Search found 7293 matches

by dvgrn
Today, 12:47 pm
Forum: Patterns
Topic: Finding bottlenecks
Replies: 9
Views: 1035

Re: Finding bottlenecks

HBx210E, HNE34T49, HNWT192, HNW2T196, and PF*198E share a common intermediate that is sometimes formed when a B-sequence is perturbed from behind. x = 9, y = 8, rule = B3/S23 6bo$6b2o$7b2o$6b2o2$2o$b2o$o! What phase of that post-B collision will be the canonical one? The first phase shared by all f...
by dvgrn
Yesterday, 7:43 pm
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2860
Views: 817340

Re: Thread for basic questions

Shuttle is usually a subcategory of hassler (unless it's a RRO or RFO or R180°O etc.) My own mental reference for the word "shuttle" is actually not the analogy with vehicles (which could perfectly well go round in a circle rather than back and forth). A weaver's shuttle is the piece that holds the...
by dvgrn
Yesterday, 9:26 am
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2860
Views: 817340

Re: Thread for basic questions

Does this count as a shuttle, or is the hassled region only allowed to make 180° turns? x = 18, y = 18, rule = B2ci3aik4c5ry6a7e/S1e2aei3-cnry4eiyz5aeir6ei8 10bo$10bo$12bo$11b2o2$2b2o$3bo$2o3$8bo2bo4b2o$8bo2bo2bo$8bo2bo2b2o2$5b 2o$5bo$7bo$7bo! Since the definition of a shuttle includes the idea of ...
by dvgrn
June 21st, 2021, 10:14 pm
Forum: Patterns
Topic: The Hunting of the Elementary Conduits
Replies: 531
Views: 294432

Re: The Hunting of the Elementary Conduits

PT14 (if I understand naming conduits correctly), although the BTS gets in the way of the new pi heptomino unless we find something else smaller or something that can survive being hit twice from different directions... Getting the pi heptomino into that input position looks even harder than gettin...
by dvgrn
June 21st, 2021, 7:17 pm
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2860
Views: 817340

Re: Thread for basic questions

How can I make apgsearch(python or compiled) make the 'stdin' soups? (e.g. 4g) To clarify, as long as the symmetry is not recognized, the program will read RLEs from stdin instead of generating soups from SHA of a random seed, is that right? Does the symmetry have to end with 'stdin'? There's a new...
by dvgrn
June 21st, 2021, 1:32 pm
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2860
Views: 817340

Re: Thread for basic questions

Why has this pattern been ignored for so long? (7 months) x = 20, y = 29, rule = B3/S23 o$3o$3bo$2b2o3$3b2o$2bobo4bo$2bo5bobo$3bo4bobo$3o6bo$o17b2o$18bo$16bob o$16b2o2$6b2o$5bo2bo$5bo2bo$4bo4bo$4bo4bo$5b4o$4b2o2b2o$4bo4bo$4bo4bo 3$5b4o$6b2o! Is it that useless? It hasn't really been ignored, has it...
by dvgrn
June 21st, 2021, 7:17 am
Forum: Patterns
Topic: Results of catalyst tests
Replies: 184
Views: 75931

Re: Results of catalyst tests

The large still life produced in the leftmost result may have at least some niche utility, as it can react with a particular variety of active region, where there's a c/2 engine-like face right next to something that will tame the reaction with the catalyst (some examples shown here)... Wow, a 20-t...
by dvgrn
June 20th, 2021, 11:20 pm
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2860
Views: 817340

Re: Thread for basic questions

Is it possible to run apgsearch using custom seeds? Yes! A starting point is Catagolue as a generic pattern inventory . It does seem as if there should be a quick LifeWiki tutorial written giving all the details of an example of how to run a set of RLEs through apgsearch and upload them to Catagolu...
by dvgrn
June 20th, 2021, 11:35 am
Forum: Patterns
Topic: Thread for your speculative elementary conduits
Replies: 7
Views: 907

