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 | 0.27 | ||||||||
| Kinetic symmetry | .e | ||||||||
| Discovered by | Robert Wainwright | ||||||||
| Year of discovery | 1971 | ||||||||
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French kiss (or eaters plus) is a period-3 oscillator that was found by Robert Wainwright in July 1971.[1]
It first appeared naturally on Catagolue on July 16, 2022.[2]
Synthesis
French kiss was one of the best-known oscillators with no known glider synthesis, due to difficulties in finding a viable predecessor,[3] until October 2013 when Martin Grant presented a 23-glider synthesis.[4] BlinkerSpawn found an 18-glider synthesis based on soups identified by Goldtiger997 on January 12, 2017;[5] further improvements were made the same day by Mark Niemiec and Luka Okanishi, yielding 16- and 10-glider syntheses respectively. An 8-glider synthesis was found based on another symmetric soup on December 25, 2022.[6]
See also
References
- ↑ "Eaters plus". The Life Lexicon. Stephen Silver. Retrieved on April 28, 2009.
- ↑ cvojan (July 16, 2022). Re: Soup search results (discussion thread) at the ConwayLife.com forums
- ↑ Mark Niemiec (August 17, 2013). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
- ↑ Martin Grant (October 19, 2013). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
- ↑ BlinkerSpawn (January 12, 2017). Re: Soup search results (discussion thread) at the ConwayLife.com forums
- ↑ Chris857 (December 25, 2022). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
External links
- French kiss at the Life Lexicon
- French kiss at Adam P. Goucher's Catagolue
- 18P3.20 at Heinrich Koenig's Game of Life Object Catalogs
- French kiss at Wikipedia (name origin)
Categories:
- Patterns
- Oscillators with 18 cells
- Periodic objects with minimum population 18
- Patterns with 18 cells
- Patterns found by Robert Wainwright
- Patterns found in 1971
- Patterns that can be constructed with 8 gliders
- Oscillators
- Oscillators with period 3
- Oscillators with mod 3
- Oscillators with heat 4
- Oscillators with volatility 0.27
- Oscillators with strict volatility 0.27
- Oscillators with .e symmetry
- Natural periodic objects