Search for low period oscillators

[Monocot]

As I mentioned in the "Accidental discoveries thread" I started a "screening" for oscillators.

I got into it as I found WinLifeSearch 0.61 (by Jason Summers and Karel Suhajda, found here:http://entropymine.com/jason/life/software/), and tried if it would run under Wine/VBoxed WinXP.

It worked in both cases and turned up some unknown p3 oscillators. (See thread for accidental discoveries)

Because I cordially dislike Windows, and tried WinLifeSearch only out of curiosity if it would run under Wine, I will use David Bells Lifesrc.

Tropylium pointed out to me that there isn't much interest in oscillators, so no one has done a (more or less) comprehensive search.
So, I will do just that. Boundaries of my hardware seem to be approx. 20x20 squares up to a period of 4.
Actually, the real borders here are those of my patience - and they are reached after approx. 1 day. Which is the time a search with the above parameters will take.
And, even if there is not much interest in this search, there will maybe be another part of the GoL -space where the here "might be dragons"- marking can be erased.

I will use both a Lenovo ThinkPad T61 and R61 with each 3Gb RAM, 2.1 Ghz dualcores and Lubuntu Linux 12.04.

The program I used was lifesrc 3.8 by David Bell.
(Found here: http://members.canb.auug.org.au/~dbell/)

I will give the used options and the most not-redundant search results, and I will try to do a search every time one of my computers idles.

For start I will use the following parameters for a search:
-r20 -c20 -g4 -a -v1000000 -d1000000 20x20.wdf -o5 20x20.txt
(r: # of rows, c: # of columns, g: # of generations (periodicity), -a search also for subperiods, v/d/o verbosity and output settings)

This search will run over the weekend, I will post results on Monday.
(If there are any.)

[Extrementhusiast]

I'm currently looking for a p9 sparker that can survive in B3/S238. Any ideas?

[Tropylium]

I'm currently looking for a p9 sparker that can survive in B3/S238. Any ideas?

Looking for an alternate snacker stabilization seems like the best possibility.

[Extrementhusiast]

That's exactly what I'm looking for.

Looking for an alternate snacker stabilization seems like the best possibility.

That's exactly what I'm looking for!

[Tropylium]

These seem like two possible initial approaches:

Code: Select all

x = 32, y = 20, rule = B3/S238
2o26b2o$obo3bo21b2o$2bo2bobo$b2obobo$4bo25b2o$4b2o2bo4bo16bo$7bo6bo4bo
4bo3bobo$6bo8bo2bo6bo2b2o$6bo8bobo8bo$6bo8bobo8bo$3b2o2bo6bo2bo8bo$2bo
bo3bo4bo4bo6bo$2bo16bo4bo3b2o$b2o24b3o$27b2o4$26b2o$26b2o!

The right side could work with a diagonal p3 sparker, but finding one doesn't seem all that much easier a task (aside from the fact that searching for a new one would be easier). The left side might be developable into a custom eater.

[Extrementhusiast]

I got it!

Code: Select all

x = 24, y = 19, rule = B3/S238
2b2o16b2o$3bo16bo$3bobo12bobo$4b2o12b2o$9bo4bo$7b2ob4ob2o$9bo4bo$2ob2o
14b2ob2o$bobo16bobo$o4b2o10b2o4bo$b2o2b2o10b2o2b2o$2bo4bo8bo4bo$3b3obo
8bob3o$bo5bo2bo2bo2bo5bo$b2obo2bob2o2b2obo2bob2o$4bob2o8b2obo$b3o4b3o
2b3o4b3o$bo2b4o2bo2bo2b4o2bo$4bo2bo8bo2bo!

Turns out that the relevant p3 sparker was already in Jason's collection.