Talk:246: Labyrinth Puzzle - Revision history

82.132.239.77 at 14:16, 20 February 2026

2026-02-20T14:16:26Z

180.181.250.224 at 05:17, 20 February 2026

2026-02-20T05:17:45Z

73.151.32.230 at 20:16, 4 August 2025

2025-08-04T20:16:33Z

172.69.79.164 at 18:49, 16 February 2024

2024-02-16T18:49:01Z

172.70.211.129: /* Does the actual Labyrinth Puzzle's solution work? */ new section

2024-02-16T18:43:29Z

‎Does the actual Labyrinth Puzzle's solution work?: new section

AndrewTheXKCDer at 18:51, 26 June 2021

2021-06-26T18:51:14Z

AndrewTheXKCDer: Solution where the stabber acts randomly if a nontricky question is presented

2021-06-26T18:49:05Z

Solution where the stabber acts randomly if a nontricky question is presented

Lupo at 07:56, 3 May 2021

2021-05-03T07:56:34Z

172.68.37.38 at 23:42, 2 May 2021

2021-05-02T23:42:18Z

108.162.216.48: Are you gonna stab me?

2020-12-29T16:44:09Z

Are you gonna stab me?

@@ Line 47: / Line 47: @@
 I remember a book where the main character kicked one guard in the face and asked if it hurt. {{unsigned ip|162.158.252.137}}
-:In a Percy Jackson book, one tells the truth, one lies, and one says something COMPLETELY random. (but the doors all lead to the same place anyway)
+:In a Percy Jackson book, one tells the truth, one lies, and one says something COMPLETELY random. (but the doors all lead to the same place anyway) {{unsigned ip|180.181.250.224|05:17, 20 February 2026}}
 There's another unspoken rule:  That the lie is either a yes or a no.  If you asked the liar something, he could lie and say, "I don't know," which would leave you with nothing.  Also, as Stabby MacStabberson does not appear to have any restrictions on what he tells you (that is, he has the choice between truth or falsehood,) there's no sure way out even if he wasn't tasked with stabbing you.[[Special:Contributions/162.158.255.69|162.158.255.69]] 05:32, 30 April 2016 (UTC)

← Older revision		Revision as of 05:17, 20 February 2026
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	I remember a book where the main character kicked one guard in the face and asked if it hurt. {{unsigned ip\|162.158.252.137}}		I remember a book where the main character kicked one guard in the face and asked if it hurt. {{unsigned ip\|162.158.252.137}}
		+	:In a Percy Jackson book, one tells the truth, one lies, and one says something COMPLETELY random. (but the doors all lead to the same place anyway)

	There's another unspoken rule: That the lie is either a yes or a no. If you asked the liar something, he could lie and say, "I don't know," which would leave you with nothing. Also, as Stabby MacStabberson does not appear to have any restrictions on what he tells you (that is, he has the choice between truth or falsehood,) there's no sure way out even if he wasn't tasked with stabbing you.[[Special:Contributions/162.158.255.69\|162.158.255.69]] 05:32, 30 April 2016 (UTC)		There's another unspoken rule: That the lie is either a yes or a no. If you asked the liar something, he could lie and say, "I don't know," which would leave you with nothing. Also, as Stabby MacStabberson does not appear to have any restrictions on what he tells you (that is, he has the choice between truth or falsehood,) there's no sure way out even if he wasn't tasked with stabbing you.[[Special:Contributions/162.158.255.69\|162.158.255.69]] 05:32, 30 April 2016 (UTC)

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 Assuming there are three doors (as shown in the picture), at least one door leads out, and at least one door does not, the single non tricky question of "Which doors lead out?" will always yield a useful answer. For two safe doors, if two door are pointed at, they are safe. if one door is pointed at, it's deadly. If only one door is safe, it's the opposite.  If there are only two doors, (as in the standard puzzle) there's nothing you can door, as any question that both the liar and the truth teller would answer identically and tells you which door to go through is a tricky question. [[Special:Contributions/172.68.37.38|172.68.37.38]] 23:42, 2 May 2021 (UTC)
 :Assuming only "door 1" leads out and I ask the liar "which doors lead out?", he may give any answer apart from "door 1", e.g. "all doors" or "doors 1 and 2" - this is not helpful. Similarily for 2 safe doors the answer to "which doors lead out?" could be a lie without of being the complete opposite of truth. (e.g. doors 1/2 lead out, liar could say 1/3 lead out - not useful) --[[User:Lupo|Lupo]] ([[User talk:Lupo|talk]]) 07:56, 3 May 2021 (UTC)
 My friend Umnikos came up with a solution for the version where the stabber acts randomly or adversarially for nontricky questions (tricky questions are those that could be used on their own to determine whether the stabber is lying, or to extract information without knowing whether someone is lying).

