ConwayLife.com

Posted: **February 4th, 2025, 3:28 pm**

WhiteHawk wrote: February 4th, 2025, 12:41 pm Some new snippets may also be in order, e.g. Water Strider, p15 glider gun, Pedestrian Life, Day and Night, Lx65 Duplicator, Cribbage, and 204p41, among others.

There's already a Pedestrian Life snippet, thanks to hotdogPi's additions from a couple of years ago. But yeah, there are lots and lots of candidates for advertisable articles. If anyone wants to build a bunch more snippets and then post a list here, I can update the necessary pages to get all snippets into the rotation.

They might still not show up during any given rotation due to potential weird caching issues -- but some snippet will show up on every main-page load, and eventually a sufficiently assiduous reader would see them all.

Posted: **February 4th, 2025, 7:20 pm**

Can this be added to Tutorials/Catalyses?

hotcrystal0 wrote: February 3rd, 2025, 8:58 am Edit: grin reagent can also (sometimes) work when ship+eater recovers too quickly:
Code: Select all
x = 24, y = 13, rule = B3/S23
6bo11bo$6bobo9bobo$7bo2bo8bo2bo$2o8b2o10b2o$o2bob2o4bo5b2o4bo$2b2ob2o
9bobo$16b2o$2b5o$bo5bo11b2o$b2o2b2o12bo$6bobob2o8b3o$5bo2b2obo10bo$5b
2o!
This should probably be added to Tutorials/Catalyses.

Posted: **February 4th, 2025, 10:51 pm**

Leaf Bug and Water Strider are not showing up on Category:Spaceships with speed 31c/240

EDIT by dvgrn: They're showing up fine on that page for me. Not sure what happened here -- there don't seem to be recent edits that would have fixed this reported problem, but maybe I'm missing something.

Posted: **February 5th, 2025, 9:21 am**

WhiteHawk wrote: February 4th, 2025, 10:51 pm Leaf Bug and Water Strider are not showing up on Category:Spaceships with speed 31c/240

In general, whenever you expect to see some page in a category (because it was included) but don't see that page listed in the category, try clicking the link "refresh" on the right. In this case, the link "refresh" leads to this:

https://conwaylife.com/w/index.php?titl ... tion=purge

It asks "Purge the cache of this page?" Clicking OK will return back to the category page, and any missing pages should now be visible.

In the event there's no "refresh" link on the right, you can do the following:

Switch to the tab "View source" (instead of "Read"). In this case

Code: Select all

https://conwaylife.com/w/index.php?title=Category:Spaceships_with_speed_31c/240&action=edit

Go to the address bar of your browser, and at the end of the URL manually replace "action=edit" by "action=purge":
Code: Select all
```
https://conwaylife.com/w/index.php?title=Category:Spaceships_with_speed_31c/240&action=purge
```
Now you have the same link that would be accessible via "refresh".

More information: https://www.mediawiki.org/wiki/Manual:Purge

Posted: **February 10th, 2025, 7:54 am**

Wouldn’t this snippet also deserve an update:

https://conwaylife.com/wiki/Glider_synt ... _syntheses

Several of the small spaceships mentioned there now have a syntheses.

EDIT by dvgrn: That section isn't exactly the glider-synthesis snippet, but it is where the out-of-date list was. I think I've removed what has been synthesized so far, but at the rate we're going there might be another update needed soon.

Posted: **February 10th, 2025, 8:01 pm**

that p80 gliderless HWSS gun might deserve a page

Posted: **February 11th, 2025, 6:36 am**

C28 wrote: February 10th, 2025, 8:01 pm that p80 gliderless HWSS gun might deserve a page

Not an affirmative or rejection, but there is also no p57 glider gun page on the wiki, which is the only period below 61 (excluding those using filtered streams) to not have it's own page or mention on the related oscillator's page on the wiki.

Posted: **February 11th, 2025, 6:50 am**

Gliderless guns are interesting, I think several of them were discovered recently, they might deserve more than a page (a POTY2024 nomination?)

...Then there are other discoveries which may deserve a POTY nomination but weren't nominated [yet], and there are other notable topics without wiki articles [yet].

