Crotchet ship

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A crotchet ship is a c/3 spaceship which contains a wave of one or more crotchet components on one end. The other end must be stabilized with another component, typically an edge-repair spaceship.[1] Because a crotchet component can be attached to another, such a ship is infinitely extensible.

The following is a typical crotchet ship containing four extra crotchet components attached to a crotchet which is integral to the edge-repair spaceship (top-right):

x = 40, y = 16 34bo$32b3ob3o$31boo6bo$26bo3bobbo3boo$25b4o$20bo3bo3bo$19b4o4bobbo$14b o3bo3bo6bo$13b4o4bobbo$8bo3bo3bo6bo$7b4o4bobbo$bbo3bo3bo6bo$b4o4bobbo$ o3bo6bo$bobobbo$5bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ]]
A typical crotchet ship
(click above to open LifeViewer)

Goldtiger997 discovered a reaction which can add a new crotchet component to the end of an existing crotchet ship. This allows the whole series of crotchet ships to be constructible since the initial edge-repair spaceship can also be constructed, as shown below.

x = 59, y = 68 41bo$40bo$40b3o4$6bobo$7boo31bo$7bo32bobo$40boo17$18bo$16bobo$17boo7$ 30bo$29boo$29bobo5$14bobo$15boo8b3o$15bo9bo$26bo$7b3o$9bo$bo6bo$boo$ob o50bo$27boo22b3ob3o$27bobo20boo6bo$27bo17bo3bobbo3boo$44b4o$39bo3bo3bo $38b4o4bobbo$33bo3bo3bo6bo$32b4o4bobbo$27bo3bo3bo6bo$26b4o4bobbo$25bo 3bo6bo$26bobobbo$30bo$$6boo$5bobo$7bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 GPS 18 THEME Book ZOOM 8 HEIGHT 560 AUTOSTART LOOP 200 PAUSE 3 ]]
Adding a new crotchet to a crotchet ship
(click above to open LifeViewer)

There are various ways to remove the end crotchet from a crotchet ship. For example, a boat can be used for this purpose without being destroyed.

x = 22, y = 25 boo$bobo$bbo14$14bo$13b4o$8bo3bo3booboo$7b4o5bobboo$bbo3bo3bo7bobbo$b 4o4bobbo$o3bo6bo$bobobbo$5bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 GPS 18 ZOOM 8 HEIGHT 400 AUTOSTART LOOP 120 PAUSE 3 ]]
A boat positioned to remove the end crotchet
(click above to open LifeViewer)


x = 20, y = 52, rule = B3/S23 15b2o$9b2o5bo$9bobob3o$3bo7bobo$3b3o5b2o$6bo$5b2o2$b2o$bobo14b2o$2bo 15b2o4$8bo$7b4o$2bo3bo3b2ob2o$b4o5bo2b2o$o3bo7bo2bo$bobo2bo$5bo26$7b3o $6bo3b2obo$b3o2b3o3b3o$obob3o4bo3bo$bo4bo7bo$4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 GPS 18 ZOOM 8 HEIGHT 520 AUTOSTART LOOP 160 PAUSE 3 ]]
By adding boats to Goldtiger997's edge-repair spaceship to glider converter, a converter can be made for any sized crotchet ship[2]
(click above to open LifeViewer)

The end crotchet can react with various still lifes to release a glider while removing the crotchet. This glider can then be used to rebuild the still life so that the reaction can be repeated, and can also release an LWSS traveling upwards to eventually produce a glider convoy which can add the crotchet back onto the advancing ship. This enables a psuedo-Heisenburp reaction to be built, the first of which was constructed on February 1, 2023.[3]

References

  1. David Bell (February 1, 2023). Re: Suggested LifeWiki edits (discussion thread) at the ConwayLife.com forums
  2. Goldtiger997 (January 18, 2023). Re: Stable signal converters (discussion thread) at the ConwayLife.com forums
  3. David Bell (February 1, 2023). Re: Stable signal converters (discussion thread) at the ConwayLife.com forums