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Oscillator Discussion Thread

For discussion of specific patterns or specific families of patterns, both newly-discovered and well-known.

Re: Oscillator Discoveries Thread

Postby Dean Hickerson » January 14th, 2016, 8:34 pm

Freywa wrote:DRH's new p11 seems to be crying out for a name, even though it doesn't immediately resemble anything. I'm going to call it rattlesnake (11 letters and has a snake for a rock)...

I had tried to think of a good name, but didn't come up with anything, so "rattlesnake" is fine with me. Thanks for the suggestion.
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Re: Oscillator Discoveries Thread

Postby BlinkerSpawn » January 14th, 2016, 9:38 pm

[quote="Scorbie"
EDIT: 2) Ran the search with a TL which gave all the known TL hasslers I know. [/quote]
Have you tried it with pre-pulsars as opposed to singular TLs?
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Re: Oscillator Discoveries Thread

Postby Scorbie » January 14th, 2016, 9:51 pm

@BlinkerSpawn Actually, I was going to use that in my next search. I don't have high hopes, though.
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Re: Oscillator Discoveries Thread

Postby Sokwe » January 15th, 2016, 12:25 am

Scorbie wrote:Ran the search with a TL which gave all the known TL hasslers I know (The p36 and the p27) but didn't give any new ones.

Try Lumps of Muck, and maybe R-pentominos
-Matthias Merzenich
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Re: Oscillator Discoveries Thread

Postby Scorbie » January 15th, 2016, 5:59 am

Sokwe wrote:
Scorbie wrote:Ran the search with a TL which gave all the known TL hasslers I know (The p36 and the p27) but didn't give any new ones.

Try Lumps of Muck, and maybe R-pentominos
Thanks for the suggestions. I also thought they are good candidates, but I wasn't sure which positions would the Rs recover best among:
x = 38, y = 37, rule = B3/S23
34bo$7b2o25b2o$6b2o25b2o$2bo4bo$2b2o$b2o$33b2o$32b2o$33bo23$bo30b2o$b
2o28b2o$2o30bo$6b2o28bo$5b2o29b2o$6bo28b2o!
I guess I'll try them all.

(Pis seem to be a good option, too...)
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Re: Oscillator Discoveries Thread

Postby Bullet51 » January 18th, 2016, 1:41 am

Something similar to the rattlesnake. Not sure if anyone will work out a small p48 on it.
x = 13, y = 15, rule = B3/S23
6b2o$ob2obobo4bo$2obobo4b3o$6bo2bo$4bo4b2o3$4bo$2o3b2o$o2bobo2bo$2b2ob
obobo$6bo2b3o$7b2o3bo$9b3o$9bo!
Still drifting.
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Re: Oscillator Discoveries Thread

Postby Sokwe » January 18th, 2016, 4:10 am

Bullet51 wrote:Something similar to the rattlesnake. Not sure if anyone will work out a small p48 on it.

Here is a p48 based on an interaction by Noam Elkies:
x = 24, y = 25, rule = B3/S23
6bo3b2o$7b2ob2o$5bobo9b2o$6bo10bo$2o2b3o5bobo3b3o$2o9bob5o2bo$18bo$10b
ob4o2b2o$10bo5bobo2bo$6b2o3b2o2b2o3b2o$6bo2bobo5bo$8b2o2b5o$9bo13bo$7b
o2b5obo4b3o$7b3o3bo3bo2bo$10bo4bo4b2o$9b2o2$15bo$11b2o3b2o$11bo2bobo2b
o$13b2obobobo$14bobo2b2o$14bobo$15bo!

Minimization of the p12:
x = 13, y = 14, rule = B3/S23
6b2o$ob2obobo4bo$2obobo4b3o$6bo2bo$4bo4b2o3$4bo$2o3b2o$o2bobo2bo$2b2ob
obobo$3bobo2b2o$3bobo$4bo!

It turns out to be closely related to Buckingham's p13:
x = 25, y = 15, rule = B3/S23
4bo15bo$3bobo13bobo$3bobo13bobo$b3ob2o11b2ob3o$o23bo$b3ob2o11b2ob3o$3b
ob2o11b2obo$10bo3bo$11bobo$10b2ob2o$8bo2bobo2bo$7bobobobobobo$7b2o2bob
o2b2o$11bobo$12bo!
-Matthias Merzenich
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Re: Oscillator Discoveries Thread

