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RIP Raymond Smullyan, Puzzle-Creating Logician | Boing Boing
What Is the Name of This Book? by Raymond M. Smullyan | Goodreads
How to Solve the Hardest Logic Puzzle Ever - Nautilus
Raymond Smullyan - Wikipedia
How to Solve the World's Hardest Logic Puzzle - Nautilus
The Lady or the Tiger?: And Other Logic Puzzles (Oxford paperbacks) - Smullyan, Raymond M.: 9780192861368 - AbeBooks
To Mock a Mockingbird: and Other Logic Puzzles by Raymond Smullyan (April 14 2004): aa: Amazon.com: Books
The hardest logic puzzle ever | plus.maths.org
The world's hardest logic puzzle ever!
Riddle of the Week #43: Knights and Knaves, Part 1
Alice in Puzzle-Land — Raymond Smullyan | Bennettarium
Logical Labyrinths - 1st Edition - Raymond Smullyan - Routledge Book
Games for Your Mind | Princeton University Press
The Entertainer - Scientific American
The Lady or the Tiger?: and Other Logic Puzzles by Raymond M. Smullyan, Paperback | Barnes & Noble®
To Mock a Mockingbird: and Other Logic Puzzles by Raymond Smullyan (April 14 2004): aa: Amazon.com: Books
Raymond Smullyan, logician – obituary
Knights and Knaves etc. - Logic Puzzles from Raymond Smullyan books | Teaching Resources
To Mock a Mockingbird: And Other Logic Puzzles - Smullyan, Raymond M.: 9780192860958 - AbeBooks
Logic Puzzles From The Tonight Show, 1982 - YouTube
What Is the Name of This Book?: The Riddle of Dracula and Other Logical Puzzles by Raymond M. Smullyan, Paperback | Barnes & Noble®
Enigma De Scherezade, El - By Raymond Smullyan (paperback) : Target
Lady or the Tiger? And Other Logic Puzzles Including a Mathematical Novel That Features Godel's Great Discovery: Smullyan, Raymond M.: 9780812921175: Amazon.com: Books