180P8

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180P8
x = 35, y = 20, rule = B3/S23 17b2o$6bo2bo2bo3bo2bob2o$6b7o2bob3obo$2o13bo6b3o$bo2b11ob6o2bo$bobo4bo 5bobobo4bo$2obobo4b2o3bo3b2o$o5bo2bo2bo4b2o8b5obo$b2ob2o6bo5b2o3bob2o$ 2bobo7bo8bo2bo9bo$2bobo7bo8bo2bo9bo$b2ob2o6bo5b2o3bob2o$o5bo2bo2bo4b2o 8b5obo$2obobo4b2o3bo3b2o$bobo4bo5bobobo4bo$bo2b11ob6o2bo$2o13bo6b3o$6b 7o2bob3obo$6bo2bo2bo3bo2bob2o$17b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 4 THUMBSIZE 2 ]]
Pattern type Oscillator
Number of cells 180
Bounding box 35 × 20
Period 8
Mod 8
Heat 74
Volatility 0.65
Strict volatility 0.62
Discovered by Arie Paap
Bullet51
Dongook Lee
Year of discovery 2019

180P8 is a period-8 heavyweight sparker with high clearance. The original form, 230P8, was found by Arie Paap on January 17, 2019.[1] Another variant, which is a double form, was found by Bullet51 the same day; this was the main variant until November 13, 2021.[2] In December 2020, Dongook Lee reduced the bounding box by four columns, at the cost of a higher population.[3] On November 13, 2021, Dongook Lee reduced the population from 230 to 182 and the width from 49 to 35[4]; Entity Valkyrie then made a minor 2-cell reduction two minutes later[5], making the final population 180.

Below is 76P8, a domino sparker which is much smaller but much less accessible.

x = 14, y = 15, rule = B3/S23 6b2o$2b2o6b2o$bo10bo$bobo6bobo$2obob4obob2o$3bob4obo$2obo6bob2o$bobo2b 2o2bobo$bo2bob2obo2bo$2bob2o2b2obo$b2ob2o2b2ob2o2$b2o2b4o2b2o$obo2bo2b o2bobo$bo10bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART GPS 2 LOOP 8 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 320 WIDTH 480 ]]
A smaller but less-accessible p8 domino sparker
(click above to open LifeViewer)
RLE: here Plaintext: here
Catagoluehere

See also

References

  1. Arie Paap (January 17, 2019). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  2. Bullet51 (January 17, 2019). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  3. Dongook Lee (December 12, 2020). Message in #cgol on the Conwaylife Lounge Discord server
  4. Dongook Lee (November 13, 2021). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  5. Entity Vaklyrie (November 13, 2021). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums

External links