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Catacryst image
Pattern type Breeder
Number of cells 58
Bounding box 2555×1772
Direction Unknown
Period Unknown
Speed Unknown
Discovered by Nick Gotts
Year of discovery 2000

Catacryst is a 58-cell quadratic growth pattern found by Nick Gotts on April 21, 2000.[1] This was formerly the smallest known pattern with superlinear growth, but has since been superseded by the related metacatacryst and 26-cell quadratic growth. The catacryst consists of three arks plus a glider-producing switch engine. It produces a block-laying switch engine every 47616 generations. Each block-laying switch engine has only a finite life, but the length of this life increases linearly with each new switch engine, so that the pattern overall grows quadratically, as an unusual type of MMS breeder.

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  1. Jason Summers' jslife-oversize pattern collection. Retrieved on October 28, 2020.

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