ConwayLife.com

77topaz

A combination of two rotating engines in the p15960 rule gives a big oscillator of period p191520 (!) that forms naturally from a very small predecessor:

Code: Select all

x = 6, y = 5, rule = B2kn3-kq4cit5ce6cn/S23ijkqr4ceikr5ek
b2o$o3b2o$o4bo$obob2o$b3o!

77topaz

Those are both fascinating oscillators. The first one looks almost like an RRO of an RRO - an RRO-like structure that doesn't quite return to its original position but instead "rotates" slightly as a whole, it's hard to describe. Visually, it's movement reminds me of that of cyclones. The second one...

77topaz

muzik wrote: ↑
January 4th, 2020, 10:26 am
What is the smallest infinite growth pattern in this rule?

Probably around this size:

Code: Select all

x = 7, y = 7, rule = B3457/S4568
3obobo$o3bobo$o2b3o$5obo$2o$ob2ob2o$ob3obo!

Just from a manual search in Golly, I haven't seen any 6x6 patterns exploding.

77topaz

GUYTU6J wrote: ↑
January 2nd, 2020, 5:22 am
5c/44d:
Code: Select all
x = 3, y = 3, rule = B2ck3-cqry4k/S2-cn3ijnqr
bo$2bo$3o!

p2 osc reflects counterfeit glider 180 degrees:

Code: Select all

x = 13, y = 15, rule = B2ck3-cqry4k/S2-cn3ijnqr
o2$o10$10b3o$10bo$11bo!

It can form shuttles:

Code: Select all

x = 26, y = 24, rule = B2ck3-cqry4k/S2-cn3ijnqr
o2$o10$10b3o$10bo$11bo9$23bobo!

77topaz

Natural 8c/16 ship in the slope-6 puffer/ship rule:

Code: Select all

x = 7, y = 8, rule = B37e/S2-in34i
2bo$bo$2obo$b2o$bobo$3bob2o$3bo2bo$3b3o!

77topaz

Also self-promoting, but I nominate what I think has been the most interesting OCA thing I've worked on this year, the pair-interaction ships of Omosso (see the linked forum post to the current end of the thread), a very large class of unique ships with very high periods. EDIT: Oh, I remembered some...

77topaz

Isn't this jumping the gun a bit? It's still 2019 all over the world and if you remember, the POTY 2017 was announced on December 31 of that year. Anyway, I nominate the mountain range patterns by Dean Hickerson and the stable cyclotron gun by Goldtiger997 (with earlier work by Dean Hickerson, Paul ...

77topaz

Moosey wrote: ↑
December 26th, 2019, 2:20 pm
This rulespace could be fruitful:
Code: Select all
x = 8, y = 4, rule = B2ek3ainq/S02-in
bo4bo$obo2bobo$obo$5bobo!
c/2 on the left, 2c/7 on the right

To define the boundaries of the rulespace, these two ships have minrule B2ek3in/S02-in and maxrule B2ek3-ejy4-cit5-iy6-i78/S02-i3-q4-i5678.

77topaz

There is a mistake: https://conwaylife.com/ref/lexicon/lex_s.htm#spaceship [(2,1)c/7 oblique Sir Robin Adam P. Goucher Mar 2018] Sir Robin is not c/7 Hmm, this error was already mentioned in July 2018 and thereafter mentioned to be fixed: The patch to the single-page :spaceship: table is done, so t...

77topaz

I have a significantly newer version of Safari (12.1.2), and I don't see that issue. The only thing I see that might be related to the issue is that the holiday-snow accumulates on top of gridlines the same way it does on live cells.

77topaz

I'm astonished by the tubs this quadratic replicator produces (and also the history envelope). Does this fractal appear elsewhere? x = 5, y = 5, rule = B2kn3-nq5y6i7/S23-aeny4ciknqtz 3bo$2b3o$bo$2obo$bo! It does, actually: x = 1, y = 1, rule = B1/S02in4cez6in8 o! (Credit to Nolovoto on the Conwayli...

77topaz

The "time to boredom" is the time when e.g. for the D8_4 puffer methuselae when the glider streams form something like a boat-bit that stops them from interacting with the rest of the ash; dvgrn has measured this for numerous of the D8_4 methuselae soups. For Gotts' puffer methuselae it'd be more di...

77topaz

Wait, so it doesn't commit old, uncommitted hauls? That is a problem by itself... To clarify since you may not have understood correctly, I didn't mean there was a limit on time in which a haul could be committed, I meant that per a given amount of time the process can only commit so many hauls and...

77topaz

There is also a limit on how many hauls the script that commits hauls (it has a short name, but I forget what) can process in each pass it does every five to ten minutes, which may be what causing the X3VI hauls to not get committed because there are so many of them uploaded soon after each other.