@@ Line 77: / Line 77: @@
 Q4: "if I asked you if door 3 lead to freedom, would you say yes?" [[User:AndrewTheXKCDer|AndrewTheXKCDer]] ([[User talk:AndrewTheXKCDer|talk]]) 18:49, 26 June 2021 (UTC)
-== Does the actual Labyrinth Puzzle's solution work? ==
+;Does the actual Labyrinth Puzzle's solution work?
-First of all, both of the gaurds in the Liar-Truthteller solution don't necessarily have to answer your question. And even if the fact that they have to answer your question was implied, couldn't the liar just say that none of them lead out?
+First of all, both of the gaurds in the Liar-Truthteller solution don't necessarily have to answer your question. And even if the fact that they have to answer your question was implied, couldn't the liar just say that none of them lead out? {{unsigned ip|172.70.211.129|18:43, 16 February 2024}}

← Older revision		Revision as of 18:43, 16 February 2024
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	Q4: "if I asked you if door 3 lead to freedom, would you say yes?" [[User:AndrewTheXKCDer\|AndrewTheXKCDer]] ([[User talk:AndrewTheXKCDer\|talk]]) 18:49, 26 June 2021 (UTC)		Q4: "if I asked you if door 3 lead to freedom, would you say yes?" [[User:AndrewTheXKCDer\|AndrewTheXKCDer]] ([[User talk:AndrewTheXKCDer\|talk]]) 18:49, 26 June 2021 (UTC)
		+
		+	== Does the actual Labyrinth Puzzle's solution work? ==
		+
		+	First of all, both of the gaurds in the Liar-Truthteller solution don't necessarily have to answer your question. And even if the fact that they have to answer your question was implied, couldn't the liar just say that none of them lead out?

@@ Line 63: / Line 63: @@
 :Assuming only "door 1" leads out and I ask the liar "which doors lead out?", he may give any answer apart from "door 1", e.g. "all doors" or "doors 1 and 2" - this is not helpful. Similarily for 2 safe doors the answer to "which doors lead out?" could be a lie without of being the complete opposite of truth. (e.g. doors 1/2 lead out, liar could say 1/3 lead out - not useful) --[[User:Lupo|Lupo]] ([[User talk:Lupo|talk]]) 07:56, 3 May 2021 (UTC)
-My friend Umnikos came up with a solution for the version where the stabber acts randomly or adversarially.
+My friend Umnikos came up with a solution for the version where the stabber acts randomly or adversarially for nontricky questions (tricky questions are those that could be used on their own to determine whether the stabber is lying, or to extract information without knowing whether someone is lying).
 Q1: "does door 1 lead to freedom?"

← Older revision		Revision as of 18:49, 26 June 2021
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	Assuming there are three doors (as shown in the picture), at least one door leads out, and at least one door does not, the single non tricky question of "Which doors lead out?" will always yield a useful answer. For two safe doors, if two door are pointed at, they are safe. if one door is pointed at, it's deadly. If only one door is safe, it's the opposite. If there are only two doors, (as in the standard puzzle) there's nothing you can door, as any question that both the liar and the truth teller would answer identically and tells you which door to go through is a tricky question. [[Special:Contributions/172.68.37.38\|172.68.37.38]] 23:42, 2 May 2021 (UTC)		Assuming there are three doors (as shown in the picture), at least one door leads out, and at least one door does not, the single non tricky question of "Which doors lead out?" will always yield a useful answer. For two safe doors, if two door are pointed at, they are safe. if one door is pointed at, it's deadly. If only one door is safe, it's the opposite. If there are only two doors, (as in the standard puzzle) there's nothing you can door, as any question that both the liar and the truth teller would answer identically and tells you which door to go through is a tricky question. [[Special:Contributions/172.68.37.38\|172.68.37.38]] 23:42, 2 May 2021 (UTC)
	:Assuming only "door 1" leads out and I ask the liar "which doors lead out?", he may give any answer apart from "door 1", e.g. "all doors" or "doors 1 and 2" - this is not helpful. Similarily for 2 safe doors the answer to "which doors lead out?" could be a lie without of being the complete opposite of truth. (e.g. doors 1/2 lead out, liar could say 1/3 lead out - not useful) --[[User:Lupo\|Lupo]] ([[User talk:Lupo\|talk]]) 07:56, 3 May 2021 (UTC)		:Assuming only "door 1" leads out and I ask the liar "which doors lead out?", he may give any answer apart from "door 1", e.g. "all doors" or "doors 1 and 2" - this is not helpful. Similarily for 2 safe doors the answer to "which doors lead out?" could be a lie without of being the complete opposite of truth. (e.g. doors 1/2 lead out, liar could say 1/3 lead out - not useful) --[[User:Lupo\|Lupo]] ([[User talk:Lupo\|talk]]) 07:56, 3 May 2021 (UTC)
		+
		+	My friend Umnikos came up with a solution for the version where the stabber acts randomly or adversarially.
		+
		+	Q1: "does door 1 lead to freedom?"
		+
		+	Two guards will answer in one way, the third in another.
		+
		+	to the third, unique guard:
		+
		+	Q2: "if I asked you if door 1 lead to freedom, would you say yes?"
		+
		+	Q3: "if I asked you if door 2 lead to freedom, would you say yes?"
		+
		+	Q4: "if I asked you if door 3 lead to freedom, would you say yes?" [[User:AndrewTheXKCDer\|AndrewTheXKCDer]] ([[User talk:AndrewTheXKCDer\|talk]]) 18:49, 26 June 2021 (UTC)