Postby Scorbie » January 18th, 2016, 6:19 am

Sokwe wrote:It turns out to be closely related to Buckingham's p13:
Hmm! To summarize all the above, these three are closely related:
x = 66, y = 53, rule = B3/S23
3b2o4b2o12b2o5b2obo14b2o3b2obo$4bo5bo13bo5bob2o15bo3bob2o$3bo5bo13bo
10b2o12bo8b2o$3b2o4b2o12b2o9bo13b2o7bo$35bo22bo$3b2o4b2o12b2o9b2o12b2o
7b2o$4bo5bo13bo5b2obo15bo3b2obo$3bo5bo13bo6bob2o14bo4bob2o$3b2o4b2o12b
2o3b2o18b2o7b2o$28bo28bo$3b2o4b2o12b2o4bo18b2o8bo$4bo5bo13bo3b2o19bo7b
2o$3bo5bo13bo6b2obo14bo4b2obo$3b2o4b2o12b2o5bob2o14b2o3bob2o7$8b2o18b
2o$8bo13bob2obobo4bo$9bo12b2obobo4b3o$8b2o16b2o3bo$31b2o3$5b3o19b3o$5b
ob2o13b2o3bob2o$2obobobo14bo2bobobo$ob2obobobo14b2obobobo$6bo2b3o16bo
2b3o$7b2o3bo16b2o3bo$9b3o19b3o$9bo21bo4$45bo15bo$28b2o14bobo13bobo$22b
ob2obobo4bo9bobo13bobo$22b2obobo4b3o7b3ob2o11b2ob3o$26b2o3bo9bo23bo$
31b2o9b3ob2o11b2ob3o$44bob2o11b2obo2$27b3o20b3ob3o$22b2o3bob2o18b2obob
ob2o$22bo2bobobo20bobobobo$24b2obobobo16bobobobobobo$25bobo2b2o16b2o2b
obo2b2o$25bobo24bobo$26bo26bo!

Edit: Here's a p60 based on the period-quintupler variant:
x = 22, y = 25, rule = B3/S23
3bo$b3o$o3b2o$b3o2bo$3bobobob2o$4bo2bobo2bo$6b2o3b2o$8bo3$2b2o4bo$3bo
2bo3bo2bo$3o4bob5o$o$7b5o3b2o$6bo5bo2bo$7b2o2b2o3bo$5bobobo3b3obo$4bob
o2b3o5bo2bo$4bo2b2o4b2o2bobobo$3b2o4b3o5bo2bo$9bo2b4obo$12bo3bo$15bo$
15b2o!

EDIT2: And a p84:
x = 23, y = 26, rule = B3/S23
3bo$b3o$o3b2o$b3o2bo$3bobobob2o$4bo2bobo2bo$6b2o3b2o$8bo3$2b2o4bo$3bo
2bo3bo2bo$3o4bob5o$o$7b5o$6bo5bo$7b2o2b2o4b2o$2b2obobobo3b2o2bo$2bob2o
bob4o2bobo3b2o$8bo3bobobob2o2bo$9b3o4bobob2o$12b2obo$7b4o2bob3o$7bo2b
2o2bo6b2o$15b3obo2bo$17bob2o!

EDIT3: Bullet51's discovery means optimization for all oscillators in jslife-osc-supplement.zip that involves that bulky round-and-round p12. For instance, this one is p84.
x = 22, y = 33, rule = B3/S23
9b2o$9bo$2o4b2obo$o2b2o3bo$b2o2$b2o$obobo3b2o$o3b2o2b2o$b4o10b2o$15bo$
3b2o4b2obo3b3o$3bo5b2ob4o2bo$5bo10bo$4b2o3b5o2b2o$8bo5bobo2bo$4b2o3b2o
2b2o3b2o$4bo2bobo5bo$6b2o2b5o$7bo13bo$5bo2b5obo4b3o$5b3o3bo3bo2bo$8bo
4bo4b2o$7b2o2$13bo$9b2o3b2o$9bo2bob
o2bo$11b2obobobo$15bo2b3o$16b2o3bo$
18b3o$18bo!

I think this one might make a periodx10er:
x = 13, y = 11, rule = B3/S23
9b2o$8bobo$8bo$7b2o$4bo4b2o$2o2bob3o2bo$o7bobobo$b7o3bo$8b3o$3b2obobo$
3b2ob2o!
Best wishes to you, Scorbie
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Re: Oscillator Discoveries Thread

Postby Linicks » January 21st, 2016, 3:15 pm

This:

x = 15, y = 3, rule = B3/S23
7bo$2o11b2o$bo4b3o4bo!


becomes great. It starts on gen 73.

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Re: Oscillator Discoveries Thread

Postby Dean Hickerson » January 22nd, 2016, 1:10 am

Bullet51 wrote:Something similar to the rattlesnake.

