Difference between revisions of "3-engine Cordership"

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The '''3-engine Cordership''' is a diagonal [[:Category:Spaceships with speed c/12|c/12]] [[spaceship]] that was discovered by [[:Category:Patterns found by Paul Tooke|Paul Tooke]] on January 12, [[:Category:Patterns found in 2004|2004]]. It was the [[Cordership]] that uses the fewest number of known possible [[switch engine]]s, until the [[2-engine cordership]] was found, though the [[4-engine Cordership]] is smaller in terms of minimum population. [[:Category:Patterns found by David Bell|David Bell]] discovered in [[:Category:Patterns found in 2005|2005]] that it can be used to turn a [[lightweight spaceship]] 90 degrees as shown below.<ref>{{cite web|url=http://pentadecathlon.com/lifeNews/2005/06/new_compact_corderships.html |title=New Compact Corderships |publisher=Dave Greene |date=June 18, 2005|accessdate=June 10, 2009}}</ref> It could be [[glider synthesis|constructed]] with 15 [[glider]]s, and Tooke created a [[gun]] for this spaceship only a week after its original construction (see [[3-engine Cordership gun]]).  In March 2017 Luka Okanishi discovered a three-glider synthesis for a switch engine, which reduced the recipe to only 11 gliders.<ref>{{cite web|url=http://www.conwaylife.com/forums/viewtopic.php?f=2&t=279&p=41558#p41557 |title=Re: Thread For Your Accidental Discoveries|publisher=Luka Okanishi|date=March 12, 2017|accessdate=March 13, 2017}}</ref>
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The '''3-engine Cordership''' is a diagonal [[:Category:Spaceships with speed c/12|c/12]] [[spaceship]] that was discovered by [[:Category:Patterns found by Paul Tooke|Paul Tooke]] on January 12, [[:Category:Patterns found in 2004|2004]]. It was the [[Cordership]] that uses the fewest number of known possible [[switch engine]]s, until the [[2-engine Cordership]] was found, though the [[4-engine Cordership]] is smaller in terms of minimum population. [[:Category:Patterns found by David Bell|David Bell]] discovered in [[:Category:Patterns found in 2005|2005]] that it can be used to turn a [[lightweight spaceship]] 90 degrees as shown below.<ref>{{cite web|url=http://pentadecathlon.com/lifeNews/2005/06/new_compact_corderships.html |title=New Compact Corderships |publisher=Dave Greene |date=June 18, 2005|accessdate=June 10, 2009}}</ref> It could be [[glider synthesis|constructed]] with 15 [[glider]]s, and Tooke created a [[gun]] for this spaceship only a week after its original construction (see [[3-engine Cordership gun]]).  In March 2017 Luka Okanishi discovered a three-glider synthesis for a switch engine, which reduced the recipe to only 11 gliders.<ref>{{cite web|url=http://www.conwaylife.com/forums/viewtopic.php?f=2&t=279&p=41558#p41557 |title=Re: Thread For Your Accidental Discoveries|publisher=Luka Okanishi|date=March 12, 2017|accessdate=March 13, 2017}}</ref>
  
 
The 3-engine Cordership can easily be destroyed by three [[eater 2]]s and four [[block]]s, as shown below. This cleanup reaction was found by [[Jason Summers]].
 
The 3-engine Cordership can easily be destroyed by three [[eater 2]]s and four [[block]]s, as shown below. This cleanup reaction was found by [[Jason Summers]].

Revision as of 18:49, 31 December 2017

3-engine Cordership
31b3o24b$32bo25b$32bo2bo22b$32bo2bo22b$33bobo22b$48b2o8b$48b2o8b3$32bo 25b$31bobo24b$32bo25b$49bo8b$48bo7b2o$30b4o22b2o$30b2o3bo10bo11b$31bo 4bo9bobo9b$33bob2o10bo10b$34bo23b3$42bobob2o10b$25bo16bobo13b$24b3o17b o2bo10b$43bo3bo10b$24b3o16b4o2b2o7b$25b2ob2o14bo5b2o6b$27bo21bo8b3$b3o 54b$2bo55b$2bo2bo52b$2bo2bo52b$3bobo52b$18b2o38b$18b2o38b$24bo33b$23b 3o32b$2bo19b2ob2o31b$bobo18bobo33b$2bo19bo35b3$4o54b$2o3bo13bo38b$bo4b o11bobo37b$3bob2o11bo39b$4bo15b2o36b$21bo36b$18b3o37b$19b2o37b$16bo41b $16b2o40b$16b2o40b$6b2o6b2o42b$6b2o4b2o44b$12b2obo42b$14b2o42b5$14b2o 42b$14b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ ZOOM 4 TRACKLOOP 96 -1/12 -1/12 THUMBSIZE 2 GPS 12 HEIGHT 480 WIDTH 480 ]]
Pattern type Spaceship
Family Cordership
Number of cells 149
Bounding box 58×65
Direction Diagonal
Period 96
Mod 48
Speed c/12
Speed (unsimplified) Unknown
Heat 156.1
Discovered by Paul Tooke
Year of discovery 2004

The 3-engine Cordership is a diagonal c/12 spaceship that was discovered by Paul Tooke on January 12, 2004. It was the Cordership that uses the fewest number of known possible switch engines, until the 2-engine Cordership was found, though the 4-engine Cordership is smaller in terms of minimum population. David Bell discovered in 2005 that it can be used to turn a lightweight spaceship 90 degrees as shown below.[1] It could be constructed with 15 gliders, and Tooke created a gun for this spaceship only a week after its original construction (see 3-engine Cordership gun). In March 2017 Luka Okanishi discovered a three-glider synthesis for a switch engine, which reduced the recipe to only 11 gliders.[2]

The 3-engine Cordership can easily be destroyed by three eater 2s and four blocks, as shown below. This cleanup reaction was found by Jason Summers.

Incremental construction

Dave Greene discovered a glider synthesis for upgrading a switch engine to a wing, which can be repeated to form the complete Cordership. Adam P. Goucher then built a Herschel conduit to convert a glider into a 3-engine Cordership.[3]

Image gallery

3-engine Cordership eater. It is possible to replace the eater2s with eater1s.
RLE: here
3-engine Cordership about to reflect a lightweight spaceship by 90 degrees
RLE: here

See also

References

  1. "New Compact Corderships". Dave Greene (June 18, 2005). Retrieved on June 10, 2009.
  2. "Re: Thread For Your Accidental Discoveries". Luka Okanishi (March 12, 2017). Retrieved on March 13, 2017.
  3. "First complete glider-to-Cordership converter". Dave Greene (February 7, 2009). Retrieved on June 15, 2009.

External links