math them

Today we'll look at some reconfigurations of the 2x2x2 Rubik's cube that allow for different explorations and lower the floor.

When I was a grad student, I used to keep a basket of burr puzzles on my coffee table for guests to fiddle with. Today we'll look at an activity where students design them before solving them!

I first encountered the locker problem at a math competition in high school. JRMF used to have a version of it on the books called Lightbulbs , but it was retired because it was too app-dependent. Today we'll look at some manipulatives and sequences for a hands-on, in-person version.

I first encountered Numberlink puzzles in the (numberless) Flow Free app and appreciated them because they were a little more topological than the typical logic puzzle.

There are a number of interesting ways to make a two-player game out of coloring the vertices of graphs. We'll look at a couple.

Daniel Kline has been playing around with an in-person version of Panning for Gold and was wondering what other puzzle variants could be done on a balance scale. This post is an attempt to answer that question!

Here we'll look at some of the mathematics behind a cheap, commercially available peg solitaire puzzle.