Re: Thread for your speculative elementary conduits

It seems this partial h-to-g might be used as a X-to-G0 if one can find a good way to re-direct a glider generated upstream... Hm. I definitely like it, but then again I always want to try and rescue this kind of thing and make something "useful" out of it: x = 179, y = 153, rule = LifeHistory .D$2...
by dvgrn
June 19th, 2021, 10:44 pm
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2860
Views: 817340

Re: Thread for basic questions

Why did you prefer RLE instead of apgcode? I can copy RLE straight out of Golly, and someone can copy and paste RLE straight back into Golly and see what it is -- or get a picture of it by decoding it manually, for small enough patterns. I'm not as confident of my ability to get the picture exactly...
by dvgrn
June 19th, 2021, 8:04 am
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2860
Views: 817340

Re: Thread for basic questions

Is there a Herschel conduit that outputs the xp0_16o4 Herschel parent? Does xp0_16o4 have a known glider synthesis? I don't know of any conduits that produce much of anything besides 4bo$5b2o$obobo$obo! The only exception I can remember is the Fx158, which produces just 2bo$3b2o$obo$o! instead. x =...
by dvgrn
June 19th, 2021, 7:52 am
Forum: General Discussion
Topic: Ask the Game of Life Guru one question!
Replies: 8
Views: 194

Re: Ask the Game of Life Guru one question!

I don't think so. [chain of eater5s] That doesn't work too well. If we were concerned only about gliders coming from one direction (NW or SE), this would have a safety rating of 1/2. But gliders from the NE or SW destroy things 17/18ths of the time, which brings the total asymptotic rating down far...
by dvgrn
June 18th, 2021, 7:47 pm
Forum: General Discussion
Topic: Ask the Game of Life Guru one question!
Replies: 8
Views: 194

Re: Ask the Game of Life Guru one question!

I'd take the Yedidia-Aaronson Turing machine (which halts if and only if a certain extension of ZFC is inconsistent), convert it to a GoL pattern, and ask 'is this an infinite-growth pattern'? https://www.scottaaronson.com/busybeaver.pdf Well, that might be a nice thing to know, but it's not very p...
by dvgrn
June 18th, 2021, 7:07 am
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2860
Views: 817340

Re: Thread for basic questions

I've never seen that occur naturally. Can you provide an example? Not that one in particular, but I've seen the related predecessor (where the bookend itself has an open hinge) occur occasionally. Looks like mniemiec's variant is just common enough that a natural result shows up in the octohash dat...
by dvgrn
June 17th, 2021, 12:45 pm
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2860
Views: 817340

Re: Thread for basic questions

Why is the canonical version of the century this: x = 4, y = 4, rule = B3/S23 b3o$3bo$ob2o$2o! and not the bookend or the normal B-hept-minus-one cell predecessor? I think that I was the one who picked that form for the Elementary Conduits Collection, and I'm not sure if I had any particularly good...
by dvgrn
June 17th, 2021, 9:26 am
Forum: Patterns
Topic: Thread for your unsure discoveries
Replies: 2302
Views: 1191573

Re: Thread for your unsure discoveries

There is this: https://conwaylife.com/forums/viewtopic.php?f=2&t=1849&p=101222#p101243 That's a good H-to-LOM, but it doesn't seem to be compatible with this new incomplete LOM-to-maybe-X. It might make sense to focus on finding a lot more direct H-to-LOM options before bothering to worry about wha...
by dvgrn
June 17th, 2021, 9:07 am
Forum: Patterns
Topic: Structures resistant to attack
Replies: 8
Views: 377

Re: Structures resistant to attack

Other rules have quadratic replicators that replicate fast enough that copies just go around whatever is in their way. Is that any more likely? Definitely maybe not, I'd say, but I don't know what I'm talking about... and I don't think anyone else does either, as far as a "more likely" judgment goe...
by dvgrn
June 17th, 2021, 7:47 am
Forum: Patterns
Topic: Thread for your unsure discoveries
Replies: 2302
Views: 1191573

