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I've finally completed my 1 TB rotor tree pipeline sweep of 3c/6 frontends, unfortunately with no results. This was all done with a pretty severe effort, e.g. 1 TB of memory, separating WAO indicies, various framings of subproblems where possible, etc. The only further tricks I can think of that I ...

x = 17, y = 24, rule = B3/S23
6bob2o$b2o2bob2obo$bo3bo4bo$2b3ob4ob2o$4bobo4bo2bo$4bobob2obob2o$5b2ob
o2bo$10b2o$2o$b2o$o$7b2o3b2ob2o$7b2o3b2ob2o2$b2o4b2o$b2o4b2o3$ob2o$obo
$bo$b2o$b2o$b2o!


could u please search for a suitable supporting oscillator, preferably p<=4, that replaces the blocker ...

I did a little more work on symmetric handling in mgp-tool today. It's slow going because it's a lot of icky geometry and grid management and the edge cases are just vile.

On branch (unpublished), --pic-mode will add question marks for asymmetric recentering:


$ cat p1.l ...

I sketched hiking the edge configuration way, way up and having it annotate a few select outputs with reflected copies (where appropriate). This works even for wacky geometries, e.g.:


$ rlife llsss-recentering-wao c5-f2b/U=2X+3T '@bg' --right-edge odd --wao-right-edge-errors 01
...
20261009 14:39 ...

I think the filter and final partials stuff is looking pretty good. As I said above, simple use should be more or less unaffected but weird uses of filters or DL stuff will probably need to know some details.

The final partials stuff makes "--pre-partials none" slightly less weird. I still struggle ...

Easy one: the Crochet article on LifeWiki says that no 2c/6 spaceships have been found which support the Crochet. Surely you can find one in a few minutes, since all you need are some correctly positioned backsparks? Or has this already been done and the article is simply out of date?


Eyeball ...

I've sketched a major overhaul of how filters work. For typical/simple uses it would be undetectable, but for finicky use of multiple filters or DL steps there may be changes coming. Lengthy details below...

For old, old, incredibly old reasons, filters were first written as "steps", i.e. entirely ...

Please feel free to help with (the (7,1)c/8) searches. I mainly just want to see a complete ship; We could always use more eyes and brains on this.


Cool, I will take a quick look and see what I can squeeze in on free smaller machines immediately. Bigger searches ... eventually.


I see on ...

I apparently posted this thing from early 2021:
x = 78, y = 42, rule =B3/S23
7b2o$5bo3bo$5bo$b2obob2ob2o$o3b2o3b2o$o3bo3b2o$2o3b2o3bo$bo$2bo5b3o$4b
o3b5o$4bo6bo3b2o$5b2o3bo4b2o2bobo7bo$4bo2b2o2bobo3bobo2bo2bo2b3o2bo$4b
2o3bobobobob2o3b2obo7bo$4b3o2bobobo2b5o4bo3b3o$6bobobobobo2bo5bo4bob2o
bo ...

I tried for fronts and backs for parallel, unstaggered ants at 2c/7, with no results. It's difficult to sort the partials due to how badly many failed to engage the prompt. Ordered by apparent length and dropping those that subjectively spent it mostly not engaging the prompt, the best few f2b are ...

People often ask about LLSSS features with "can't you just do XXX with fully-reified partial boards?". The problem is that it doesn't work that way. LLSSS only has "vertical" (i.e. having fixed U value or extending parallel to the W axis, whichever way you want to think of it) strips of pattern in ...

(about LLSSS-ng)

I have been calling it L2S3ng, initially out of convenience but recently to quickly distinguish it from LLSSS. Perhaps that is a viable name...


I definitely laughed when I read "L2S3" there. There was a brief moment in time near the beginning of LLSSS history where I ...

I suppose I can reach out to gchromodynamics and ask if he could change the command names. It would be a bit of a hassle, but if it's important it should probably be done as soon as possible so the names don't propagate further.


