Have you ever tried to complete a Rubik Cube? Have you ever done it?

A while ago I started to look at world record attempts at completing Rubik Cubes and I was astonished to see people doing what they did: the speeds they work at!

I cannot complete any Rubik Cube but I can use Excel to record the world record times, create a graph and then use Trendlines to find the most appropriate function to help me to predict what the new world record times might be for an 8 x 8 cube, a 9 x 9 cube …

- I recorded the times I found on the internet
- From there I created a graph
- I used Trendline to find the most appropriate function, the best fit function. I started with Linear … and ended up with a Power function as being the best (highest R
^{2} value)

Then I used the Power function to make predictions that I then put into the table and called SecPred: seconds predicted!

Let me know if you complete these larger cubes and let me know how accurate my Power function is.

I should make it clear that the Seconds column shows ACTUAL world record times so I am waiting for the results of an 8 x 8 cube … but my predictions are there!

Duncan Williamson

### Like this:

Like Loading...