Honey thieves

From LifeWiki
Jump to navigation Jump to search
Honey thieves
x = 15, y = 15, rule = B3/S23 2o$bo$bobo9b2o$2bobo8bo$11bobo$11b2o$5b2o$5b2ob2o$8b2o$2b2o$bobo$bo8bo bo$2o9bobo$13bo$13b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ THUMBSIZE 4 GPS 4 ZOOM 24 HEIGHT 430 LOOP 17 ]]
Pattern type Oscillator
Number of cells 36
Bounding box 15 × 15
Period 17
Mod 17
Heat 13.9
Volatility 0.71
Strict volatility 0.71
Discovered by Matthias Merzenich
Year of discovery 2014

Honey thieves is a period-17 oscillator, consisting of a honey farm predecessor hassled by 4 eater 1s. It is the smallest known period 17 oscillator in terms of minimum population, though 54P17.1 still has a slightly smaller bounding box.

It was discovered by Matthias Merzenich in September 2014[1] with a modified version of Dean Hickerson's drifter search program, that facilitates discovery of symmetric oscillators.[2]

One of the eaters can be replaced by a periodic version of Eater 2 to yield 90P51, 72P68 or 74P85, using a p3, p4 and p5 version respectively.

Mark Niemiec found a 17-glider synthesis of this oscillator.[3] A 15-glider synthesis was found in November 2021, quickly followed by a 13-glider synthesis.[4][5]

x = 89, y = 68, rule = B3/S23 35bo$33b2o$o13bo19b2o$b2o9bobo23bo$2o11b2o23bobo$38b2o7$13b2o$12bo2bo 36b2o$12bo2bo37bo$13b2o20b2o16bobo9b2o$35bo18bobo8bo$33bobo27bobo$33b 2o28b2o$30bo26b2o$29bobo25b2ob2o$29bobo28b2o$24b2o4bo23b2o$23bobo27bob o$23bo9b2o18bo8bobo$22b2o9bobo16b2o9bobo$35bo29bo$35b2o28b2o2$9b2o$8bo bo$10bo2$70bo$70bobo$70b2o3$9bobo$10b2o66bo$10bo66bo$77b3o2$22b2o28b2o $23bo29bo$23bobo9b2o16bobo9b2o$24b2o9bo18b2o9bo$33bobo27bobo$33b2o28b 2o$27b2o$26bo2bo$27bobo$28bo25b2o$13b2o38bobo$12bo2bo17b2o18bo$12bo2bo 17bobo16b2o20b2o$13b2o20bo37bo2bo$35b2o36bo2bo$74b2o2$69b3o$69bo$70bo$ b2o$obo$2bo36bo47bo$38b2o46b2o$38bobo45bobo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ WIDTH 760 HEIGHT 670 THEME Book ZOOM 8 X 0 Y 0 AUTOSTART GPS 15 T 0 PAUSE 1 T 20 PAUSE 3 T 119 PAUSE 1 LOOP 120 ]]
Final steps of syntheses: 17G (top left), 15G (bottom left), 13G (bottom right)
(click above to open LifeViewer)

References

  1. Matthias Merzenich (September 11, 2014). Re: New p17 and other billiard tables (discussion thread) at the ConwayLife.com forums
  2. Matthias Merzenich (September 10, 2014). A small modification of dr (discussion thread) at the ConwayLife.com forums
  3. Mark Niemiec (September 13, 2014). Re: New p17 and other billiard tables (discussion thread) at the ConwayLife.com forums
  4. shinjuku (#1743473016) (November 3, 2021). Job triggered by Adam P. Goucher at GitLab Catagolue project.
  5. iNoMed (October 29, 2021). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums

External links