Difference between revisions of "Weekender"

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{{Spaceship
 
{{Spaceship
|name         = Weekender
+
|name             = Weekender
|pname       = weekender
+
|pname           = weekender
|c           = 36
+
|c               = 36
|bx           = 18
+
|bx               = 18
|by           = 12
+
|by               = 12
|dir         = Orthogonal
+
|dir             = Orthogonal
|p           = 7
+
|p               = 7
|m           = 7
+
|m               = 7
|s           = 2c/7
+
|s               = 2c/7
|h           = 45.1
+
|z                = 2c/7
|discoverer   = David Eppstein
+
|h               = 45.1
|discoveryear = 2000
+
|discoverer       = David Eppstein
|synthesis    = 79
+
|discoveryear     = 2000
|synthesisRLE = true
+
|rulemin          = B3/S23
|life105     = true
+
|rulemax          = B37/S23
|life106      = true
+
|rulespecial     = [[Conway's Game of Life|Conway Life]]
|plaintext   = true
+
|isorulemin      = B3-ky/S23-c
|rle         = true
+
|isorulemax      = B2n34cqz5ckny6-ik7/S234cekwyz5-aijq6ein7e
|animated     = true
+
|synthesis        = 79
|viewerconfig = #C [[ GPS 7 TRACKLOOP 7 0 -2/7 THUMBSIZE 2 ]]
+
|synthesisRLE    = true
 +
|plaintext       = true
 +
|rle             = true
 +
|animated         = true
 +
|viewerconfig     = #C [[ GPS 7 TRACKLOOP 7 0 -2/7 THUMBSIZE 2 ]]
 +
|apgcode          = xq7_7dfxg88gxfd7zw123u2222u321
 +
|pentadecathlonid = 36P7H2V0.1
 +
|eppsteinid      = 14105
 
}}
 
}}
 
'''Weekender''' is a [[2c/7 orthogonal]] [[spaceship]] that was found by [[:Category:Patterns found by David Eppstein|David Eppstein]] on January 12, [[:Category:Patterns found in 2000|2000]].<ref>{{CiteSummersPattern|name=jslife}}</ref> On April 27, 2000, [[:Category:Patterns found by Stephen Silver|Stephen Silver]] found a [[tagalong]] for a pair of weekenders (shown below). At present, n weekenders pulling n-1 tagalongs constitute the only known spaceships with [[speed]] 2c/7, besides self-sustaining loops of [[2c/7 orthogonal#Rakes|weekender conduits]]. These were the only known [[:Category:Spaceships_with_period_7|period-7]] spaceships until the discovery of [[lobster (spaceship)|Lobster]] in [[:Category:patterns found in 2011|2011]], [[loafer]] in [[:Category:patterns found in 2013|2013]] and [[spaghetti monster]] in 2016.
 
'''Weekender''' is a [[2c/7 orthogonal]] [[spaceship]] that was found by [[:Category:Patterns found by David Eppstein|David Eppstein]] on January 12, [[:Category:Patterns found in 2000|2000]].<ref>{{CiteSummersPattern|name=jslife}}</ref> On April 27, 2000, [[:Category:Patterns found by Stephen Silver|Stephen Silver]] found a [[tagalong]] for a pair of weekenders (shown below). At present, n weekenders pulling n-1 tagalongs constitute the only known spaceships with [[speed]] 2c/7, besides self-sustaining loops of [[2c/7 orthogonal#Rakes|weekender conduits]]. These were the only known [[:Category:Spaceships_with_period_7|period-7]] spaceships until the discovery of [[lobster (spaceship)|Lobster]] in [[:Category:patterns found in 2011|2011]], [[loafer]] in [[:Category:patterns found in 2013|2013]] and [[spaghetti monster]] in 2016.
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{{LinkEppstein|14105|patternname=The Weekender (glider 14105)}}
 
{{LinkEppstein|14105|patternname=The Weekender (glider 14105)}}
 
{{LinkCatagolue|xq7_7dfxg88gxfd7zw123u2222u321}}
 
{{LinkCatagolue|xq7_7dfxg88gxfd7zw123u2222u321}}
 +
{{LinkPentadecathlonObject|36P7H2V0.1}}
  
 
[[Category:Non-monotonic spaceships]]
 
[[Category:Non-monotonic spaceships]]
 +
{{Symmetry|orthogonal2}}

Latest revision as of 01:34, 28 January 2019

Weekender
#N Weekender #O David Eppstein #C An orthogonal period 7 spaceship with speed 2c/7. #C www.conwaylife.com/wiki/Weekender x = 16, y = 11, rule = B3/S23 bo12bo$bo12bo$obo10bobo$bo12bo$bo12bo$2bo3b4o3bo$6b4o$2b4o4b4o2$4bo6bo $5b2o2b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 7 TRACKLOOP 7 0 -2/7 THUMBSIZE 2 ]]
Pattern type Spaceship
Number of cells 36
Bounding box 18×12
Direction Orthogonal
Period 7
Mod 7
Speed 2c/7
Speed (unsimplified) 2c/7
Heat 45.1
Discovered by David Eppstein
Year of discovery 2000

Weekender is a 2c/7 orthogonal spaceship that was found by David Eppstein on January 12, 2000.[1] On April 27, 2000, Stephen Silver found a tagalong for a pair of weekenders (shown below). At present, n weekenders pulling n-1 tagalongs constitute the only known spaceships with speed 2c/7, besides self-sustaining loops of weekender conduits. These were the only known period-7 spaceships until the discovery of Lobster in 2011, loafer in 2013 and spaghetti monster in 2016.

Despite the relative simplicity of its components, a glider synthesis for the weekender had been elusive since its discovery. A weekender synthesis was completed on January 25, 2015, 15 years after its discovery (and coincidentally, on a weekend).[2]

On September 26, 2015 Chris Cain announced a p444 weekender gun based on a 79-glider synthesis, as well as a p451/p457+ glider-to-weekender converter.[3]

Image gallery

Two weekenders followed by a tagalong
RLE: here

See also

References

  1. Jason Summers' jslife pattern collection.
  2. Martin Grant (January 25, 2015). "Re: Small Spaceship Syntheses". Retrieved on January 25, 2015.
  3. Chris Cain (September 26, 2015). "Re: Small Spaceship Syntheses". Retrieved on October 7, 2015.

External links


  • 36P7H2V0.1 at Heinrich Koenig's Game of Life Object Catalogs