← Older revision		Revision as of 07:56, 3 May 2021
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	Assuming there are three doors (as shown in the picture), at least one door leads out, and at least one door does not, the single non tricky question of "Which doors lead out?" will always yield a useful answer. For two safe doors, if two door are pointed at, they are safe. if one door is pointed at, it's deadly. If only one door is safe, it's the opposite. If there are only two doors, (as in the standard puzzle) there's nothing you can door, as any question that both the liar and the truth teller would answer identically and tells you which door to go through is a tricky question. [[Special:Contributions/172.68.37.38\|172.68.37.38]] 23:42, 2 May 2021 (UTC)		Assuming there are three doors (as shown in the picture), at least one door leads out, and at least one door does not, the single non tricky question of "Which doors lead out?" will always yield a useful answer. For two safe doors, if two door are pointed at, they are safe. if one door is pointed at, it's deadly. If only one door is safe, it's the opposite. If there are only two doors, (as in the standard puzzle) there's nothing you can door, as any question that both the liar and the truth teller would answer identically and tells you which door to go through is a tricky question. [[Special:Contributions/172.68.37.38\|172.68.37.38]] 23:42, 2 May 2021 (UTC)
		+	:Assuming only "door 1" leads out and I ask the liar "which doors lead out?", he may give any answer apart from "door 1", e.g. "all doors" or "doors 1 and 2" - this is not helpful. Similarily for 2 safe doors the answer to "which doors lead out?" could be a lie without of being the complete opposite of truth. (e.g. doors 1/2 lead out, liar could say 1/3 lead out - not useful) --[[User:Lupo\|Lupo]] ([[User talk:Lupo\|talk]]) 07:56, 3 May 2021 (UTC)

← Older revision		Revision as of 23:42, 2 May 2021
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	"What would you say is the way out?" It doesn't seem tricky, but it's actually a meta-question. The guard knows what they would say is the way out. If the guard tells the truth, they would say the correct door. The guard tells the truth about telling the truth and says the correct door. If the guard lies, they know they would lie about what the correct door is. The guard lies about lying and says the correct door. [[Special:Contributions/162.158.79.47\|162.158.79.47]] 21:19, 3 February 2020 (UTC)		"What would you say is the way out?" It doesn't seem tricky, but it's actually a meta-question. The guard knows what they would say is the way out. If the guard tells the truth, they would say the correct door. The guard tells the truth about telling the truth and says the correct door. If the guard lies, they know they would lie about what the correct door is. The guard lies about lying and says the correct door. [[Special:Contributions/162.158.79.47\|162.158.79.47]] 21:19, 3 February 2020 (UTC)
		+
		+	Assuming there are three doors (as shown in the picture), at least one door leads out, and at least one door does not, the single non tricky question of "Which doors lead out?" will always yield a useful answer. For two safe doors, if two door are pointed at, they are safe. if one door is pointed at, it's deadly. If only one door is safe, it's the opposite. If there are only two doors, (as in the standard puzzle) there's nothing you can door, as any question that both the liar and the truth teller would answer identically and tells you which door to go through is a tricky question. [[Special:Contributions/172.68.37.38\|172.68.37.38]] 23:42, 2 May 2021 (UTC)

← Older revision		Revision as of 16:44, 29 December 2020
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	Who said the Stab Guard has a true sense of complex? He could just stab you anytime. [[User:Dontknow\|Dontknow]] ([[User talk:Dontknow\|talk]]) 00:37, 16 March 2017 (UTC)		Who said the Stab Guard has a true sense of complex? He could just stab you anytime. [[User:Dontknow\|Dontknow]] ([[User talk:Dontknow\|talk]]) 00:37, 16 March 2017 (UTC)
		+
		+	What's wrong with "Are you gonna stab me?"? They'll either answer or not and stab you or not, that's around 2 bits, which seems like it should maybe help decide in a space of 3. I ask Lie, he says yes, yet doesn't stab me. I ask True, he says no, and doesn't stab me. I ask Stabby, and he says no and doesn't stab me because it's a really simple question. [[Special:Contributions/108.162.216.48\|108.162.216.48]] 16:44, 29 December 2020 (UTC) with [[Special:Contributions/108.162.216.48\|108.162.216.48]] 16:44, 29 December 2020 (UTC)

	Here's a solution, but it's quite stupid, and might not work, depending on if the guards appreciate their mothers:		Here's a solution, but it's quite stupid, and might not work, depending on if the guards appreciate their mothers: