An Aperiodic Monotile
arxiv.org
arxiv.org
* Twitter thread: https://twitter.com/cs_kaplan/status/1637996326129393666
* Page on the subject: https://cs.uwaterloo.ca/~csk/hat/
* Interactive application: https://cs.uwaterloo.ca/~csk/hat/app.html
> A single hat is asymmetric, and so in any patch we can distinguish between “unreflected” and “reflected” orientations of tiles.
Roger Penrose is still alive, I hope he is pleased to see this.
For those who might be interested, it's a whirlwind of various problems in computer science around decidability. "Can't Decide? Undecide!" https://www.ams.org/notices/201003/rtx100300343p.pdf
Almost all math papers are written in LaTeX. There is nothing unusual about this.
Moreover, with a single einstein there is no tile unpredictability or choice whatsoever, eliminating two of the main strategic dimensions of tile-laying games.
For extra added fun, try blinking while looking at the animation