Tanner's p46
Tanner's p46 is a period-46 oscillator that was found by Tanner Jacobi on October 20, 2017[1] involving a pi running a small conduit containing a PT8P and a PT38P.
Tanner's p46 | |||||||||||
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Pattern type | Oscillator | ||||||||||
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Number of cells | 41 | ||||||||||
Bounding box | 23×26 | ||||||||||
Period | 46 | ||||||||||
Mod | 46 | ||||||||||
Heat | 21.87 | ||||||||||
Volatility | 0.87 | ||||||||||
Strict volatility | 0.87 | ||||||||||
Discovered by | Tanner Jacobi | ||||||||||
Year of discovery | 2017 | ||||||||||
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Tanner's p46 ranked second place in the Pattern of the Year 2017 competition on the ConwayLife.com forums, behind the 2-engine Cordership.[2]
Synthesis
Mark Niemiec posted a trivial 19-glider synthesis of Tanner's p46 two hours after its discovery.[3] This can be reduced to 15 gliders to produce a stator variant that replaces the two snakes with eater 1s.
Uses
David Bell used Tanner's p46 and a twin bees shuttle to build a period 46 glider gun on October 21:[4]
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 31, y = 44, rule = B3/S23
17boo5boo$17boo5boo11$17bo7bo$15boboo5boobo$15bo3booboo3bo$16bo3bobo3b
o$17b3o3b3o10$14bo14bo$13b3o14bo$12bobobo11b3o$12bobobo$10boob3oboo$9b
obooboboobo$3boo3boobo5boboo$3boo4boobo3boboobboboo$10b3o3b3o3boobo$$
bboo$3bo$3o$o13bo$13boboboboo$12bobooboobo$12bo$11boo!
#C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
#C [[ AUTOSTART GPS 23 THUMBSIZE 2 ZOOM 10 HEIGHT 600 ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html> Please enable Javascript to view this LifeViewer. <html></noscript></canvas></div></html> |
(click above to open LifeViewer) RLE: here Plaintext: here |
The same day, Matthias Merzenich built a p46 gliderless MWSS gun using two copies of Tanner's p46.[5] In June 2018, Nathaniel Johnston built a p46 gliderless LWSS gun using three copies of the oscillator.[6]
References
- Tanner Jacobi (Kazyan) (2017-10-20). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- Dave Greene (February 19, 2018). Re: Pattern of the Year 2017 -- votes (discussion thread) at the ConwayLife.com forums
- Mark Niemiec (October 20, 2017). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- David Bell (October 21, 2017). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- Matthias Merzenich (October 21, 2017). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- Nathaniel Johnston (2018-06-27). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums