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Pastimes : Laughter is the Best Medicine - Tell us a joke -- Ignore unavailable to you. Want to Upgrade?

To: Sun Tzu who wrote (61660)	12/9/2022 11:31:35 PM
From: Jeffrey S. Mitchell	Read Replies (2) \| Respond to of 62549

I can't help myself since this is my favorite logic puzzle of all time. I, your host, have placed a car behind one of three doors. I have placed a goat behind each of the other two. I allow you to pick one of the three closed doors. You pick, not knowing what's behind any door, Door #1. I then purposefully open Door #3 because I know I placed a goat there. I then give you a chance to change your pick to Door #2. Should you change your pick? Why yes or why no? Here is the answer: en.wikipedia.org. But try to figure it out for yourself first! ===== - Jeff

To: Sun Tzu who wrote (61660)	12/9/2022 11:32:18 PM
From: candsrr	1 Recommendation Recommended By Sun Tzu Respond to of 62549

Thanks for reminding me of that one - goes back quite a ways in several variations. A version of it showed up in an espionage movie on Netflix a couple of years back - I think it was The Coldest Game. Anyway, I don't want to be a spoiler just yet.

To: Sun Tzu who wrote (61660)	12/10/2022 3:33:50 PM
From: candsrr	3 Recommendations Recommended By alanballow Markbn Sun Tzu Respond to of 62549

Please spell it out Basically, the prisoner should ask “what would the other guard say is the door to freedom?” Doesn’t matter which guard he asks, the result either way will be that the death door will be indicated. The door to freedom is the other one. If the prisoner happens to address the truthful guard, the truthful guard will indicate the death door because that is the one that the lying guard would indicate. If instead the prisoner addresses the lying guard, the lying guard will also indicate the death door. The lying guard knows that the truthful guard will indicate the freedom door, but of course the lying guard has to lie to the prisoner. Google has many results for ‘two guards riddle.’ Similar to ‘twin brothers riddle.’ The earliest version I can remember revolved around twin sisters living in a remote place by a fork in the road. Couldn’t find that one quickly. And I forget which variation was in the movie.