http://conwaylife.com/w/api.php?action=feedcontributions&user=Freywa&feedformat=atomLifeWiki - User contributions [en]2019-09-22T16:51:01ZUser contributionsMediaWiki 1.23.3http://conwaylife.com/wiki/P72_quasi-shuttleP72 quasi-shuttle2019-09-10T08:03:26Z<p>Freywa: Will cost 26 gliders in latest update</p>
<hr />
<div>{{Oscillator<br />
|name = p72 quasi-shuttle<br />
|pname = p72quasishuttle<br />
|c = 84<br />
|bx = 37<br />
|by = 23<br />
|p = 72<br />
|m = 72<br />
|h = 80.6<br />
|v = 0.96<br />
|sv = 0.59<br />
|discoverer = Jason Summers<br />
|discoveryear = 2005<br />
|rulemin = B3/S23<br />
|rulemax = B3/S23<br />
|rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|isorulemin = B3/S23<br />
|isorulemax = B3/S234c5ek6i7e<br />
|synthesis = 26<br />
|plaintext = true<br />
|rle = true<br />
|viewerconfig = #C [[ THUMBSIZE 2 Z 12 GPS 5 LOOP 72 ]]<br />
|apgcode = xp72_gk2gb3y8ggggy1oomewccz11yc168972y0cczoo0gyaomhpe4xgjjz0240dcyh1167w33<br />
|pentadecathlonid = 84P72.1<br />
}}<br />
<br />
'''P72 quasi-shuttle''' is a [[period]] [[:Category:Oscillators with period 72|72]] [[oscillator]] (a [[twin bee shuttle]] variant) with found by [[Jason Summers]] in August [[:Category:Patterns found in 2005|2005]]. It consists of two [[B-heptomino|B-heptominoes]] being [[hassle|hassled]] by two [[figure eight|figure eights]] and two [[unix|unices]]. In 18 generations the [[B-heptomino]]es are flipped into a [[century|centuries]] and a pair of [[block]]s by [[unix|unices]], which then reacts with the blocks and [[figure eight]]s to be flipped back into [[B-heptomino]]es in 61 generations, but with extra blocks. The extra blocks move the B-heptominoes forward without leaving extra centuries. Although this looks at first sight like a [[shuttle]], it isn't really, because each side of the oscillator uses a different hassling reaction. Like a regular [[twin bee shuttle]], it can reflect gliders.<br />
<br />
==External links==<br />
{{LinkLexicon|lex_p.htm#p72quasishuttle|name=p72 quasi-shuttle}}<br />
{{LinkCatagolue|xp72_gk2gb3y8ggggy1oomewccz11yc168972y0cczoo0gyaomhpe4xgjjz0240dcyh1167w33|patternname=p72 quasi-shuttle}}<br />
{{LinkPentadecathlonObject|84P72.1}}<br />
<br />
{{Symmetry|orthogonal2}}<br />
{{DISPLAYTITLE:p72 quasi-shuttle}}</div>Freywahttp://conwaylife.com/wiki/G-to-LWSSG-to-LWSS2019-07-16T13:47:24Z<p>Freywa: The year</p>
<hr />
<div>{{Conduit<br />
|name = G-to-LWSS<br />
|pname = gtolwss<br />
|type = Stable<br />
|c = 432<br />
|bx = 168<br />
|by = 75<br />
|conduitfor = Glider<br />
|convertsto = LWSS<br />
|recovery = 78<br />
|rle = true<br />
|discoverer = Chris Cain<br />
|discoveryear = 2015<br />
|viewerconfig = #C [[ THUMBSIZE 2 ZOOM 6 GPS 60 LOOP 780 WIDTH 1100 HEIGHT 600 T 148 PAUSE 0 T 221 PAUSE 0 T 403 PAUSE 0 T 461 PAUSE 0 T 502 PAUSE 0 T 520 PAUSE 0 T 560 PAUSE 0 T 619 PAUSE 0 ]]<br />
}}<br />
'''G-to-LWSS''' is a glider-to-[[LWSS]] [[converter]]. It may refer to the specific converter shown in the infobox at right, constructed by [[Chris Cain]] in October {{year|2015}}. Its [[recovery time]] is 78 [[tick]]s, matching the recovery time of the [[syringe]].<ref name="post23909" /><br />
<br />
Many other composite G-to-LWSS converters have been constructed. The first G-to-LWSS was constructed by [[Paul Callahan]] on May 17, {{year|1997}}<!-- x = 305, y = 223, rule = B3/S23<br />
66b2o$66bo11bo$38b2o24bobo11b3o$39bo24b2o15bo14bo$39bobo38b2o12b3o$40b<br />
2o2b2o47bo$44b2o47b2o3$92b2o$73b2o17b2o$73b2o6$38b2o36b2o$37bobo16b2o<br />
19bo$37bo18bobo15b3o$36b2o20bo15bo$52b2o4b2o19b2o$52bobo25bo$54bo22b3o<br />
$45b2o7b2o21bo$45b2o18b2o$29b2o34bo$30bo32bobo$23b2o5bobo30b2o$24bo6b<br />
2o62b2o$24bobo68bo$25b2o69b3o$98bo$231b2o$231b2o3$233b2o$87b2o144b2o$<br />
87b2o157b2o$171bo74bo$78b2obo89b3o70bobo$23b2o53bob2o92bo22b2o45b2o$<br />
24bo49b2o97b2o22bo50b2o$24bobo47bo120bobo50b2o$25b2o2b2o41bobo78b2o40b<br />
2o$29b2o41b2o23b2o47b2o5b2o113bobo$96bobo47b2o120bo3bo12b2o$96bo175bo<br />
12b2o$95b2o171bo4bo4b2o$30b2o116b2o17b2o103bo5b2o$24b2o4b2o116b2o17bo<br />
67b2o31bo3bo$24b2o116b2o21bobo36b2o29b2o31bobo$76b2o64b2o21b2o37b2o$<br />
77bo$77bobo177b3o$78b2o15b2o119bo39bo3bo$95b2o118bobo37bo5bo$216b2o38b<br />
o3bo6b2o15b3o$173b2o32b2o48b3o7bobo13bo3bo$78b2o93b2o11b2o20bo48b3o2b<br />
2o6bo7b2o2bo5bo$77bobo60b2o44bo20bo53bo2bo2bo2bo7b2o3bo3bo$77bo63bo45b<br />
3o17b2o53b2o6bo13b3o$76b2o63bobo45bo52b2o23bobo14b3o$142b2o98b2o23b2o$<br />
257bo$171b2o84bo$171bobo19b2o62bo$173bo19bo92b3o$14b2o78b2o77b2o16bobo<br />
61bo25bo3b2ob2o$15bo78bo96b2o62bo15b3o5b2o4b2ob2o10b2o$15bobo77b3o171b<br />
2o2bo6b2o3b5o10b2o$16b2o79bo157bo13b2o2b2o9b2o3b2o$40b2o212bobo12b2o$<br />
40b2o$176bo77b3o$137b2o35b3o89bo$78b2o57b2o34bo92bo18b2o$79bo93b2o79b<br />
3o9bo$76b3o222bo$38b2o36bo177bobo43b3o$38bo103b2o111bo14b5o12b2o10b5o$<br />
39b3o100b2o124bobobobo12b2o9b2o3b2o$41bo96b2o115bo$39b2o97b2o115bo13bo<br />
2bo$39bo229b2obo$37bobo46b2o194b2o16b3o$37b2o47b2o56b2o139b2o13b3o$<br />
144b2o14b2o23bo99bo10b2o$93bob2o64bo22bobo98bo10b2o$93b2obo61b3o8b2o<br />
14bo93b2o12b2o6b2o$19bo138bo11bo106bo3bo10b3o5bo2bo$19b3o145b3o90b2o9b<br />
2o3bo5bo10b2o6b2o$22bo124bo19bo92bo10b2o2b2obo3bo13b2o$o20b2o53b2o69b<br />
3o111bo14bo5bo13b2o$3o4b2o67bobo71bo31b2o76b2o15bo3bo$3bo3b2o30b2o37bo<br />
70b2o31bobo94b2o$2b2o35b2o37b2o104bo$184b2o$166bob2o$166b2obo$97b2o$<br />
97bo77b2o$21bo73bobo77b2o$20bobo55b2o15b2o$19bo2bo55b2o$20b2o2$95b2o<br />
47b2o$95bobo46b2o$97bo$97b2o$6b2o138b2o$6b2o138b2o$159b2o$37b2o120bo$<br />
37b2o118bobo$79b2o29b2o45b2o$44b2o34bo29bo50b2o2b2o$44bo32b3o28bobo50b<br />
2o3bo$42bobo32bo30b2o56bobo$42b2o123b2o4$5b2o$4bobo141b2o$4bo43bo68b2o<br />
29b2o$3b2o43b3o66b2o$51bo14bo$50b2o12b3o$63bo65bo$63b2o15b2o21b2o23bob<br />
o$80b2o21bobo23b2o37b2o15b2o$86b2o17bo14b2o46b2o15bobo$62b2o22b2o17b2o<br />
14bo65bo$43b2o17b2o56bo66b2o$43b2o75b2o$84b2o69b2o$84b2o5b2o62b2o21bo$<br />
91b2o83b3o$6b2o167bo$6b2o22b2o143b2o$12b2o16bobo13b2o$12b2o18bo14bo$<br />
32b2o10b3o$44bo$10b2o37b2o$10b2o5b2o31bo$17b2o28b3o$47bo2$144bo$144b3o<br />
35b2o$147bo34b2o$102b2o42b2o$103bo$103bobo$104b2o2b2o67b2o$108b2o67b2o<br />
$181b2o$181b2o2$137b2o$57b2o8b2o68b2o36b2o$57b2o8b2o3bo87b2o13b2o$71bo<br />
bo86bobo$48b2obo20bobo87bo$48bob2o22bo75b2o10b2o$67b2o5b2o74bo$67b2o<br />
33b2o36b2o9b3o$77b2o22bobo16b2o19bo11bo$77bo23bo18bobo17bo$75bobo22b2o<br />
20bo17b2o$75b2o39b2o4b2o$116bobo$118bo$109b2o7b2o$109b2o5$71b2o$71bobo<br />
$73bo$73b2o3$117bo$115b3o$114bo$56b2o56b2o$56b2o$65b2o$65bobo10b2o7b2o<br />
$67bo9bobo7b2o$67b2o6b3obobo$74bo5b2o$74b2o4$121b2o$121b2o4$116b2o$<br />
116b2o$120b2o$47b2o71b2o$47b2o$53b2o$53b2o59b2o$114b2o2$51b2o$51b2o5b<br />
2o$58b2o29b2o$89bo$90b3o$92bo!-->. [[Stephen Silver]] constructed a smaller version, using the same [[glider]]/[[Herschel]]/[[block]] interaction shown at right, on September 24, 1997<!-- # Still glider-to-LWSS converter<br />
x = 241, y = 154, rule = B3/S23<br />
222b2o$222b2o3$224b2o$224b2o$237b2o$162bo74bo$162b3o70bobo$165bo22bo<br />
46b2o$164b2o20b3o50b2o$185bo53b2o$144b2o39b2o$137b2o5b2o$137b2o3$139b<br />
2o17b2o$139b2o17bo67b2o2b2o$133b2o21bobo36b2o29b2ob2o$133b2o21b2o37b2o<br />
34bo3$207bo$206bobo$207b2o$164b2o32b2o$164b2o11b2o20bo$177bo20bo$133bo<br />
44b3o17b2o$133b3o44bo52b2o$136bo96b2o$135b2o$162b2o$162bobo19b2o$164bo<br />
19bo$164b2o16bobo$182b2o5$167bo$128b2o35b3o$128b2o34bo$164b2o3$133b2o$<br />
133b2o$129b2o$129b2o3$135b2o$135b2o14b2o23bo$152bo22bobo$149b3o8b2o14b<br />
o$149bo11bo$158b3o$158bo2$173b2o$173bobo$175bo$175b2o$157bob2o$157b2ob<br />
o2$166b2o$166b2o5$135b2o$135b2o$57bo$56bobo$56bobo78b2o$55b2ob3o76b2o$<br />
61bo88b2o$55b2ob4o2bo85bo$55b2obo3b3o83bobo$61bo39bo46b2o$33b2o26b2o<br />
36b3o50b2o2b2o$34bo50bo12bo53b2o3bo$34bobo37b2o7b3o12b2o57bobo$35b2o<br />
38bo6bo75b2o$75bobo4b2o$76b2o3$29bob2o106b2o$29b2obo75b2o29b2o$108b2o$<br />
38b2o$38b2o$120bo$119bobo$120b2o37b2o15b2o$111b2o46b2o15bobo$50b2o3b2o<br />
55bo65bo$51bo3bo55bo66b2o$48b3o5b3o52b2o$26bo21bo9bo87b2o$24b3o61b2o<br />
56b2o21bo$23bo64bo78b3o$23b2o57b2obo3b3o74bo$82b2ob4o2bo74b2o$88bo$78b<br />
2o2b2ob3o$70b2o6bo4bobo$71bo7b4o2bo$68b3o12b2o$30bob2o34bo12b2o$30b2ob<br />
o46bobo$81bo$90b2o7b2o$63bo9bo15bobo7b2o34bo$63b3o5b3o13b3obobo41b3o<br />
35b2o$51b2o13bo3bo15bo5b2o44bo34b2o$51bo13b2o3b2o14b2o49b2o$52bo$51b2o<br />
$168b2o$168b2o$172b2o$172b2o2$48b2o78b2o$48b2o78b2o36b2o$151b2o13b2o$<br />
151bobo$153bo$141b2o10b2o$141bo$29b2o48b2o50b2o9b3o$29bo29bo6b2o11bobo<br />
50bo11bo$30b3o24b3o6b2o13bo49bo$32bo23bo24b2o48b2o$42b2o12b2o$42bobo<br />
56b2o$44bo56bo$44b2o56b3o$22b2o80bo$22b2o3b2o$27b2o2$bo$obo25b2o$obo<br />
18b2o5bo$bo19b2o6b3o$31bo!-->.<br />
<br />
A different reaction, which directly produces an [[LWSS]] at the expense of a [[block]], was used to produce a compact [[Pi heptomino]]-to-[[LWSS]] [[converter]]. This PS12T565L pi-to-LWSS conduit can be attached to a standard Herschel-to-Pi and syringe to yield a relatively small G-to-LWSS; however, it has a much larger recovery time than the converter in the infobox.<br />
<br />
==References==<br />
<references><br />
<ref name="post23909">{{LinkForumThread<br />
|format = ref<br />
|author = Chris Cain<br />
|title = Re: The Hunting of the New Herschel Conduits<br />
|date = October 15, 2015<br />
|accessdate = January 6, 2019<br />
|p = 23909<br />
}}</ref><br />
</references></div>Freywahttp://conwaylife.com/wiki/Light_bulbLight bulb2019-07-16T13:20:33Z<p>Freywa: Reduced house variant to 7 gliders, thereby reducing the snake variant to 26</p>
<hr />
<div>{{Oscillator<br />
|name = Light bulb<br />
|pname = lightbulb<br />
|f1 = Babbling brook<br />
|f2 = Billiard table<br />
|c = 23<br />
|bx = 7<br />
|by = 9<br />
|p = 2<br />
|m = 2<br />
|h = 3<br />
|v = 0.12<br />
|rotor = Filament<br />
|discoveryear = 1971<br />
|rulemin = B3/S23<br />
|rulemax = B378/S0123678<br />
|rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|isorulemin = B3ij/S2-cn3ejnr<br />
|isorulemax = B2in34-ikrwy5-jqry6-in78/S01234-k5-e678<br />
|synthesis = 26<br />
|synthesisRLE = true<br />
|plaintext = true<br />
|rle = true<br />
|animated = yes<br />
|apgcode = xp2_3p606p3z0c95d<br />
|viewerconfig = #C [[ GPS 2 ZOOM 20 LOOP 2 ]]<br />
}}<br />
'''Light bulb''' is a [[period]] [[:Category:Oscillators with period 2|2]] [[oscillator]] that was found in [[:Category:Patterns found in 1971|1971]]. Its [[rotor]], known as the '''filament''',<ref name="pddict" /> is the only known 3-[[cell]] period 2 rotor, and it can be embedded in a slightly smaller [[stator]], giving the [[:Category:Patterns with 21 cells|21]]-[[cell]] variant shown below. Two other variants of this oscillator are also known.<ref>{{cite web|url=http://www.pentadecathlon.com/rotors/rotors.php?page=3 |title=Period 2 Oscillator Rotors |accessdate=March 16, 2009}}</ref> Various other small [[induction coil]]s can also be used in place of the [[snake]] at the top of the bulb, including [[house]] and [[bookend]], though these lead to larger [[bounding box]]es.<br />
<br />
An {{gliders|11}} [[synthesis]] is known for a [[stator]] variant of this oscillator which uses a [[house]] instead of a snake for stabilization.<ref>{{citeCatagolue|title=lightbulb_and_cis-C|page=object/xp2_03lkl3zojc0cjo/b3s23|accessdate=May 24, 2019}}</ref><br />
<br />
==Image gallery==<br />
{|<br />
|-<br />
|[[Image:Lightbulb2_anim.gif|framed|left|A variant of the light bulb that is 2 cells smaller.]]<br />
|}<br />
<br />
==References==<br />
<references><br />
<ref name="pddict">{{cite web<br />
|title = Game of Life Dictionary<br />
|work = Pentadecathlon.com<br />
|url = http://pentadecathlon.com/dictionary/dictionary.php<br />
|accessdate = 2016-10-02<br />
}}</ref><br />
</references><br />
<br />
==External links==<br />
{{LinkWeisstein|LightBulb.html}}<br />
{{LinkLexicon|lex_l.htm#lightbulb}}<br />
{{LinkCatagolue|xp2_3p606p3z0c95d}}<br />
__NOTOC__</div>Freywahttp://conwaylife.com/wiki/Diamond_ringDiamond ring2019-07-11T15:47:28Z<p>Freywa: yes, this is the logo I have adopted</p>
<hr />
<div>{{Oscillator<br />
|name = Diamond ring<br />
|pname = diamondring<br />
|f1 = Billiard table<br />
|c = 40<br />
|bx = 13<br />
|by = 13<br />
|p = 3<br />
|m = 3<br />
|h = 13.3<br />
|v = 0.38<br />
|discoverer = David Buckingham<br />
|discoveryear = 1972<br />
|rulemin = B3/S23<br />
|rulemax = B378/S0235678<br />
|rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|isorulemin = B3eiqy/S2ck3cey<br />
|isorulemax = B2ckn34-ejkwy5-y6-k78/S01c234-cty5678<br />
|synthesis = 24<br />
|synthesisRLE = true<br />
|plaintext = true<br />
|rle = true<br />
|animated = yes<br />
|apgcode = xp3_wggc2l2cggz25a8i2d2i8a52zy012521<br />
|pentadecathlonid = 40P3.15<br />
|viewerconfig = [[ GPS 3 HEIGHT 480 ]]<br />
}}<br />
'''Diamond ring''' is a [[period]] [[:Category:Oscillators with period 3|3]] [[oscillator]] that was found in [[:Category:Patterns found in 1972|1972]] by [[David Buckingham]].<ref>{{CiteHickersonOscillators}}</ref> Its generations have 40, 44, and 48 [[cell]]s.<br />
<br />
It serves as the logo of [[Shinjuku]].<br />
<br />
==Synthesis==<br />
In August [[:Category:patterns found in 2004|2004]] [[Jason Summers]] found a [[:Category:patterns that can be constructed with 28 gliders|28]]-[[glider]] [[glider synthesis|synthesis]] of a variation of this oscillator with an alternate [[stator]].<ref>{{CiteSummersPattern|name=jslife}}</ref> A 24-glider synthesis of the original version was later found by [[Jeremy Tan]] on March 29, {{year|2019}} based on a [[soup]] submitted to [[Catagolue]].<ref name="post74101" /><br />
<br />
==References==<br />
<references><br />
<ref name="post74101">{{LinkForumThread<br />
|format = ref<br />
|title = Re: Synthesising Oscillators<br />
|p = 74101<br />
|author = Jeremy Tan<br />
|date = March 29, 2019<br />
}}</ref><br />
</references><br />
<br />
==External links==<br />
{{LinkWeisstein|DiamondRing.html}}<br />
{{LinkLexicon|lex_d.htm#diamondring}}<br />
{{LinkCatagolue|xp3_wggc2l2cggz25a8i2d2i8a52zy012521}}<br />
{{LinkPentadecathlonObject|40P3.15}}<br />
<br />
{{Symmetry|full}}<br />
{{seminatural}}</div>Freywahttp://conwaylife.com/wiki/Achim%27s_p11Achim's p112019-07-11T10:08:41Z<p>Freywa: Will cost 75 gliders in latest update</p>
<hr />
<div>{{Oscillator<br />
|name = Achim's p11<br />
|pname = achimsp11<br />
|c = 72<br />
|bx = 22<br />
|by = 22<br />
|p = 11<br />
|m = 11<br />
|h = 68.4<br />
|v = 0.90<br />
|discoverer = Achim Flammenkamp<br />
|discoveryear = 1994<br />
|rulemin = B3/S23<br />
|rulemax = B38/S236<br />
|rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|isorulemin = B3-ky/S2-e3-ek<br />
|isorulemax = B34cy5-ejny6-kn7c8/S234eiktz5acenr67e<br />
|synthesis = 75<br />
|synthesisRLE = true<br />
|plaintext = true<br />
|rle = true<br />
|apgcode = xp11_xg8k8x33x8k8gzw121ow111111wo121z33xfy6fx33zw25ak8022222208ka52zy633<br />
|pentadecathlonid = 72P11.1<br />
|animated = true<br />
|viewerconfig = #C [[ LOOP 11 GPS 4 THUMBSIZE 2 HEIGHT 480 ]]<br />
}}<br />
'''Achim's p11''' is a [[period]] [[:Category:oscillators with period 11|11]] [[oscillator]] discovered by [[Achim Flammenkamp]] on August 4, [[:Category:patterns found in 1994|1994]].<ref>{{CiteHickersonOscillators}}</ref> In February, [[:Category:patterns found in 2000|2000]] [[Mark Niemiec]] created a [[:Category:patterns that can be constructed with 96 gliders|96]]-[[glider]] [[synthesis]] for this oscillator.<ref>{{CiteSummersPattern|name=jslife}}</ref><br />
<br />
==See also==<br />
*[[Achim's p4]]<br />
*[[Achim's p8]]<br />
*[[Achim's p16]]<br />
*[[Achim's other p16]]<br />
*[[Achim's p144]]<br />
*[[38P11.1]]<br />
*[[Fumarole on Achim's p11]]<br />
<br />
==References==<br />
<references/><br />
<br />
== External links ==<br />
{{LinkCatagolue|xp11_xg8k8x33x8k8gzw121ow111111wo121z33xfy6fx33zw25ak8022222208ka52zy633}}<br />
{{LinkPentadecathlonObject|72P11.1}}<br />
<br />
{{Symmetry|full}}<br />
[[Category:Sparkers]]<br />
[[Category:Sparkers with period 11]]<br />
[[Category:Weak sparkers]]<br />
{{seminatural}}</div>Freywahttp://conwaylife.com/wiki/Double_XDouble X2019-07-11T09:12:09Z<p>Freywa: Will cost 91 gliders in latest update</p>
<hr />
<div>{{Oscillator<br />
|name = Double X<br />
|pname = doublex<br />
|f1 = Shuttle<br />
|c = 350<br />
|bx = 133<br />
|by = 69<br />
|p = 46<br />
|m = 23<br />
|h = 316.9<br />
|v = 0.99<br />
|sv = 0.98<br />
|discoverer = Robert Wainwright<br />
|rulemin = B3/S23<br />
|rulemax = B38/S23<br />
|rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|isorulemin = B3-y/S23-k<br />
|isorulemax = B34eq6c8/S234c5kn6cei7e<br />
|synthesis = 91<br />
|plaintext = true<br />
|rle = true<br />
|animated = true<br />
|viewerconfig = #C [[ GPS 23 LOOP 46 THUMBSIZE 3 WIDTH 800 HEIGHT 480 ]]<br />
|apgcode = xp46_vfoxo8oyxgwgypgwgyxo8oxofvz102303201yaa1197ye24447yn74442ye7911aya102303201zumgc0cgmuy3235yy742y5247yy532y3umgc0cgmuzzyoc68yaca8yt8acya86czccyzyzyzy4cczggyso0gwgo8yzy28ogwg0oysggzv7cg0gc4syl11y11yzy21y111yls4cg0gc7vzw11011ycgyogyjgyogyc11011zfb86068bfy9322ym312yh213ym223y9fb86068bfzywggyzyaggzy86ed72ye33572ye6ed72x27de6ye27533ye27de6z66yzyzyzy466<br />
}}<br />
'''Double X''' is a [[period]] [[:Category:Oscillators with period 46|46]] [[oscillator]] based on the [[twin bees shuttle]] that was found by [[Robert Wainwright]]<ref>[[Alan Hensel]]'s [http://www.ibiblio.org/lifepatterns/ lifep.zip pattern collection].</ref> and exhibits two interesting reactions. First, it shows how a twin bees shuttle can be used to convert a [[glider]] into a [[lightweight spaceship]]. Second, it shows how a head-on collision between two lightweight spaceships can produce two gliders.<br />
<br />
==References==<br />
<references /><br />
<br />
==External links==<br />
{{LinkCatagolue|xp46_vfoxo8oyxgwgypgwgyxo8oxofvz102303201yaa1197ye24447yn74442ye7911aya102303201zumgc0cgmuy3235yy742y5247yy532y3umgc0cgmuzzyoc68yaca8yt8acya86czccyzyzyzy4cczggyso0gwgo8yzy28ogwg0oysggzv7cg0gc4syl11y11yzy21y111yls4cg0gc7vzw11011ycgyogyjgyogyc11011zfb86068bfy9322ym312yh213ym223y9fb86068bfzywggyzyaggzy86ed72ye33572ye6ed72x27de6ye27533ye27de6z66yzyzyzy466|format=extended}}<br />
<br />
{{Symmetry|orthogonal2|osc=flip}}</div>Freywahttp://conwaylife.com/wiki/Tub_with_two_down_trans_tailsTub with two down trans tails2019-06-29T06:39:03Z<p>Freywa: Down to 6, from Cata</p>
<hr />
<div>{{Stilllife<br />
|name = Tub with two down trans tails<br />
|pname = tubwithtwodowntranstails<br />
|c = 12<br />
|bx = 7<br />
|by = 7<br />
|fc = 31.8<br />
|rulemin = B/S23<br />
|rulemax = B35678/S012345678<br />
|rulespecial = [[Conway's Game of Life|Conway Life]], [[HighLife]]<br />
|isorulemin = B/S2-in3cr<br />
|isorulemax = B2-ae34-aejn5678/S012345678<br />
|synthesis = 6<br />
|plaintext = true<br />
|rle = true<br />
|apgcode = xs12_0g8k871z23<br />
|pentadecathlonid = 12.101<br />
}}{{stub}}<br />
The '''tub with two down trans tails''' (or '''tub with two down trans''') is a [[still life]] with [[:Category:Strict still lifes with 12 cells|12]] cells, and the 84th most common such still life according to [[Catagolue]].<br />
<br />
==External links==<br />
{{LinkPentadecathlonObject|12.101}}<br />
{{LinkCatagolue|xs12_0g8k871z23}}<br />
<br />
{{symmetry|180degree}}</div>Freywahttp://conwaylife.com/wiki/Barge_siamese_loafBarge siamese loaf2019-06-28T07:06:14Z<p>Freywa: Received a 5-glider synth from Cata's port</p>
<hr />
<div>{{Stilllife<br />
|name = Barge siamese loaf<br />
|pname = bargesiameseloaf<br />
|c = 10<br />
|bx = 5<br />
|by = 5<br />
|fc = 23.1<br />
|rulemin = B/S23<br />
|rulemax = B3678/S012345678<br />
|rulespecial = [[Conway's Game of Life|Conway Life]], [[HighLife]]<br />
|isorulemin = B/S2ck3c<br />
|isorulemax = B2-ae34-ej5-k678/S012345678<br />
|synthesis = 5<br />
|synthesisRLE = true<br />
|plaintext = true<br />
|rle = true<br />
|apgcode = xs10_4al96<br />
|niemiecid = 10.3<br />
|pentadecathlonid = 10.22<br />
}}<br />
'''Barge siamese loaf''' is a [[:Category:strict still lifes with 10 cells|10]]-[[cell]] [[still life]] that consists of a [[barge]] attached to a [[loaf]].<br />
<br />
It contains a photonegative [[boat]].<br />
<br />
==See also==<br />
*[[Siamese]]<br />
<br />
==External links==<br />
{{LinkLexicon|lex_l.htm#loafsiamesebarge|name=Loaf siamese barge}}<br />
{{LinkWeisstein|LoafSiameseBarge.html}}<br />
{{LinkCatagolue|xs10_4al96}}<br />
{{LinkNiemiec|p1.htm#p1-10|patternname=The 25 ten-bit still-lifes}}<br />
<br />
{{Symmetry|diagonal2}}</div>Freywahttp://conwaylife.com/wiki/History_of_CatagolueHistory of Catagolue2019-06-24T12:45:43Z<p>Freywa: Undo revision 62043 by Moosey (talk): this is only temporary and will be rectified in 24 hours</p>
<hr />
<div>The following is an overview of the '''history of Adam P. Goucher's [[Catagolue]]'''.<br />
<br />
==2015==<br />
* February 20: Catagolue becomes operative.<br />
* April 24: the B3/S23/C1 census reaches a total of one trillion objects.<br />
* September 2: the B3/S23/C1 census reaches a total of ten trillion objects.<br />
* September 16: the [[pony express]], the first natural [[infinite-growth pattern]] other than the [[block-laying switch engine]] and [[glider-producing switch engine]] is found in a soup.<ref name="ponyexpress1" /> After being initially rejected by Catagolue, the containing haul is recomputed and manually committed on September 28.<ref name="ponyexpress2" /><br />
* September 24: Catagolue supports the generation of backups, including daily backups for the C1 symmetry of [[Conway's Game of Life]].<br />
* October 5: the first instance of [[Phoenix 1]], the last remaining unseen 12-bit object, is found.<ref name="catagolue20151005" /><br />
* October 21: the B3/S23/C1 census reaches a total of twenty trillion objects.<br />
<br />
==2016==<br />
* January 25: [[Aidan F. Pierce]] releases a hacked version of [[apgsearch]] v0.54 which can search [[isotropic non-totalistic Life-like cellular automata]] rules and upload the results to Catagolue.<ref name="post27013" /><br />
* February 20: the B3/S23/C1 census reaches a total of 50 trillion objects exactly one year after Catagolue was launched.<br />
* June 20: the B3/S23/C1 census reaches a total of 100 trillion objects.<br />
* July 5: a new [[:Category:Oscillators with period 16|period-16]] [[oscillator]], [[Rich's p16]], is discovered in the ash of a [[symmetry|D2_+1]] soup.<br />
* July 6: the B3/S23/C1 census reaches a total of 5 trillion soups.<br />
* August 22: the B3/S23/C1 census reaches a total of 100,000 distinct objects.<br />
* September 4: the B3/S23/C1 census reaches a total of 150 trillion objects.<br />
* September 20: [[Symmetry|D2_+2]] becomes the first [[Conway's Game of Life|B3/S23]] symmetry other than C1 to reach 1 trillion objects.<br />
<br />
==2017==<br />
* January 13: Catagolue starts collecting [[slow salvo]] data using the SS pseudo-symmetry.<br />
* March 15: B38/S23/C1 ([[Pedestrian Life]]) becomes the first rule/symmetry other than B3/S23/C1 to reach 10 trillion objects.<br />
* May 16: the B3/S23/C1 census reaches a total of 200 trillion objects.<br />
* August 19: Catagolue gains the ability to census [[Generations]] and [[Birth on zero neighbours|B0]] rules, fed by [[apgsearch]] 4.0.<ref name="post49184" /><br />
* August 21: Catagolue gains the ability to census [[Larger than Life]] rules, fed by [[apgsearch]] 4.1.<ref name="post49541" /><br />
* September 10: Catagolue gains official support for [[isotropic non-totalistic Life-like cellular automata|isotropic non-totalistic]] rules, fed by [[apgsearch]] 4.2.<ref name="post50771" /> Previously, these rules required a hacked version of the original apgsearch [[Golly]] script.<br />
<br />
==2018==<br />
* June 3: Catagolue gains the ability to census [[Generations]] variants of [[Larger than Life]] and [[isotropic non-totalistic Life-like cellular automata|isotropic non-totalistic]] rules, fed by [[apgsearch]] 4.3.<ref name="post60663" /><br />
* October 28: Catagolue starts collecting data on [[methuselah|long-lived patterns]], fed by [[apgsearch]] 4.54.<ref name="post65133" /><br />
* October 29: Catagolue gains the ability to census [[BSFKL]] rules, fed by [[apgsearch]] 4.56.<ref name="post65313" /><br />
* November 7: Catagolue gains the ability to census higher-range totalistic [[Life-like cellular automata]], fed by [[apgsearch]] 4.63.<ref name="post65439" /><br />
* November 29: the B3/S23/C1 census reaches a total of 250 trillion objects.<br />
* December 1: Catagolue gains the ability to census isotropic [[hexagonal neighborhood]] rules, fed by [[apgsearch]] 4.66; only C1, 1x256, 2x128, 4x64 and 8x32 are supported, not higher symmetries, as these are currently incompatible with the hexagonal neighbourhood.<ref name="post66090" /><br />
* December 11: the first instance of the [[heptapole]], the last remaining unseen 13-bit object, is found.<ref name="post66400" /><br />
* December 11: Catagolue starts collecting data on [[diehard]]s, fed by [[apgsearch]] 4.69.<br />
* December 12: Catagolue supports [https://en.wikipedia.org/wiki/Gzip gzip] compression of certain tabulations.<br />
<br />
==2019==<br />
* January 3: the B3/S23/C1 census reaches a total of 300 trillion objects.<br />
* January 9: Catagolue gains the ability to census [[Golly]] rule tables and rule trees, fed by [[apgsearch]] 4.8.<br />
* January 15: Catagolue gains native support for [[Deficient]] and [[Extended Generations]] rules, fed by [[apgsearch]] 4.83.<br />
* February 12: a [[Schick engine]] first appears naturally in an asymmetric soup.<ref name="post70479" /><br />
* March 3: a [[figure eight on pentadecathlon]] first appears in an asymmetric [[soup]],<ref name="post72438" /> making it the highest period oscillator to have occurred [[natural]]ly.<ref>{{citeCatagolueStats|March 3, 2019}}</ref><br />
* March 24: Catagolue starts collecting data on soups with large final populations, fed by [[apgsearch]] 5.03.<ref name="post73826" /><br />
* March 27: the first instance of long^4 [[melusine]], the last remaining unseen 14-bit [[still life]], is found.<ref name="post74007" /><br />
* March 31: the B3/S23/C1 census reaches a total of one million submitted hauls.<br />
* April 12: Catagolue starts collecting data about glider syntheses from [[Shinjuku]].<br />
* April 14: the B3/S23/C1 census reaches a total of 400 trillion objects.<br />
<br />
==References==<br />
<references><br />
<ref name="ponyexpress1">{{cite web<br />
|url = http://www.conwaylife.com/forums/viewtopic.php?f=7&t=1784&p=23022#p23022<br />
|title = Re: apgsearch v2.2<br />
|date = 2015-09-27<br />
|author = Apple Bottom<br />
|work = ConwayLife.com forums<br />
|accessdate = 2016-06-30<br />
}}</ref><br />
<ref name="ponyexpress2">{{cite web<br />
|url = http://www.conwaylife.com/forums/viewtopic.php?f=7&t=1784&p=23054#p23054<br />
|title = Re: apgsearch v2.2<br />
|date = 2015-09-28<br />
|author = Adam P. Goucher<br />
|work = ConwayLife.com forums<br />
|accessdate = 2016-06-30<br />
}}</ref><br />
<ref name="catagolue20151005">{{cite web<br />
|url = https://catagolue.appspot.com/census/b3s23/C1-2015-10-05/<br />
|title = Census (2015-10-05 backup)<br />
|date = 2015-10-05<br />
|author = Adam P. Goucher<br />
|work = Catagolue<br />
|accessdate = 2016-06-29<br />
}}</ref><br />
<ref name="post27013">{{LinkForumThread<br />
|format = ref<br />
|title = Re: Hacking apgsearch<br />
|p = 27013<br />
|author = Aidan F. Pierce<br />
|date = January 25, 2016<br />
}}</ref><br />
<ref name="post49184">{{LinkForumThread<br />
|format = ref<br />
|title = 345/3/8<br />
|p = 49184<br />
|author = Adam P. Goucher<br />
|date = August 18, 2017<br />
}}</ref><br />
<ref name="post49541">{{LinkForumThread<br />
|format = ref<br />
|title = Re: apgsearch v4.0<br />
|p = 49541<br />
|author = Adam P. Goucher<br />
|date = August 21, 2017<br />
}}</ref><br />
<ref name="post50771">{{LinkForumThread<br />
|format = ref<br />
|title = Re: apgsearch v4.2<br />
|p = 50771<br />
|author = Adam P. Goucher<br />
|date = September 10, 2017<br />
}}</ref><br />
<ref name="post60663">{{LinkForumThread<br />
|format = ref<br />
|title = Re: apgsearch v4.0<br />
|p = 60663<br />
|author = Adam P. Goucher<br />
|date = June 3, 2018<br />
}}</ref><br />
<ref name="post65133">{{LinkForumThread<br />
|format = ref<br />
|title = Re: apgsearch v4.0<br />
|p = 65133<br />
|author = Adam P. Goucher<br />
|date = 2018-10-28<br />
}}</ref><br />
<ref name="post65313">{{LinkForumThread<br />
|format = ref<br />
|title = Re: apgsearch v4.0<br />
|p = 65313<br />
|author = Apple Bottom<br />
|date = 2018-11-03<br />
}}</ref><br />
<ref name="post65439">{{LinkForumThread<br />
|format = ref<br />
|title = Re: apgsearch v4.0<br />
|p = 65439<br />
|author = Adam P. Goucher<br />
|date = 2018-11-07<br />
}}</ref><br />
<ref name="post66090">{{LinkForumThread<br />
|format = ref<br />
|title = Re: Non-totalistic hex rules<br />
|p = 66090<br />
|author = Adam P. Goucher<br />
|date = December 1, 2018<br />
}}</ref><br />
<ref name="post66400">{{LinkForumThread<br />
