Difference between revisions of "Spider"
m (Synth cost down from 488 to 382 with Goldtiger997's improved last step) |
DroneBetter (talk | contribs) m (if the gun's period is noted, so too should be the converter's repeat time (also note the respective bounding boxes)) |
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|isorulemin = B3/S23-cy | |isorulemin = B3/S23-cy | ||
|isorulemax = B34cekq5e6c8/S234ceq5-ciqr6acn7c8 | |isorulemax = B34cekq5e6c8/S234ceq5-ciqr6acn7c8 | ||
|synthesis = | |synthesis = 205 | ||
|synthesisRLE = true | |synthesisRLE = true | ||
|plaintext = true | |plaintext = true | ||
|rle = true | |rle = true | ||
|animated = true | |animated = true | ||
|viewerconfig = #C [[ GPS 5 TRACKLOOP 5 0 -1/5 | |viewerconfig = #C [[ HEIGHT 360 WIDTH 600 THUMBSIZE 2 ZOOM 16 GPS 5 TRACKLOOP 5 0 -1/5 ]] | ||
|apgcode = xq5_ug1hmgc865da808ad568cgmh1guz124w6yb6w421 | |apgcode = xq5_ug1hmgc865da808ad568cgmh1guz124w6yb6w421 | ||
|pentadecathlonid = 58P5H1V0.1 | |pentadecathlonid = 58P5H1V0.1 | ||
|eppsteinid = 18216 | |eppsteinid = 18216 | ||
}} | }} | ||
'''Spider''' is | '''Spider''' is a [[c/5 orthogonal]] [[spaceship]] that was discovered by [[David Bell]] on April 14, {{year|1997}}.<ref>{{LinkCallahan|patterns/newc5/newc5.html|patternname=David Bell's c/5 spaceship}}</ref> It is the smallest known c/5 orthogonal spaceship. Its side [[spark]]s have proven to be very useful in constructing [[puffer]]s and [[rake]]s. | ||
On March 7, {{year|2019}}, [[Martin Grant]] found a 601-glider [[ | On March 7, {{year|2019}}, [[Martin Grant]] found a 601-glider [[synthesis]] of spider, making it the first c/5 orthogonal spaceship to be synthesized.<ref name="post72705" /> Optimizations have since been found to reduce the glider count.<ref name="post76321" /><ref name="post86121" /><ref name="post87949" /><ref name="post92253" /><ref name="j4119362975" /><ref name="j4119623321" /><ref name="j4143876854" /><ref name="j4431914116" /><ref name="j4436166329" /> | ||
A {{times|15426|15954}} p11040 spider [[gun]] was constructed by [[Entity Valkyrie]] on January 26, {{year|2020}},<ref name="post88186" /> and a {{times|10083|9478}} glider-to-spider [[converter]] with a minimum repeat time of 2619 generations was constructed by [[Goldtiger997]] on March 12.<ref name="post91054" /> | |||
{{POTY|name=The spider synthesis|year=2019|rank=2|behind=[[David Hilbert]]}} | |||
==See also== | ==See also== | ||
*[[Pre-pulsar spaceship]] | * [[Pre-pulsar spaceship]] | ||
*[[Snail]] | * [[Snail]] | ||
==References== | ==References== | ||
<references> | <references> | ||
<ref name="j4119362975">{{CiteCatagolueJob|job=4119362975|date=April 15, 2023}}</ref> | |||
<ref name="j4119623321">{{CiteCatagolueJob|job=4119623321|date=April 15, 2023}}</ref> | |||
<ref name="j4143876854">{{CiteCatagolueJob|job=4143876854|date=April 19, 2023}}</ref> | |||
<ref name="j4431914116">{{CiteCatagolueJob|job=4431914116|date=June 7, 2023}}</ref> | |||
<ref name="j4436166329">{{CiteCatagolueJob|job=4436166329|date=June 8, 2023}}</ref> | |||
<ref name="post72705">{{LinkForumThread | <ref name="post72705">{{LinkForumThread | ||
|format = ref | |format = ref | ||
|p = 72705 | |||
|title = Re: Small Spaceship Syntheses | |title = Re: Small Spaceship Syntheses | ||
|author = Martin Grant | |author = Martin Grant | ||
|date = March 7, 2019 | |date = March 7, 2019 | ||
Line 47: | Line 55: | ||
<ref name="post76321">{{LinkForumThread | <ref name="post76321">{{LinkForumThread | ||
|format = ref | |format = ref | ||
|p = 76321 | |||
|title = Re: Small Spaceship Syntheses | |title = Re: Small Spaceship Syntheses | ||
|author = Jeremy Tan | |author = Jeremy Tan | ||
|date = May 18, 2019 | |date = May 18, 2019 | ||
}}</ref> | |||
<ref name="post86121">{{LinkForumThread | |||
|format = ref | |||
|p = 86121 | |||
|title = Re: Small Spaceship Syntheses | |||
|author = Goldtiger997 | |||
|date = December 9, 2019 | |||
}}</ref> | |||
<ref name="post87949">{{LinkForumThread | |||
|format = ref | |||
|p = 87949 | |||
|title = Re: Small Spaceship Syntheses | |||
|author = Tanner Jacobi | |||
|date = January 22, 2020 | |||
}}</ref> | |||
<ref name="post88186">{{LinkForumThread | |||
|format = ref | |||
|p = 88186 | |||
|title = Re: Small Spaceship Syntheses | |||
|author = Entity Valkyrie | |||
|date = January 26, 2020 | |||
}}</ref> | |||
<ref name="post91054">{{LinkForumThread | |||
|format = ref | |||
|p = 91054 | |||
|title = Re: Stable signal converters | |||
|author = Goldtiger997 | |||
|date = March 12, 2020 | |||
}}</ref> | |||