Here's another p12 that's related; it has the same 1-bit spark as the rattlesnake:

x = 14, y = 15, rule = B3/S23
9b2o$9bo$2o2b2o4bo$o2bobo3b2o$bobo$2bobo$4bo$4bob2o$3b2obo2bo$3bo4bobo
$5b2obo$6bobob3o$6bo2bo3bo$7bobo2b2o$8bo!
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Re: Oscillator Discoveries Thread

Postby Bullet51 » January 24th, 2016, 8:57 am

A p12 weak sparker:
x = 17, y = 14, rule = B3/S23
9b2o$8bobo$b2o3b3o$bobobo3bo5bo$3bob2ob2o3b3o$2b2o8bo$5bob3o2bob2o$2b
2obo4bobo2bo$o2bobobob2o2bo$2o3bobo3bob2o$4b2obo3bobo2bo$4bo2bo3bo3b2o
$b2obo4bo$b2ob2o!
Still drifting.
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Re: Oscillator Discoveries Thread

Postby BlinkerSpawn » January 24th, 2016, 9:49 am

Bullet51 wrote:A p12 weak sparker:
x = 17, y = 14, rule = B3/S23
9b2o$8bobo$b2o3b3o$bobobo3bo5bo$3bob2ob2o3b3o$2b2o8bo$5bob3o2bob2o$2b
2obo4bobo2bo$o2bobobob2o2bo$2o3bobo3bob2o$4b2obo3bobo2bo$4bo2bo3bo3b2o
$b2obo4bo$b2ob2o!

Reduced:
x = 17, y = 13, rule = Life
5b2o$6bo$4bo4bo5bo$3bob5o3b3o$b3o8bo$o4bob3o2bob2o$b3obo4bobo2bo$3bobo
bob2o2bo$5bobo3bob2o$4bobobobo2bo2bo$4bo2bo3bo3b2o$b2obo$b2ob2o!
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Re: Oscillator Discoveries Thread

Postby Extrementhusiast » January 24th, 2016, 2:39 pm

BlinkerSpawn wrote:
Bullet51 wrote:A p12 weak sparker:
x = 17, y = 14, rule = B3/S23
9b2o$8bobo$b2o3b3o$bobobo3bo5bo$3bob2ob2o3b3o$2b2o8bo$5bob3o2bob2o$2b
2obo4bobo2bo$o2bobobob2o2bo$2o3bobo3bob2o$4b2obo3bobo2bo$4bo2bo3bo3b2o
$b2obo4bo$b2ob2o!

Reduced:
x = 17, y = 13, rule = Life
5b2o$6bo$4bo4bo5bo$3bob5o3b3o$b3o8bo$o4bob3o2bob2o$b3obo4bobo2bo$3bobo
bob2o2bo$5bobo3bob2o$4bobobobo2bo2bo$4bo2bo3bo3b2o$b2obo$b2ob2o!

Slightly smaller in bounding box, rotor size, and total population:
x = 16, y = 13, rule = B3/S23
6b2o$6bo$8bo5bo$4b5o3b3o$3bo7bo$bo2bob3o2bob2o$b2obo4bobo2bo$2bobobob
2o2bo$bo2bobo3bob2o$bobobobobo2bo2bo$2obo2bo3bo3b2o$3bo$3b2o!

This variant is one cell smaller in bounding box, but one cell larger in total population:
x = 16, y = 12, rule = B3/S23
11b2o$6bo3bo2bo$4b5o2b2o$3bo5b2o$bo2bob3o2b4o$b2obo4bobo2bo$2bobobob2o
2bo$bo2bobo3bob2o$bobobobobo2bo2bo$2obo2bo3bo3b2o$3bo$3b2o!
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Re: Oscillator Discoveries Thread

Postby Dean Hickerson » January 24th, 2016, 3:13 pm

Extrementhusiast wrote:This variant is one cell smaller in bounding box, but one cell larger in total population:
x = 16, y = 12, rule = B3/S23
11b2o$6bo3bo2bo$4b5o2b2o$3bo5b2o$bo2bob3o2b4o$b2obo4bobo2bo$2bobobob2o
2bo$bo2bobo3bob2o$bobobobobo2bo2bo$2obo2bo3bo3b2o$3bo$3b2o!

