Some Thoughts about the Hardest Logic Puzzle Ever

Author: Roberts T.S.

Source: Journal of Philosophical Logic, Volume 30, Number 6, December 2001 , pp. 609-612(4)

Publisher: Springer

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Abstract:

“The Hardest Logic Puzzle Ever” was first described by the late George Boolos in the Spring 1996 issue of the Harvard Review of Philosophy. Although not dissimilar in appearance from many other simpler puzzles involving gods (or tribesmen) who always tell the truth or always lie, this puzzle has several features that make the solution far from trivial. This paper examines the puzzle and describes a simpler solution than that originally proposed by Boolos.

Keywords: Boolos; logic puzzle; Smullyan; true/false

Language: English

Document Type: Regular paper

Affiliations: 1: Faculty of Informatics and Communication Central Queensland University, Bundaberg Queensland 4670, Australia (e-mail: t.roberts@cqu.edu.au)

Publication date: 2001-12-01