Something that is unclear to me: are hat reflections allowed? I think they are, ... | Hacker News

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		joelthelion 12 months ago \| parent \| context \| favorite \| on: An Aperiodic Monotile (2023) Something that is unclear to me: are hat reflections allowed? I think they are, but it would be good to have confirmation. In short, if you allow reflections, are the tilings still guaranteed to be aperiodic?

shrx 12 months ago [–]

They discovered both variants, first the "Hat" and "Turtle" which require reflections, and then the "Spectre" which does not.

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