French kiss
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| French kiss | |||||||||||
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| Pattern type | Oscillator | ||||||||||
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| Number of cells | 18 | ||||||||||
| Bounding box | 10×9 | ||||||||||
| Period | 3 | ||||||||||
| Mod | 3 | ||||||||||
| Heat | 4 | ||||||||||
| Volatility | 0.27 | ||||||||||
| Strict volatility | 0.27 | ||||||||||
| Discovered by | Robert Wainwright | ||||||||||
| Year of discovery | 1971 | ||||||||||
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French kiss (or eaters plus[1]) is a period 3 oscillator that was found by Robert Wainwright in July 1971. Its generations have 18, 20, and 20 cells.
Synthesis
French kiss was one of the best-known oscillators with no known glider synthesis.[2] until October 2013, when Martin Grant presented a 23-glider synthesis.[3] BlinkerSpawn found an 18-glider synthesis based on soups identified by Goldtiger997 on January 12, 2017;[4] further improvements were made the same day by Mark Niemiec and Luka Okanishi, yielding 16- and 10-glider synthesis respectively.
References
- ↑ "Eaters plus". The Life Lexicon. Stephen Silver. Retrieved on April 28, 2009.
- ↑ Mark D. Niemiec. "Life Objects Sorted by Name (F)". Retrieved on January 9, 2015.
- ↑ Martin Grant. "Re: Synthesising Oscillators". Retrieved on June 12, 2015.
- ↑ BlinkerSpawn (2017-01-12). "Re: Soup search results". Retrieved on 2017-01-12.
See also
External links
- French kiss at the Life Lexicon
- 18P3.20 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Oscillators with 18 cells
- Patterns with 18 cells
- Patterns found by Robert Wainwright
- Patterns found in 1971
- Patterns that can be constructed with 10 gliders
- Oscillators
- Periodic objects with minimum population 18
- Oscillators with period 3
- Oscillators with mod 3
- Oscillators with heat 4
- Oscillators with volatility 0.27
- Oscillators with strict volatility 0.27
- Patterns with 180-degree rotation symmetry
- Semi-natural periodic objects