C28 wrote: February 10th, 2025, 8:01 pm that p80 gliderless HWSS gun might deserve a page

WhiteHawk wrote: February 11th, 2025, 6:36 am Not an affirmative or rejection, but there is also no p57 glider gun page on the wiki, which is the only period below 61 (excluding those using filtered streams) to not have it's own page or mention on the related oscillator's page on the wiki.

Posted: **March 5th, 2025, 12:03 pm**

Would it make sense to add ikpx2 width as a sixth size metric on the Spaceship Search Status Page? Ikpx2 is currently one of the best programs for finding asymmetric spaceships, but it's somewhat difficult to figure out what has been searched and how much work is needed to reach unexplored search spaces.

Also, it would be useful to include progress files of the largest completed searches to avoid repeated work. RLS, ikpx2, and several other programs support resuming partial searches from files.

Posted: **March 15th, 2025, 10:56 pm**

Here is an addition to the "reanimation" LifeWiki article.

(I don't know if it is necessary to show the backward glider conversion convoys here, but I think including them makes
the examples more informative. Cut them out if you want.)

----------------------------------------------------------

Reanimation reactions have also been found for diagonal c/4 technology which can convert several different still lifes into sideways gliders.

The most useful of these reactions can reanimate a single loaf or ship (which can be created from a single backward glider).

These demonstrate the relevant reactions [1] [2].