|format = ref<br />
|title = Re: Soup search results<br />
|p = 66400<br />
|author = Billabob<br />
|date = December 11, 2018<br />
}}</ref><br />
<ref name="post70479">{{LinkForumThread<br />
|format = ref<br />
|title = Re: Soup search results<br />
|p = 70479<br />
|author = Adam P. Goucher<br />
|date = February 12, 2019<br />
}}</ref><br />
<ref name="post72438">{{LinkForumThread<br />
|format = ref<br />
|title = Re: Soup search results<br />
|p = 72438<br />
|author = testitemqlstudop<br />
|date = March 3, 2019<br />
}}</ref><br />
<ref name="post73826">{{LinkForumThread<br />
|format = ref<br />
|title = Re: apgsearch v5.0<br />
|p = 73826<br />
|author = Adam P. Goucher<br />
|date = March 24, 2019<br />
}}</ref><br />
<ref name="post74007">{{LinkForumThread<br />
|format = ref<br />
|title = Re: Soup search results<br />
|p = 74007<br />
|author = alphazelf<br />
|date = March 27, 2019<br />
}}</ref><br />
</references><br />
<br />
[[Category:Censuses|Catagolue, History of]]</div>Freywahttp://conwaylife.com/wiki/Category:Non-flipping_oscillators_that_turn_90_degreesCategory:Non-flipping oscillators that turn 90 degrees2019-06-20T10:01:03Z<p>Freywa: To accommodate A for all, washing machine and possibly others...</p>
<hr />
<div>This category contains all notable [[oscillators]] that rotate by 90 degrees a quarter or halfway through their [[period]].<br />
<br />
[[Category:Patterns with (some) symmetry]]</div>Freywahttp://conwaylife.com/wiki/A_for_allA for all2019-06-19T07:38:19Z<p>Freywa: /* External links */ No that can't be right</p>
<hr />
<div>{{Oscillator<br />
|name = A for all<br />
|pname = aforall<br />
|c = 28<br />
|bx = 10<br />
|by = 10<br />
|p = 6<br />
|m = 3<br />
|h = 13.3<br />
|v = 0.73<br />
|sv = 0.73<br />
|discoverer = Dean Hickerson<br />
|discoveryear = 1993<br />
|rulemin = B3/S23<br />
|rulemax = B378/S0235678<br />
rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|isorulemin = B3ijr/S2aek3-ciky<br />
|isorulemax = B2ikn34-anw5-a6-k78/S01e234-jqt5678<br />
|synthesis = 12<br />
|synthesisRLE = true<br />
|plaintext = true<br />
|rle = true<br />
|apgcode = xp6_g80e55e08gz120ekke021<br />
|pentadecathlonid = 28P6.5<br />
|animated = yes<br />
|viewerconfig = #C [[ TRACKLOOP 6 0 0 THUMBSIZE 2 GPS 3 ]]<br />
}}<br />
'''A for all''' is a [[period]] [[:Category:Oscillators with period 6|6]] [[oscillator]] found by [[:Category:Patterns found by Dean Hickerson|Dean Hickerson]] in March [[:Category:Patterns found in 1993|1993]]. Its [[:Category:Patterns that can be constructed with 13 gliders|13]]-glider [[glider synthesis|synthesis]] was found by [[David Buckingham]] in 1993, but was forgotten about and not revealed until August [[:Category:Patterns found in 1995|1995]].<br />
<br />
==See also ==<br />
*[[Cyclic]]<br />
<br />
==External links==<br />
{{LinkWeisstein|filename=AforAll.html|patternname=A for all}}<br />
{{LinkLexicon|lex_a.htm#aforall}}<br />
{{LinkCatagolue|xp6_g80e55e08gz120ekke021}}<br />
{{LinkPentadecathlonObject|28P6.5}}<br />
<br />
{{Symmetry|orthogonal4|osc=flip}}<br />
{{seminatural}}</div>Freywahttp://conwaylife.com/wiki/Tutorials/Glider_synthesesTutorials/Glider syntheses2019-06-12T15:14:52Z<p>Freywa: /* Making your own glider syntheses */ It is actually synthtools</p>
<hr />
<div>[[Glider synthesis]] is the process of colliding [[glider]]s – the smallest [[spaceship]] in [[Conway's Game of Life]] – in a specific way to construct a specific object. It is one of the few areas in the Game of Life that many discoveries can still be made without using scripts.<br />
<br />
This is an example of a glider synthesis:<br />
<br />
<center>{{LV:Viewer|x = 73, y = 28, rule = B3/S23<br />
52bo$50bobo$51b2o4$51bobo$52b2o2bobo4bo$52bo3b2o5bobo$2bo54bo5b2o$<br />
obo$b2o$49b2o$13bo35bo$3b2o6b2o37b3o12bo$4b2o6b2o38bo10b2o$3bo51b<br />
2o7b2o$55b2o$8b2o$9b2o54b2o$8bo48b2o5b2o4b3o$58bo7bo3bo$12bo45bobo<br />
10bo$12b2o45b2o$11bobo$16b3o$16bo$17bo!<br />
[[ THEME 6 GRID THUMBNAIL THUMBSIZE 2 ]]}}</center><br />
<br />
It is a 13 glider synthesis of [[Achim Flammenkamp]]'s [[pseudo-barberpole]], which, at the time of writing, is the cheapest synthesis known of that object. Note that this particular synthesis can be divided into two stages which can take place arbitrarily far apart; multi-stage synthesis are typically shown this way to make it easier to see what is happening in each step. The three still life syntheses are independent and could also be moved into separate stages, so this is really a four-stage synthesis. Simple well-separated still lifes tend to be trivial to construct, and often the order of construction doesn't matter, so several stages are sometimes left combined in cases like this.<br />
<br />
==Locating known glider syntheses==<br />
To locate a known glider synthesis, there are three main places you should look:<br />
* [https://catagolue.appspot.com/syntheses The "Syntheses" page] on [[Catagolue]], showing the current synthesis data from [[Shinjuku]]<br />
* [[Mark Niemiec]]'s [http://conwaylife.com/ref/mniemiec/lifepage.htm synthesis database],<br />
* [[2718281828]]'s [https://github.com/dvgrn/b3s23life/tree/master/three-glider-collisions/synthesise-constellation 3G collision database] (see [[#3-glider_collision_database|3-glider collision database]] below)<br />
<br />
As of May 2019, many of the syntheses in Niemiec's database are out of date, but the site does have some that aren't on Catagolue yet.<br />
<br />
Also, there's a very important difference between the two databases. Shinjuku/Catagolue focuses on documenting the single synthesis of each object that takes the smallest number of gliders. By contrast, Niemiec's database collects many types of syntheses for a large number of objects, including more expensive ones. For example, there may be syntheses of two combined objects where each type of object is added to an already existing instance of the other type. Or there might be syntheses where all gliders come from one side of the object (useful in building the object near other existing objects), and so on.<br />
<br />
<br />
Sometimes you will not find a synthesis for a particular object in either of these places. That could be because:<br />
<br />
* There does exist a known synthesis, but it is hidden somewhere obscure. Your best bet is to ask on the ConwayLife.com forums.<br />
* No syntheses are known because no-one has decided to synthesise that specific object before. These are usually pretty easy to make a synthesis for yourself.<br />
* No syntheses are known because the object is very difficult to synthesise. An example of this would be [[Sir Robin]].<br />
* The object has been proven impossible to synthesise. Examples of this include all [[Gardens of Eden]] as well as solutions to the [[grandfather problem]].<br />
<br />
In the next section we will look at how to make your own syntheses.<br />
<br />
==Making your own glider syntheses==<br />
<br />
===Using [[Catagolue]] to find glider syntheses===<br />
Before you start, you will need to download the second Python script posted by [[Brett Berger]] [http://www.conwaylife.com/forums/viewtopic.php?f=9&t=2032&start=0#p27202 here]. If you select an object (which can either be a true object or a [[constellation]]) in [[Golly]] and run this script, it will open the object's [[Catagolue]] page. You might instead want to use <tt>synthtools.py</tt> in [[Shinjuku]] to do the following process more quickly. More details about this will be given in "Using search programs to assist in creating syntheses".<br />
<br />
Let's say you want to find a synthesis for block on down [[candlefrobra]], which, according to Mark Niemiec's website, takes 12 gliders:<br />
<br />
<center>{{LV:Viewer|x = 10, y = 5, rule = B3/S23<br />
4bo$2obob2obo$2obo3bobo$3bo4bo$3b2o! [[ THEME 6 GRID THUMBNAIL THUMBSIZE 2 ]]}}</center><br />
<br />
Select the pattern in Golly and run the script mentioned above. It should bring you to {{LinkCatagolue|xp3_025qz32qq1|style=raw|patternname=this page}} on Catagolue. Scroll down to the part of the page with lots of differently coloured dots. These are all sample soups for the object. The black ones are [[symmetry|asymmetric]] [[soup]]s, which are the easiest to make syntheses from. (However, it should not be forgotten that you can still get good syntheses from symmetric soups -- especially if the object has the same type of symmetry as the soup.)<br />
<br />
So click on the first asymmetric soup (the first black dot), and copy the [[RLE]] it provides into [[Golly]]. You should get this:<br />
<br />
<center>{{LV:Viewer|x = 16, y = 16, rule = B3/S23<br />
ob2o3bo2bo2bobo$ob5ob3o2bobo$obobo4b2obo2bo$3b2o5b3obo$2bobo8b3o$bo2bo<br />
4b5obo$4b6obo2b2o$obo2b2o2b4o$o2bob4obo3b2o$5b3o2bo3bo$6bob2ob2o2bo$2b<br />
2ob5obob2o$4o3b2obobo2bo$ob3ob2obo3b2o$3b3ob5o2b2o$bo3b2obob2obo! [[ THEME 6 GRID THUMBNAIL THUMBSIZE 2 ]]}}</center><br />
<br />
Now run the soup until the [[candlefrobra]] appears (this should happen at generation 919). Use the <tt>goto.py</tt> script (which comes with Golly) to go 20 generations back. Watch each generation up to the candlefrobra's formation step-by-step to see which objects react to make the candlefrobra. Next, go back 20 generations, select the objects that reacted to make a candlefrobra, and paste them into a new layer.<br />
<br />
Test to see if that pasted pattern works. If it doesn't work, go back to the layer with the soup, and select and paste a larger area. Once you've deleted any objects that don't participate in the reaction, you should get something like this:<br />
<br />
<center>{{LV:Viewer|x = 11, y = 16, rule = B3/S23<br />
9bo$8bobo$9b2o2$6bo$2o3bobo$2o2b2ob2o6$5bobo$4b3o$3b3o$3b2o! [[ THEME 6 GRID THUMBNAIL THUMBSIZE 2 ]]}}</center><br />
<br />
The reaction is [[pi]] + [[block]] + [[boat]] + [[traffic light]] --> [[candlefrobra]] + some junk. We know how to make all those reactants with gliders, so we can now make a synthesis! In fact, all of the reactants can be made in two gliders (those collisions can be found in <tt>two-glider-collisions.rle</tt> in Golly's pattern collection).<br />
<br />
However, before you start, you may notice that not all of the blinkers in the traffic light react before making the candlefrobra. So maybe we don't need all of the blinkers. In fact, the only blinker we need is the top one. Try deleting the rest of the blinkers just before the traffic light first reacts. This isn't necessary, but to help your understanding, I've replaced the traffic light predecessor with one that only makes a blinker to get this:<br />
<br />
<center>{{LV:Viewer|x = 11, y = 19, rule = B3/S23<br />
9bo$8bobo$9b2o2$6bo$2o3bobo$2o2b2ob2o8$5b2o$2b3obo$2b2o$2b2obo$3bobo! [[ THEME 6 GRID THUMBNAIL THUMBSIZE 2 ]]}}</center><br />
<br />
Now there is also no junk left over after the synthesis, only the candlefrobra.<br />
<br />
Now you can start the synthesis. To do this, you should synthesise each of the reactants separately in such a way that they work when put together. You can find all the syntheses you need for this in <tt>two-glider-collisions.rle</tt>. Try to do this yourself. If you can't manage to make it work using only 2-glider collisions, look in Mark Niemiec's website to find more useful syntheses.<br />
<br />
If you need a hint, these are the syntheses I would use (zoomed out in case you don't want the hint):<br />
<br />
<center>{{LV:Viewer|x = 35, y = 29, rule = B3/S23<br />
bo26bo$2bo14bo11b2ob2o$3o13bobo9b2o2bobo$4bo12b2o13bo$3bo$3b3o8bo$8b2o<br />
3bobo$8b2o2b2ob2o2$25b2o$24bobo$26bo2$27b2o$27bobo$13b2o12bo$10b3obo$<br />
10b2o$10b2obo$11bobo6$bobo$2b2o2b2o$2bo2b2o$7bo! [[ ZOOM -16 THEME 6 THUMBNAIL THUMBSIZE 2 ]]}}</center><br />
<br />
If you used the hint, note that you may need to rewind some of the syntheses to make it work.<br />
<br />
How did you go? If you created a synthesis with less than 12 gliders then congratulations, you would have created a record-breaking synthesis! For reference, this is the synthesis I created which used 8 gliders:<br />
<br />
<center>{{LV:Viewer|x = 17, y = 21, rule = B3/S23<br />
9bobo$bo8b2o$2bo7bo3b3o$3o11bo$4bo10bo$3bo$3b3o2$7b2o$6bobo$8bo$2bo$ob<br />
o6b2o$b2o6bobo$9bo4$10b3o$10bo$11bo! [[ THEME 6 GRID THUMBNAIL THUMBSIZE 2 ]]}}</center><br />
<br />
In this example with the block on trans-candlefrobra, we were lucky to get a good reaction from the very first soup. Sometimes you will have to look through 20 or more soups before finding a suitable reaction.<br />
<br />
If you want more practice for creating synthesis from a reaction, here is the reaction the current record holding synthesis of [[why not]] (8 gliders) was made with:<br />
<br />
<center>{{LV:Viewer|x = 22, y = 14, rule = B3/S23<br />
17bo$16b3o$15b2ob2o$19b2o$19b3o$19b2o$10b3o2b2ob2o$2o8bobo3b3o$b2o7b3o<br />
4bo$o3$12b2o$12b2o! [[ THEME 6 GRID THUMBNAIL THUMBSIZE 2 ]]}}</center><br />
<br />
Good luck!<br />
<br />
===Using converters to make syntheses===<br />
<br />
Let’s say we want to make a synthesis for this 18-bit still-life:<br />
<center>{{LV:Viewer|x = 11, y = 6, rule = B3/S23<br />
9bo$8bobo$2o2b2obobo$o2bobobo$2b2obobo$6bo!<br />
[[ THEME 6 GRID THUMBNAIL THUMBSIZE 2 ]]}}</center><br />
<br />
So we run the pattern-to-catagolue script, and it brings us [http://catagolue.appspot.com/object?apgcode=xs18_g8ge1e8628cz01&rule=b3s23 here]<br />
But there (at the time of writing) are no catagolue soups!<br />
So what can we do? It is time to be introduced to the world of converters…<br />
<br />
A converter is a collision of gliders with a still-life/oscillator, which turns it into a new still-life/oscillator. Here is an example of a converter. It turns a hook into a barge:<br />
<br />
<center>{{LV:Viewer|x = 37, y = 11, rule = B3/S23<br />
12bo$12bobo$5bo6b2o$3bobo$4b2o$bo26bo$b2o6b2o16bobo$obo7bo17bobo$9bo5b<br />
2o12bo5b2o$10b3obobo13b3obobo$12b2o18b2o!<br />
[[ THEME 6 GRID THUMBNAIL THUMBSIZE 2 ]]}}</center><br />
<br />
Converters are very useful for creating syntheses that are too large and/or rare to turn up on catagolue. For example, the duodecapole currently has no appearances on catagolue, but we can still create a synthesis from a barberpole-lengthening converter and an already known synthesis for the decapole like this:<br />
<br />
<center>{{LV:Viewer|x = 113, y = 33, rule = B3/S23<br />
26bo$27b2o15bo$26b2o16bobo$44b2o38bo$82bobo6bo$2bo80b2o4b2o5bo$obo83bo<br />
3b2o2b2o$b2o83b2o7b2o$85bobo$26bobo$26b2o63b2o$27bo63bo$59bo32bobo$23b<br />
