"The world's most difficult logic puzzle!"
"As you are walking along a road you come to a cross-roads, at which stand three inhabitants of the island who are unfamiliar with boolean logic and double negatives. One of them..."
:)
(That's a reference to a Raymond Smullyan puzzle that several people have linked to recently, with three gods, who speak an unknown language, and answer truthfully, falsely, or unpredictably, and you have to work out which is which with yes-no questions. I think now I remember enough similar puzzles to know how to do it. Except that I'm sure I remember discussing a specific instance -- probably very similar except for the language irrelevant complication -- on livejournal, probably with simont, but I can't find that discussion now.)
"As you are walking along a road you come to a cross-roads, at which stand three inhabitants of the island who are unfamiliar with boolean logic and double negatives. One of them..."
:)
(That's a reference to a Raymond Smullyan puzzle that several people have linked to recently, with three gods, who speak an unknown language, and answer truthfully, falsely, or unpredictably, and you have to work out which is which with yes-no questions. I think now I remember enough similar puzzles to know how to do it. Except that I'm sure I remember discussing a specific instance -- probably very similar except for the language irrelevant complication -- on livejournal, probably with simont, but I can't find that discussion now.)