Code: Select all

#C A backward glider is converted into a loaf, which is then flipped,
#C and then reanimated.
x = 138, y = 143
30bo$29boo$29bobo$4bo$5bo26boo$3b3o26boobb3o$36boobo$34bo4bo$33b3o4bo$
33bo5bo$20boo12bobobboo$19boo$21bo9b3o$23boo6booboo$23boobboobbob3o$
26boobobboo$27bo4boo$24boo3bo$24boo$24bo$25booboo$27bobo16$28bo$27boo$
27bobo$20b3o9boo$20bo9bob3o$21bo6bo5b4o$23boobboo4boo$24bo$28bo3boo5bo
$24boobobbob3ob3o$23bobobo11bo$3o20bobobo3bo5b3o$o21bo4boboboo4b3o$3bo
18boobboobobboo$obbo11bo6boo5booboo7bo$bobbo9boo11bobbo3bo3boo$bbo11bo
bo10bobboob3ob3o36boo$4bobo11bo5bobo3boo4b3o36boo$6boo9bo3b3o4bobbo5b
oo38bo$7bo9bo3boo5bo6boo42boo$6boo15boobobobbo5bo40bo$5b3o7bo4boobbo5b
3o3boo$oobooboo6b4obo8bobobobo3bo38bobbo25boo$o3boboo4boobobo5boo4bobo
4bo37boobo28bobo$ob3obbo4boobo6b4o4boo5bo35boo4bo26bo$5boo7bob4obob3o
7boo40bobobbo6bo21bo$4b3o10b3o60bo5boo18bobb3o$14b3obooboo9boobo4bo36b
obbo5bobo16boobo$15boo14bo3bo3boo37bobo25boob3o$3b3o20bobooboobboobbob
o36bobo8boo$3b3o19boobooboobb4o40boo7b4o13bo$25bobo7bo43bo5bobo16boboo
bo$bboo29b3o47b3obbo12boboobobo$bbo28b5o47bo3boo8boob3oboboo$31boobbo
47bobo10boo7boo$31boobboboo45boo4boo6boboo3boo$27boobbobob3obo23boo19b
o6boo$26boobb4o4bo24bobo25boo5bo$28bo4b3o3bo16boo5bo29bobbobbo$36boobo
bo14bobo3boobbo26b4obbo$33booboobobo14bo11bo27bo6boo$33b4o22bo3boo3b3o
22boo7boo3bo$36bo22boo4boo4bo23bo8boboo$32boobboo27b7o18bo15b3o$29boo
4bobbo27b4o19b5o12bo$29bobbooboo36bo15bobboo14b3o$29bobobb3o35b4o25boo
bo4boo23bo$34bobo39bo14boobbo5boboo3bobo22boo$34boo35b6o24boboo3b3o22b
obo$29boobb3o29b3o3boboo18bobo6bo5b3o$29bobobo31bo5bobo28boo4bobo25boo
$29bo3boo31bobbooboo21b3o4boobboo28boo$30boobobo32bo14b3o17bobo$30boob
o37bo3bo7bo13bobo3boo3bo25boo$30bobbobo33boo4bobo8bo16b4o26bobbo$30boo
43bo7bo4bo10bobo30boobo$30boo4bo40b3o4b3o14b4o4b3o16b3o$31boboobo42bob
oo5bobo10b4o4bo18bo$29boobbobboo43bo8bo11boo8bo11boo3bo$28b5o3bobo34b
oo3b3o10bo17bobbo10boo5boboo$28bo4bobbobbo33bobobboo12bo17bobbo11bo5b
3o$32bobbobbo34bo4bo13bobo16bo15bob4o$39bo36bobo34bobobboo6bobboo$34b
oo3boo31boo13bo6boo19boobobbo3boo$34booboboo31boo12b5o4bobbo22bobob3o$
29boo3bobbobo33boo5boo4bo6boo26bobo$28boo6boboo31bo8bobo11bo21bobo$30b
obboob4o31b4o5bo5boboo6bobo$33boo3boo23bobb3obo4bo5boo4bo4bobo$33bobo
26boobbob4o3bo5bobbo6b3o$34boo26bobobobobbo9bo6booboo$33boo31b3obboo
10bobobobbo$65boobo$66boboo15bo4bo$35b4o47b4o$34bo5bo53boo$33bo6bo52b
oo3bo$32boobo3boo54boboo$31bobbobbo10boo47b3o$34boboobo8bobo46bo$31bob
o3boobo7bobo48b3o$33b3o3boobo3bo45boobo4boo$37boobbo3b4obo41boboo3bobo
$33bo4bo3bobo5bo35boo4boboo3b3o$34bobboo3bo3b3o36boo6bo5b3o$86bobo4boo
4bobo$40bobo5boo36b3o4boobboo$39bo8boobo34boo6bobo$39boo6bobbo37bobo3b
oo3bo4boobo$45boob6o40b4o6bo3bo$36boobboo3booboo3bo36bobo11bo4bo$36bo
bb3obbo47b4o10boo$36bobo4b3o46b4o12bobo$43boo48boo$47bo55bo6boo$46bobo
53b5o4bobbo$46bobo47boo4bo6boo$96bobo11bo$96bo5boboo6bobo$97boo4bo4bob
o$97bobbo6b3o$97bo6booboo$99bobobobbo$$101bo4bo$102b4o!

