Dogs Chasing Squirrels

A software development blog

Category Archives: Fun and Games

Day Off


No coding this weekend. I went here instead.

Day Off


No code this week. I went on a hike instead.

Rubik’s cube fast f2l (first two layers) diagram



Rubik's cube f2l diagram preview

Rubik’s cube f2l diagram preview

When learning the fast method to solve the first two layers (f2l) of the Rubik’s cube, I started out with a list of all the beginning positions of the corner and edge piece and the algorithms needed to put them in position.  I saw that a lot of the algorithms were related.  Midway through one algorithm, I would find myself in the starting position of a different algorithm.  Or multiple algorithms would have the same ending.  I created a diagram to show how all the initial positions could move through the various permutations to get to the solved position so that I could see how they were all related and to help myself visualize the solutions.  In the hopes that my diagram might help others, I’m posting it here.