A somewhat easier liar/truther puzzle

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Discussion Overview

The discussion revolves around a logic puzzle involving a fork in the road where a traveler encounters a person who either always lies or always tells the truth. Participants explore strategies for determining the correct road to Gandor using a limited question format.

Discussion Character

  • Exploratory
  • Debate/contested

Main Points Raised

  • One participant suggests asking if the road behind them leads to Gandor, interpreting the response to identify the liar or truth-teller.
  • Another participant agrees with the previous suggestion, indicating it is a valid approach.
  • A different participant proposes asking the individual to point to the road that leads to their city, claiming both the liar and the truth-teller would point to the same road.
  • A subsequent reply challenges the last proposal by emphasizing the constraints of the puzzle, noting that the question format allows only inquiries about specific roads and that it is not stated that the liar and truth-teller come from different cities.
  • One participant acknowledges their misunderstanding after reading the previous posts.

Areas of Agreement / Disagreement

Participants express differing views on the correct approach to the puzzle, with no consensus reached on the best strategy. Some agree on the first suggestion, while others challenge the validity of alternative methods.

Contextual Notes

Participants note limitations in the puzzle's wording, particularly regarding the origins of the liar and truth-teller and the specific nature of the questions allowed.

Jimmy Snyder
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As you travel from Rodnag to Gandor, you encounter a fork in the road. There is someone standing there who is either one who always lies or one who always tells the truth and you don't know which. You can point to any road and ask "Is this the road to Gandor?" as many times as you like, but that is the only question you can get an answer to. How to do find the correct road to Gandor?
 
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white: you point behind you and ask if that's the road to Gandor, if he says yes, he's a liar, no, he's a truther... then you ask about the other roads.
 
That's right, Gale17.
 
what a fun ^^
 
Isn't the answer to ask him to point at the road that goes to his city? The liar points to truth and so does the truth teller.
 
Alkatran said:
Isn't the answer to ask him to point at the road that goes to his city? The liar points to truth and so does the truth teller.
No.
jimmysnyder said:
You can point to any road and ask "Is this the road to Gandor?" as many times as you like, but that is the only question you can get an answer to.
Also, it doesn't say that the liar and truth-teller come from different cities. They could both be from Gandor.
 
edit: aaaaaaaaaand then i read the post
 
Last edited:

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