For discussion of specific patterns or specific families of patterns, both newly-discovered and well-known.
Posts: 1951
Joined: November 8th, 2014, 8:48 pm
Location: Getting a snacker from R-Bee's

Left, reduced population, right, reduced bounding box:

Code: Select all

``````x = 38, y = 16, rule = B3S23
11b2o19b2o\$11bo3b2o15bo3b2o\$2b2o9bo2bo6b2o9bo2bo\$bo2bo7b3o7bo2bo7b3o\$b
obo2b2ob2o11bobo2b2ob2o\$2bob2obobob4o8bob2obobob4o\$obo2bobobo5bo5bobo
2bobobo5bo\$2obo3bo2b6o5b2obo3bo2b6o\$3bo3bo16bo3bo\$2obobobob4ob2o8bobob
ob4ob2o\$o2bobob2o4b2obo6b2obob2o4b2obo\$2b2ob2o3b2o4bo7bob2o3b2o4bo\$8b
2obob3o7bo5b2obob3o\$9bobobo10b5obobobo\$7bo4bo13bo6bo\$7b2o!
``````
LifeWiki: Like Wikipedia but with more spaceships. [citation needed]

Dean Hickerson
Posts: 87
Joined: December 19th, 2015, 1:15 pm

BlinkerSpawn wrote:Left, reduced population, right, reduced bounding box:
Here's a further reduction in both population and bounding box:

Code: Select all

``````x = 17, y = 14, rule = B3/S23
5bob2o\$5b2o2bob2o\$3b2o3bo3bo\$2bo3b2ob2o\$bob3obobob4o\$obo2bobobo5bo\$o2b
o3bo2b6o\$bobo3bo\$2obobobob4ob2o\$3bobob2o4b2obo\$3bob2o3b2o4bo\$4bo3b2obo
b3o\$5b3o4b2o\$7bo!
``````

muzik
Posts: 3775
Joined: January 28th, 2016, 2:47 pm
Location: Scotland

Not neccesarily a discovery, but is there such thing as an oblique barberpole?

Something that supports this:

Code: Select all

``````x = 47, y = 25, rule = B3/S23
o\$obo\$2bobo\$4bobo\$6bobo\$8bobo\$10bobo\$12bobo\$14bobo\$16bobo\$18bobo\$20bob
o\$22bobo\$24bobo\$26bobo\$28bobo\$30bobo\$32bobo\$34bobo\$36bobo\$38bobo\$40bob
o\$42bobo\$44bobo\$46bo!
``````
Bored of using the Moore neighbourhood for everything? Introducing the Range-2 von Neumann isotropic non-totalistic rulespace!

Posts: 1951
Joined: November 8th, 2014, 8:48 pm
Location: Getting a snacker from R-Bee's

muzik wrote:Not neccesarily a discovery, but is there such thing as an oblique barberpole?

Something that supports this:

Code: Select all

``````x = 47, y = 25, rule = B3/S23
o\$obo\$2bobo\$4bobo\$6bobo\$8bobo\$10bobo\$12bobo\$14bobo\$16bobo\$18bobo\$20bob
o\$22bobo\$24bobo\$26bobo\$28bobo\$30bobo\$32bobo\$34bobo\$36bobo\$38bobo\$40bob
o\$42bobo\$44bobo\$46bo!
``````
Didn't I refer you to DRH-oscillators.rle before?

Code: Select all

``````x = 17, y = 23, rule = B3/S23
13b3o2\$12bo2b2o2\$10b2obo2bo\$14bo\$9b2o3bo2\$8b2o2\$7b2o2\$6b2o2\$5b2o2\$4b2o
\$2bo\$3bobo\$2obob3o\$3bo4bo\$bobob3o\$2b2obo!
``````
LifeWiki: Like Wikipedia but with more spaceships. [citation needed]

muzik
Posts: 3775
Joined: January 28th, 2016, 2:47 pm
Location: Scotland

BlinkerSpawn wrote:Didn't I refer you to DRH-oscillators.rle before?
Probably.

