Difference between revisions of "Doo-dah"

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A [[beehive]] puffer based on this spaceship was found the same day, seemingly independently by [[iNoMed]]<ref name="message785159676852437022" /> and [[GUYTU6J]].<ref name="post114486" /> GUYTU6J also found a [[block]] puffer formed by adding a second weekender to the side of the p21 ship.<ref name="post114486" /> Both of these puffers can be either one- or two-sided. Various glider [[rake]]s have also been constructed.<ref name="post114499" /><ref name="message785367903423299584" /><ref name="post114700" /> On December 7, GUYTU6J and [[praosylen]] found several period-42 doo-dah-based spaceships.<ref name="post114594" /><ref name="post114718" />
A [[beehive]] puffer based on this spaceship was found the same day, seemingly independently by [[iNoMed]]<ref name="message785159676852437022" /> and [[GUYTU6J]].<ref name="post114486" /> GUYTU6J also found a [[block]] puffer formed by adding a second weekender to the side of the p21 ship.<ref name="post114486" /> Both of these puffers can be either one- or two-sided. Various glider [[rake]]s have also been constructed.<ref name="post114499" /><ref name="message785367903423299584" /><ref name="post114700" /> On December 7, GUYTU6J and [[praosylen]] found several period-42 doo-dah-based spaceships.<ref name="post114594" /><ref name="post114718" />
Doo-dah has been minted as an NFT.<ref>https://catagolue.hatsya.com/nfts/1</ref>


== Construction ==
== Construction ==

Revision as of 07:08, 26 February 2024

Doo-dah
x = 16, y = 28, rule = B3/S23 bo12bo$bo12bo$obo10bobo$bo12bo$bo12bo$2bo3b4o3bo$6b4o$2b4o4b4o2$4bo6bo $5b2o2b2o6$3b2o6b2o$2bob2o4b2obo$2bo2bo4bo2bo$3b3o4b3o$3b2o6b2o2$o14bo $o14bo$bo12bo$b2o10b2o$o14bo$b2o10b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ HEIGHT 450 GPS 7 TRACKLOOP 21 0 -2/7 ZOOM 12 THUMBSIZE 3 ]]
View animated image
View static image
Pattern type Spaceship
Number of cells 74
Bounding box 18 × 28
Direction Orthogonal
Period 21 (mod: 21)
Speed 2c/7 | 6c/21
Heat 78.9
Kinetic symmetry Unspecified
Discovered by John Winston Garth
Year of discovery 2020

Doo-dah is a period-21 spaceship consisting of a weekender pulling a period-21 tagalong that was found by John Winston Garth on December 6, 2020. In its simplest phase, the tagalong part consists entirely of two R-pentomino descendants.[1][2] The spaceship was found using a combination of ikpx2 and apgsearch, with partial results from the former being inputted into the latter via ikpx2's "standard input" feature, with the goal of searching higher-period spaceships and puffers. Garth named the tagalong "doo-dah" after a nickname for his grandfather.[3]

x = 76, y = 28, rule = B3/S23 43bo12bo$42b3o10b3o$bo12bo26b5o8b5o$3o10b3o25b5o8b5o$3o10b3o26bo6b2o6b o$43b3o3b2o3b3o$46bobo2bobo$3bo3b2o3bo7bo12bo14bo2bo8bo12bo$bob4o2b4ob o4bobo10bobo11bo6bo5b3o10b3o$bob4o2b4obo3bo3bo8bo3bo11b6o5b5o8b5o$19bo 2bo8bo2bo12bo4bo5b5o8b5o$5b6o8bobo4b2o4bobo24bo6b2o6bo$4b2o4b2o8b3o3b 2o3b3o26b3o3b2o3b3o$4b2o4b2o11bo6bo32bobo2bobo$22bo2b4o2bo13b3o4b3o10b o2bo$26b2o16bo3bo2bo3bo7bo6bo$3b3o4b3o10b3o2b3o13bo3bo2bo3bo8b6o$47bo 4bo11bo4bo$6bo2bo$5b2o2b2o31b2ob2o6b2ob2o$5bo4bo31bo2b2o2b2o2b2o2bo$b 2obo6bob2o28b2o4b2o4b2o$3ob2o4b2ob3o7bo6bo31b3o4b3o$o3bo2b2o2bo3bo6b3o 4b3o30bo2bo2bo2bo$b3o3b2o3b3o6bo2b2o2b2o2bo27bo12bo$2bo10bo6b3ob2o2b2o b3o26bo5b2o5bo$21b5o2b5o27bo4bo2bo4bo$23bo6bo32bo6bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ WIDTH 720 HEIGHT 540 THEME Book ZOOM 8 X 0 Y -14 GPS 15 AUTOSTART T 0 PAUSE 2 T 105 PAUSE 2 LOOP 106 ]]
Two clean block puffers:[4] p42 (left), p21 (right)
(click above to open LifeViewer)

