Catalyst Discussion Thread

For discussion of specific patterns or specific families of patterns, both newly-discovered and well-known.
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Scorbie
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Re: Results of catalyst tests

Post by Scorbie » February 3rd, 2021, 6:17 pm

Sphenocorona wrote:
February 2nd, 2021, 1:33 am
The loaf spin catalyst has learned a new trick:

Code: Select all

x = 24, y = 93, rule = LifeHistory
7.3A8.B$6.A3.A2.2CB.B2C$6.A3.A.C2BC2B2C$6.A3.A.BCBC3B$7.3A2.2BC4B$18.
B$12.C4.2C.C$11.C.C3.2CB3C$12.C5.B4.C$17.2C.3C$18.C.C$18.C.C$19.C3$7.
F.F.F.F5$9.A8.B$10.A2.2CB.B2C$10.A.C2BC2B2C$10.A.BCBC3B$9.A2.2BC4B$
18.B$12.C4.2C.C$11.C.C3.2CB3C$12.C5.B4.C$17.2C.3C$18.C.C$18.C.C$19.C
4$7.F.F.F.F4$18.B$8.3A2.2CB.B2C$10.A.C2BC2B2C$7.A.2A.BCBC3B$7.2A3.2BC
4B$18.B$11.2C4.2C.C$11.2C4.2CB3C$18.B4.C$17.2C.3C$18.C.C$18.C.C$19.C
4$7.F.F.F.F4$.A16.B$.2A10.2CB.B2C$2.2A8.C2BC2B2C$.2A9.BCBC3B$12.2BC4B
$18.B$11.2C4.2C.C$12.C4.2CB3C$11.C6.B4.C$11.2C4.2C.3C$18.C.C$18.C.C$
19.C4$7.F.F.F.F4$18.B$2A11.2CB.B2C$.2A9.C2BC2B2C$2A10.BCBC3B$A11.2BC
4B$18.B$11.2C4.2C.C$12.C4.2CB3C$11.C6.B4.C$11.2C4.2C.3C$18.C.C$18.C.C
$19.C!
Huh, very interesting;

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Re: Results of catalyst tests

Post by MathAndCode » February 14th, 2021, 8:47 pm

A for awesome wrote:
November 29th, 2015, 10:51 am
I wonder about the twit eater without the tail:

Code: Select all

x = 14, y = 11, rule = LifeHistory
8.2A$8.A.A2$6.3A2.A.A$13.A$.2A3.C3.2A$.A3.C.A$2.A3.A$3.A$3A$A!
Although I can't find any promising catalyses right now, that doesn't mean there aren't any.
Here's an example where the diagonal line has one cell too many:

Code: Select all

x = 11, y = 13, rule = B3/S23
2b2o$2b2o$7b2o$7b2o$bo$obo$bo4$9bo$8b3o$8bo!
Perhaps the R-sequence could be perturbed from another direction to make it work. Also, I once took advantage of that long diagonal line for a synthesis.
MathAndCode wrote:
February 10th, 2021, 3:36 pm
Here's a synthesis that uses a different base that I found when searching for conduits:

Code: Select all

x = 37, y = 32, rule = B3/S23
36bo$34b2o$35b2o3$8bo18bobo4bo$9b2o5b2o9b2o3b2o$8b2o5b2o2bo8bo4b2o$18b
o$16b2o$14b3o3$22b2o$22b2o6b3o$5b2o9bo13bo$6b2o7bobo13bo$5bo10bo2$b2o
$obo$2bo21bo$23b3o$23bo6$22b2o$21bobo$23bo!
I'm sure that there's a more efficient way to make that object, though.
Of course, since we already know how to synthesize still-lives with seventeen or fewer cells with less than one glider per cell even without universal constructors, I'm sure that there's already a more efficient synthesis, which is why I didn't bother completing that one. Anyone who does enough manual conduit searches is eventually going to find potential bases. For example, here's something that I found with the same R and initial block:

Code: Select all

x = 28, y = 21, rule = B3/S23
27bo$25b3o$24bo$24b2o2$7b2o$7b2o2$2o$2o4$9bo$8b3o$8bo2$23b2o$23bobo$25bo$25b2o!
It eventually got turned into a four-glider converter..
There's another base-creating reaction that I got a record-tying synthesis from but was unable to get any other syntheses from despite repeated effort, a third base-creating reaction from which I got a bunch of syntheses that can probably be reduced, and at least two other reactions from which I haven't gotten any syntheses so far.



Edit: This might yield a way to add a bridge hat component:

Code: Select all

x = 110, y = 106, rule = B3/S23
109bo$107b2o$108b2o56$42bob2o$42b2obo23$58b3o$58bobo$58bobo6b2o$67b2o
18$3o$2bo$bo!


Another edit: This also could be useful:

Code: Select all

x = 112, y = 103, rule = B3/S23
109bo$109bobo$109b2o53$42bob2o$42b2obo23$58b3o$58bobo$58bobo6b2o$67b2o
18$3o$2bo$bo!
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wwei47
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Re: Results of catalyst tests

Post by wwei47 » April 11th, 2021, 11:14 am

JP21's blinker:

Code: Select all

x = 15, y = 19, rule = B3/S23
6bobo$6bobo$6b3o3$6b3o3$3b2o5b2o$b2o4bo4b2o$5b2ob2o$bobo7bobo$bo2bobo
bobo2bo$5obobob5o$o4bo3bo4bo$b3obobobob3o$3bo2bobo2bo$4bobobobo$5bo3b
o!
EDIT:

Code: Select all

x = 29, y = 12, rule = B3/S23
23bo3bo$23bo3bo$23bo3bo2$24bobo$12bo3bo5b2obob2o$2b3o6bobobobo4b7o$12b
o3bo6bo3bo2$2b3o8b3o8b3o$b2ob2o6b2ob2o6b2ob2o$o5bo4bo5bo4bo5bo!
Edit 2: Hold on...

Code: Select all

x = 12, y = 13, rule = B3/S23
2bobo$2b2obo$5bo2b2o$2b2obobobo$2bo2bobo$4bo3bo$3b2o$3b2o3bo$5bo$3o6b
o$2b2o3b2obo$10bo$10b2o!
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Re: Results of catalyst tests

Post by MathAndCode » May 13th, 2021, 4:29 pm

How do I see potential BTS catalyses in advance? Currently, the only BTS catalysis that I know is when a BTS replaces a fishhook that fails because it interacted with a domino spark in its recovery position (e.g. when trying to eat a B-heptomino parent).

Code: Select all

x = 7, y = 5, rule = B3/S23
o$o3bo$2b2obo$5bo$5b2o!
I try replacing a fishhook with a BTS every time it fails similarly or when it performs a successful catalysis, but the chaos comes back and destroys it soon afterwards, but I can't recall a time when it's ever worked (besides one (arguably two) example that shouldn't count because I was expecting the BTS to fail and which is useless for multiple reasons anyway). How do I get better with BTS placements?
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Re: Results of catalyst tests

Post by Entity Valkyrie 2 » May 15th, 2021, 9:28 pm

BTS double interaction:

Code: Select all

x = 12, y = 10, rule = B3/S23
3o$o2bo$b2o4b2o$5bo2bo$5b3o2$5b2obob2o$6bob2obo$6bo$5b2o!
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MathAndCode
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Re: Results of catalyst tests

Post by MathAndCode » May 15th, 2021, 9:38 pm

Entity Valkyrie 2 wrote:
May 15th, 2021, 9:28 pm
BTS double interaction:
That's why I try replacing a fishhook with a BTS when the fishhook performs a successful catalysis, but the chaos comes back and destroys it soon afterwards. I still don't know how to tell when it will work.
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Kazyan
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Re: Results of catalyst tests

Post by Kazyan » May 15th, 2021, 11:09 pm

I've found that the BTS is so versatile because it doesn't have a single iconic reaction--there are several evolutionary paths that a perturbed BTS can take to settle back into the original BTS configuration. Unfortunately, it's a catalyst better suited for automated programs than manual use.
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wwei47
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Re: Results of catalyst tests

Post by wwei47 » May 17th, 2021, 8:20 am

By Sokwe, a P4 catalyst capable of giving a block corner:

Code: Select all

x = 43, y = 19, rule = B3/S23
40bo$14bo24bobo$4b3o4bo3bo16b3o4bo2bo$2o10b3o13b2o10b2o$o2bob2ob3o17b
o2bob2ob3o$2b2obo2bobo19b2obo2bobo$3bobo2bob2o19bobo2bob2o$3bob2o3b2o
19bob2o3b2o$4bo2bo24bo2bo$5b3o25b3o$9bo27bo$7b2ob2o23b2ob2o$6bobo25bo
bo$6bo2bo2bo21bo2bo2bo$7bobo4bo20bobo4bo$8b2ob4o21b2ob4o$10bo27bo$10b
obo25bobo$11b2o26b2o!
I've wanted one of these for a long time.
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Re: Results of catalyst tests

