This blog post is about a new variation on the classic problem, which I call Quarter the Cross: Connect the Dots.
You can read the rest of this blog post, and four other related posts, in PDF form here
The titles of the five posts in the series are:
- Quarter the Cross (2016)
- A Day of Maths: Quarter the Cross (2016)
- David Butler and the Prisoner of Alhazen (2016)
- Quarter the Cross: Colouring (2020)
- Quarter the Cross: Connect the Dots (2020)
Some resources linked from this post:

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