Code: Select all

#C A backward glider is converted into a ship which is then reanimated.
x = 160, y = 172
8bo$9bo$7b3o10$8bo$7boo$bo5bobo$oo$obo3boobobo$4bo7boo$3bo4bo5boo$3bo
bbobb6o$51b3o$51bobb3o$16b3o33bobo$16bobboo36bo$15booboo35bo$10boo45bo
bo$9boo4bobo32boobo6bo$11bobboboo31boo3bobbobbo$13boo13boo13b3o4bobbo
bbo3bo$13boo4bo7boo14bo6bobbobbo3bo$14bo4b3o6bobbo14bo3bo6bobo9boo$20b
oo6boobo11bobbo8boo11boo$22boobobboo3bo10bobbo6b3o5boo5bo$23bobo19bo5b
o3bo5boo5boo$23bobbo4bobobo11boboboobo8bo4bobobboo$18bo3b3o10bo13boo
14boo3boob4o$17boo16bobo15bo11boo10bo$17bobobo55bo$22boo13bobo10bobbo
17bo$17bobo53boo$16boobo19b3o$17bo22b3o$16bo20b6o$15b3o$11bobbo3boo20b
o$6b3ob3obb5o20bo$6bo5bobbobo22bo$7bo3bo4bo73boo$9boobobbo18b3o3boo47b
oo$10bobo21bo56bo$10bobo22bobboo53boo$38booboo49bo$33bo4bo$32b4oboo52b
obbo$32bo57boo$33boo3bo50bo$32b6o28boo17boobbobo$23boo6boo33bobo16bobo
bbo$23bobo3boobbo32bo14bo3bobo$23bo5b3o35boo11boo4boo$26bo40bobbo9bobo
3boo$26boo17boo20bo17b3o$44boo3bo19bobob3o7bo3bo$46boboo27bo4boobbo$
48b3o20bo9bo$48bo23b4oboob4o$50b3o29boo$43boobo4boo$43boboo3bobo$37boo
4boboo3b3o$36boo6bo5b3o$37bobo4boo4bobo$37b3o4boobboo$37boo6bobo$39bob
o3boo3bo$45b4o$41bobo$43b4o$43b4o$44boo23$85boo$85bobo$78boo5bo$78bobo
3boobbo$78bo11bo$81bo3boo3b3o$81boo4boo4bo$87b7o$88b4o$95bo$94b4o58bo$
98bo56boo$93b6o56bobo$87b3o3boboo$87bo5bobo62boo$88bobbooboo62boo$90bo
14b3o$93bo3bo7bo50boo$91boo4bobo8bo46bobbo$97bo7bo4bo43boobo$99b3o4b3o
22b3o16b3o$101boboo5bobo18bo18bo$103bo8bo21bo11boo3bo$95boo3b3o10bo17b
obbo10boo5boboo$95bobobboo12bo17bobbo11bo5b3o$95bo4bo13bobo16bo15bob4o
$98bobo34bobobboo6bobboo$94boo13bo6boo19boobobbo3boo$94boo12b5o4bobbo
22bobob3o$95boo5boo4bo6boo26bobo$93bo8bobo11bo21bobo$93b4o5bo5boboo6bo
bo$85bobb3obo4bo5boo4bo4bobo$84boobbob4o3bo5bobbo6b3o$84bobobobobbo9bo
6booboo$88b3obboo10bobobobbo$87boobo$88boboo15bo4bo$108b4o$116boo$115b
oo3bo$117boboo$119b3o$119bo$121b3o$114boobo4boo$114boboo3bobo$108boo4b
oboo3b3o$107boo6bo5b3o$108bobo4boo4bobo$108b3o4boobboo$108boo6bobo$
110bobo3boo3bo4boobo$116b4o6bo3bo$112bobo11bo4bo$114b4o10boo$114b4o12b
obo$115boo$125bo6boo$124b5o4bobbo$118boo4bo6boo$118bobo11bo$118bo5bob
oo6bobo$119boo4bo4bobo$119bobbo6b3o$119bo6booboo$121bobobobbo$$123bo4b
o$124b4o!

[1] viewtopic.php?f=2&t=2031&hilit=animate& ... 25#p180102
[2] viewtopic.php?f=2&t=2031&p=180847&hilit=animate#p180847

----------------------------------------------------------

Also, perhaps "animation" can be added as a synonym to "reanimation".

BCNU,
-dbell

Posted: **March 16th, 2025, 3:38 pm**

I think there should be a category on the wiki for unnamed hassling regions, where hasslers of unnamed regions can go with a little descriptor of each somewhere.

EDIT: or maybe just an option for uncommon hassled objects, named or not, with room for hassled objects like I-heptominos or Herschels.

Posted: **March 22nd, 2025, 4:05 pm**

Doublepost, but different topic.

I think the Eater 1 page (Hungryeaters1) should note the Eater 1's ability to eat a loafer and a dart (a little more fitting than the eater + tub eating MWSS in my opinion), as well as the ability of the ships to come from infinity.