Post by ihatecorderships » May 18th, 2021, 5:08 pm

I'm not sure this is the right place to put this but whatever.
I found this while browsing the old topics.
knightlife wrote:
July 28th, 2013, 8:21 am
Near miss:

Code: Select all

x = 27, y = 29, rule = B3/S23
bo$2bo$3o12$25b2o$25bo$23bobo$23b2o2$7b2o$7b2o2$17b2o$17b2o3$21b2o$20b
obo$20b2o!
Could it be made into an even smaller glider reflector?
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MathAndCode
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Re: Results of catalyst tests

Post by MathAndCode » May 18th, 2021, 7:42 pm

Kazyan wrote:
May 15th, 2021, 11:09 pm
I've found that the BTS is so versatile because it doesn't have a single iconic reaction--there are several evolutionary paths that a perturbed BTS can take to settle back into the original BTS configuration. Unfortunately, it's a catalyst better suited for automated programs than manual use.
What catalysts do you suggest I try in manual searches? For example, I've been considering learning the following catalyst.

Code: Select all

x = 7, y = 7, rule = B3/S23
2b2o$2bo$4bo$5o$o$3b4o$3bo2bo!
Is that a good idea, or will it be a disappointment/time-waster?
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Re: Results of catalyst tests

Post by EvinZL » May 18th, 2021, 7:55 pm

MathAndCode wrote:
May 18th, 2021, 7:42 pm
Kazyan wrote:
May 15th, 2021, 11:09 pm
I've found that the BTS is so versatile because it doesn't have a single iconic reaction--there are several evolutionary paths that a perturbed BTS can take to settle back into the original BTS configuration. Unfortunately, it's a catalyst better suited for automated programs than manual use.
What catalysts do you suggest I try in manual searches? For example, I've been considering learning the following catalyst.

Code: Select all

x = 7, y = 7, rule = B3/S23
2b2o$2bo$4bo$5o$o$3b4o$3bo2bo!
Is that a good idea, or will it be a disappointment/time-waster?
My experience with that is to first recognize "table-type" catalyses and then try a catalyst of that family. Then I look at how it fails and choose a replacement catalyst.

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Re: Results of catalyst tests

Post by MathAndCode » May 18th, 2021, 8:06 pm

EvinZL wrote:
May 18th, 2021, 7:55 pm
My experience with that is to first recognize "table-type" catalyses and then try a catalyst of that family. Then I look at how it fails and choose a replacement catalyst.
Can you show me some representative catalyses?
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wwei47
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Re: Results of catalyst tests

Post by wwei47 » May 18th, 2021, 8:51 pm

MathAndCode wrote:
May 18th, 2021, 8:06 pm
Can you show me some representative catalyses?
My guess:

Code: Select all

x = 7, y = 11, rule = B3/S23
2b2o$2bo$4bo$5o$o$3b4o$3bo2bo2$3b2o$b2obo$4bo!
Help me find high-period c/2 technology!
My guide: https://bit.ly/3uJtzu9
My c/2 tech collection: https://bit.ly/3qUJg0u
Overview of periods: https://bit.ly/3LwE0I5
Most wanted periods: 76,116

hotdogPi
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Re: Results of catalyst tests

Post by hotdogPi » May 18th, 2021, 8:55 pm

wwei47 wrote:
May 18th, 2021, 8:51 pm
MathAndCode wrote:
May 18th, 2021, 8:06 pm
Can you show me some representative catalyses?
My guess:

Code: Select all

x = 7, y = 11, rule = B3/S23
2b2o$2bo$4bo$5o$o$3b4o$3bo2bo2$3b2o$b2obo$4bo!
That works with a simple table on table.
User:HotdogPi/My discoveries

Periods discovered: 5-16,⑱,⑳G,㉑G,㉒㉔㉕,㉗-㉛,㉜SG,㉞㉟㊱㊳㊵㊷㊹㊺㊽㊿,54G,55G,56,57G,60,62-66,68,70,73,74S,75,76S,80,84,88,90,96
100,02S,06,08,10,12,14G,16,17G,20,26G,28,38,47,48,54,56,72,74,80,92,96S
217,486,576

S: SKOP
G: gun

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Kazyan
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Re: Results of catalyst tests

Post by Kazyan » May 18th, 2021, 9:06 pm

MathAndCode wrote:
May 18th, 2021, 7:42 pm
What catalysts do you suggest I try in manual searches? For example, I've been considering learning the following catalyst.