Re: Thread for your unsure discoveries

Does LOM get used in any conduits? While this isn't a complete conduit, the active region goes very far. The block gets destroyed in generation 191, giving a lot of time to do something with it. x = 14, y = 10, rule = B3/S23 7b2o$6bobo$7bo4$2o7b3o$2o7bo2b2o$9b2o2bo$11b3o! Nothing much yet. This mig...
by dvgrn
June 17th, 2021, 7:24 am
Forum: Patterns
Topic: Structures resistant to attack
Replies: 8
Views: 377

Re: Structures resistant to attack

What do you mean with the computer thing? Of course we can compile Spore or something to a Turing machine and run that, but in the same spirit we can just do anything we want so that's not really that significant. Yeah, that's pretty much what I mean. You're really right that we "can't have life in...
by dvgrn
June 16th, 2021, 9:52 pm
Forum: Patterns
Topic: Structures resistant to attack
Replies: 8
Views: 377

Re: Structures resistant to attack

Hey! Sorry it took such a long time to reply! Thanks for the interesting links! It seems like there is so much stuff to read about, the forums and wiki have a high branching factor :). It's a bit disappointing that it's probably not possible, we'll never have actual life in GoL then! It seems like ...
by dvgrn
June 14th, 2021, 6:52 pm
Forum: Website Discussion
Topic: LifeWiki Trusted Account Request Thread - Post requests here
Replies: 488
Views: 201914

Re: LifeWiki Trusted Account Request Thread - Post requests here

Loadmaster wrote:
June 14th, 2021, 6:48 pm
I just joined today, so I'm requesting Trusted Account status.
Done!
by dvgrn
June 14th, 2021, 5:35 pm
Forum: Patterns
Topic: Gun Discussion Thread
Replies: 298
Views: 111919

Re: Gun Discussion Thread

p67 x = 27, y = 40, rule = B3/S23 7bo$7b3o$3o7bo$o8b2o10b2o$bo19bo$19bobo$19b2o5$10b2o$7b2o2bo$5bob2o3b 4o$3bob2o3bo3b2obo$5bob2o3bo3b2o$7b4o3b2obo$11bo2b2o$11b2o3$14b2o$11b 2o2bo$9bob2o3b4o$9b2o3bo3b2obo$9bob2o3bo3b2obo$11b4o3b2obo$15bo2b2o$ 15b2o5$6b2o$5bobo$5bo19bo$4b2o10b2o8bo$16bo7b3o$17b3o$19...
by dvgrn
June 14th, 2021, 2:13 pm
Forum: Patterns
Topic: Oscillator Discussion Thread
Replies: 1947
Views: 833213

Re: Oscillator Discussion Thread

More partials: p79, good fallback, bad period... I don't think anything above 78 (or special-case 74) is really a "bad period". Sphenocorona's H-to-domino can supply those sparks in a true-period way. Unfortunately Sphenocorona's H-to-domino doesn't work in this context: x = 228, y = 109, rule = Li...
by dvgrn
June 13th, 2021, 8:51 am
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2860
Views: 817340

Re: Thread for basic questions

Is there a program that generates random INT rules? For some definitions of "random", yes . You may not find that a 50% chance of each isotropic bit being ON tends to give very interesting rules, unless you really like chaotic explosions. It's easy to change the random weightings in the script if y...
by dvgrn
June 12th, 2021, 4:06 pm
Forum: Patterns
Topic: Thread for your unsure discoveries
Replies: 2302
Views: 1191573

Re: Thread for your unsure discoveries

Does this have any value? Well... definitely! But it's not new. It's an H-to-R converter that's been known for about a quarter of a century now -- part of the L156 Herschel conduit: x = 57, y = 89, rule = LifeHistory 11.D6.D2.5D2.3D10.D$11.D5.2D2.D5.D12.2D$11.D6.D2.D5.D13.D3.4D$11.D6.D 3.3D2.4D10.D...