Puffer with unstable trail (B37/S23)

[calcyman]

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!

[Wojowu]

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?

[muzik]

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!

[NickGotts]

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.

[Hdjensofjfnen]

... 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).

[NickGotts]

So it does - thanks.