Code: Select all

x = 7, y = 7, rule = B3/S23
2b2o$2bo$4bo$5o$o$3b4o$3bo2bo!
Is that a good idea, or will it be a disappointment/time-waster?
This one is fairly easy to understand, and just uncommon enough that it's not worth using in brute force searches:

Code: Select all

x = 10, y = 8, rule = B3/S23
o4bo2b2o$bo2bobo2bo$2bo2b2obo$2bo4bo$2bo2b2o$bo3bo$o6bo$6b2o!
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Re: Results of catalyst tests

Post by MathAndCode » May 19th, 2021, 3:49 pm

hotdogPi wrote:
May 18th, 2021, 8:55 pm
That works with a simple table on table.
It also works with a boat.

Code: Select all

x = 4, y = 7, rule = B3/S23
2b2o$bobo$2bo2$2b2o$2obo$3bo!
Kazyan wrote:
May 18th, 2021, 9:06 pm
This one is fairly easy to understand, and just uncommon enough that it's not worth using in brute force searches:
It doesn't seem that niche.

Code: Select all

x = 16, y = 53, rule = B3/S23
2b2o$2bo6bo$4bo3bo$3b2o2bo$2bo4bo$bob2o2bo$o2bobo2bo$2o2bo4bo8$2b2o7b
o$2bo6bobo$4bo3bo$3b2o2bo3bo$2bo4bo3bo$bob2o2bo3bo$o2bobo2bo$2o2bo4bo
bo$11bo7$2b2o$2bo6bo$4bo3bo$3b2o2bo$2bo4bo$bob2o2bo$o2bobo2bo$2o2bo4b
4o8$2b2o6b3o$2bo6bo3bo$4bo3bo5bo$3b2o2bo7bo$2bo4bo7bo$bob2o2bo7bo$o2b
obo2bo5bo$2o2bo4bo!
Anyhow, I'll at least be able to use it when I see that exact phi spark predecessor, which isn't that uncommon, with some junk close behind.



Edit: Also, how do I detect this type of snake catalysis?

Code: Select all

x = 5, y = 12, rule = B3/S23
b2o2$3b2o2$ob2o$3o$bo2$2b2o$3bo$2bo$2b2o!
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wwei47
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Re: Results of catalyst tests

Post by wwei47 » May 19th, 2021, 8:06 pm

MathAndCode wrote:
May 19th, 2021, 3:49 pm
Edit: Also, how do I detect this type of snake catalysis?
I find that if one is a little less picky about trying snake catalyses, they will come across this one.
Help me find high-period c/2 technology!
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My c/2 tech collection: https://bit.ly/3qUJg0u
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Re: Results of catalyst tests

Post by MathAndCode » May 19th, 2021, 9:40 pm

wwei47 wrote:
May 19th, 2021, 8:06 pm
I find that if one is a little less picky about trying snake catalyses, they will come across this one.
Yes, but the snake used to be my frustrating time-waster, and I don't want to return to that state again.
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Re: Results of catalyst tests

Post by Entity Valkyrie 2 » May 19th, 2021, 11:02 pm

MathAndCode wrote:
May 19th, 2021, 9:40 pm
wwei47 wrote:
May 19th, 2021, 8:06 pm
I find that if one is a little less picky about trying snake catalyses, they will come across this one.
Yes, but the snake used to be my frustrating time-waster, and I don't want to return to that state again.
I usually test snake catalyses using an eater.
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Re: Results of catalyst tests

Post by MathAndCode » May 19th, 2021, 11:05 pm

Entity Valkyrie 2 wrote:
May 19th, 2021, 11:02 pm
I usually test snake catalyses using an eater.
Wouldn't that still fail most of the time?
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Re: Results of catalyst tests

Post by Entity Valkyrie 2 » May 20th, 2021, 7:08 am

MathAndCode wrote:
May 19th, 2021, 11:05 pm
Entity Valkyrie 2 wrote:
May 19th, 2021, 11:02 pm
I usually test snake catalyses using an eater.
Wouldn't that still fail most of the time?
It probably still would; I'm just used to using an eater instead of snake.
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Sphenocorona
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Re: Results of catalyst tests