obo32bo$24b2o5bobo24b3o33bobo$24bo7b2o$32bo9bo53bobo$41b2o7bo$14b3o24b<br />
obo5b2o47bobo$16bo32bobo$15bo84bobo$47bo55bo$47b2o53b2o$46bobo$107bobo<br />
$72b2o24b2o7b2o$72bobo24b2o2b2o3bo$72bo25bo5b2o4b2o$103bo6bobo$29b2o<br />
79bo$28bobo16b2o$30bo15b2o$48bo![[ THEME 6 GRID THUMBNAIL THUMBSIZE 2 ]]}}</center><br />
<br />
Here are three places you will find converters:<br />
* Martin Grant’s [http://www.conwaylife.com/forums/viewtopic.php?f=2&t=2380#p46552 collection]<br />
* Bob Shemyakin’s [http://www.conwaylife.com/forums/viewtopic.php?f=2&t=2441&start=175#p38455 collection]<br />
* Various places in the [http://www.conwaylife.com/forums/ forums]<br />
<br />
So with this new knowledge, back to synthesising the 18-bit still life:<br />
<br />
<center>{{LV:Viewer|x = 11, y = 6, rule = B3/S23<br />
9bo$8bobo$2o2b2obobo$o2bobobo$2b2obobo$6bo!<br />
[[ THEME 6 GRID THUMBNAIL THUMBSIZE 2 ]]}}</center><br />
<br />
So what could we convert that from? We could convert it from the equivalent with a snake instead of a carrier, but I would convert it from the equivalent with a hook instead of a tub, because it is more likely to have more soups on catagolue, and the corresponding converter is cheaper:<br />
<br />
<center>{{LV:Viewer|x = 20, y = 12, rule = B3/S23<br />
10bo$8bobo$9b2o$15bo$13b2o$14b2o$17b2o$9b2o6bobo$b2o2b2obobo6bo$bo2bob<br />
obo$3b2obobo$7bo![[ THEME 6 GRID THUMBNAIL THUMBSIZE 2 ]]}}</center><br />
Now, when we go to the catagolue page of the [http://catagolue.appspot.com/object?apgcode=xs17_0c9jz255lo&rule=b3s23 still-life with the hook], we find it has lots of soups (at the time of writing it is 43!)<br />
<br />
So let’s try the first soup:<br />
<br />
<center>{{LV:Viewer|x = 16, y = 16, rule = B3/S23<br />
o4b2o5b2o$ob4o2bobo3bo$5bo6bob2o$bob3o6b2obo$obo2bobobo2bo$ob2o2bo3b4o<br />
bo$o2bobobobo3bobo$2b2ob4ob2o2b2o$bo3bobobobo$5o2b2obobo2bo$o6b3o2b2o$<br />
2o3bo3b2obo2bo$o3b3o4bo2bo$o3bobob3o2bo$b3ob3o2b2ob3o$ob4ob4obobo![[ THEME 6 GRID THUMBNAIL THUMBSIZE 2 ]]}}</center><br />
<br />
The soup reduces to this predecessor:<br />
<br />
<center>{{LV:Viewer|x = 19, y = 25, rule = B3/S23<br />
9b2o$8bo2bo$9bobo$10bo2$17b2o$17b2o2$13bo$12bobo$12bobo$13bo2$11bo$10b<br />
3o$9b2ob2o$10b3o$11bo$5b2o$4bo2bo$4bobo$5bo2$2o$2o![[ THEME 6 GRID THUMBNAIL THUMBSIZE 2 ]]}}</center><br />
<br />
But before we start the synthesis, there are a few clever tricks we can do that will reduce the overall synthesis. The block only acts as cleanup, so perhaps it can be replaced with a glider:<br />
<br />
<center>{{LV:Viewer|x = 23, y = 34, rule = B3/S23<br />
13b2o$12bo2bo$13bobo$14bo2$21b2o$21b2o2$17bo$16bobo$16bobo$17bo2$15bo$<br />
14b3o$13b2ob2o$14b3o$15bo$9b2o$8bo2bo$8bobo$9bo10$2o$b2o$o!<br />
[[ THEME 6 GRID THUMBNAIL THUMBSIZE 2 ]]}}</center><br />
<br />
1 glider less. The loaf only partly reacts before being separated from the rest of the reaction, so maybe it can be substituted with a glider. Also, the glider that we replaced a block with actually is only acting as cleanup for the loaf’s reaction, so if we replace the loaf with a glider in the right way, the other glider can be removed. Unfortunately, the loaf can’t be replaced by 1 glider, but replacing it with 2 gliders still reduces the cost:<br />
<br />
<center>{{LV:Viewer|x = 18, y = 34, rule = B3/S23<br />
8b2o$7bo2bo$8bobo$9bo2$16b2o$16b2o2$12bo$11bobo$11bobo$12bo2$10bo$bo7b<br />
3o$2bo5b2ob2o$3o6b3o$10bo14$16b2o$15b2o$17bo![[ THEME 6 GRID THUMBNAIL THUMBSIZE 2 ]]}}</center><br />
<br />
2 gliders less. But we can do even more! Often it is possible to synthesise two nearby objects at once, instead of separately, to achieve a cheaper cost in gliders. In this example, the beehive and the traffic light can be made together in a 3-glider synthesis, instead of using 4 gliders to synthesise them separately. (More details on how these are found in a later tutorial.)<br />
<br />
<center>{{LV:Viewer|x = 9, y = 8, rule = B3/S23<br />
4bo$4bobo$4b2o$2bo$obo$b2o4b2o$6b2o$8bo!<br />
[[ THEME 6 GRID THUMBNAIL THUMBSIZE 2 ]]}}</center><br />
<br />
3 gliders less! See if you can complete the synthesis of the 17-bit still-life from there…<br />
<br />
<br />
…How did you go? This in the 11 glider synthesis I got:<br />
<br />
<center>{{LV:Viewer|x = 64, y = 75, rule = B3/S23<br />
39bobo$39b2o$40bo27$18bo$16bobo$17b2o$31bo$18b3o10bobo$18bo12b2o$19bo$<br />
23bobo$bo21b2o$2bo21bo$3o10bobo12b2o$14b2o12bobo$14bo13bo6$26b2o$26bob<br />
o$26bo16$61b2o$61bobo$61bo5$34b2o$33b2o$35bo![[ THEME 6 GRID THUMBNAIL THUMBSIZE 2 ]]}}</center><br />
<br />
Now all we need to do to complete the synthesis the 18-bit still-life is to add the converter:<br />
<br />
<center>{{LV:Viewer|x = 139, y = 75, rule = B3/S23<br />
39bobo$39b2o$40bo27$18bo$16bobo$17b2o$31bo$18b3o10bobo$18bo12b2o$19bo<br />
87bo$23bobo79bobo$bo21b2o81b2o$2bo21bo87bo$3o10bobo12b2o80b2o$14b2o12b<br />
obo80b2o$14bo13bo85b2o21bo$75b2o29b2o6bobo19bobo$67b2o2b2obobo21b2o2b<br />
2obobo6bo13b2o2b2obobo$67bo2bobobo23bo2bobobo22bo2bobobo$69b2obobo25b<br />
2obobo24b2obobo$73bo30bo29bo$26b2o$26bobo$26bo16$61b2o$61bobo$61bo5$<br />
34b2o$33b2o$35bo![[ THEME 6 GRID THUMBNAIL THUMBSIZE 2 ]]}}</center><br />
<br />
And we’re done! We successfully created a 14 glider synthesis of a still-life with no appearances on catagolue, by constructing it from another still-life which did have appearances on catagolue.<br />
<br />
If you want more practice at using converters and catagolue to find syntheses, try finding a synthesis for this still-life:<br />
<br />
<center>{{LV:Viewer|x = 9, y = 10, rule = B3/S23<br />
2o$obo$3bo3bo$4bobobo$5b2obo$7bo$5b2o$5bo$6bo$5b2o!<br />
[[ THEME 6 GRID THUMBNAIL THUMBSIZE 2 ]]}}</center><br />
<br />
Converters are used in many others ways than just assisting soup search result-based syntheses. They are used a lot in the syntheses of difficult objects like billiard tables and spaceships. For example, this is the weekender synthesis:<br />
<br />
<center>{{LV:Viewer|x = 188, y = 177, rule = B3/S23<br />
160bo$160bobo$7bo152b2o8bo$5bobo160b2o$6b2o161b2o9bo$179bo$179b3o$31bo<br />
$29bobo$30b2o$170bo$168b2o$169b2o$4bo174bo$5b2o156bobo11b2o$4b2o157b2o<br />
13b2o$36bo127bo$34bobo$35b2o2$179bo$178bo$37bobo138b3o$38b2o$38bo4bo<br />
122bo$44bo107bobo11bobo$42b3o107b2o12b2o$153bo3$136bobo$38bobo95b2o16b<br />
o$39b2o96bo15bo$18bo20bo113b3o7bobo$16bobo24bobo117b2o$17b2o25b2o89bob<br />
o26bo$44bo5bo84b2o$51b2o83bo$50b2o2$55bo77bo$37bo18bo75bo12bo$35bobo<br />
16b3o75b3o10bobo$36b2o107b2o$128bo$127bo$43bobo81b3o7bobo$44b2o91b2o$<br />
44bo93bo$57bo60bo6bo$55bobo59bo7bobo$56b2o59b3o5b2o3$60bo61bo$61bo59bo<br />
$59b3o11bo47b3o$74bo$72b3o4$81bo$79bobo$80b2o2$75bo33bo$73bobo31b2o$<br />
74b2o3bo28b2o$80b2o$79b2o3$90bo$90bobo$79bo10b2o$77bobo39bo$78b2o37b2o<br />
$118b2o2$80bobo11bobo$81b2o11b2o$81bo13bo8$77b3o$79bo$78bo$92b3o$82bob<br />
o3b2o2bo$74bo8b2o4b2o2bo$74b2o7bo4bo$73bobo2$64b2o$63bobo17b2o5b3o$65b<br />
o18b2o6bo$83bo7bo$98b3o$98bo$99bo13b3o$113bo$114bo2$55b3o67b3o$57bo52b<br />
2o13bo$56bo53bobo13bo$110bo3$52b2o75b2o$53b2o23b3o27b2o18b2o$52bo27bo<br />
26b2o21bo$79bo29bo3$46bo89bo$40bo5b2o87b2o5bo$40b2o3bobo87bobo3b2o$39b<br />
obo99bobo16$158b2o$157b2o$159bo2$172b2o$171b2o$154b2o17bo$153b2o$155bo<br />
6$9b2o$10b2o$9bo173b3o$183bo$184bo2$9bo164bo$9b2o162b2o$8bobo162bobo$<br />
30bo$bo28b2o$b2o26bobo$obo$185b2o$185bobo$185bo$11b2o$10bobo$12bo162b<br />
2o$175bobo$163b3o9bo$163bo$164bo![[ THEME 6 GRID THUMBNAIL THUMBSIZE 2 ]]}}</center><br />
<br />
<br />
===Using search programs to assist in creating syntheses (incomplete)===<br />
<br />
====3-glider collision database====<br />
''For this part of the tutorial, you will need to use Python scripts with Golly.''<br />
<br />
Below is a 25-glider synthesis of [[lightweight emulator]]:<br />
<br />
<center>{{LV:Viewer|x = 163, y = 51, rule = B3/S23<br />
71bo$47bobo19bobo$48b2o20b2o$48bo30bo$79bobo$79b2o18bo$99bobo$63bo6bo<br />
28b2o$49bo12bo5b2o$50b2o10b3o4b2o$49b2o2$92bobo$92b2o$3bobo87bo$3b2o<br />
146b2o2b2o2b2o$4bo70b2o74bo2b4o2bo$bo73b2o75b8o$b2o146b3o8b3o$obo146bo<br />
2bo6bo2bo$150b2o8b2o$93b2o$93bobo$93bo10bo$103b2o$46bobo54bobo$47b2o$<br />
47bo10bo$56bobo$57b2o$150b2o8b2o$3bobo143bo2bo6bo2bo$3b2o144b3o8b3o$4b<br />
o70b2o75b8o$bo73b2o69b2o3bo2b4o2bo$b2o142bobo3b2o2b2o2b2o$obo55bo88bo$<br />
58b2o$57bobo2$101b2o$81b2o4b3o10b2o$82b2o5bo12bo$51b2o28bo6bo$50bobo$<br />
52bo18b2o$70bobo$72bo30bo$80b2o20b2o$80bobo19bobo$80bo![[ THEME 6 GRID THUMBNAIL THUMBSIZE 2 ]]}}</center><br />
<br />
Notice that in the first step, two [[block]]s are created using a total of four gliders. This may be the most obvious way to synthesise them, but is it the cheapest?<br />
<br />
This is where [[2718281828]]'s [https://github.com/dvgrn/b3s23life/tree/master/three-glider-collisions/synthesise-constellation 3G collision database] comes in. It contains ~460,000 different three-glider collisions and the objects/constellations they produce, and includes a Python script created by [[Goldtiger997]] to search through the database. Download the three files and place them somewhere convenient, preferably your <tt>Scripts/Python</tt> folder. In Golly, paste the desired constellation into a new layer and run <tt>synthesise-constellation.py</tt>. If there are any collisions in the database that produce the same objects in the same positions relative to each other, they will all be displayed.<br />
<br />
Let's try this with our two-block constellation. After running the script, we get this:<br />
<br />
<center>{{LV:Viewer|x = 268, y = 36, rule = B3/S23<br />
2bo61bo35bo67bo44bo36bo$obo61bobo34b2o63b2o46b2o35b2o$b2o61b2o34b2o65b<br />
2o44b2o35b2o2$218bo36bo$216b2o35b2o$217b2o35b2o17$111bo39bo$112bo39bo$<br />
13bo37bo58b3o37b3o$14bo37bo$12b3o35b3o62bo39bo$113b2o38b2o$114b2o38b2o<br />
$13b2o36b2o$13bobo35bobo$13bo37bo$201bo64bo$201b2o62b2o$200bobo62bobo![[ THEME 6 GRID THUMBNAIL THUMBSIZE 2 ]]}}</center><br />
<br />
All six of these collisions work in essentially the same way, by colliding a glider with a [[pi-heptomino]]. Since the two blocks are the first step of our lightweight emulator synthesis, we don't have to worry about other nearby objects interfering, so any of these will be suitable. In other cases, you may have to try several of these collisions before finding one that works for the synthesis you're working on.<br />
<br />
Now that we have a three-glider collision of the two blocks, our lightweight emulator synthesis has been reduced to 24 gliders, which is currently the cheapest known as of the time of writing:<br />
<br />
<center>{{LV:Viewer|x = 167, y = 47, rule = B3/S23<br />
87bo$66bo21b2o$64bobo20b2o$65b2o26bo$91b2o$92b2o19bo$111b2o$82bo<br />
29b2o$67bo7bobo3bo$68bo6b2o4b3o$66b3o7bo2$105bo58bo$105bobo43b2o2b<br />
2o2b2o3bobo$90b2o13b2o44bo2b4o2bo3b2o$90b2o60b8o$149b3o8b3o$106b2o<br />
41bo2bo6bo2bo$105b2o43b2o8b2o$107bo8b2o$116bobo$116bo$o$b2o3bo$2o<br />
3b2o$5bobo57bo$63bobo$64b2o8bo$75b2o73b2o8b2o$74b2o73bo2bo6bo2bo$<br />
149b3o8b3o$90b2o60b8o$75b2o13b2o59bo2b4o2bo$74bobo74b2o2b2o2b2o$<br />
76bo$31b2o$30b2o73bo7b3o$32bo65b3o4b2o6bo$100bo3bobo7bo$68b2o29bo$<br />
69b2o$68bo19b2o$89b2o$88bo26b2o$93b2o20bobo$92b2o21bo$94bo![[ THEME 6 GRID THUMBNAIL THUMBSIZE 2 ]]}}</center><br />
<br />
==Submitting syntheses to Catagolue==<br />
<br />
Once you've completed a new record-breaking synthesis for a still life, oscillator, or spaceship, you can add it to the object's Catagolue page by pasting the [[RLE]] into the submission box at the bottom of the [https://catagolue.appspot.com/syntheses "Syntheses" page]. There are some important things to note about how to format the pattern in order for it to be interpreted correctly:<br />
*The rule must be either B3/S23 or [[LifeHistory]] (in the latter case only states 0 and 1 are allowed).<br />
*The pattern must not exceed a [[bounding box]] of 9999&times;9999, a [[population]] of 100,000, or a file size of 400 kilobytes.<br />
*[[xWSS]]es ''are'' allowed to substitute for gliders, and will be automatically converted into their respective three-glider collisions. The only time this does ''not'' work correctly is when two or more xWSSes come from the same direction during the same synthesis step, in which case one should double-check that the synthesis is actually valid (i.e. the gliders can come from infinity and still produce the same result).<br />
*Each individual step, including the gliders/xWSSes, must be separated by at least 20 empty rows/columns.<br />
*Every glider/xWSS must begin interacting before generation 200, and each step should overall stabilize by generation 4000. If your synthesis does not meet this requirement, there's unfortunately not much that can be done about it other than posting it somewhere else (e.g. the forums or Discord).<br />
*The initial pattern in each step must match the resulting pattern of the previous step (though rotations/reflections are allowed).<br />
*Although the synthesis RLEs on Mark Niemiec's website have the final object displayed next to the synthesis for each individual step, these are technically redundant and should be removed from the pattern when submitting to Catagolue.<br />
<br />
When you submit, your RLE is added to [https://catagolue.appspot.com/readsynth a queue] to be processed by the automatic update process, which runs every 8 hours. If you're not sure whether your synthesis is on Catagolue yet, you can check the [https://gitlab.com/apgoucher/catagolue/-/jobs "Jobs" page on the Catagolue repository], particularly the jobs named <tt>shinjuku</tt>, to see the console output for the update process. [https://en.wikipedia.org/wiki/Dijkstra%27s_algorithm Djikstra's algorithm] is used to calculate the shortest path to the desired object using the known components, so you may find that earlier steps of your synthesis have been replaced by an already-known cheaper way of producing the same intermediate object.<br />
<br />
[[Category:Tutorials|Glider syntheses]]</div>Freywahttp://conwaylife.com/wiki/P43_snark_loopP43 snark loop2019-06-12T15:03:13Z<p>Freywa: A bit faster, please</p>
<hr />
<div>{{Oscillator<br />
|name = p43 snark loop<br />
|pname = p43gliderloop<br />
|c = 228<br />
|bx = 65<br />
|by = 65<br />
|p = 43<br />
|m = 43<br />
|h = 66.05<br />
|v = 0.81<br />
|discoverer = Mike Playle<br />
|discoveryear = 2013<br />
|rulemin = B3/S23<br />
|rulemax = B38/S238<br />
|rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|isorulemin = B3/S23<br />
|isorulemax = B34c8/S234c5e6n8<br />
|synthesis = 226<br />
