Category Archives: games

The wonderful world of Mike Reilly

The other day I received an email from Mike Reilly, who introduced himself as a professional game and puzzle inventor, and suggested that I might be interested in taking a look at a few of his web sites. I wasn’t … Continue reading

Posted in games, links, people, puzzles | Tagged , , , , , | 2 Comments

Vi Hart's math doodles

Vi Hart’s math doodle videos have been making the rounds of the math blogosphere (I heard of them from Denise at Let’s Play Math!). There are four videos so far and they are well worth watching — inspirational, creative, full … Continue reading

Posted in games, humor, links, people, video | Tagged , , , | 2 Comments

The mathematics of human knots

Have you ever played “human knot”? It seems to be a common icebreaker/team-building sort of exercise (just do a Google search for “human knot” and you’ll find quite a few pages discussing it). Everyone stands in a circle, then reaches … Continue reading

Posted in games, people, probability | Tagged , , , , , | 9 Comments

Manufactoria

A friend of mine just pointed me to a most excellent puzzle game, Manufactoria, wherein you build little machines to test robots. For now I won’t give away the secret of what real math/computer science topic the game teaches you, … Continue reading

Posted in games, links, logic, programming, puzzles | Tagged , , | 17 Comments

Divisor nim

Yesterday in math club I had the students play a game which I dimly remember seeing somewhere but forget where. Since I don’t know what it is really called, I’m calling it “divisor nim”. Here’s how it works: The players … Continue reading

Posted in games, number theory, pattern | Tagged , , | 2 Comments

MangaHigh.com

I recently received an email suggesting that I check out the website MangaHigh.com, which has interactive math-based games for elementary through high school students. Now, I am generally pretty skeptical of such things. For one, they are usually of relatively … Continue reading

Posted in games, links, teaching | Tagged , , | 1 Comment

The Christmas Price Index

I’ve written before about the mathematics of the traditional song “The Twelve Days of Christmas”. For a different angle, check out PNC Bank’s “Christmas Price Index”: apparently, every year they compute the total cost of all the gifts in the … Continue reading

Posted in games, links, video | Tagged , , , , | 1 Comment

minim

A fun game I discovered recently, minim. In each level you start out with a network of numbered nodes, and the object is to successively combine the nodes according to certain mathematical rules in order to end up with only … Continue reading

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Nuclear Pennies Game: Analysis

And now, for the promised analysis of the Nuclear Pennies Game! First, recall the rules of the game: there is a semi-infinite (i.e. with a beginning but no end) strip of squares, each of which can contain a stack of … Continue reading

Posted in algebra, complex numbers, games, proof | 3 Comments

Nuclear Pennies Game: Solution

It seems that everyone with a blog is always apologizing for not posting in a while, as if this has somehow inconvenienced their readers. Of course, with the magic of feed readers, email notifications, and the like, this is not … Continue reading

Posted in games, links, solutions | Tagged , , , | 1 Comment