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Multiplayer Puzzle Games
Paper Puzzles by Sam Loyd
The Impossible Dovetail Puzzles by Wil Strijbos
The Penrose Triangle
What does "Enigma" mean?
Dealing with Dementia
The Speed Cubers - Film Review
The Science of Slinkies
Nob Yoshigahara (1936-2004)
The Pyraminx
Traffic Trouble - Rush Hour!
Mechanical Puzzles
Science Toys