|rle = true<br />
|viewerconfig = #C [[ THUMBSIZE 2 GPS 10 LOOP 43 ZOOM 8 HEIGHT 600 WIDTH 600 POPUPHEIGHT 600 POPUPWIDTH 600 ]]<br />
|apgcode = xp43_ylo8bp6o8g0s4gozyfggy31230343zyg346y133zym217wggx2c6ycgzyr1226yd6511zwg4cy7a64yo8acxooxg89fgkczw1plll2y7c871yfgs26y78llljgz651ui21x33x6a2yo4cay7641zy5ggkcydc88gzy51ycc68x11wsg8zyvooy1c4ozyqo4o0o8gy311zyn31470123cjq23<br />
}}<br />
The '''p43 snark loop''' is a [[period]] [[:Category:Oscillators with period 43|43]] [[oscillator]] made from [[Snark]] reflectors. It is the smallest of an infinite family of Snark-based [[adjustable glider loops]] that can have any period from 43 up.<br />
<br />
There are much smaller glider loops containing four gliders, with a total signal path length of 216+8N and therefore adjustable to any period of the form 54+2n. However, this is the smallest loop that can contain eight gliders, which is a requirement for universal adjustability.<br />
<br />
A 226-[[glider]] [[synthesis]] of this oscillator was discovered by Jeremy Tan on June 9, {{year|2019}}.<ref name="post77388" /><br />
<br />
==References==<br />
<references><br />
<ref name="post77388">{{LinkForumThread<br />
|format = ref<br />
|title = p43 snark loop synthesis<br />
|p = 77388<br />
|author = Jeremy Tan<br />
|date = June 9, 2019<br />
}}</ref><br />
</references><br />
<br />
==External links==<br />
{{LinkCatagolue|xp43_ylo8bp6o8g0s4gozyfggy31230343zyg346y133zym217wggx2c6ycgzyr1226yd6511zwg4cy7a64yo8acxooxg89fgkczw1plll2y7c871yfgs26y78llljgz651ui21x33x6a2yo4cay7641zy5ggkcydc88gzy51ycc68x11wsg8zyvooy1c4ozyqo4o0o8gy311zyn31470123cjq23|format=extended|patternname=p43 snark loop}}<br />
<br />
{{Symmetry|90degree}}<br />
{{DISPLAYTITLE:p43 snark loop}}</div>Freywahttp://conwaylife.com/wiki/Eater_bridge_eaterEater bridge eater2019-06-11T13:39:16Z<p>Freywa: ?</p>
<hr />
<div>{{Stilllife<br />
|name = Eater bridge eater<br />
|pname = eaterbridgeeater<br />
|c = 14<br />
|bx = 8<br />
|by = 5<br />
|fc = 27.9<br />
|rulemin = B/S23<br />
|rulemax = B378/S012345678<br />
|rulespecial = [[Conway's Game of Life|Conway Life]], [[HighLife]]<br />
|isorulemin = B/S2aek3nqr<br />
|isorulemax = B2ikn34-ain5-q6-k78/S012345678<br />
|synthesis = 5<br />
|synthesisRLE = true<br />
|plaintext = true<br />
|rle = true<br />
|apgcode = xs14_354cgs26<br />
|niemiecid = 14.172<br />
|pentadecathlonid = 14.295<br />
|viewerconfig = [[ THUMBSIZE 2 ]]<br />
}}<br />
'''Eater bridge eater''' is a [[:Category:strict still lifes with 14 cells|14]]-[[cell]] [[still life]] commonly used in [[signal]] [[converter]] circuitry, composed of two diagonally-touching [[eater 1]]s. In the [[F116]] and [[Fx176]] [[Herschel conduit]]s, its two component eaters have standard eating functions. In the [[135-degree MWSS-to-G]], [[30P6.1]] and [[60P72]], the [[catalyst]] is on the opposite side of the object, and the slightly smaller [http://conwaylife.com/w/index.php?title=RLE:snakebridgebehindeatertail&action=edit snake bridge behind eater tail] can be used instead. In the case of the MWSS-to-G, there are known [[recipe]]s that allow the eater-bridge-eater variant to be constructed with [[slow salvo]]s in any orientation, so this variant is more commonly used.<br />
<br />
A more precise name for this still life is Mark Niemiec's '''Eater tail bridge behind eater tail'''. This is too long and technical to find its way into common usage, but it correctly distinguishes this object from related still lifes such as eater tail bridge eater tail, eater head tie up eater head, eater head tie down eater head, eater head bridge eater tail, and eater head behind eater. <br />
<br />
'''Eater tie eater''' and '''welded eaters''' have also been used to refer to this still life on occasion, but both of these terms are technically incorrect. A [[weld]] implies an overlap between welded objects, and a [[tie]] is a point-to-point connection along the lines of a [[boat-tie]]. The name [[eater tie eater]] has been in use for many years in Mark Niemiec's database, referring to a different object.<br />
<br />
==See also==<br />
*[[Bridge]]<br />
<br />
==External links==<br />
{{LinkCatagolue|xs14_354cgs26}}<br />
{{LinkNiemiec|14/14-172.rle|patternname=14.172}}</div>Freywahttp://conwaylife.com/wiki/Eater/block_frobEater/block frob2019-06-11T13:14:43Z<p>Freywa: viewerconfig</p>
<hr />
<div>{{Oscillator<br />
|name = Eater/block frob<br />
|pname = eaterblockfrob<br />
|c = 20<br />
|bx = 10<br />
|by = 10<br />
|p = 4<br />
|m = 4<br />
|h = 8.5<br />
|v = 0.55<br />
|sv = 0.55<br />
|discoverer = David Buckingham<br />
|rulemin = B3/S23<br />
|rulemax = B3678/S023678<br />
|rulespecial = [[Conway's Game of Life|Conway Life]], [[HighLife]]<br />
|isorulemin = B3-ceky/S2-n3-ejky<br />
|isorulemax = B2i34-ajnr5-acq678/S0234-ajnrw5-ijq678<br />
|synthesis = 12<br />
|synthesisRLE = true<br />
|plaintext = true<br />
|rle = true<br />
|animated = true<br />
|viewerconfig = #C [[ LOOP 4 GPS 2 THUMBSIZE 2 ]]<br />
|apgcode = xp4_64k8wc871zx1ro<br />
|pentadecathlonid = 20P4.4<br />
}}<br />
'''Eater/block frob''' is a [[period]] [[:Category:Oscillators with period 4|4]] [[oscillator]] found by [[:Category:Patterns found by David Buckingham|David Buckingham]] in [[:Category:Patterns found in 1976|1976]] or earlier. It is composed of an [[eater 1]], a [[block]], and what is roughly a [[hook with tail]]. It is most useful in its use in the [[p4 bumper]]. It is an [[eater 5]] constantly being renewed by an [[eater 1]]. The [[block]] can be replaced with a [[long hook with tail]], and the [[eater 1]] can be replaced with a [[LW emulator]], [[MW emulator]] or [[HW emulator]].<br />
<br />
==External links==<br />
{{LinkLexicon|lex_e.htm#eaterblockfrob}}<br />
{{LinkCatagolue|xp4_64k8wc871zx1ro}}<br />
{{LinkPentadecathlonObject|20P4.4}}<br />
[[Category:Sparkers]]<br />
[[Category:Sparkers with period 4]]<br />
[[Category:Weak sparkers]]</div>Freywahttp://conwaylife.com/wiki/RLE:EaterblockfrobRLE:Eaterblockfrob2019-06-11T13:14:00Z<p>Freywa: RLE</p>
<hr />
<div>x = 10, y = 10, rule = B3/S23<br />
b2o$2bo$2bobo$3bobo$5b2ob2o$8b2o$2b2o$3bo$3o$o!</div>Freywahttp://conwaylife.com/wiki/Scot%27s_p5Scot's p52019-06-11T13:05:39Z<p>Freywa: viewerconfig</p>
<hr />
<div>{{Oscillator<br />
|name = Scot's p5<br />
|pname = scotsp5<br />
|c = 28<br />
|bx = 13<br />
|by = 8<br />
|p = 5<br />
|m = 5<br />
|h = 32.8<br />
|v = 0.94<br />
|discoverer = Scot Ellison<br />
|discoveryear = 2008<br />
|rulemin = B3/S23<br />
|rulemax = B378/S238<br />
|rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|isorulemin = B3/S23-cky<br />
|isorulemax = B2n34ejnqz5aijny6cen78/S234-ajqrz5-ijr6-ac7c8<br />
|synthesis = 27<br />
|plaintext = true<br />
|rle = true<br />
|animated = true<br />
|viewerconfig = #C [[ GPS 2 LOOP 5 THUMBSIZE 2 ]]<br />
|apgcode = xp5_4j8qa606aq8j4zx26x62<br />
}}<br />
'''Scot's p5''' is a [[period]] [[:Category:Oscillators with period 5|5]] [[oscillator]] that was found by [[Scot Ellison]] in June [[:Category:Patterns found in 2008|2008]]. It has the third highest [[volatility]] of any known period 5 oscillator, after the [[statorless p5]] and [[swine]].<br />
<br />
==See also==<br />
*[[Period_5_oscillators#Smallest|Smallest period five oscillators]]<br />
*[[Period_5_oscillators#highest_volatility|Largest volatility period five oscillators]]<br />
*[[Swine]]<br />
<br />
== External links ==<br />
{{LinkCatagolue|xp5_4j8qa606aq8j4zx26x62}}<br />
<br />
{{Symmetry|orthogonal2}}<br />
[[Category:Sparkers]]<br />
[[Category:Sparkers with period 5]]<br />
[[Category:Moderate sparkers]]<br />
[[Category:Domino sparkers]]<br />
{{seminatural}}</div>Freywahttp://conwaylife.com/wiki/RLE:Scotsp5RLE:Scotsp52019-06-11T13:05:11Z<p>Freywa: RLE</p>
<hr />
<div>x = 13, y = 7, rule = B3/S23<br />
4bo3bo$3bobobobo$2bo7bo2$b3o5b3o$4b2ob2o$3ob2ob2ob3o!</div>Freywahttp://conwaylife.com/wiki/Ship_in_a_bottleShip in a bottle2019-06-11T09:28:29Z<p>Freywa: viewerconfig</p>
<hr />
<div>{{Oscillator<br />
|name = Ship in a bottle<br />
|pname = shipinabottle<br />
|c = 86<br />
|bx = 18<br />
|by = 18<br />
|p = 16<br />
|m = 8<br />
|h = 45<br />
|v = 0.70<br />
|sv = 0.12<br />
|discoverer = Bill Gosper<br />
|discoveryear = 1994<br />
|rulemin = B3/S23<br />
|rulemax = B378/S0238<br />
|rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|isorulemin = B3aijnr/S2-n3-ae<br />
|isorulemax = B2i34city5cei6-kn78/S0234ceijqtw5ackry6ikn7e8<br />
|synthesis = 49<br />
|plaintext = true<br />
|rle = true<br />
|animated = true<br />
|viewerconfig = #C [[ LOOP 16 GPS 4 THUMBSIZE 2 ZOOM 20 HEIGHT 480 ]]<br />
|apgcode = xp16_g8861daowoad1688gz12174wokcx47121zcik71ggowogg17kiczx3452y02543<br />
|pentadecathlonid = 86P16.2<br />
}}<br />
'''Ship in a bottle''' is a [[period]] [[:Category:Oscillators with period 16|16]] [[oscillator]] found by [[:Category:Patterns found by Bill Gosper|Bill Gosper]] in August [[:Category:Patterns found in 1994|1994]].<br />
<br />
==See also==<br />
*[[Bottle]]<br />
*[[Ship]]<br />
<br />
==External links==<br />
{{LinkLexicon|lex_s.htm#shipinabottle}}<br />
{{LinkCatagolue|xp16_g8861daowoad1688gz12174wokcx47121zcik71ggowogg17kiczx3452y02543}}<br />
{{LinkPentadecathlonObject|86P16.2}}<br />
<br />
{{Symmetry|diagonal2|osc=flip}}</div>Freywahttp://conwaylife.com/wiki/RLE:ShipinabottleRLE:Shipinabottle2019-06-11T09:28:14Z<p>Freywa: RLE</p>
<hr />
<div>x = 18, y = 18, rule = B3/S23<br />
4b2o6b2o$3bo2bo4bo2bo$3bobo6bobo$b2o2b3o2b3o2b2o$o6bo2bo6bo$ob2o10b2o<br />
bo$bobo10bobo$3b2o3b2o3b2o$7bobo$7b2o$3b2o8b2o$bobo10bobo$ob2o10b2obo<br />
$o6bo2bo6bo$b2o2b3o2b3o2b2o$3bobo6bobo$3bo2bo4bo2bo$4b2o6b2o!</div>Freywahttp://conwaylife.com/wiki/BottleBottle2019-06-11T09:27:02Z<p>Freywa: viewerconfig</p>
<hr />
<div>{{Oscillator<br />
|name = Bottle<br />
|pname = bottle<br />
|c = 80<br />
|bx = 18<br />
|by = 18<br />
|p = 8<br />
|m = 8<br />
|h = 44<br />
|v = 0.68<br />
|sv = 0.64<br />
|discoverer = Achim Flammenkamp<br />
|discoveryear = 1994<br />
|rulemin = B3/S23<br />
|rulemax = B378/S0238<br />
|rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|isorulemin = B3aijnr/S2-n3-ae<br />
|isorulemax = B2i34city5cei6-kn78/S0234-akryz5-ijnq6-ac7e8<br />
|synthesis = 46<br />
|plaintext = true<br />
|rle = true<br />
|animated = yes<br />
|viewerconfig = #C [[ LOOP 8 GPS 2 THUMBSIZE 2 ZOOM 20 HEIGHT 480 ]]<br />
|apgcode = xp8_g8861d688886d1688gz123ty6t321zcim50g0gggg0g05miczx3453y03543<br />
|pentadecathlonid = 80P8.2<br />
}}<br />
'''Bottle''' is a [[period]] [[:Category:Oscillators with period 8|8]] [[oscillator]] found by [[:Category:Patterns found by Achim Flammenkamp|Achim Flammenkamp]] in August [[:Category:Patterns found in 1994|1994]]. The name is a back-formation from [[ship in a bottle]].<br />
<br />
==External links==<br />
{{LinkLexicon|lex_b.htm#bottle}}<br />
{{LinkCatagolue|xp8_g8861d688886d1688gz123ty6t321zcim50g0gggg0g05miczx3453y03543}}<br />
{{LinkPentadecathlonObject|80P8.2}}<br />
<br />
{{Symmetry|full}}<br />
{{seminatural}}</div>Freywahttp://conwaylife.com/wiki/RLE:BottleRLE:Bottle2019-06-11T09:25:35Z<p>Freywa: RLE</p>
<hr />
<div>x = 18, y = 18, rule = B3/S23<br />
4b2o6b2o$3bo2bo4bo2bo$3bobo6bobo$b2o2b3o2b3o2b2o$o6bo2bo6bo$ob2o10b2ob<br />
o$bobo10bobo$3b2o8b2o3$3b2o8b2o$bobo10bobo$ob2o10b2obo$o6bo2bo6bo$b2o<br />
2b3o2b3o2b2o$3bobo6bobo$3bo2bo4bo2bo$4b2o6b2o!</div>Freywahttp://conwaylife.com/wiki/Period-184_glider_gunPeriod-184 glider gun2019-06-11T04:19:50Z<p>Freywa: 15 gliders</p>
<hr />
<div>{{Gun<br />
|name = Period-184 glider gun<br />
|pname = p184gun<br />
|c = 38<br />
|bx = 31<br />
|by = 31<br />
|p = 184<br />
|b = 2<br />
|discoverer = David Buckingham<br />
|discoveryear = 1996<br />
|rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|synthesis = 15<br />
|synthesisRLE = true<br />
|plaintext = true<br />
|rle = true<br />
|viewerconfig = #C [[ THUMBSIZE 2 HEIGHT 480 X 3 Y 3 Z 12 GPS 23 ]]<br />
}}<br />
'''Period-184 glider gun''' is a true period 184 [[double-barrelled]] [[glider]] gun found by [[Dave Buckingham]] in July [[:Category:Patterns found in 1996|1996]]. The [[engine]] in this gun is a [[Herschel descendant]]. Unlike previously discovered glider guns, the reaction flips on a diagonal so that both gliders travel in the same direction. This is the fourth smallest gun, after the [[Period-156 glider gun]], [[Gosper glider gun]] and [[Simkin glider gun]].<br />
<br />
==External links==<br />
{{LinkLexicon|lex_p.htm#p184gun}}</div>Freywahttp://conwaylife.com/wiki/B-52_bomberB-52 bomber2019-06-11T04:08:47Z<p>Freywa: Thus it costs 31 gliders</p>
<hr />
<div>{{Gun<br />
|name = B-52 bomber<br />
|pname = b52bomber<br />
|c = 85<br />
|bx = 39<br />
|by = 21<br />
|p = 104<br />
|b = 2<br />
|discoverer = Noam Elkies<br />
|discoverer2 = David Bell<br />
|discoveryear = 1996<br />
|synthesis = 31<br />
|synthesisRLE = true<br />
|plaintext = true<br />
|rle = true<br />
|animated = yes<br />
|viewerconfig = #C [[ THUMBSIZE 2 GPS 12 ]]<br />
}}<br />
{{disambiglink|name=bomber|link=Bomber|text=For other uses of the term}}<br />
The '''B-52 bomber''' is a [[period]] [[:Category:Guns with period 104|104]] double-barrelled [[gun|glider gun]]. It uses two [[blocker]]s, two [[mold]]s, two [[block]]s and two [[tub]]s to [[hassle]] a [[B-heptomino]] as a shuttle, and thus emits one [[glider]] every 52 generations. It was found by [[Noam Elkies]] on March 21, [[:Category:Patterns found in 1996|1996]], except that Elkies used two more blockers in place of the two molds. This smaller version was found by [[David Bell]] later the same month.<br />
<br />
==External links==<br />
{{LinkLexicon|lex_b.htm#b52bomber}}</div>Freywahttp://conwaylife.com/wiki/B-52_bomberB-52 bomber2019-06-11T04:05:03Z<p>Freywa: viewerconfig</p>
<hr />
<div>{{Gun<br />
|name = B-52 bomber<br />
|pname = b52bomber<br />
|c = 85<br />
|bx = 39<br />
|by = 21<br />
|p = 104<br />
|b = 2<br />
|discoverer = Noam Elkies<br />
|discoverer2 = David Bell<br />
|discoveryear = 1996<br />
|plaintext = true<br />
|rle = true<br />
|animated = yes<br />
|viewerconfig = #C [[ THUMBSIZE 2 GPS 12 ]]<br />
}}<br />
{{disambiglink|name=bomber|link=Bomber|text=For other uses of the term}}<br />
The '''B-52 bomber''' is a [[period]] [[:Category:Guns with period 104|104]] double-barrelled [[gun|glider gun]]. It uses two [[blocker]]s, two [[mold]]s, two [[block]]s and two [[tub]]s to [[hassle]] a [[B-heptomino]] as a shuttle, and thus emits one [[glider]] every 52 generations. It was found by [[Noam Elkies]] on March 21, [[:Category:Patterns found in 1996|1996]], except that Elkies used two more blockers in place of the two molds. This smaller version was found by [[David Bell]] later the same month.<br />
