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A logic puzzle that will help you solve the hardest logic puzzle ever! 4 Years, 12 Months ago
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Ok,
Here a an easier logic puzzle. If you can solve this one then you will have discovered one technique that will help you solve the hardest logic puzzle ever.
Three cards are placed down on a table (in a row), one jack and two aces. The dealer knows the position of each card but you don't. You are allowed to point to one of the cards and ask the dealer a question. Your aim is to be able to pick one of the cards as an ace. The dealer will follow these rules. If you point to the jack, the dealer will answer you question randomly (i.e. the answer could be true or false). If you point to an ace the dealer will answer your question truthfully.
What question can you ask the dealer which will allow you to pick with certainty, one of the cards as being an ace?
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Re: A logic puzzle that will help you solve the hardest logic puzzle ever! 4 Years, 12 Months ago
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This puzzle is not that hard. Someone who doesn't know it already should solve it. It is good practice.
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Being
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Re: A logic puzzle that will help you solve the hardest logic puzzle ever! 4 Years, 12 Months ago
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Tell us
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A little philosophy inclineth man's mind to atheism, but depth in philosophy bringeth men's minds about to religion. - Francis Bacon
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Re: A logic puzzle that will help you solve the hardest logic puzzle ever! 4 Years, 12 Months ago
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Tell us
Ok,
You point to the middle card and ask, 'is the card to the left of this card a jack?' If the answer is 'no' then you pick the left card, if the answer is 'yes' then you pick the right card. This procedure will let you pick with certainty an ace from the three cards.
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Re: A logic puzzle that will help you solve the hardest logic puzzle ever! 4 Years, 2 Months ago
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Are you sure that works?
Suppose the order is "JJA" (ace on the right). You point to the jack in the middle. He will answer randomly. Half the time he will answer yes and you'll pick correctly. The other half the time he'll answer no and you'll pick incorrectly.
There might be a solution if you knew the dealer gave a FALSE answer, but in this case his answer will be random, so 2/3 of the time (when you point to a jack) his answer will give you no information.
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Salix
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Re: A logic puzzle that will help you solve the hardest logic puzzle ever! 4 Years, 2 Months ago
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Yeah wtf that doesn't work.
Say it's JAJ. I point to the ace and ask the question, he will answer truthfully and say yes, and now you advise me to pick the one on the right, but then I have just picked up a jack!
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If God had meant us to do philosophy, he would have created us.
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