Site:
www.scientificamerican.com/blog/post.cfm<br/>?id=three-puzzles-from-martin-gardner-1-<br/>2010-05-22

Observations: Three puzzles from Martin Gardner (1914-2010)

News of Martin Gardner's death began circulating on Saturday night. For those of you who are unfamiliar with his work, here's a taste of the kinds of puzzles he was famous for bringing to the world. Of course, he did much more: 15 years ago... More
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