Post by Sphenocorona » May 29th, 2021, 7:00 am

Half of Kazyan's beehive push catalyst can function as an HF catalyst when paired with an eater in a specific way. Here's an example:

Code: Select all

x = 45, y = 21, rule = B3/S23
7b2o28b2o$7bo29bo$5bobo27bobo$5b2o28b2o$bo29bo10bo$obo27bobo7b3o$obo
27bobo6bo$bo29bo7bob2o$38b2obobo$37bo6bo$38b7o2$40b3o$40bo2bo$42b2o$2b
3o27b3o$bo2bo26bo2bo$2b2o5b2o21b2o5b2o$9bobo27bobo$11bo29bo$11b2o28b2o
!
This allows for a flip-flop reflector thing with transparent output lanes and a minimum full cycle time of 108:

Code: Select all

x = 31, y = 43, rule = LifeHistory
13.4B$12.4B$11.4B$10.4B$.CB6.4B$2BC5.6B7.2A$3CB3.7B7.A$.4B2.9B2.BA.A$
2.15B.B2A$3.12BA3B7.A$4.10BABA2B5.3A$5.9BABA2B4.A$6.4B2.3BA3B4.A.2A$
7.4B2.7B2.2A.A.A$8.4B2.5B2.AB2.B2.A$9.11B.B7A$10.15B$4.2A5.11B.B3A$5.
A4.14BAB.A$5.A.AB.2B2D9B3.2A$6.2AB.BD2BD8B$8.4B2D3B2C4B$8.8BC2BCB.B2A
$3.2A3.9B2C2B.BA.A$3.A.BA14B4.A$4.3AB.11B5.2A$6.15B$2.7AB.11B$2.A2.B
2.BA2.5B2.4B$3.A.A.2A2.7B2.4B$4.2A.A4.3BA3B2.4B$7.A4.2BABA9B$4.3A5.2B
ABA10B$4.A7.3BA12B$10.2AB.15B$9.A.AB2.9B2.4B$9.A7.7B3.B3D$8.2A7.6B5.D
2B$18.4B6.BD$17.4B$16.4B$15.4B$14.4B!

hotdogPi
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Re: Results of catalyst tests

Post by hotdogPi » June 5th, 2021, 3:12 pm

Are there any stable catalysts for any of these four oscillator partials? Pictured are objects that work for a few generations only.

Code: Select all

x = 77, y = 200, rule = B3/S23
38b2o$37bobo$37bo$35b2ob4o$34bobobo2bo$34bobo$32b2o2bo$31bo4b2o$31b5o$
29b2o4bo6bo3bo$28bo2b2o11bo$28b2obo7b2o3bo$31bo6bo5bo$12b2obo15b2o6b4o
$4b2obo4bob2o24b2o$4bob2o8b2o$8b2o6bo$8bo8bo$9bo6b2o$8b2o2b2obo24b2o$
4b2obo4bob2o23b4o6b2o$4bob2o8b2o15bo3bo5bo6bo$2b2o12bo15bobo2bo3b2o7bo
b2o$2bo14bo14bobo2bo11b2o2bo$3bo12b2o13b2ob2o3bo6bo4b2o$2b2o8b2obo16bo
bo11b5o$4b2obo4bob2o16bobo9b2o4bo$4bob2o25bo11bo2b2o$45bobo$40bo2bobob
o$40b4ob2o$44bo$42bobo$42b2o18$42b2o6b2o$2b2o3b2o4b2obo25b2o6b2o$2b2o
3b2o4bob2o$17b2o31bo$2b2o3b2o8bo31bobo$2bobobobo9bo29bo3bobo$4bobo10b
2o29bo3bo$3b2obo6b2obo31bo3bo$7b2o4bob2o26bo5bobo$8bo2b2o24bo4bobo5bo$
7bo3bo24bobo2bo3bo$7b2o3bo23bobo2bo3bo$8bo2b2o22b2ob2obo3bo$7bo5b2obo
19bobo3bobo$7b2o4bob2o19bobo4bo$35b2ob2o$42b2o6b2o$42b2o6b2o25$62bo2$
63b3o$61b2o$68bo$60bobobo3bo$59b2obo$60bobobo$48b2o10b2o$57bo$57bo3bo$
42bo3bo14bo$41bobo2bo2bobo4bo6b2o$41bobo2bo9bo9b2o$4bob2o3b2o3b2o22b2o
b2o2bob3o$4b2obo3b2o3b2o23bobo3bo4bob2o14bo$2b2o37bobo5b4o15b4o$3bo7b
2o3b2o24bo7bo14b2obo4bo$2bo8bobobobo51b3obo2bo$2b2o9bobo37b2o9bo9bo$4b
ob2o4b2obo40b2o6bo4bobo2bo$4b2obo8b2o41bo14bo$8b2o7bo41bo3bo$9bo6bo46b
o$8bo7b2o41b2o10b2o$8b2o7bo38bobobo$4bob2o8bo41bob2o$4b2obo8b2o34bo3bo
bobo$52bo$58b2o$55b3o2$58bo31$55bo6bo$53b3o6b3o$52bo12bo$52b2o10b2o7$
43bo3b3o18b3o3bo$45b2o3bo16bo3b2o$45bo4bo16bo4bo$2b2obo6b2obo29b2o11b
2o11b2o$2bob2o6bob2o32b2o7bo2bo7b2o$2o4b2o2b2o4b2o29b2o9b2o9b2o$o5bo3b
o5bo$bo5bo3bo5bo$2o4b2o2b2o4b2o$2b2obo6b2obo$2bob2o6bob2o$2o4b2o8b2o$o
5bo9bo$bo5bo9bo$2o4b2o8b2o$2b2obo6b2obo$2bob2o6bob2o2$47b2o9b2o9b2o$
48b2o7bo2bo7b2o$41bo3b2o11b2o11b2o$40bobo2bo4bo16bo4bo$40bobo2b2o3bo
16bo3b2o$39b2ob2o3b3o18b3o3bo$40bobo$40bobo$41bo4$52b2o10b2o$52bo12bo$
53b3o6b3o$55bo6bo!
23 and 54 above are this basic reaction:

