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The Tower of Hanoi &#151 Myths and Maths

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A M Hinz, Mathematisches Seminar: The Reve's Puzzle Solved? A M Hinz, Mathematisches Seminar: Der Turm von Hanoi - Mythos und Wahrheit. Plus magazine, The Tower of Hanoi: Where maths meets psychology. By Marianne Freiberger, 16th November 2012. Collection of sources on the life and work of Édouard Lucas. Sources in Recreational Mathematics. By David Singmaster (till 2004). Paul Stockmeyer's list of references. The Online Encyclopedia of Integer Sequences. Musée des arts et métiers. Le cnam, Paris. Worksh...

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Puzzles and More: Bridge Crossing

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Wednesday, July 1, 2009. Remember the puzzle of a farmer crossing a river with a wolf, a goat and a cabbage? It is really a question of how the farmer ferries the wolf, goat and cabbage one at a time to the other side of the river without leaving the wolf and goat or the goat and the cabbage alone during the process. Here is a puzzle of bridge crossing with some time constraints:. Are 1, 2, 5 and 10 minutes respectively. Their flash light can last only 17 minutes. How do they cross the bridge?

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Intelligent Links

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MIT Center for Collective Intelligence. Jonathan Wai - Finding the Next Einstein. The World Genius Directory. Nerdy but fun stuff. Escher wooden floor lizards.

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Puzzles and More: 1000 Bottles of Wine

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Tuesday, September 1, 2009. 1000 Bottles of Wine. The King has 1000 bottles of wine one of which was contaminated with a deadly poison. A chemist offered a small vial of agent that can detect traces of the poison, but it can be used for only 10 samples. How can the King find the contaminated bottle? Subscribe to: Post Comments (Atom). I still remember my very first puzzle when I was a child. Here it is: how do you cut a watermelon, with 4 cuts, into 9 pieces and get 10 rinds? Answer: 1000 Bottles of Wine.

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Puzzles and More: Answer: 1000 Bottles of Wine

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Tuesday, September 1, 2009. Answer: 1000 Bottles of Wine. My friend Qin told me this puzzle, but her version involves using 10 condemned prisoners to test the wines. I took the liberty of softening the story a little bit by replacing the 10 condemned prisoners with 10 samples of testing agent. The solution to this puzzles stays the same. Here is a more elegant solution. Which uses the binary system. Subscribe to: Post Comments (Atom). I still remember my very first puzzle when I was a child.

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Puzzles and More: March 2009

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Sunday, March 1, 2009. Answer: Black Hats and White Hats. I first read this puzzle in a book titled Fun with Mathematics. 趣味数学) in Chinese. It was a translation of the book Moscow Puzzles. Which became one of my favorite books. The answer to this puzzle is not hard to get if we follow the logic thinking of C. Read the answer here. Subscribe to: Posts (Atom). I still remember my very first puzzle when I was a child. Here it is: how do you cut a watermelon, with 4 cuts, into 9 pieces and get 10 rinds?

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Puzzles and More: Twelve Coins

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Friday, September 12, 2008. Given 12 coins that look identical, with an odd coin either lighter or heavier than the rest, use a balance to weigh the coins three times to determine which is the odd coin and whether it is lighter or heavier than the rest. Subscribe to: Post Comments (Atom). I still remember my very first puzzle when I was a child. Here it is: how do you cut a watermelon, with 4 cuts, into 9 pieces and get 10 rinds? View my complete profile.

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Puzzles and More: July 2009

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Wednesday, July 1, 2009. In the river crossing puzzle, the farmer is the only person who could operate the boat. Therefore the solution is to find minimum number of trips the farmer has to make to bring the wolf, the goat and the cabbage to the other side of the river without leaving the wolf and the goat or the goat and cabbage alone. In this bridge crossing puzzle, however, we know they have to make 5 trips altogether, so the question is to find the trips of the shortest time. Read the answer here.

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Puzzles and More: October 2008

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Monday, October 13, 2008. Black Hats and White Hats. In a dark room there were 3 black hats and 2 white hats. Three people, A. Were asked to go inside the dark room and put a hat on and then leave the room to stand in a queue. No body could see the color of their own hats. A. Stood in the front so he could not see B. Could see both A. Was asked if he could tell the color of his hat, the answer was "no." And so was the answer from B. However when the same question was asked of A. The answer was "yes.".