<br />
==External links==<br />
{{LinkLexicon|lex_b.htm#b52bomber}}</div>Freywahttp://conwaylife.com/wiki/RLE:B52bomberRLE:B52bomber2019-06-11T04:03:45Z<p>Freywa: RLE</p>
<hr />
<div>x = 39, y = 21, rule = B3/S23<br />
b2o$b2o17bo$19bobo12bobo$20bo12bo$2o7b2o23bo2bo$2obo5b2o23bobobo$3bo<br />
23bo7bo2bo$3bo23b2o7b2o$o2bo17b2o5bo$b2o18bo$21b3o$36b2o$36b2o$b2o$o2b<br />
o$obobo23b2o5b2o$bo2bo23b2o5b2obo$5bo12bo19bo$2bobo12bobo18bo$18bo16bo<br />
2bo$36b2o!</div>Freywahttp://conwaylife.com/wiki/Pipsquirter_1Pipsquirter 12019-06-11T03:08:18Z<p>Freywa: viewerconfig</p>
<hr />
<div>{{Oscillator<br />
|name = Pipsquirter 1<br />
|pname = pipsquirter1<br />
|c = 50<br />
|bx = 15<br />
|by = 14<br />
|p = 6<br />
|m = 6<br />
|h = 9<br />
|v = 0.41<br />
|sv = 0.41<br />
|discoverer = Noam Elkies<br />
|discoveryear = 1997<br />
|rulemin = B3/S23<br />
|rulemax = B378/S23678<br />
|rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|isorulemin = B3-j/S23<br />
|isorulemax = B34ceq5aci6en78/S234acjkqrw5-e678<br />
|synthesis = 207<br />
|synthesisRLE = true<br />
|plaintext = true<br />
|rle = true<br />
|apgcode = xp6_oe1dicggz6t1mhmgn8a6zw122qq1<br />
|animated = true<br />
|viewerconfig = #C [[ GPS 3 LOOP 6 THUMBSIZE 2 ]]<br />
}}<br />
'''Pipsquirter 1''' is a [[period]] [[:Category:Oscillators with period 6|6]] [[pipsquirter]] that was found in November [[:Category:Patterns found in 1997|1997]] by [[:Category:Patterns found by Noam Elkies|Noam Elkies]]. It features a [[block]] acting as an [[induction coil]] and its [[phase]]s have 50, 50, 53, 50, 52, and 53 [[cell]]s, respectively.<br />
<br />
==Synthesis==<br />
[[Martin Grant]] found a 276-glider synthesis of pipsquirter 1 on March 17, 2016.<ref name="post28716" /><br />
<br />
==Image gallery==<br />
{|<br />
|-<br />
|[[Image:pipsquirter1_spark.png|framed|left|Generation 5 reveals that this [[oscillator]] really is a pipsquirter]]<br />
|}<br />
<br />
==As a reflector==<br />
Pipsquirter 1 has the ability to act as a 90-degree [[glider]] [[reflector]] when it is combined with a [[block]], [[boat]] and [[eater 1]]. The input path (in green) and output path (in red) of the glider are shown below.<br />
<br />
[[Image:pipsquirter_1_reflector.png|framed|center|Pipsquirter 1 acting as a reflector<br />{{JavaRLE|pipsquirter1asreflector}}]]<br />
<br />
==See also==<br />
*[[Pipsquirter 2]]<br />
<br />
==References==<br />
<references><br />
<ref name="post28716">{{LinkForumThread<br />
|format = ref<br />
|p = 28716<br />
|title = Re: Synthesising Oscillators<br />
}}</ref><br />
</references><br />
<br />
==External links==<br />
{{LinkWeisstein|Pipsquirter.html}}<br />
{{LinkLexicon|lex_p.htm#pipsquirter|name=p6 pipsquirter}}<br />
{{LinkCatagolue|xp6_oe1dicggz6t1mhmgn8a6zw122qq1}}<br />
<br />
[[Category:Sparkers]]<br />
[[Category:Sparkers with period 6]]<br />
[[Category:Strong sparkers]]<br />
[[Category:Domino sparkers]]<br />
__NOTOC__</div>Freywahttp://conwaylife.com/wiki/RLE:Pipsquirter1RLE:Pipsquirter12019-06-11T03:07:43Z<p>Freywa: RLE</p>
<hr />
<div>x = 15, y = 11, rule = B3/S23<br />
3b2ob2o$b3obob3o$o4bo4bo$ob2o2b2obobo$bo2b2o3bobo$2b2o2b2obobob2o$4bo<br />
4bobob2o$4b4ob2o$8bo$6bobo$6b2o!</div>Freywahttp://conwaylife.com/wiki/Simkin%27s_p60Simkin's p602019-06-11T03:05:12Z<p>Freywa: Will cost 36 gliders in latest update</p>
<hr />
<div>{{Oscillator<br />
|name = Simkin's p60<br />
|pname = simkinsp60<br />
|c = 70<br />
|bx = 33<br />
|by = 31<br />
|p = 60<br />
|m = 60<br />
|h = 32.8<br />
|v = 0.92<br />
|sv = 0.92<br />
|discoverer = Michael Simkin<br />
|discoveryear = 2015<br />
|rulemin = B3/S23<br />
|rulemax = B38/S238<br />
|rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|isorulemin = B3/S23<br />
|isorulemax = B34c8/S234ce8<br />
|synthesis = 36<br />
|plaintext = true<br />
|rle = true<br />
|viewerconfig = #C [[ GPS 15 LOOP 60 THUMBSIZE 2 WIDTH 480 HEIGHT 480 ]]<br />
|apgcode = xp60_y53jzy42levgz0oggy1131y9m24871zwg25cyf15a8oz470123y88smczyf7b52zyg66<br />
}}<br />
'''Simkin's p60''' is a [[period]] [[:Category:Oscillators with period 60|60]] [[oscillator]] consisting of two [[B60]] conduits. It is the smallest known [[emu]]. Due to the fact that in order to directly liberate the [[first natural glider]]s the period must be 69 or above, two [[eater 5]] variants must be used to suppress the FNG before it hits the next [[Herschel]].<br />
<br />
In other similar situations where the gliders must be removed even more quickly, a [[sparker]] such as the [[p6 pipsquirter]] can be used instead, but an eater 5 is much more compact and works just as well in this case.<br />
<br />
==See also==<br />
*[[Simkin glider gun]]<br />
<br />
==External links==<br />
{{LinkCatagolue|xp60_y53jzy42levgz0oggy1131y9m24871zwg25cyf15a8oz470123y88smczyf7b52zyg66}}<br />
<br />
{{symmetry|180degree}}</div>Freywahttp://conwaylife.com/wiki/44P12.344P12.32019-06-10T17:33:19Z<p>Freywa: You've missed it</p>
<hr />
<div>{{Oscillator<br />
|name = 44P12.3<br />
|pname = 44p12.3<br />
|c = 44<br />
|bx = 14<br />
|by = 14<br />
|p = 12<br />
|m = 12<br />
|h = 38<br />
|v = 0.87<br />
|sv = 0.87<br />
|discoverer = Nicolay Beluchenko<br />
|discoveryear = 2009<br />
|rulemin = B3/S23<br />
|rulemax = B38/S238<br />
|rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|isorulemin = B3-cky/S2-n3<br />
|isorulemax = B34ciqry5ac6ce8/S234cez5ckqry6ain7e8<br />
|synthesis = 66<br />
|synthesisRLE = true<br />
|rle = true<br />
|plaintext = true<br />
|apgcode = xp12_xg8kmjgz4630fgmmgfgc62zy2c621<br />
|pentadecathlonid = 44P12.3<br />
|animated = yes<br />
|viewerconfig = #C [[ THUMBSIZE 3 GPS 5 ZOOM 24 HEIGHT 500 WIDTH 500 ]]<br />
}}<br />
'''44P12.3''' (or '''Eye of Sauron'''<ref name="post">{{LinkForumThread<br />
|p = 77410<br />
|title = Re: Synthesizing Oscillators<br />
|author = Jeremy Tan<br />
|format = ref<br />
}}</ref>) is a [[period]] [[:Category:Oscillators with period 12|12]] [[oscillator]] discovered by Nicolay Beluchenko on March 26, 2009.<ref name="post18959">{{LinkForumThread<br />
|p = 18959<br />
|title = Re: Soup search results<br />
|author = Matthias Merzenich<br />
|format = ref<br />
}}</ref><ref>{{CiteSummersPattern}}</ref><br />
<br />
On January 12, {{year|2019}}, [[Tanner Jacobi]] used it along with [[dueling banjos]], a [[heavyweight emulator]] variant, and [[Pipsquirter 1]] to build a period 24 [[glider gun]] which was then optimized by [[Matthias Merzenich]] the next day to be smaller than the [[period-24 glider gun|previous record holder]].<ref name="post67786" /><ref name="post67805" /><br />
<br />
==References==<br />
<references><br />
<ref name="post67786">{{LinkForumThread<br />
|p = 67786<br />
|title = Re: Oscillator Discussion Thread<br />
|author = Tanner Jacobi<br />
|format = ref<br />
}}</ref><br />
<ref name="post67805">{{LinkForumThread<br />
|p = 67805<br />
|title = Re: Execution of Old Guns by Variable-Speed Firing Squad<br />
|author = Matthias Merzenich<br />
|format = ref<br />
}}</ref><br />
</references><br />
<br />
== External links ==<br />
{{LinkNiemiec|p12.htm#p12-lg|patternname=4 period 12 oscillators 26 bits and larger}}<br />
{{LinkPentadecathlonObject|44P12.3}}<br />
{{LinkCatagolue|xp12_xg8kmjgz4630fgmmgfgc62zy2c621}}<br />
<br />
{{Symmetry|diagonal4}}<br />
[[Category:Sparkers]]<br />
[[Category:Sparkers with period 12]]<br />
[[Category:Strong sparkers]]<br />
[[Category:Non-reflecting duoplet sparkers]]<br />
[[Category:Dot sparkers]]<br />
[[Category:Unnamed periodic objects]]<br />
{{seminatural}}</div>Freywahttp://conwaylife.com/wiki/38P7.238P7.22019-06-10T14:45:36Z<p>Freywa: viewerconfig</p>
<hr />
<div>{{Oscillator<br />
|name = 38P7.2<br />
|pname = 38p7.2<br />
|c = 38<br />
|bx = 15<br />
|by = 11<br />
|p = 7<br />
|m = 7<br />
|h = 23.4<br />
|v = 0.82<br />
|discoverer = Nicolay Beluchenko<br />
|discoveryear = 2009<br />
|rulemin = B3/S23<br />
|rulemax = B378/S238<br />
|rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|isorulemin = B3-cy/S23-y<br />
|isorulemax = B2n34ck5cen6ace78/S234ceikz5acnr6-c7e8<br />
|synthesis = 14<br />
|synthesisRLE = true<br />
|plaintext = true<br />
|rle = true<br />
|apgcode = xp7_wj3y13jz8kbr4u0u4rbk8zy01x1<br />
|pentadecathlonid = 38P7.2<br />
|animated = true<br />
|viewerconfig = #C [[ ZOOM 27 GPS 3 LOOP 7 HEIGHT 480 WIDTH 480 ]]<br />
}}<br />
'''38P7.2''' is an unnamed [[period]] [[:Category:oscillators with period 7|7]] [[oscillator]] discovered by [[Nicolay Beluchenko]] on February 17, [[:Category:patterns found in 2009|2009]].<ref>{{CiteSummersPattern|name=all-osc}}</ref> It provides six [[spark]]s in [[generation]] 4 that are useful in creating non-trivial oscillators of higher periods such as [[snacker on 38P7.2]]. A variation of this oscillator can be created by displacing one half of the oscillator by two [[cell]]s.<br />
<br />
gmc_nxtman found an 18-glider synthesis of this oscillator on August 13, 2017.<ref>{{cite web|url=http://conwaylife.com/forums/viewtopic.php?f=2&p=48743#p48743|title=Re: Soup Search Results|author=gmc_nxtman|date=August 13, 2017|accessdate=August 13, 2017}}</ref><br />
<br />
==Image gallery==<br />
{|<br />
|-<br />
|[[Image:38p7.3.png|framed|left|An alternate form of this oscillator<br/>{{JavaRLE|38p7.3|brief}}]]<br />
|}<br />
<br />
==See also==<br />
*[[37P7.1]]<br />
*[[Burloaferimeter]]<br />
<br />
==References==<br />
<references/><br />
<br />
==External links==<br />
*[http://pentadecathlon.com/lifeNews/2009/03/new_oscillators_4.html New Oscillators] at Game of Life News<br />
{{LinkCatagolue|xp7_wj3y13jz8kbr4u0u4rbk8zy01x1}}<br />
{{LinkPentadecathlonObject|38P7.2}}<br />
<br />
{{Symmetry|orthogonal2}}<br />
[[Category:Sparkers]]<br />
[[Category:Sparkers with period 7]]<br />
[[Category:Strong sparkers]]<br />
[[Category:Dot sparkers]]<br />
[[Category:Unnamed periodic objects]]<br />
{{seminatural}}</div>Freywahttp://conwaylife.com/wiki/RLE:38p7.2RLE:38p7.22019-06-10T14:44:17Z<p>Freywa: RLE</p>
<hr />
<div>x = 13, y = 11, rule = B3/S23<br />
4bo3bo$o2bobobobo2bo$obo2bobo2bobo$bo2b2ob2o2bo$5bobo$2b2o5b2o$2bo7bo$<br />
4bo3bo2$bo2bo3bo2bo$2b2o5b2o!</div>Freywahttp://conwaylife.com/wiki/44P12.344P12.32019-06-10T14:03:05Z<p>Freywa: And then some!</p>
<hr />
<div>{{Oscillator<br />
|name = 44P12.3<br />
|pname = 44p12.3<br />
|c = 44<br />
|bx = 14<br />
|by = 14<br />
|p = 12<br />
|m = 12<br />
|h = 38<br />
|v = 0.87<br />
|sv = 0.87<br />
|discoverer = Nicolay Beluchenko<br />
|rulemin = B3/S23<br />
|rulemax = B38/S238<br />
|rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|isorulemin = B3-cky/S2-n3<br />
|isorulemax = B34ciqry5ac6ce8/S234cez5ckqry6ain7e8<br />
|synthesis = 66<br />
|synthesisRLE = true<br />
|rle = true<br />
|plaintext = true<br />
|apgcode = xp12_xg8kmjgz4630fgmmgfgc62zy2c621<br />
|pentadecathlonid = 44P12.3<br />
|animated = yes<br />
|viewerconfig = #C [[ THUMBSIZE 3 GPS 5 ZOOM 24 HEIGHT 500 WIDTH 500 ]]<br />
}}<br />
'''44P12.3''' is an unnamed [[period]] [[:Category:Oscillators with period 12|12]] [[oscillator]], discovered by Nicolay Beluchenko.<ref name="post18959">{{LinkForumThread<br />
|p = 18959<br />
|title = Re: Soup search results<br />
|author = Matthias Merzenich<br />
|format = ref<br />
}}</ref><ref>{{CiteSummersPattern}}</ref><br />
<br />
On January 12, {{year|2019}}, [[Tanner Jacobi]] used it along with [[dueling banjos]], a [[heavyweight emulator]] variant, and [[Pipsquirter 1]] to build a period 24 [[glider gun]] which was then optimized by [[Matthias Merzenich]] the next day to be smaller than the [[period-24 glider gun|previous record holder]].<ref name="post67786" /><ref name="post67805" /><br />
<br />
==References==<br />
<references><br />
<ref name="post67786">{{LinkForumThread<br />
|p = 67786<br />
|title = Re: Oscillator Discussion Thread<br />
|author = Tanner Jacobi<br />
|format = ref<br />
}}</ref><br />
<ref name="post67805">{{LinkForumThread<br />
|p = 67805<br />
|title = Re: Execution of Old Guns by Variable-Speed Firing Squad<br />
|author = Matthias Merzenich<br />
|format = ref<br />
}}</ref><br />
</references><br />
<br />
== External links ==<br />
{{LinkNiemiec|p12.htm#p12-lg|patternname=4 period 12 oscillators 26 bits and larger}}<br />
{{LinkPentadecathlonObject|44P12.3}}<br />
{{LinkCatagolue|xp12_xg8kmjgz4630fgmmgfgc62zy2c621}}<br />
<br />
{{Symmetry|diagonal4}}<br />
[[Category:Sparkers]]<br />
[[Category:Sparkers with period 12]]<br />
[[Category:Strong sparkers]]<br />
[[Category:Non-reflecting duoplet sparkers]]<br />
[[Category:Dot sparkers]]<br />
[[Category:Unnamed periodic objects]]<br />
{{seminatural}}</div>Freywahttp://conwaylife.com/wiki/44P12.344P12.32019-06-10T12:27:25Z<p>Freywa: BlinkerSpawn and I have reduced it to 72</p>
<hr />
<div>{{Oscillator<br />
|name = 44P12.3<br />
|pname = 44p12.3<br />
|c = 44<br />
|bx = 14<br />
|by = 14<br />
|p = 12<br />
|m = 12<br />
|h = 38<br />
|v = 0.87<br />
|sv = 0.87<br />
|discoverer = Nicolay Beluchenko<br />
|rulemin = B3/S23<br />
|rulemax = B38/S238<br />
|rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|isorulemin = B3-cky/S2-n3<br />
|isorulemax = B34ciqry5ac6ce8/S234cez5ckqry6ain7e8<br />
|synthesis = 72<br />
|synthesisRLE = true<br />
|rle = true<br />
|plaintext = true<br />
|apgcode = xp12_xg8kmjgz4630fgmmgfgc62zy2c621<br />
|pentadecathlonid = 44P12.3<br />
|animated = yes<br />
|viewerconfig = #C [[ THUMBSIZE 3 GPS 5 ZOOM 24 HEIGHT 500 WIDTH 500 ]]<br />
}}<br />
'''44P12.3''' is an unnamed [[period]] [[:Category:Oscillators with period 12|12]] [[oscillator]], discovered by Nicolay Beluchenko.<ref name="post18959">{{LinkForumThread<br />
|p = 18959<br />
|title = Re: Soup search results<br />
|author = Matthias Merzenich<br />
|format = ref<br />
}}</ref><ref>{{CiteSummersPattern}}</ref><br />
<br />
On January 12, {{year|2019}}, [[Tanner Jacobi]] used it along with [[dueling banjos]], a [[heavyweight emulator]] variant, and [[Pipsquirter 1]] to build a period 24 [[glider gun]] which was then optimized by [[Matthias Merzenich]] the next day to be smaller than the [[period-24 glider gun|previous record holder]].<ref name="post67786" /><ref name="post67805" /><br />
<br />
==References==<br />
<references><br />
<ref name="post67786">{{LinkForumThread<br />
|p = 67786<br />
