Puffer with unstable trail (B37/S23)

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calcyman
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Re: Puffer with unstable trail (B37/S23)

Post by calcyman » September 6th, 2010, 8:07 am

Furthermore the gun's period is necessarily a multiple of four, so successive rakes emit gliders of the same colour square and phasing flavour.
I think that with sixteen copies of the mechanism, you can guarantee every possible pairing of phase and parity (eight phases * two parities). If four spinners can be composed into a delay of 8n+4 generations, then this could be reduced to eight copies of the mechanism.

To redress this, here is a collection of apostrophes that you can use to correct my past and future mistakes.
Thanks! :D
What do you do with ill crystallographers? Take them to the mono-clinic!

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Wojowu
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Re: Puffer with unstable trail (B37/S23)

Post by Wojowu » November 18th, 2011, 5:36 pm

Do you also see similarity between R-pentomino and Switch engine in Conway's Life? It can be used as puffer, spaceship, rake, and one of this spaceships looks for me similar to 13-engine Cordership:

Code: Select all

x = 55, y = 46, rule = B37/S23
2b3o7b3o6b3o7b3o6b3o7b3o$5bo5bo12bo5bo12bo5bo$o5bo3bo5bo2bo5bo3bo5bo2b
o5bo3bo5bo$ob2o2bo3bo2b2obo2bob2o2bo3bo2b2obo2bob2o2bo3bo2b2obo$4b3o3b
3o10b3o3b3o10b3o3b3o$2bo3bo3bo3bo6bo3bo3bo3bo6bo3bo3bo3bo$2b3o7b3o6b3o
7b3o6b3o7b3o$2b3obo3bob3o6b3obo3bob3o6b3obo3bob3o2$5b3ob3o12b3ob3o12b
3ob3o$5b2o3b2o12b2o3b2o12b2o3b2o5$3b2o45b2o$2bo2bo43bo2bo$2bo2bo43bo2b
o$3b2o45b2o4$11b3o5b3o11b3o5b3o$10bo2bo5bo2bo9bo2bo5bo2bo$3b2o5bo3bo3b
o3bo9bo3bo3bo3bo5b2o$2bo2bo4bo2bo5bo2bo9bo2bo5bo2bo4bo2bo$2bo2bo5bobo
5bobo11bobo5bobo5bo2bo$3b2o45b2o4$21bo2bo5bo2bo$21bo2bo5bo2bo$21bo3bo
3bo3bo$21bob2o5b2obo$21bobo7bobo$21b3o7b3o$5bo43bo$5bo43bo2$22bobo5bob
o$22bo2bo3bo2bo$23bobo3bobo$21bo3bo3bo3bo$21bo2bo5bo2bo$21bo11bo!
What do you think?
First question ever. Often referred to as The Question. When this question is asked in right place in right time, no one can lie. No one can abstain. But when The Question is asked, silence will fall. Silence must fall. The Question is: Doctor Who?

muzik
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Re: Puffer with unstable trail (B37/S23)

Post by muzik » June 30th, 2016, 5:32 am

Yes, I am aware this thread is almost five years without a post, but I guess this is better than cluttering the place with unneccesary duplicates.


How about c/10 orthogonal technology? We have a c/10 spaceship, which, if not for two cells would be exactly the same as copperhead:

Code: Select all

x = 28, y = 15, rule = B37/S23
2$11b2o$10b4o$11b2o$9b6o$10b4o2$9b2o2b2o$7b2obo2bob2o$10bo2bo3$11b2o$
11b2o!
I call this the "goldenhead". Because, you know, gold and copper are both not silver coloured.

The tagalong is functional:

Code: Select all

x = 10, y = 20, rule = B37/S23
4b2o$3b4o$4b2o$2b6o$3b4o2$2b2o2b2o$2obo2bob2o$3bo2bo3$4b2o$4b2o2$bobo
2bobo$o2bo2bo2bo$o8bo$o8bo$2o6b2o$2b6o!
Bored of using the Moore neighbourhood for everything? Introducing the Range-2 von Neumann isotropic non-totalistic rulespace!

NickGotts
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Re: Puffer with unstable trail (B37/S23)

Post by NickGotts » December 23rd, 2019, 12:46 pm

The c/2 puffer growing from this:

Code: Select all

x = 3, y = 7, rule = B37/S23
b2o$2o$bo2$bo$2o$b2o!
or even this:

Code: Select all

x = 3, y = 9, rule = B37/S23
bo$bo$2o2$2bo2$2o$bo$bo!
emerged out of a large soup. I'd be surprised if it hasn't been reported before, but it doesn't appear in this thread. As with a lot of B37/S23 puffers, it develops a repeating body (with a spatial period of 240) in front of a chaotic tail. The tail can be amputated to produce a "clean" puffer, but I haven't found a simple starting pattern that avoids growing it.

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Hdjensofjfnen
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Re: Puffer with unstable trail (B37/S23)

Post by Hdjensofjfnen » December 23rd, 2019, 1:34 pm

NickGotts wrote:
December 23rd, 2019, 12:46 pm
... but it doesn't appear in this thread.
That would be incorrect. It appears on this thread's first page (the third post, in fact).
"A man said to the universe:
'Sir, I exist!'
'However,' replied the universe,
'The fact has not created in me
A sense of obligation.'" -Stephen Crane

Code: Select all

x = 7, y = 5, rule = B3/S2-i3-y4i
4b3o$6bo$o3b3o$2o$bo!

NickGotts
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Re: Puffer with unstable trail (B37/S23)

Post by NickGotts » December 24th, 2019, 3:19 pm

So it does - thanks.

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