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The Lady or the Tiger?
What is the Name of This Book?
"The most original, most profound, and most humorous collection of recreational logic and math problems ever written." -- Martin Gardner, Scientific American"The value of the book …
Chess Mysteries of Sherlock Holmes
Join the master sleuth as he and Dr. Watson examine interrupted chess matches at clubs and country homes, examining the pieces' current positions to identify previous moves. Rather …
Satan, Cantor & Infinity
A clear-headed command of logic can make the mind powerful enough to outmaneuver the devil himself, according to these intriguing stories. More than 200 puzzles, problems, and …
Alice in Puzzle-Land
Characters from Wonderland and Through the Looking-Glass populate these 88 puzzles involving word play, logic and metalogic, and philosophical paradoxes. The charmingly illustrated …