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4×4 Square

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:

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.