This Demonstration illustrates Loyd's two Greek crosses to a square dissection. Samuel Loyd (1841–1911) created a multitude of chess and mathematical puzzles, including many dissections.
Sam Loyd (1841-1911) was the best known American puzzle composer. He published mathematical puzzle columns in variety of magazines. The best of his mathematical puzzles were collected into Loyd's Cyclopedia of Puzzles [Frederickson 2002, p.73].
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