Is there a smaller stabilisation?
Bored of using the Moore neighbourhood for everything? Introducing the Range-2 von Neumann isotropic non-totalistic rulespace!

muzik
Posts: 3775
Joined: January 28th, 2016, 2:47 pm
Location: Scotland

New(?) period 12 oscillator, based on an eater posted by PHPBB12345s

Code: Select all

``````x = 19, y = 21, rule = B3/S23
14bo\$13bobo\$13bobo\$12b2ob3o\$18bo\$12b2ob3o\$12b2obo3\$4b2o3b2o\$4b2o2bo2bo
b2o\$8bobo2b2o\$9bo2\$3bob2o\$b4o\$o\$b3ob2o\$3bobo\$3bobo\$4bo!
``````

Think I might have seen this rotor stabilised with caterers/foxes before
Bored of using the Moore neighbourhood for everything? Introducing the Range-2 von Neumann isotropic non-totalistic rulespace!

mniemiec
Posts: 1106
Joined: June 1st, 2013, 12:00 am

muzik wrote:New(?) period 12 oscillator, based on an eater posted by PHPBB12345s ... Think I might have seen this rotor stabilised with caterers/foxes before
This is Baker's Dozen. This was traditionally hassled by caterers or jams or other oscillators, but eater2s will likely be cheaper and more compact. I am not sure if this stabilization was known before.

Posts: 1951
Joined: November 8th, 2014, 8:48 pm
Location: Getting a snacker from R-Bee's

mniemiec wrote:
muzik wrote:New(?) period 12 oscillator, based on an eater posted by PHPBB12345s ... Think I might have seen this rotor stabilised with caterers/foxes before
This is Baker's Dozen. This was traditionally hassled by caterers or jams or other oscillators, but eater2s will likely be cheaper and more compact. I am not sure if this stabilization was known before.
This method has indeed been discovered before; I forget by whom.
LifeWiki: Like Wikipedia but with more spaceships. [citation needed]

AbhpzTa
Posts: 488
Joined: April 13th, 2016, 9:40 am
Location: Ishikawa Prefecture, Japan

mniemiec wrote:
muzik wrote:New(?) period 12 oscillator, based on an eater posted by PHPBB12345s ... Think I might have seen this rotor stabilised with caterers/foxes before
This is Baker's Dozen. This was traditionally hassled by caterers or jams or other oscillators, but eater2s will likely be cheaper and more compact. I am not sure if this stabilization was known before.
This method has indeed been discovered before; I forget by whom.
viewtopic.php?f=2&t=279&start=925#p17836
Iteration of sigma(n)+tau(n)-n [sigma(n)+tau(n)-n : OEIS A163163] (e.g. 16,20,28,34,24,44,46,30,50,49,11,3,3, ...) :
965808 is period 336 (max = 207085118608).

David
Posts: 212
Joined: November 3rd, 2009, 2:47 am
Location: Daejeon, South Korea

Any comments on this osc? I found this in 2009 Nov 2nd...

Code: Select all

``````x = 11, y = 11, rule = B3/S23
4b2o\$6bo\$2bobob3o\$5bo3bo\$obo4b2obo\$o2bo2bo2bo\$b2o2bob2o\$2bobobo\$2bobob
o\$3bobo\$4bo!
``````
Call me "Dannyu NDos" in Forum. Call me "Park Shinhwan"(박신환) in Wiki.

velcrorex
Posts: 339
Joined: November 1st, 2009, 1:33 pm

Statorless p5. I'm hoping this is new, assuming the wiki page on volatility is up to date.

Code: Select all

``````x = 15, y = 14, rule = B3/S23
o13bo\$b2o9b2o\$o4b2ob2o4bo\$2obo7bob2o\$bobo2bobo2bobo\$2bobo5bobo\$2b3o5b
3o\$2b3o5b3o\$2bobo5bobo\$bobo2bobo2bobo\$2obo7bob2o\$o4b2ob2o4bo\$b2o9b2o\$o
13bo!
``````
-Josh Ball.

drc
Posts: 1664
Joined: December 3rd, 2015, 4:11 pm
Location: creating useless things in OCA

velcrorex wrote:Statorless p5. I'm hoping this is new, assuming the wiki page on volatility is up to date.