|title = Re: Oscillator Discussion Thread<br />
|author = Tanner Jacobi<br />
|format = ref<br />
}}</ref><br />
<ref name="post67805">{{LinkForumThread<br />
|p = 67805<br />
|title = Re: Execution of Old Guns by Variable-Speed Firing Squad<br />
|author = Matthias Merzenich<br />
|format = ref<br />
}}</ref><br />
</references><br />
<br />
== External links ==<br />
{{LinkNiemiec|p12.htm#p12-lg|patternname=4 period 12 oscillators 26 bits and larger}}<br />
{{LinkPentadecathlonObject|44P12.3}}<br />
{{LinkCatagolue|xp12_xg8kmjgz4630fgmmgfgc62zy2c621}}<br />
<br />
{{Symmetry|diagonal4}}<br />
[[Category:Sparkers]]<br />
[[Category:Sparkers with period 12]]<br />
[[Category:Strong sparkers]]<br />
[[Category:Non-reflecting duoplet sparkers]]<br />
[[Category:Dot sparkers]]<br />
[[Category:Unnamed periodic objects]]<br />
{{seminatural}}</div>Freywahttp://conwaylife.com/wiki/Boojum_reflectorBoojum reflector2019-06-10T12:17:09Z<p>Freywa: replace image with embedded viewer</p>
<hr />
<div>{{Reflector<br />
|name = Boojum reflector<br />
|pname = boojumreflector<br />
|type = Stable<br />
|c = 60<br />
|bx = 44<br />
|by = 32<br />
|a = 180<br />
|p = 202<br />
|discoverer = Dave Greene<br />
|discoveryear = 2001<br />
|plaintext = true<br />
|rle = true<br />
}}<br />
The '''boojum reflector''' is a [[reflector]] found by [[Dave Greene]] in April [[:Category:Patterns found in 2001|2001]], winning $100 bounties offered by [[Alan Hensel]] and [[Dieter Leithner]]. The name is taken from Lewis Carroll's ''The Hunting of the Snark'', referring to the fact that a small 90-degree stable reflector was really what was wanted.{{refn|group=note|180-degree reflectors are relatively undesirable and have limited use in larger circuitry constructions because they cannot get a glider to wherever it needs to be.}}<br />
<br />
The boojum reflector was both the smallest and fastest known [[stable reflector]], until it was superceded by the [[rectifier]] in 2009 and the [[snark]] in 2013.<br />
<br />
The boojum reflector produces an unwanted beehive, which is then deleted by a later glider. If the beehive is removed before the latter glider hits it, the glider will leave the reflector. This reaction can be seen in this p226 glider [[shuttle]]:<br />
{{EmbedViewer<br />
|pname = p226glidershuttle<br />
|position = center<br />
|viewerconfig = #C [[ AUTOSTART THUMBSIZE 2 GPS 20 LOOP 226 ]]<br />
}}<br />
==Notes==<br />
<references group="note" /><br />
<br />
==External links==<br />
{{LinkLexicon|lex_b.htm#boojumreflector}}</div>Freywahttp://conwaylife.com/wiki/RLE:P226glidershuttleRLE:P226glidershuttle2019-06-10T12:09:11Z<p>Freywa: RLE to replace an image</p>
<hr />
<div>x = 76, y = 50, rule = B3/S23<br />
15bo$14bobo$15bo3$9b2o$9b2o23b2o$b2o31bo$2bo29bobo$2bobo27b2o$3b2o4b2o<br />
11b2o$9b2o11b2o$17bo$16bob2o23b2o$16bo3bo4bo17bo$20bo4bo15bobo$3bob2o<br />
14bo3bo15b2o$b3ob2o14b2o$o18bo2b2o20b2o$b3ob2o12b2obo21b2o$3bobo24b2o$<br />
3bobo23bo2bo$4bo25b2o$41bo$42b2o$41b2o2$71bo$70bobo$70bobo$30b2o19b2o<br />
16b2ob3o$30b2o19b2o22bo$69b2ob3o$33b2o34b2obo$32bobo$32bo$31b2o2$65b2o<br />
$65b2o4b2o$42b2o27bobo$41bobo29bo$41bo31b2o$40b2o23b2o$65b2o3$60bo$59b<br />
obo$60bo!</div>Freywahttp://conwaylife.com/wiki/MonogramMonogram2019-06-10T05:27:53Z<p>Freywa: Will cost 10 gliders in latest update</p>
<hr />
<div>{{Oscillator<br />
|name = Monogram<br />
|pname = monogram<br />
|c = 18<br />
|bx = 7<br />
|by = 7<br />
|fc = 40.9<br />
|p = 4<br />
|m = 2<br />
|h = 14<br />
|v = 0.88<br />
|sv = 0.88<br />
|discoverer = Dean Hickerson<br />
|discoveryear = 1989<br />
|rulemin = B3/S23<br />
|rulemax = B3678/S023678<br />
|rulespecial = [[Conway's Game of Life|Conway Life]], [[HighLife]]<br />
|isorulemin = B3einy/S2-n3e<br />
|isorulemax = B2ekn34-aeik5-nr678/S01c234-z5-e678<br />
|synthesis = 10<br />
|synthesisRLE = true<br />
|plaintext = true<br />
|rle = true<br />
|animated = true<br />
|apgcode = xp4_hv4a4vh<br />
|pentadecathlonid = 18P4.1<br />
}}<br />
'''Monogram''' (or '''initials'''<ref>{{CiteLexicon|file=lex_i.htm#initials|name=Initials|accessdate=June 13, 2009}}</ref> or '''JHC'''<ref>{{CiteLexicon|file=lex_j.htm#jhc|name=JHC|accessdate=April 30, 2009}}</ref>) is a [[period]] [[:Category:Oscillators with period 4|4]] [[oscillator]] that was found by [[:Category:Patterns found by Dean Hickerson|Dean Hickerson]] in August [[:Category:Patterns found in 1989|1989]]. It produces some weak sparks which can utilized in eg. the stabilization of the [[carnival shuttle]].<br />
<br />
==References==<br />
<references /><br />
<br />
==External links==<br />
{{LinkWeisstein|filename=Monogram.html}}<br />
{{LinkLexicon|lex_m.htm#monogram}}<br />
{{LinkCatagolue|xp4_hv4a4vh}}<br />
{{LinkPentadecathlonObject|18P4.1}}<br />
<br />
{{Symmetry|orthogonal4|osc=flip}}<br />
[[Category:Sparkers]]<br />
[[Category:Sparkers with period 4]]<br />
[[Category:Weak sparkers]]</div>Freywahttp://conwaylife.com/wiki/44P12.344P12.32019-06-10T05:06:09Z<p>Freywa: Shaved off a glider by going a completely different route</p>
<hr />
<div>{{Oscillator<br />
|name = 44P12.3<br />
|pname = 44p12.3<br />
|c = 44<br />
|bx = 14<br />
|by = 14<br />
|p = 12<br />
|m = 12<br />
|h = 38<br />
|v = 0.87<br />
|sv = 0.87<br />
|discoverer = Nicolay Beluchenko<br />
|rulemin = B3/S23<br />
|rulemax = B38/S238<br />
|rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|isorulemin = B3-cky/S2-n3<br />
|isorulemax = B34ciqry5ac6ce8/S234cez5ckqry6ain7e8<br />
|synthesis = 78<br />
|synthesisRLE = true<br />
|rle = true<br />
|plaintext = true<br />
|apgcode = xp12_xg8kmjgz4630fgmmgfgc62zy2c621<br />
|pentadecathlonid = 44P12.3<br />
|animated = yes<br />
|viewerconfig = #C [[ THUMBSIZE 3 GPS 5 ZOOM 24 HEIGHT 500 WIDTH 500 ]]<br />
}}<br />
'''44P12.3''' is an unnamed [[period]] [[:Category:Oscillators with period 12|12]] [[oscillator]], discovered by Nicolay Beluchenko.<ref name="post18959">{{LinkForumThread<br />
|p = 18959<br />
|title = Re: Soup search results<br />
|author = Matthias Merzenich<br />
|format = ref<br />
}}</ref><ref>{{CiteSummersPattern}}</ref><br />
<br />
On January 12, {{year|2019}}, [[Tanner Jacobi]] used it along with [[dueling banjos]], a [[heavyweight emulator]] variant, and [[Pipsquirter 1]] to build a period 24 [[glider gun]] which was then optimized by [[Matthias Merzenich]] the next day to be smaller than the [[period-24 glider gun|previous record holder]].<ref name="post67786" /><ref name="post67805" /><br />
<br />
==References==<br />
<references><br />
<ref name="post67786">{{LinkForumThread<br />
|p = 67786<br />
|title = Re: Oscillator Discussion Thread<br />
|author = Tanner Jacobi<br />
|format = ref<br />
}}</ref><br />
<ref name="post67805">{{LinkForumThread<br />
|p = 67805<br />
|title = Re: Execution of Old Guns by Variable-Speed Firing Squad<br />
|author = Matthias Merzenich<br />
|format = ref<br />
}}</ref><br />
</references><br />
<br />
== External links ==<br />
{{LinkNiemiec|p12.htm#p12-lg|patternname=4 period 12 oscillators 26 bits and larger}}<br />
{{LinkPentadecathlonObject|44P12.3}}<br />
{{LinkCatagolue|xp12_xg8kmjgz4630fgmmgfgc62zy2c621}}<br />
<br />
{{Symmetry|diagonal4}}<br />
[[Category:Sparkers]]<br />
[[Category:Sparkers with period 12]]<br />
[[Category:Strong sparkers]]<br />
[[Category:Non-reflecting duoplet sparkers]]<br />
[[Category:Dot sparkers]]<br />
[[Category:Unnamed periodic objects]]<br />
{{seminatural}}</div>Freywahttp://conwaylife.com/wiki/P43_snark_loopP43 snark loop2019-06-09T16:34:01Z<p>Freywa: It costs 226 gliders</p>
<hr />
<div>{{Oscillator<br />
|name = p43 snark loop<br />
|pname = p43gliderloop<br />
|c = 228<br />
|bx = 65<br />
|by = 65<br />
|p = 43<br />
|m = 43<br />
|h = 66.05<br />
|v = 0.81<br />
|discoverer = Mike Playle<br />
|discoveryear = 2013<br />
|rulemin = B3/S23<br />
|rulemax = B38/S238<br />
|rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|isorulemin = B3/S23<br />
|isorulemax = B34c8/S234c5e6n8<br />
|synthesis = 226<br />
|rle = true<br />
|viewerconfig = #C [[ THUMBSIZE 2 GPS 4 ZOOM 8 HEIGHT 600 WIDTH 600 POPUPHEIGHT 600 POPUPWIDTH 600 ]]<br />
|apgcode = xp43_ylo8bp6o8g0s4gozyfggy31230343zyg346y133zym217wggx2c6ycgzyr1226yd6511zwg4cy7a64yo8acxooxg89fgkczw1plll2y7c871yfgs26y78llljgz651ui21x33x6a2yo4cay7641zy5ggkcydc88gzy51ycc68x11wsg8zyvooy1c4ozyqo4o0o8gy311zyn31470123cjq23<br />
}}<br />
The '''p43 snark loop''' is a [[period]] [[:Category:Oscillators with period 43|43]] [[oscillator]] made from [[Snark]] reflectors. It is the smallest of an infinite family of Snark-based [[adjustable glider loops]] that can have any period from 43 up.<br />
<br />
There are much smaller glider loops containing four gliders, with a total signal path length of 216+8N and therefore adjustable to any period of the form 54+2n. However, this is the smallest loop that can contain eight gliders, which is a requirement for universal adjustability.<br />
<br />
==External links==<br />
{{LinkCatagolue|xp43_ylo8bp6o8g0s4gozyfggy31230343zyg346y133zym217wggx2c6ycgzyr1226yd6511zwg4cy7a64yo8acxooxg89fgkczw1plll2y7c871yfgs26y78llljgz651ui21x33x6a2yo4cay7641zy5ggkcydc88gzy51ycc68x11wsg8zyvooy1c4ozyqo4o0o8gy311zyn31470123cjq23|format=extended|patternname=p43 snark loop}}<br />
<br />
{{Symmetry|90degree}}<br />
{{DISPLAYTITLE:p43 snark loop}}</div>Freywahttp://conwaylife.com/wiki/Pre-pulsar_shuttle_29Pre-pulsar shuttle 292019-06-09T05:50:35Z<p>Freywa: Will cost 31 gliders in latest update</p>
<hr />
<div>{{Oscillator<br />
|name = Pre-pulsar shuttle 29<br />
|pname = prepulsarshuttle29<br />
|f1 = Shuttle<br />
|c = 54<br />
|bx = 28<br />
|by = 28<br />
|p = 29<br />
|m = 29<br />
|h = 41.5<br />
|v = 0.90<br />
|discoverer = David Buckingham<br />
|discoveryear = 1980<br />
|rulemin = B3/S23<br />
|rulemax = B3/S2378<br />
|rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|isorulemin = B3-k/S23-ck<br />
|isorulemax = B35ck6ek7/S234ckyz5kqr6ei78<br />
|synthesis = 31<br />
|plaintext = true<br />
|rle = true<br />
|animated = true<br />
|apgcode = xp29_y8ca23z252y24eexcczg8gy28ssy366xg0s4z01y76e6x6e6w11zzy8252y1252<br />
|pentadecathlonid = 54P29.1<br />
}}<br />
'''Pre-pulsar shuttle 29''' (or '''prime'''{{citation needed}}) is a [[period]] [[:Category:Oscillators with period 29|29]] [[shuttle]] [[oscillator]] discovered by [[David Buckingham]] on August 2, [[:Category:patterns_found_in_1980|1980]],<ref>{{CiteHickersonOscillators|accessdate=June 16, 2009}}</ref> making it the first oscillator of that period to be found. In terms of its [[:Category:patterns_with_54_cells|54]] [[cell]]s it is the smallest known period 29 oscillator.<ref>{{cite web|url=http://www.pentadecathlon.com/objects/class2/class2.php?part=3 |title=Class 2 Objects Catalog |accessdate=June 10, 2009}}</ref> The oscillator works by combining the 15-generation, two-[[tub]] pre-pulsar shuttle mechanism used in [[Eureka]] with a 14-generation pre-pulsar shuttle mechanism. [[hassle|Hassling]] pre-pulsars in this way was the only known way of constructing period 29 oscillators until the discovery of the [[p29 traffic-farm hassler]], and some variations of this shuttle are shown below. In September [[:Category:patterns found in 1994|1994]] [[Bill Gosper]] found that two copies of pre-pulsar shuttle 29 could be used to hassle a [[pentadecathlon]]. Gosper used it to construct the [[p58 toadsucker]].<br />
<br />
A {{gliders|42}} [[synthesis]] is known for a variant of this oscillator, 56P29, which is shown below.<ref>{{CiteCatagolue|title=xp29_wgg0s4w255202552w4s0ggz320f811w4r4x4r4w118f023zzy4252y1252|page=object/xp29_wgg0s4w255202552w4s0ggz320f811w4r4x4r4w118f023zzy4252y1252/b3s23|accessdate=June 6, 2019}}</ref><br />
<br />
==Image gallery==<br />
{|<br />
|-<br />
|[[Image:Prepulsar29_gen4.png|framed|left|[[Generation]] 4 reveals two pre-pulsars (black) being hassled by a 15-generation mechanism (green) and a 14-generation mechanism (red).]]<br />
|[[Image:Prepulsar29_v2.png|framed|left|A slightly larger version of this oscillator, 56P29, with just one pre-pulsar (black) and an alternate 14-generation stabilization (red)<br />{{JavaRLE|prepulsarshuttle29v2|brief}}]]<br />
|[[Image:Prepulsar29_v3.png|framed|left|A much larger version of this oscillator with four pre-pulsars<br />{{JavaRLE|prepulsarshuttle29v3|brief}}]]<br />
|}<br />
<br />
==See also==<br />
* [[Pre-pulsar shuttle oscillators]]<br />
<br />
==References==<br />
<references/><br />
<br />
== External links ==<br />
{{LinkCatagolue|xp29_y8ca23z252y24eexcczg8gy28ssy366xg0s4z01y76e6x6e6w11zzy8252y1252}}<br />
{{LinkCatagolue|xp29_wgg0s4w255202552w4s0ggz320f811w4r4x4r4w118f023zzy4252y1252|patternname=56P29}}<br />
{{LinkPentadecathlonObject|54P29.1}}<br />
<br />
{{Symmetry|diagonal2}}<br />
[[Category:Sparkers]]<br />
[[Category:Sparkers with period 29]]<br />
[[Category:Strong sparkers]]<br />
[[Category:Pre-pulsar shuttle oscillators]]<br />
__NOTOC__</div>Freywahttp://conwaylife.com/wiki/P26_glider_shuttleP26 glider shuttle2019-06-09T03:58:27Z<p>Freywa: Will cost 84 gliders in latest update</p>
<hr />
<div>{{Oscillator<br />
|name = p26 glider shuttle<br />
|pname = p26glidershuttle<br />
|c = 148<br />
|bx = 53<br />
|by = 53<br />
|p = 26<br />
|m = 26<br />
|h = 102.8<br />
|v = 0.87<br />
|sv = 0.87<br />
|discoverer = Matthias Merzenich<br />
|discoveryear = 2012<br />
|rulemin = B3/S23<br />
|rulemax = B38/S238<br />
|rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|isorulemin = B3/S23<br />
|isorulemax = B34cz8/S234c5er8<br />
|synthesis = 84<br />
|plaintext = true<br />
|rle = true<br />
|apgcode = xp26_ymc4go4q9jzypgg01zycgy71687xo8gzggwgy465110ggy78gox32z124bq1xciaa4y0211y71zw32ywgg8gy0oi6zyfocgy64cay012221x4a61aczya2egoy0gy9c453zyh78b4zyf8ko0o80gzyf6421w11<br />
}}<br />
[[Category:Sparkers]]<br />
[[Category:Sparkers with period 26]]<br />
[[Category:Strong sparkers]]<br />
<br />
'''p26 glider shuttle''' is a [[:Category:Oscillators with period 26|period-26]] [[oscillator]], based on a dependent period-26 [[reflector]], discovered by [[:Category:Patterns found by Matthias Merzenich|Matthias Merzenich]]<ref>{{cite web|url=http://conwaylife.com/forums/viewtopic.php?p=7842#p7842|title=Re: Just the place for a Snark!|author=Matthias Merzenich|date=April 27, 2013|accessdate=August 12, 2014}}</ref> on February 19, [[:Category:Patterns found in 2012|2012]]. <br />
<br />
It was the smallest known period-26 oscillator in terms of minimum [[population]] until the discovery of [[87P26]] on August 7, [[:Category:Patterns found in 2015|2015]].<br />
