Hi. How wonderful, my friend to see you again. I was gone for a while. Now I’m happy and so glad to be here.
Seven years ago I was wasting time reading on the internet using StumbleUpon, and I stumbled upon this page:
http://finitegeometry.org/sc/ph/imago.html
which made me curious about the rest of the website.
The website is owned and maintained by a scientist called Steven Cullinane.
The contents are enjoyable and I think I learned myself something. Now I created a Python application to play with the 4×4 square.
https://github.com/gapag/4x4square
