58P5H1V1

From LifeWiki
Revision as of 14:17, 27 July 2020 by Dvgrn (talk | contribs) (add links, note about seed constructibility)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search
58P5H1V1
20b2ob$20b2ob$19bo2bo$16b2obo2bo$22bo$14b2o3bo2bo$14b2o5bob$15bob5ob$ 16bo6b3$13b3o7b$13bo9b$11b2o10b$5b2o4bo11b$5b3o3bo11b$3bo4bo14b$3bo3bo 15b$7bo15b$2b2obobo15b$2o5bo15b$2o4b2o15b$2b4o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ TRACKLOOP 5 -1/5 -1/5 THUMBSIZE 2 GPS 5 HEIGHT 480 WIDTH 480 ]]
Pattern type Spaceship
Number of cells 58
Bounding box 24×24
Direction Diagonal
Period 5
Mod 5
Speed c/5
Speed (unsimplified) c/5
Heat 64
Discovered by Matthias Merzenich
Year of discovery 2010

58P5H1V1 is an unnamed c/5 diagonal spaceship discovered by Matthias Merzenich on September 5, 2010. In terms of its minimum population of 58 cells it is the smallest known c/5 diagonal spaceship. It provides sparks at its trailing edge which can perturb gliders, and this property was used to create the first c/5 diagonal puffers. These sparks also allow the attachment of tagalongs which was used to create the first c/5 diagonal wickstretcher in January 2011.[1] A period-1540 glide-symmetric three-ship puffer was discovered by Peter Naszvadi in March 2020.[2]

The final step for a glider synthesis of this spaceship was found by Goldtiger997 and Tanner Jacobi on April 2, 2020.[3] Goldtiger997 posted a complete 220-glider synthesis, including the base still life, on the next day,[4] making 58P5H1V1 the first spaceship of its speed to be synthesized. Reductions to the synthesis have since been made.[5][6][7][8] A 58P5H1V1 gun with period 2760 was posted by Entity Valkyrie on May 22.[9]

Goldtiger997 constructed a 1G seed for 58P5H1V1 on July 7, 2020.[10] A version of this seed constellation was soon proven to be glider-constructible, opening up the possibility of self-constructing spaceships with diagonal speeds approaching c/5, where the previous limit had been c/12 with the use of constructible Corderships.

Image gallery

the first c/5 diagonal puffer to be discovered
Download RLE: click here
the first c/5 diagonal wickstretcher to be discovered
RLE: here

See also

References

  1. Adam P. Goucher (January 26, 2011). "New c/5 diagonal technology". Game of Life News.
  2. Peter Naszvadi (March 27, 2020). Re: Thread For Your Useless Discoveries (discussion thread) at the ConwayLife.com forums
  3. Tanner Jacobi (April 2, 2020). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
  4. Goldtiger997 (April 3, 2020). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
  5. Goldtiger997 (April 4, 2020). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
  6. Tanner Jacobi (April 4, 2020). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
  7. Goldtiger997 (May 2, 2020). Message in #cgol on the Conwaylife Lounge Discord server
  8. Goldtiger997 (May 3, 2020). Message in #cgol on the Conwaylife Lounge Discord server
  9. Entity Valkyrie (May 22, 2020). Re: Construction practice (discussion thread) at the ConwayLife.com forums
  10. Goldtiger997 (July 7, 2020). One Glider Seeds (discussion thread) at the ConwayLife.com forums

External links