A beehive puffer based on this spaceship was found the same day, seemingly independently by iNoMed[5] and GUYTU6J.[6] GUYTU6J also found a block puffer formed by adding a second weekender to the side of the p21 ship.[6] Both of these puffers can be either one- or two-sided. Various glider rakes have also been constructed.[7][8][9] On December 7, GUYTU6J and praosylen found several period-42 doo-dah-based spaceships.[10][11]

Doo-dah has been minted as an NFT.[12]

Construction

Goldtiger997 found that the p21 tagalong could be added to the weekender with six gliders,[13][2] while iNoMed found that each side could be turned into a beehive puffer with two gliders.[14][2] Finally, gooddogtyson and BlinkerSpawn found that the p21 ship could be converted both to and from a puffer with just one glider each way, on each side.[15][16]

x = 52, y = 29, rule = B3/S23 2bobo42bobo$3b2o42b2o$3bo44bo10$19bo12bo$18b3o10b3o$17b5o8b5o$17b5o8b 5o$18bo6b2o6bo$19b3o3b2o3b3o$22bobo2bobo$24bo2bo$22bo6bo$23b6o$23bo4bo 3$7b2o34b2o$bo6b2o32b2o6bo$b2o4bo36bo4b2o$obo46bobo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 460 ZOOM 8 X 0 Y -8 THEME Book GPS 10 AUTOSTART T 0 PAUSE 3 T 54 PAUSE 1 T 64 PAUSE 1 T 85 PAUSE 1 LOOP 126 ]]
p21 tagalong added with six gliders
(click above to open LifeViewer)
RLE: here Plaintext: here
x = 38, y = 29, rule = B3/S23 14bo12bo$13bobo10bobo$12bo3bo8bo3bo$13bo2bo8bo2bo$13bobo4b2o4bobo$14b 3o3b2o3b3o$17bo6bo$16bo2b4o2bo$20b2o$17b3o2b3o5$16bobo4bobo$15bo3bo2bo 3bo$16bob2o2b2obo10bo$17bob4obo10b2o$35bobo$18bo4bo$18bo4bo$12b3o4b4o 4b3o2$3o$2bo10bobo$bo12b2o12bo2$27b2o$28bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 460 ZOOM 8 X 0 Y -8 THEME Book GPS 10 AUTOSTART T 0 PAUSE 3 T 105 PAUSE 2 LOOP 106 ]]
Beehive puffer reaction added to one side and removed from the other
(click above to open LifeViewer)
RLE: here Plaintext: here

References

  1. ↑ Jiahao Yu (December 6, 2020). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
  2. ↑ 2.0 2.1 2.2 praosylen (December 6, 2020). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
  3. ↑ John Winston Garth (December 6, 2020). Message in #cgol on the Conwaylife Lounge Discord server
  4. ↑ MathAndCode (December 6, 2020). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
  5. ↑ iNoMed (December 6, 2020). Message in #cgol on the Conwaylife Lounge Discord server
  6. ↑ 6.0 6.1 GUYTU6J (December 6, 2020). Re: Thread For Your Useless Discoveries (discussion thread) at the ConwayLife.com forums
  7. ↑ praosylen (December 6, 2020). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
  8. ↑ strix421 (December 6, 2020). Message in #cgol on the Conwaylife Lounge Discord server
  9. ↑ iNoMed (December 7, 2020). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
  10. ↑ GUYTU6J (December 7, 2020). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
  11. ↑ praosylen (December 7, 2020). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
  12. ↑ https://catagolue.hatsya.com/nfts/1
  13. ↑ Goldtiger997 (December 6, 2020). Message in #cgol on the Conwaylife Lounge Discord server
  14. ↑ iNoMed (December 6, 2020). Message in #cgol on the Conwaylife Lounge Discord server
  15. ↑ gooddogtyson (December 6, 2020). Message in #cgol on the Conwaylife Lounge Discord server
  16. ↑ BlinkerSpawn (December 6, 2020). Message in #cgol on the Conwaylife Lounge Discord server

External links


Retrieved from "https://conwaylife.com/w/index.php?title=Doo-dah&oldid=146077"