Sample new RLE below (RLE and Plaintext may need updating)

Code: Select all

x = 80, y = 32, rule = B3/S23
bo$obo16b2obo2b2o$2b2o16b2o2bo2bo9bobo$o23bobo9bo$o3bo20bo10bo3bo6bo$
4bo2bo11bo16bo8bo3bo8bo2bo11bo$4o2bobo10b3o14bo2bo10bo11bo8bobo$6bo2b
o12bo13b3o6bo4bo7bo3bo9b2o$4o2bobo12bo24b5o8b4o$4bo2bo6b2o3b2o6b2o11b
2o11b2o10b2o9b2o$o3bo9bobo10bobo5bo4bobo10bobo9bobo8bobo$o15bo12bo4bo
bo5bo12bo11bo10bo$2b2o12b2o11b2o4bo6b2o11b2o10b2o9b2o$obo$bo6$50bo$11b
2o12bo11bo11bobo$11b2o12bo10bobo10bobo$11b2o12bo9bo2bo11b2o$14b2o11b2o
7b2o2b2o11b2o10b2o$14bobo10bobo10bobo10bobo9bobo$16bo12bo12bo12bo11bo
3bo$16b2o11b2o11b2o11b2o10b2o2bo$70bo$70bo$70bo$71b2o!

If anyone thinks of anything else important eater 1 can eat, reply here.

Current collection

Code: Select all

x = 102, y = 14, rule = B3/S23
bobo$4bo$o3bo77bo$4bo8b5o8b4o10bo9b2o9bo9bo9bobo$bo2bo7bo4bo7bo3bo8bo
bo9b2o9bo8bobo8bobo$2b3o12bo11bo9b2o9b2o9bo7bo2bo9b2o$6b2o4bo3bo2b2o4b
o2bo2b2o9b2o9b2o8b2o5b2o2b2o9b2o7b2o$bo4bobo5bo4bobo9bobo8bobo8bobo7b
obo8bobo8bobo6bobo$obo5bo12bo11bo10bo10bo9bo10bo10bo8bo3bo$bo6b2o11b2o
10b2o9b2o9b2o8b2o9b2o9b2o7b2o2bo$99bo$99bo$99bo$100b2o!

EDIT:

confocaloid wrote: March 22nd, 2025, 4:33 pm Question: what are largest (measured by the minimum population) known spaceships edible by a single eater 1 (without any other catalysts or any sparkers)?

May be relevent to add to the eater 1 page once we have an answer.

Posted: **March 23rd, 2025, 4:00 am**

^^ The most likely outcome is that the answer will become "arbitrarily large", when someone discovers an extensible spaceship containing either a wick segment or a wave segment, such that when the "head" is eaten by a single eater 1, the remaining "tail" burns cleanly as a fuse without leaving any leftover junk.

Posted: **March 29th, 2025, 5:12 am**

Can someone revise the P80 gliderless HWSS gun to be a page about the p80 R-pentomino hassler instead, since the mechanism now supports the smallest p80 glider gun and numerous other technologies associated with smallest guns?

Posted: **March 29th, 2025, 5:17 am**

WhiteHawk wrote: March 29th, 2025, 5:12 am Can someone revise the P80 gliderless HWSS gun to be a page about the p80 R-pentomino hassler instead, since the mechanism now supports the smallest p80 glider gun and numerous other technologies associated with smallest guns?

Disagree. There are lots of hasslers with unsure notability. There are relatively few known gliderless guns.

In any case, creating a new separate page for the hassler (if considered notable; LW:NB) would be definitely better than trying to repurpose an existing page about another topic.

Posted: **March 29th, 2025, 11:31 am**

The fifth hassler on Period-30 R-pentomino hasslers article was found by Entity Valkyrie 2 on October 26th, 2024 and reduced by Period1GliderGun on October 28th, 2024.

Posted: **April 5th, 2025, 12:18 pm**

The "in the news" item about the new smallest unsynthesizable still life doesn't link to the correct place.

EDIT by dvgrn: Fixed by Sokwe.

Posted: **April 5th, 2025, 1:56 pm**

The edits https://conwaylife.com/w/index.php?titl ... did=161164 add a link to viewtopic.php?p=132694#p132694 which is unrelated.

From the content of the added news item, I think the link should be replaced by viewtopic.php?p=209209#p209209

A likely reason is copy/paste error, because the same link appeared in the recent post viewtopic.php?p=209323#p209323

LaundryPizza03 wrote: April 5th, 2025, 12:18 pm The "in the news" item about the new smallest unsynthesizable still life doesn't link to the correct place.