Code: Select all

``````x = 15, y = 14, rule = B3/S23
o13bo\$b2o9b2o\$o4b2ob2o4bo\$2obo7bob2o\$bobo2bobo2bobo\$2bobo5bobo\$2b3o5b
3o\$2b3o5b3o\$2bobo5bobo\$bobo2bobo2bobo\$2obo7bob2o\$o4b2ob2o4bo\$b2o9b2o\$o
13bo!
``````
Wow that looks very nice, I've never seen it before
\100\97\110\105

Scorbie
Posts: 1445
Joined: December 7th, 2013, 1:05 am

drc wrote:
velcrorex wrote:Statorless p5. I'm hoping this is new, assuming the wiki page on volatility is up to date.

Code: Select all

``````x = 15, y = 14, rule = B3/S23
o13bo\$b2o9b2o\$o4b2ob2o4bo\$2obo7bob2o\$bobo2bobo2bobo\$2bobo5bobo\$2b3o5b
3o\$2b3o5b3o\$2bobo5bobo\$bobo2bobo2bobo\$2obo7bob2o\$o4b2ob2o4bo\$b2o9b2o\$o
13bo!
``````
Wow that looks very nice, I've never seen it before
Wow! Congrats! How did you find this? I am not even sure if one can tweak WLS settings to find this kind of thing!
Best wishes to you, Scorbie

velcrorex
Posts: 339
Joined: November 1st, 2009, 1:33 pm

Scorbie wrote:How did you find this? I am not even sure if one can tweak WLS settings to find this kind of thing!
Nicolay Beluchenko's version of WLS does allow you to search for exactly this kind of thing. There is an option to limit the number of cells in the stator, even down to zero.

EDIT:
-Josh Ball.

drc
Posts: 1664
Joined: December 3rd, 2015, 4:11 pm
Location: creating useless things in OCA

Probably known:

Code: Select all

``````x = 11, y = 11, rule = B3/S23
2o\$bo\$bobo3bo\$2b2o2bobo\$5bobo\$5bo\$5bo2bo\$8bo\$7bo\$8b3o\$10bo!
``````
EDIThttp://www.conwaylife.com/wiki/Confused_eaters
\100\97\110\105

muzik
Posts: 3775
Joined: January 28th, 2016, 2:47 pm
Location: Scotland

This, in all technicality, answers one of my questions:

Code: Select all

``````x = 25, y = 33, rule = B3/S23
10b2o\$11bo\$11bob2o2b2o\$o11bo3bobo\$bo15bo\$14b3o2\$17b2o\$17bo\$18b3o\$20bo
5\$10b2o10b2o\$9bo2bo8bo2bo\$o7bobobo6bo2bobo\$bo5b3obo7bo3bo\$2bo4b3o9bo\$
22bo\$20b2o4\$12bo\$o9b3o\$bo7bo3b2o\$2bo4bo2bo2bo\$3bo3bo3bobo\$7bo4bo2\$9b3o
!
``````
Bored of using the Moore neighbourhood for everything? Introducing the Range-2 von Neumann isotropic non-totalistic rulespace!

muzik
Posts: 3775
Joined: January 28th, 2016, 2:47 pm
Location: Scotland

Feel like this has been discovered already.

Code: Select all

``````x = 39, y = 17, rule = B3/S23
12bo\$11b2o\$10b2o4b2o2b2o\$2o7b3o4b2o2b2o\$2o8b2o4b2o\$11b2o\$12bo2\$18b3o2\$
29bo\$28b2o\$27b2o4b2o2b2o\$17b2o7b3o4b2o2b2o\$17b2o8b2o4b2o\$28b2o\$29bo!
``````
EDIT: well yup, a variant of it.
Bored of using the Moore neighbourhood for everything? Introducing the Range-2 von Neumann isotropic non-totalistic rulespace!

muzik
Posts: 3775
Joined: January 28th, 2016, 2:47 pm
Location: Scotland

A p3 I'm 99% sure is known. Popped up on WLS so let's test that assertion.