Code: Select all

x = 23, y = 9, rule = B3/S23
4b2o15b2o$4bo15bobo$bo3bo10bo3bo$bo2b2o10bo2b2o$3o12b3o$3o12b3o$3o12b
3o$bo14bo$bo14bo!
while 42 and 89 might be a bit trickier.
User:HotdogPi/My discoveries

Periods discovered: 5-16,⑱,⑳G,㉑G,㉒㉔㉕,㉗-㉛,㉜SG,㉞㉟㊱㊳㊵㊷㊹㊺㊽㊿,54G,55G,56,57G,60,62-66,68,70,73,74S,75,76S,80,84,88,90,96
100,02S,06,08,10,12,14G,16,17G,20,26G,28,38,47,48,54,56,72,74,80,92,96S
217,486,576

S: SKOP
G: gun

Sokwe
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Posts: 2643
Joined: July 9th, 2009, 2:44 pm

Re: Results of catalyst tests

Post by Sokwe » June 5th, 2021, 6:02 pm

hotdogPi wrote:
June 5th, 2021, 3:12 pm
Are there any stable catalysts for any of these four oscillator partials?
The p42 was solved several years ago using a p6 sparker.
hotdogPi wrote:
June 5th, 2021, 3:12 pm
23 and 54 above are this basic reaction:

Code: Select all

x = 23, y = 9, rule = B3/S23
4b2o15b2o$4bo15bobo$bo3bo10bo3bo$bo2b2o10bo2b2o$3o12b3o$3o12b3o$3o12b
3o$bo14bo$bo14bo!
Unfortunately, in each case the engine would almost certainly strike the still life a second time before it got back to the phase at which it was intended to interact, so the catalysis would need to be more complex than this simple reaction.
-Matthias Merzenich

User avatar
wwei47
Posts: 1648
Joined: February 18th, 2021, 11:18 am

Re: Results of catalyst tests

Post by wwei47 » June 10th, 2021, 9:32 am

Here's a periodic catalyst:

Code: Select all

x = 15, y = 13, rule = B3/S23
11b2obo$12b2o2$6bo3b2o$5bobo2b2o$3b3ob3o$2bo5bob2o$3b3o2bob2o$3o4bo$o
2bobobob3o$3bo2bobo2bo$4b2o2bo$8b2o!
Periodic nonsparker catalysts seem to be undersearched.
Help me find high-period c/2 technology!
My guide: https://bit.ly/3uJtzu9
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Overview of periods: https://bit.ly/3LwE0I5
Most wanted periods: 76,116

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