EDIT by dvgrn: Fixed by Sokwe.

Posted: **April 8th, 2025, 8:01 am**

I suggest that it would be better if the pattern in the 'Sawtooth 177' LifeWiki article was advanced by 15 generations so that it is shown at its actual minimum population.

The current pattern does have a smaller bounding box, but since that isn't any record, a smaller bounding box is of secondary importance.

BCNU,
-dbell

Posted: **April 8th, 2025, 10:24 pm**

History of Catagolue, Template:CurrentNews: the b3s23/C1 census reaches a total of 7 quadrillion objects.

Posted: **April 10th, 2025, 8:19 am**

dbell wrote: April 8th, 2025, 8:01 am I suggest that it would be better if the pattern in the 'Sawtooth 177' LifeWiki article was advanced by 15 generations so that it is shown at its actual minimum population.

I can do that at some point. First I'm trying to decide whether it's a good idea for the new "Sawtooth 172" and "Sawtooth 168" to each get their own pages, following the sort-of tradition of "Sawtooth 181" and so on. "Sawtooth 172" currently has a redlink in "Sawtooth 177", and "Sawtooth 168" has redlinks now that it's mentioned in "Sawtooth" and in the Did-You-Knows.

An alternate idea would be to move all of the sawtooth patterns in this family into one article, with a table of contents and a linkable header for each sawtooth. Starting with Sawtooth 201, I believe, there are several patterns that all use 58P5H1V1 and have an expansion factor of 121, and it might be nice to be able to compare them on the same page.

That would follow the relatively recent tradition of documenting optimizations (see, e.g., the period-14 glider gun article). It would make it easy to add further record-breakers in the future -- until it's time to start a new sawtooth family, anyway! Redirects could be added to the appropriate sections from "Sawtooth 168" and so on.

Thoughts on this?

Posted: **April 10th, 2025, 10:34 am**

dvgrn wrote: April 10th, 2025, 8:19 am An alternate idea would be to move all of the sawtooth patterns in this family into one article, with a table of contents and a linkable header for each sawtooth. Starting with Sawtooth 201, I believe, there are several patterns that all use 58P5H1V1 and have an expansion factor of 121, and it might be nice to be able to compare them on the same page.

I don't mind if you make a nice table like you suggest, listing the record-breaking or notable sawtooths, with links to the details.

I want to make a couple of small additions to your comments.

The expansion factors of the latest sawtooths aren't all 121. My new-style sawtooth 177 has an expansion factor of 41 or 1682, depending on whether or not it is the every-other-cycle minimum version or not. (I just edited my older post to explain this).

Also, it is true the the newer sawtooths for over 10 years all use the 58P5H1V1 spaceship, because it is the smallest known diagonal spaceship slower than a glider. But the glider reactions using that ship have changed, which I think is important to note.

BCNU,
-dbell

Posted: **April 13th, 2025, 6:32 am**

The text "(if not the only program)" should be deleted from the 'Golly' LifeWiki page.

(My own life program, for example, can run OTCA patterns quickly too.)

BCNU,
-dbell

EDIT by dvgrn: Done.

Posted: **April 15th, 2025, 9:26 am**

I just checked the honey farm hasslers and shuttles and traffic light hasslers for 180P8s that could be replaced with 164P8s and changed them. The p56 LOM page was also changed because one of them was the same pattern as one in the traffic light section. However, I have a job, and I can't check the rest of the hassler pages right now without taking time out of my job. Is someone else able to complete the task?

Unrelated: Look at https://conwaylife.com/wiki/Highest_vol ... scillators. (6 if part of the link gets cut off by an ellipsis.) The "rotor size" should either

1. be renamed minimum population (and have a few entries changed)
2. change (almost) all the numbers to the number of active cells throughout the entire oscillator (which LifeViewer shows through Identify) as the equivalent page for p5 already does.
3. show both like the p3, p4, and p8 pages already do.

p7 has the same issue as the p6 page.

Posted: **April 15th, 2025, 10:38 am**

Working through the 180P8s... Edit: think I got all of them

ConwayLife.com

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