French kiss

	French kiss
	<a href="/wiki/File:Frenchkiss.png" class="image" title="French kiss image"><img alt="French kiss image" src="/w/images/c/ce/Frenchkiss.png" decoding="async" width="193" height="177" /></a>
	<a href="/wiki/File:Frenchkiss.png" class="image" title="French kiss image"><img alt="French kiss image" src="/w/images/c/ce/Frenchkiss.png" decoding="async" width="193" height="177" /></a>
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Pattern type	Oscillator
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
Rules
Outer-totalistic rules	B3/S23 – B3678/S0235678
Important rules	Conway Life, HighLife
# of rules	28 = 256
Isotropic rules	B3jq/S2-in3jnry – B2cin34ceirtyz5-cq678/S01c234-kw5678
Glider synthesis
Fewest gliders	10
Catagolue-generated RLE	frenchkiss_synth.rle
Uploaded synthesis RLE	frenchkiss_synth.rle
Pattern files
Plaintext	frenchkiss.cells
RLE	frenchkiss.rle
Identifiers
apgcode	xp3_17844ozx3442sg
Pentadecathlon ID	18P3.20

French kiss (or eaters plus) is a period-3 oscillator that was found by Robert Wainwright in July 1971.^[1]

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.

↑ "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 (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