77topaz

Well, to break it down, "reflectorless" demonstrates the idea of the oscillator being referred to as being of a certain geometry so that it would seem that it should involve an internal object being reflected or hassled, but does not. Thus, the term "RRO of loopability 1" is still valid, but only a...

77topaz

It's not "fake", it's just "loopability = 1". It still reflectorless, it is still rotating, and it is still an oscillator. The term RRO was originally created to refer specifically to loopable oscillators. To quote Discord user zM, "The whole point of an RRO is that you can have multiple phase-shif...

77topaz

Can someone discover a spaceship in this rule? All I found in a 20x20 random box. (with only the selection and random tool): x = 458, y = 9, rule = B2ikn3-ace/S23 This rule cannot have spaceships. You'd need to add either B2e or B3a (or B1e or B2a, but those transitions vastly increase explositivit...

77topaz

Quadratic replicators calcify into oscillators that look like they belong in a B0 rule: x = 20, y = 20, rule = B1e/S01e2i4e b4obo2bob3ob2o$2bob3o2bo2b3ob3o$ob2o3b4o3b4obo$bobo3bo2bob2o2b2o$2o2b 2o3b4o3b4o$4b6o4b4obo$b2o3bo2bo2bobobob2o$bo3bo2b2obobob2o$ob2ob4ob2o 2bo3bo$2o3b3o2bobobo3b2o$2o2b5o2b5ob...

77topaz

Any rules that support this ship but are less explosive? x = 3, y = 4, rule = B2in3aijn6i8/S234ci 2bo$b2o$2o$b2o! The ship's minrule is B2in3aijn8/S234i and its maxrule B2in3aijn4c6i8/S234ci6ei8. Unfortunately, both of those rules are explosive with common rakes and puffers, meaning it's likely tha...

77topaz

More from apgsearch, a tagalong for the second-smallest p2 c/2:

Code: Select all

x = 5, y = 6, rule = B2ek3-ajny4ajqr5a/S02ack3ackny4aq5y
2b3o$3bo$bo$b2obo$obo$o!

And a p2 c/2 not yet in the collection:

Code: Select all

x = 9, y = 3, rule = B2ek3-ajny4ajqr5a/S02ack3ackny4aq5y
3o3b3o$bob3obo$3bobo!

77topaz

The thing is, it's dubious whether that oscillator fits the definition of an RRO because of those temporary ponds.

77topaz

From wildmyron's apgsearch, here is a ship not yet in the collection, 2c/4 orthogonal:

Code: Select all

x = 10, y = 5, rule = B2ek3-ajny4ajqr5a/S02ack3ackny4aq5y
3o4b3o$bob4obo2$3b4o$2bo4bo!

77topaz

--rule b2i34c6cen7c8s2-i3-q4c5a6e8 --symmetry 1x256 I get an error when I try to submit soups myself But it does search fast I also get an error, a "Bad status: 500". This seems like a bug in apgsearch. :o EDIT: After testing for a bit, this error does not appear in other symmetries of the rule, an...

77topaz

JP21's phrasing suggests they are not looking for rules with adjustable but rather rules with the most known distinct spaceship mechanisms. Hive (B3-ry4ckn/S2-in3-cjn4it5aiky6-a7e8) seems like it would be a good example of a rule in this direction.

77topaz

x = 4, y = 4, rule = B2k3aein4ity7e/S23-aek4it5r b3o$o2bo$o$2o! If you look diagonally at this replicator, you can see the still lifes it leaves behind correspond to the fractal of the toothpick sequence . Before you mention it, there are undoubtedly other replicators which follow the toothpick seq...

ConwayLife.com

Search found 1496 matches

Re: Miscellaneous Discoveries in Other Cellular Automata

Re: Miscellaneous Discoveries in Other Cellular Automata

Re: Gems (B3457/S4568)

Re: Counterfeit Gliders

Re: Thread For Your Unrecognised CA

Re: OCA DOTY 2019

Re: POTY 2019 and POTD 2010 Nomination Thread

Re: Thread For Your Unrecognised CA

Re: Life Lexicon update -- now Release 29, 2 July 2018

Re: Pattern viewer for forum threads

Re: Rules with interesting replicators

Re: Soup search results

Re: Catagolue Discussion Thread

Re: Catagolue Discussion Thread

Re: MaritimeLife (B2i34c6cen7c8/S2-i3-q4c5a6e8)

Re: MaritimeLife (B2i34c6cen7c8/S2-i3-q4c5a6e8)

Re: Thread For Your Unrecognised CA

Re: Rules with interesting dynamics

Re: Miscellaneous Discoveries in Other Cellular Automata

Re: B2ek3-ajny4ajqr5a/S02ack3ackny4aq5y

Re: Reflectorless Rotating Oscillators (RRO)

Re: B2ek3-ajny4ajqr5a/S02ack3ackny4aq5y

Re: apgsearch - haul requests

Re: Rules with the most amount of spaceships

Re: Rules with interesting replicators