<ref name="post92253">{{LinkForumThread | |||
|format = ref | |||
|p = 92253 | |||
|title = Re: Small Spaceship Syntheses | |||
|author = Tanner Jacobi | |||
|date = March 24, 2020 | |||
}}</ref> | }}</ref> | ||
</references> | </references> | ||
==External links== | ==External links== | ||
{{LinkLexicon|lex_s.htm#spider}} | * {{LinkLexicon|lex_s.htm#spider}} | ||
{{LinkEppstein|18216|patternname=The Spider (glider 18216)}} | <!-- * {{LinkEppstein|18216|patternname=The Spider (glider 18216)}} The Spider (glider 18216) at David Eppstein's Glider Database http://fano.ics.uci.edu/ca/gliders/g18216.html --> | ||
{{LinkCatagolue|xq5_ug1hmgc865da808ad568cgmh1guz124w6yb6w421}} | * {{LinkEppsteinRule|rule=b3s23|rulename=Life (B3/S23)|archivedate=20160309235206}} <!-- The Spider (glider 18216), size 27x8, speed c/5, orthogonal --> | ||
{{LinkPentadecathlonObject|58P5H1V0.1}} | * {{LinkCatagolue|xq5_ug1hmgc865da808ad568cgmh1guz124w6yb6w421}} | ||
* {{LinkPentadecathlonObject|id=58P5H1V0.1|archivedate=20210716111048}} | |||
{{Symmetry|orthogonal2}} | {{Symmetry|orthogonal2}} |
Latest revision as of 21:11, 20 October 2023
Spider | |||||||||||
View animated image | |||||||||||
View static image | |||||||||||
Pattern type | Spaceship | ||||||||||
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Number of cells | 58 | ||||||||||
Bounding box | 27 × 8 | ||||||||||
Direction | Orthogonal | ||||||||||
Period | 5 | ||||||||||
Mod | 5 | ||||||||||
Speed | c/5 | c/5 | ||||||||||
Heat | 53.6 | ||||||||||
Discovered by | David Bell | ||||||||||
Year of discovery | 1997 | ||||||||||
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Spider is a c/5 orthogonal spaceship that was discovered by David Bell on April 14, 1997.[1] It is the smallest known c/5 orthogonal spaceship. Its side sparks have proven to be very useful in constructing puffers and rakes.
On March 7, 2019, Martin Grant found a 601-glider synthesis of spider, making it the first c/5 orthogonal spaceship to be synthesized.[2] Optimizations have since been found to reduce the glider count.[3][4][5][6][7][8][9][10][11]
A 15426 × 15954 p11040 spider gun was constructed by Entity Valkyrie on January 26, 2020,[12] and a 10083 × 9478 glider-to-spider converter with a minimum repeat time of 2619 generations was constructed by Goldtiger997 on March 12.[13] The spider synthesis ranked second place in the Pattern of the Year 2019 competition on the ConwayLife.com forums, behind David Hilbert.[14]
See also
References
- ↑ David Bell's c/5 spaceship at Paul Callahan's Page of Conway's Life Miscellany
- ↑ Martin Grant (March 7, 2019). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
- ↑ Jeremy Tan (May 18, 2019). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
- ↑ Goldtiger997 (December 9, 2019). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
- ↑ Tanner Jacobi (January 22, 2020). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
- ↑ Tanner Jacobi (March 24, 2020). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
- ↑ shinjuku (#4119362975) (April 15, 2023). Job triggered by Adam P. Goucher at GitLab Catagolue project.
- ↑ shinjuku (#4119623321) (April 15, 2023). Job triggered by Adam P. Goucher at GitLab Catagolue project.
- ↑ shinjuku (#4143876854) (April 19, 2023). Job triggered by Adam P. Goucher at GitLab Catagolue project.
- ↑ shinjuku (#4431914116) (June 7, 2023). Job triggered by Adam P. Goucher at GitLab Catagolue project.
- ↑ shinjuku (#4436166329) (June 8, 2023). Job triggered by Adam P. Goucher at GitLab Catagolue project.
- ↑ Entity Valkyrie (January 26, 2020). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
- ↑ Goldtiger997 (March 12, 2020). Re: Stable signal converters (discussion thread) at the ConwayLife.com forums
- ↑ Dave Greene (March 16, 2020). Re: POTY 2019 Voting (discussion thread) at the ConwayLife.com forums
External links
- Spider at the Life Lexicon
- Life (B3/S23) at David Eppstein's Glider Database
- Spider at Adam P. Goucher's Catagolue
- 58P5H1V0.1 at Heinrich Koenig's Game of Life Object Catalogs
- Patterns
- Spaceships with 58 cells
- Periodic objects with minimum population 58
- Patterns with 58 cells
- Patterns found by David Bell
- Patterns found in 1997
- Patterns that can be constructed with between 200 and 299 gliders
- Spaceships
- Spaceships with period 5
- Orthogonal spaceships
- Spaceships with speed c/5
- Spaceships with unsimplified speed c/5
- Spaceships with heat 53
- Spaceships with mod 5
- Pattern of the Year top contenders
- Patterns with bilateral orthogonal symmetry