Eater 4
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| Eater 4 | |||||||||||
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| Pattern type | Strict still life Eater | ||||||||||
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| Number of cells | 40 | ||||||||||
| Bounding box | 14×14 | ||||||||||
| Discovered by | David Buckingham | ||||||||||
| Year of discovery | 1971 | ||||||||||
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Eater 4 is an eater that was found by David Buckingham in 1971,[citation needed] but was not recognized as an eater until 1975 or 1976. It can't eat gliders, but it can be used in some hasslers, for example a variant of the p29 pre-pulsar shuttle. The four northeast-most center cells regrow in a few generations after being destroyed by taking a bite out of something. See for example the L122 Herschel conduit.
On January 7, 2020, Jeremy Tan found a 14-glider synthesis of this still life.[1]
See also
References
- ↑ Jeremy Tan (January 7, 2020). Re: Soup-based syntheses (discussion thread) at the ConwayLife.com forums
External links
- Eater 4 at the Life Lexicon
Categories:
- Patterns
- Patterns with 40 cells
- Patterns found by David Buckingham
- Patterns found in 1971
- Patterns that can be constructed with 14 gliders
- Still lifes
- Strict still lifes
- Strict still lifes with 40 cells
- Periodic objects with minimum population 40
- Eaters
- Eaters with 40 cells
- Patterns with bilateral diagonal symmetry
- Semi-natural periodic objects