I feel like much of that ship has sailed. At least we got a ...

I had an idea for avoiding repeating components. Couldn't you store W-rows of the spaceship in lookup tables...


I feel like I need to write a persistent page I can just link to, "it looks like you're trying to dictate LLSSS implementation details without understand the data model". As I just ...

By the way, amling, have you seen this yet?
https://conwaylife.com/forums/viewtopic.php?t=7451
https://github.com/SuffixAutomata/llsss-ng


I had, but there's really not much for me to say. I retain my commitment to my value that others may do whatever they wish with their own time and sanity ...

I tried to find a 4c/8 continuation of the known 2c/4 x 2c/1 edge, thinking that maybe I could force it to turn by using U=2X-T. This does work to bound the extension of the 2c/1 edge, but ultimately I did not end up with any good results.

2c/4 searches all generally died the instant they reach the ...

So far, I haven't seen ./rlife llsss-recentering used. What is the use case, and how does it differ from llsss-recentering-wao?


It makes more sense to ask/answer in reverse, i.e. "how is recentering WAO different from recentering?", which you more or less already asked here .

In my response ...

After S234w/B3 I also tried S235a/B3 for a c/5k, with no luck.


Oh dear. I suspect this indicates that a (2,1)c/5 exists but is extremely large. What were the parameters for this?


The c5k-1 search was mid_steps=29, taking ~25h and 1.12 TB (mid_steps=30 took even longer to hit 2 TB and die ...

I apparently posted this thing from early 2021:
x = 78, y = 42, rule =B3/S23
7b2o$5bo3bo$5bo$b2obob2ob2o$o3b2o3b2o$o3bo3b2o$2o3b2o3bo$bo$2bo5b3o$4b
o3b5o$4bo6bo3b2o$5b2o3bo4b2o2bobo7bo$4bo2b2o2bobo3bobo2bo2bo2b3o2bo$4b
2o3bobobobob2o3b2obo7bo$4b3o2bobobo2b5o4bo3b3o$6bobobobobo2bo5bo4bob2o
bo ...

After S234w/B3 I also tried S235a/B3 for a c/5k, with no luck. The last partials don't seem particularly unhealthy, but they are very, very wide:


x = 186, y = 33, rule = B3/S235aHistory
F36.F36.F36.F.34B.F.34B.F$F.34B.F.34B.F.34B.F.34B.F.34B.F$F.34B.F.34B
.F.34B.F.34B.F.34B.F$F.34B.F.34B.F.24BA9B ...

It was sort of a wild long shot, but I tried looking for 2c/10d back rake, specifically a WAO search from a glider stream, 2c10d-up, hoping for a PD division to c/5d. I ran it pretty aggressively, splitting up all WAO indices strictly and running separate searches for several different amounts of 2 ...

Do you happen to have even-symmetric, odd-symmetric, and asymmetric diagonal partials anywhere on hand? (Anyone reading this thread, if you have these, DM them to me)


I assume that "even" should be "gse". When I need examples usually I take existing ships that fulfill the symmetry and chop ...

Having a thread for "my" scripts, and a support link to that thread clearly marked inside the program,


If you want to go with the separate thread, that seems reasonable enough. Please consider me very much available for and committed to answering what LLSSS does with a grid and why. While I may ...

I tried running c6k-2 searches off of Sir Sprayer's giant spark, hoping for a tagalong. These were a combination of WAO at a given depth to force a change from Sir Sprayer and also this forbid_grid to discourage being disconnected from the spark:


| LLLuuuuuuuuuuuuuuRRR | LLLuuuuuuuuuuuuuuRRR ...

Amling, do you think this is enough warnings?

(screenshot)


I am grateful for your understanding and attention about trying not to make a mess for me, so please understand that I really do appreciate all the concern, but I think that screenshot is probably a bit overkill.

There are a lot of ...