<br />
== References ==<br />
<references/><br />
<br />
== External links ==<br />
{{LinkCatagolue|xp26_ymc4go4q9jzypgg01zycgy71687xo8gzggwgy465110ggy78gox32z124bq1xciaa4y0211y71zw32ywgg8gy0oi6zyfocgy64cay012221x4a61aczya2egoy0gy9c453zyh78b4zyf8ko0o80gzyf6421w11|patternname=p26 glider shuttle}}<br />
<br />
{{Symmetry|90degree}}<br />
{{DISPLAYTITLE:p26 glider shuttle}}</div>Freywahttp://conwaylife.com/wiki/Pre-pulsar_spaceshipPre-pulsar spaceship2019-06-08T10:43:05Z<p>Freywa: Actual retail price, 1161 gliders</p>
<hr />
<div>{{Spaceship<br />
|name = Pre-pulsar spaceship<br />
|pname = prepulsarspaceship<br />
|c = 128<br />
|bx = 73<br />
|by = 14<br />
|dir = Orthogonal<br />
|p = 30<br />
|m = 30<br />
|s = c/5<br />
|z = 6c/30<br />
|h = 131.5<br />
|discoverer = David Bell<br />
|discoveryear = 1998<br />
|rulemin = B3/S23<br />
|rulemax = B3/S238<br />
|rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|isorulemin = B3/S23-c<br />
|isorulemax = B3/S234c5jn6n7c8<br />
|synthesis = 1161<br />
|plaintext = true<br />
|rle = true<br />
|animated = true<br />
|apgcode = xq30_yq232x232zug1hmgc865da808ad568cgmh1guybug1hmgc865da808ad568cgmh1guz124w6yb6w421yb124w6yb6w421<br />
|pentadecathlonid = 128P30H6V0.1<br />
}}<br />
'''Pre-pulsar spaceship''' (or '''PPS''' for short) is any of three different [[period]] [[:Category:Spaceships with period 30|30]] [[c/5 orthogonal|c/5]] orthogonal [[spaceship]]s in which a [[pre-pulsar]] is pushed by a pair of [[spider]]s. The back [[spark]]s of these spaceships can be used to perturb [[glider]]s in many different ways, allowing the easy construction of c/5 [[puffer]]s.<br />
<br />
The first pre-pulsar spaceship, the '''symmetric pre-pulsar spaceship''' (or '''SPPS''' for short, shown to the right) was found by [[:Category:Patterns found by David Bell|David Bell]] in May [[:Category:Patterns found in 1998|1998]] and was based on the [[P15 pre-pulsar spaceship]] found by [[:Category:Patterns found by Noam Elkies|Noam Elkies]] in December [[:Category:Patterns found in 1997|1997]].<br />
<br />
The '''asymmetric pre-pulsar spaceship''' (or '''APPS''' for short, shown below) was found by [[:Category:Patterns found by Alan Hensel|Alan Hensel]], also in May 1998, based on a skewed version of the pre-pulsar.<br />
<br />
The third period 30 pre-pulsar spaceship, shown below, is similar to the symmetric pre-pulsar spaceship but contains an extra [[T-tetromino]] between the spiders and is [[Types_of_spaceships#Glide_symmetric_spaceship|glide symmetric]].<br />
<br />
[[Martin Grant]]'s 601-glider [[spider]] synthesis resulted in a 1212-glider [[glider synthesis|synthesis]] for the symmetric pre-pulsar spaceship on March 8, {{year|2019}}.<ref name="post72731" /><br />
<br />
In June 1997, David Bell found reactions to convert between the symmetric and glide-symmetric forms of the p30 pre-pulsar spaceship.<br />
<br />
==Image gallery==<br />
{|<br />
|-<br />
|[[Image:apps.png|framed|left|The asymmetric pre-pulsar spaceship.<br />{{JavaRLE|apps}}]]<br />
|[[Image:GlidesymmetricPPS.png|framed|left|The glide symmetric pre-pulsar spaceship.<br />{{JavaRLE|glidesymmetricpps}}]]<br />
|}<br />
<br />
==References==<br />
<references><br />
<ref name="post72731">{{LinkForumThread<br />
|format = ref<br />
|title = Re: Small Spaceship Syntheses<br />
|p = 72731<br />
|author = Adam P. Goucher<br />
|date = March 8, 2019<br />
}}</ref><br />
</references><br />
<br />
==External links==<br />
{{LinkLexicon|lex_p.htm#pps}}<br />
{{LinkCatagolue|xq30_yq232x232zug1hmgc865da808ad568cgmh1guybug1hmgc865da808ad568cgmh1guz124w6yb6w421yb124w6yb6w421|patternname=Symmetric pre-pulsar spaceship}}<br />
{{LinkCatagolue|xq30_g84wcybcw48gybsa188bggwggg0gggwggb881aszf1ghd162ckma202amkc261dhg1fyb304430103552x255301034403zyq8o8x262|patternname=Asymmetric pre-pulsar spaceship|format=extended}}<br />
{{LinkCatagolue|xq30_yq232x232zug1hmgc865da808ad568cgmh1gux4c4y5ug1hmgc865da808ad568cgmh1guz124w6yb6w421yb124w6yb6w421|patternname=Glide symmetric pre-pulsar spaceship}}<br />
{{LinkPentadecathlonObject|128P30H6V0.1}}<br />
<br />
{{Symmetry|orthogonal2}}<br />
[[Category:Patterns found by Alan Hensel]]<br />
[[Category:Non-monotonic_spaceships]]</div>Freywahttp://conwaylife.com/wiki/Achim%27s_other_p16Achim's other p162019-06-08T06:00:03Z<p>Freywa: YES!</p>
<hr />
<div>{{Oscillator<br />
|name = Achim's other p16<br />
|pname = achimsotherp16<br />
|c = 96<br />
|bx = 35<br />
|by = 35<br />
|p = 16<br />
|m = 16<br />
|h = 158<br />
|v = 0.97<br />
|sv = 0.86<br />
|discoverer = Achim Flammenkamp<br />
|discoveryear = 1994<br />
|rulemin = B3/S23<br />
|rulemax = B37/S2378<br />
|rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|isorulemin = B3-ey/S23-c<br />
|isorulemax = B35cin6ce7/S234ct5aen6acn78<br />
|synthesis = 64<br />
|plaintext = true<br />
|rle = true<br />
|apgcode = xp16_y57ey9e7zgggy58ogy1go8y5gggz0111y0cogx11x11xgocy0111zy6hy9hz0gggy0631xggxggx136y0gggz111y5231y1132y5111zy5sey9es<br />
|pentadecathlonid = 96P16.1<br />
|animated = yes<br />
|viewerconfig = #C [[ THUMBSIZE 3 GPS 5 ZOOM 12 HEIGHT 500 WIDTH 500 ]]<br />
}}<br />
'''Achim's other p16''' (also called '''96P16.1''') is a [[period]] [[:Category:Oscillators with period 16|16]] [[oscillator]] that was found by [[Achim Flammenkamp]] on August 7, [[:Category:Patterns found in 1994|1994]].<ref>{{CiteHickersonOscillators}}</ref><ref>{{CiteSummersPattern|name=jslife}}</ref> It comprises eight copies of [[lumps of muck]] repeatedly reacting with each other and further [[hassle]]d by eight [[toad]]s.<br />
<br />
==See also==<br />
*[[Achim's p4]]<br />
*[[Achim's p8]]<br />
*[[Achim's p11]]<br />
*[[Achim's p16]]<br />
*[[Achim's p144]]<br />
<br />
==References==<br />
<references/><br />
<br />
==External links==<br />
{{LinkPentadecathlonObject|96P16.1}}<br />
{{LinkCatagolue|xp16_y57ey9e7zgggy58ogy1go8y5gggz0111y0cogx11x11xgocy0111zy6hy9hz0gggy0631xggxggx136y0gggz111y5231y1132y5111zy5sey9es}}<br />
<br />
{{Symmetry|full}}<br />
[[Category:Sparkers]]<br />
[[Category:Sparkers with period 16]]<br />
[[Category:Strong sparkers]]<br />
[[Category:Domino sparkers]]<br />
{{seminatural}}</div>Freywahttp://conwaylife.com/wiki/TubberTubber2019-06-08T03:15:12Z<p>Freywa: Can be cut to 31</p>
<hr />
<div>{{Oscillator<br />
|name = Tubber<br />
|pname = tubber<br />
|c = 48<br />
|bx = 13<br />
|by = 13<br />
|p = 3<br />
|m = 3<br />
|h = 5.3<br />
|v = 0.14<br />
|discoverer = Robert Wainwright<br />
|rulemin = B3/S23<br />
|rulemax = B378/S01235678<br />
|rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|isorulemin = B3ij/S2-in3jknqr<br />
|isorulemax = B2ik34cqt5-j6-n78/S01234-ky5678<br />
|synthesis = 31<br />
|plaintext = true<br />
|rle = true<br />
|animated = true<br />
|apgcode = xp3_gg0gbahm44oz25s1688gjc1dazx113426<br />
|pentadecathlonid = 48P3.11<br />
}}<br />
'''Tubber''' is a [[period]] [[:Category:Oscillators with period 3|3]] [[oscillator]] that was found by [[:Category:Patterns found by Robert Wainwright|Robert Wainwright]] no later than June [[:Category:Patterns found in 1972|1972]]. It is a [[billiard table configuration]] requiring particularly heavy stabilization: the smallest [[casing]] is twice the size of the [[bushing]].<br />
<br />
==External links==<br />
{{LinkWeisstein|Tubber.html}}<br />
{{LinkLexicon|lex_t.htm#tubber}}<br />
{{LinkCatagolue|xp3_gg0gbahm44oz25s1688gjc1dazx113426}}<br />
{{LinkPentadecathlonObject|48P3.11}}<br />
<br />
{{Symmetry|diagonal4}}<br />
{{seminatural}}</div>Freywahttp://conwaylife.com/wiki/Hive_test_tube_babyHive test tube baby2019-06-08T02:59:57Z<p>Freywa: Easily seen to cost 10 gliders</p>
<hr />
<div>{{Oscillator<br />
|name = Hive test tube baby<br />
|pname = hivetesttubebaby<br />
|family = Test tube baby<br />
|c = 20<br />
|bx = 12<br />
|by = 6<br />
|p = 2<br />
|m = 2<br />
|h = 2<br />
|v = 0.11<br />
|rotor = Orthogonal on-off<br />
|rulemin = B3/S23<br />
|rulemax = B378/S01235678<br />
|rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|isorulemin = B3i/S2cik3cenq<br />
|isorulemax = B2-ae34-ajnw5-y6-k78/S01234-t5678<br />
|synthesis = 10<br />
|plaintext = true<br />
|rle = true<br />
|viewerconfig = #C [[ GPS 2 THUMBSIZE 2 ]]<br />
|apgcode = xp2_2552sws2552zy111<br />
|pentadecathlonid = 20P2.2273<br />
}}<br />
'''Hive test tube baby''' is a [[period]] [[:Category:Oscillators with period 2|2]] [[oscillator]]. It is similar to [[test tube baby]], but [[beehive]]s are used to stabilizes the corners.<br />
<br />
==See also==<br />
*[[List of common oscillators]]<br />
*[[Odd test tube baby]]<br />
<br />
==External links==<br />
{{LinkCatagolue|xp2_2552sws2552zy111}}<br />
{{LinkPentadecathlonObject|20P2.2273}}<br />
<br />
{{Symmetry|orthogonal2}}<br />
{{natural}}<br />
__NOTOC__</div>Freywahttp://conwaylife.com/wiki/Claw_test_tube_babyClaw test tube baby2019-06-08T02:48:09Z<p>Freywa: Easily seen to be 10 gliders</p>
<hr />
<div>{{Oscillator<br />
|name = Claw test tube baby<br />
|pname = clawtesttubebaby<br />
|family = Test tube baby<br />
|c = 20<br />
|bx = 12<br />
|by = 6<br />
|p = 2<br />
|m = 2<br />
|h = 2<br />
|v = 0.11<br />
|rotor = Orthogonal on-off<br />
|rulemin = B3/S23<br />
|rulemax = B378/S01235678<br />
|rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|isorulemin = B3i/S2-n3enq<br />
|isorulemax = B2cin34-ajknw5-q6-k78/S01234-t5678<br />
|synthesis = 10<br />
|plaintext = true<br />
|rle = true<br />
|viewerconfig = #C [[ GPS 2 THUMBSIZE 2 ]]<br />
|apgcode = xp2_3542sws2453zy111<br />
|pentadecathlonid = 20P2.825<br />
}}<br />
'''Claw test tube baby''' is a [[period]] [[:Category:Oscillators with period 2|2]] [[oscillator]]. It is similar to [[test tube baby]], but [[claw]]s (as in [[claw with tail]]) are used to stabilize the corners.<br />
<br />
==See also==<br />
*[[List of common oscillators]]<br />
*[[Odd test tube baby]]<br />
<br />
==External links==<br />
{{LinkCatagolue|xp2_3542sws2453zy111}}<br />
{{LinkPentadecathlonObject|20P2.825}}<br />
<br />
{{Symmetry|orthogonal2}}<br />
{{seminatural}}<br />
__NOTOC__</div>Freywahttp://conwaylife.com/wiki/31.431.42019-06-07T10:47:31Z<p>Freywa: I missed that at target practice</p>
<hr />
<div>{{Stilllife<br />
|name = 31.4<br />
|pname = 31.4<br />
|type = Still life<br />
|c = 31<br />
|bx = 13<br />
|by = 8<br />
|discoverer = Mike Playle<br />
|discoveryear = 2013<br />
|rulemin = B/S23<br />
|rulemax = B378/S012345678<br />
|rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|isorulemin = B/S2-n3knry<br />
|isorulemax = B2in34cejkryz5cein6-ik78/S012345678<br />
|synthesis = 14<br />
|plaintext = true<br />
|rle = true<br />
|viewerconfig = #C [[ AUTOSTART THUMBSIZE 2 LOOP 2 ZOOM 24 GPS 60 ]]<br />
|apgcode = xs31_0g89fgkcz8llljgzx641<br />
}}<br />
{{stub}}<br />
'''31.4''' is the catalyst used in the [[Snark]] reflector, nicknamed the "heart" of the Snark. It is also used in the [[CP semi-Snark]].<br />
<br />
The "4" of the 31.4 comes from the fact that it is the fourth 31-bit object in [[Mark Niemiec]]'s [http://conwaylife.com/ref/mniemiec/bits-lg.htm#p1-lg still life collection].<br />
<br />
==See also==<br />
*[[Snark]]<br />
<br />
==External links==<br />
{{LinkCatagolue|xs31_0g89fgkcz8llljgzx641}}</div>Freywahttp://conwaylife.com/wiki/Bent_keysBent keys2019-06-07T08:35:47Z<p>Freywa: Will cost 8 gliders in latest update</p>
<hr />
<div>{{Oscillator<br />
|name = Bent keys<br />
|pname = bentkeys<br />
|c = 16<br />
|bx = 12<br />
|by = 5<br />
|fc = 39.2<br />
|p = 3<br />
|m = 3<br />
|h = 14.7<br />
|v = 0.73<br />
|discoverer = Dean Hickerson<br />
|discoveryear = 1989<br />
|rulemin = B3/S23<br />
|rulemax = B3678/S23678<br />
|rulespecial = [[Conway's Game of Life|Conway Life]], [[HighLife]]<br />
|isorulemin = B3-kqy/S2-i3cjnqr<br />
|isorulemax = B2n34-aejn5-c678/S234-arw5-jq678<br />
|synthesis = 8<br />
|synthesisRLE = true<br />
|plaintext = true<br />
|rle = true<br />
|animated = true<br />
|apgcode = xp3_2524sws4252<br />
|pentadecathlonid = 18P3.29<br />
}}<br />
'''Bent keys''' is a [[period]] [[:Category:Oscillators with period 3|3]] [[oscillator]] found by [[:Category:Patterns found by Dean Hickerson|Dean Hickerson]] in August [[:Category:Patterns found in 1989|1989]]. In September [[:Category:patterns found in 2004|2004]] [[Jason Summers]] found a [[:Category:patterns that can be constructed with 10 gliders|10]]-[[glider]] [[glider synthesis|synthesis]] of this oscillator.<ref>{{CiteSummersPattern|name=jslife}}</ref> It can be extended infinitely, like the [[odd keys]].<br />
<br />
==See also==<br />
*[[Odd keys]]<br />
*[[Short keys]]<br />
<br />
==References==<br />
<references/><br />
<br />
==External links==<br />
{{LinkLexicon|lex_b.htm#bentkeys}}<br />
{{LinkCatagolue|xp3_2524sws4252}}<br />
{{LinkPentadecathlonObject|18P3.29}}<br />
<br />
[[Category:Sparkers]]<br />
[[Category:Dot sparkers]]<br />
[[Category:Moderate sparkers]]<br />
[[Category:Sparkers with period 3]]<br />
<br />
{{Symmetry|orthogonal2}}</div>Freywahttp://conwaylife.com/wiki/HooksHooks2019-05-21T03:38:53Z<p>Freywa: viewerconfig</p>
<hr />
<div>{{Oscillator<br />
|name = Hooks<br />
|pname = hooks<br />
|c = 21<br />
|bx = 11<br />
|by = 10<br />
|p = 5<br />
|m = 5<br />
|h = 4.4<br />
|v = 0.39<br />
|rulemin = B3/S23<br />
|rulemax = B378/S23678<br />
|rulespecial = [[Conway's Game of Life|Conway Life]]<br />
|isorulemin = B3-knr/S2-in3-ck<br />
|isorulemax = B2i34ceqtwz5ceik6-k78/S234-ajnw5-nq678<br />
|synthesis = 15<br />
|synthesisRLE = true<br />
|plaintext = true<br />
|rle = true<br />
|animated = true<br />
|viewerconfig = #C [[ GPS 2 THUMBSIZE 2 ]]<br />
|apgcode = xp5_32aczxogf2c84c<br />
|pentadecathlonid = 21P5.2<br />
}}<br />
:''Not to be confused with [[hook]] or [[bookend]].''<br />
'''Hooks''' is a [[period]] [[:Category:Oscillators with period 5|5]] [[oscillator]] that is shown as the second pattern in the third row of Jason Summers' main period 5 collection. It is also shown as the first pattern in the fourth row of Jason Summers' period 5 billiard collection.<br />
<br />
==See also==<br />
*[[Period_5_oscillators#Smallest|Smallest period five oscillators]]<br />
<br />
== External links ==<br />
{{LinkCatagolue|xp5_32aczxogf2c84c}}<br />
{{LinkPentadecathlonObject|21P5.2}}</div>Freywahttp://conwaylife.com/wiki/RLE:HooksRLE:Hooks2019-05-21T03:38:25Z<p>Freywa: RLE</p>
<hr />
<div>x = 11, y = 10, rule = B3/S23<br />
6b2o$ob2obobo$2obobo$4b2o$5bo2$7b2o$7bo$8b3o$10bo!</div>Freywa