Code: Select all

``````x = 10, y = 10, rule = B3/S23
b2o4bo\$o2bo2bobo\$obobo2bobo\$b2ob2obobo\$4bo2b2o\$b4obo\$bo2bob3o\$2bobo4bo
\$obo2bobobo\$2o2b2ob2o!
``````
Bored of using the Moore neighbourhood for everything? Introducing the Range-2 von Neumann isotropic non-totalistic rulespace!

Sokwe
Moderator
Posts: 1631
Joined: July 9th, 2009, 2:44 pm

muzik wrote:A p3 I'm 99% sure is known. Popped up on WLS so let's test that assertion.
This is just stillater with a much larger stator. If you want to know whether an oscillator was previously discovered, you should first check jslife under the 'osc' folder (jslife is available here).
-Matthias Merzenich

muzik
Posts: 3775
Joined: January 28th, 2016, 2:47 pm
Location: Scotland

This a new oscillator? Not seeing it anywhere in DRH

Code: Select all

``````x = 10, y = 10, rule = B3/S23
2bo3bo\$bobobobo\$o2bobobo\$b2ob2ob2o\$3bo2bo2bo\$b3o4bo\$o3bobobo\$b3o\$3bob
2o\$4bo!
``````
Bored of using the Moore neighbourhood for everything? Introducing the Range-2 von Neumann isotropic non-totalistic rulespace!

Posts: 1951
Joined: November 8th, 2014, 8:48 pm
Location: Getting a snacker from R-Bee's

muzik wrote:This a new oscillator? Not seeing it anywhere in DRH

Code: Select all

``````x = 10, y = 10, rule = B3/S23
2bo3bo\$bobobobo\$o2bobobo\$b2ob2ob2o\$3bo2bo2bo\$b3o4bo\$o3bobobo\$b3o\$3bob
2o\$4bo!
``````
Not seeing it in any of the p4 jslife collections or recognizing it from any other ConwayLife posts; neat find!
Smaller version:

Code: Select all

``````x = 10, y = 10, rule = B3/S23
7b2o\$4bo2bo\$3bobobo\$2bobo2b2o\$bobo2bo2bo\$2bo4bobo\$4bo\$4obobo\$o2bo\$4b2o
!
``````
LifeWiki: Like Wikipedia but with more spaceships. [citation needed]

muzik
Posts: 3775
Joined: January 28th, 2016, 2:47 pm
Location: Scotland

Wiki page then?
Bored of using the Moore neighbourhood for everything? Introducing the Range-2 von Neumann isotropic non-totalistic rulespace!

dvgrn
Moderator
Posts: 6494
Joined: May 17th, 2009, 11:00 pm
Contact:

muzik wrote:Wiki page then?
I'd say no -- not quite that neat a find. P4 is a low enough period that if this oscillator counts as wiki-worthy, people could crank up WLS or JLS or whatever and generate hundreds more period-4 objects, and it would be hard to say why they were any less wiki-worthy than this one. The same goes for the piles of unnamed period-4 objects already collected in jslife.

Notice that the Oscillators of period 4 group in the LifeWiki currently has only 35 objects, almost all of which were (a) discovered in the early 1970s, (b) have useful sparks and therefore get included in all kinds of circuitry, or (c) both.

Of course, my flowchart for answering the "Wiki page?" question is pretty simple:

Wiki page? --> No

-- or, more seriously,

Multiple people have been talking about object fairly regularly for multiple years?
Yes --> should have a wiki page
No --> shouldn't have a wiki page yet

Of course you can perfectly well reduce "years" to "months" or "weeks", in special circumstances... but really, in most cases, there's no need to be in a big hurry to decide. If this new P4 turns out to provide a spark for a new smallest color-changing p4 glider reflector, or something along those lines, then it will end up on the wiki with no need to ask the question.

muzik
Posts: 3775
Joined: January 28th, 2016, 2:47 pm
Location: Scotland

There aren't many p7s... I'm assuming any new p7 rotors would deserve a page then.

Speaking of p7s, I haven't been having way too much luck searching for the T-nosed p7... anyone else up for the challenge?
Bored of using the Moore neighbourhood for everything? Introducing the Range-2 von Neumann isotropic non-totalistic rulespace!

Sokwe
Moderator
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