This is even smaller, 11x16 with population 54:

x = 16, y = 11, rule = B3/S23
2b2o3bob2o$2bo2b3obobo$3b2o6bo$6b3o2bob2o$3b2o4bobo2bo$2bobobob2o2bo$b
o2bobo3bob2o$bobobobobo2bo2bo$2obo2bo3bo3b2o$3bo$3b2o!
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Re: Oscillator Discoveries Thread

Postby Kazyan » January 27th, 2016, 9:28 pm

This is somewhat pedestrian as oscillators go, but it's much smaller than the previous record:

x = 37, y = 41, rule = B3/S23
14bo$14b3o$17bo$16b2o2$24b2o$24b2o8b2o$34b2o$20bo$19bobo$18bo2bo$19b2o
2$4bo$3bobo$4bo2$9bo$9b2o15b2o$2o3bo5bo15bobo$2o4b3o19b3o4b2o$7bobo15b
o5bo3b2o$9b2o15b2o$27bo2$32bo$31bobo$32bo2$16b2o$15bo2bo$15bobo$16bo$b
2o$b2o8b2o$11b2o2$19b2o$19bo$20b3o$22bo!


The lower-left and upper-right blocks are there for suppression; one of them could probably be replaced by something more complex to make it into a p87 gun. The previous smallest gun and oscillator of this period seem to be variants of this, from the Variable-Speed Firing Squad thread:

x = 70, y = 69, rule = B3/S23
30b2o$30bobo$32bo4b2o$28b4ob2o2bo2bo$28bo4bobobob2o$31bo3bobo$31bo5bo$
35b2o$31bobo$22b2o7bo$23bo7b2o2bo$23bobo$24b2o7bo3bo$33bo4bo$36b3o3$
50bo$50b3o$34b2o17bo$34bo17bobo$35b3o14bobo$37bo15bo5$55b3o10b2o$54bo
3bo9b2o$16bo36bo5bo$3b2o11b2o35bo5bo$4bo10bobo35b3ob3o$2bo45b2o$2b5o
14b2o24bobo$7bo13bo25bo$4b3o12bobo24b2o$3bo15b2o$3b4o$b2o3bo3b2o51b2ob
o$o2b3o4b2o51b2ob3o$2obo65bo$3bo59b2ob3o$3b2o57bo2b2o$61bobo$43bo16bob
ob2obo$11b2o30b3o8bo6bo2bob2o$12bo33bo6bo10bo$9b3o33b2o4bobo9b2o$9bo
43bo6bobo2b2o$50bobo7b2o2bo2bo$27b2o21bo14b2o$27bobo20bobo$27bo23b2o$
66b2o$66bo$64bobo$64b2o11$50b2o$50b2o!
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Re: Oscillator Discoveries Thread

Postby Sokwe » January 27th, 2016, 10:44 pm

Kazyan wrote:This is somewhat pedestrian as oscillators go

Not at all. In fact, I would go so far as to say it is one of the most clever and interesting oscillators to be discovered. The Pi -> R -> Pi reaction is unique, I think, in that it does not rely on any symmetry. The Pi and the R just happen to appear in exactly the right places. The solution to the conflicting block and eater is also very beautiful. It's lucky that there was even a working combination of two engines.
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Re: Oscillator Discoveries Thread

Postby BlinkerSpawn » January 27th, 2016, 11:51 pm

A 2-p87 non-exhaustive by-hand search found (left to right) a relatively large spark, 3 HF factories, a too-close R output and a glider + junk with a little (read: almost certainly not enough) room for catalysis.
x = 348, y = 87, rule = B3/S23
327b2o$313b2o12b2o$313b2o$333bo$332bobo$255b2o70b2o4bo$241b2o12b2o70bo
bo$241b2o84b3o$80b2o55b2o122bo$66b2o12b2o41b2o12b2o55b2o64bobo60b3o$
66b2o55b2o55b2o12b2o65bo61bo2bo$22b2o62bo56bo36b2o75bo54b2o$8b2o12b2o
61bobo54bobo55bo50bo4b2o54b2o10b3o$8b2o70b2o4bo50b2o4bo55bobo48bobo$
28bo51bobo56bo55bo4bo48b2obo93b2o$27bobo50b3o51bo4bo56bo53bob2o62b2o
28bo$28bo103b2o4bo51bo4b2o43b2o8bob4o59bo2bo25bobo$21b3o52b3o53b2o55bo
bo48b2o9bo3bo60bobo25b2o$23bo52bo2bo109b2o61b3o62bo19bo$19bo3bo41b2o
55b2o9b2ob2o51bobo61bo20b2o33b2o25bobo$18bo46b2o10b3o42b2o9b2ob2o41b2o
9b2ob2o49b2o28bo33bobo25bo2bo$18bo3bo112bo43b2o9bo3bo48bo2bo25bobo33bo
28b2o$7b2o10b3o77b2o55b2o33b3o50bobo25b2o33b2o$7b2o60b2o28bo26b2o28bo
56b2o30bo19bo$68bo2bo25bobo25bo2bo25bobo26b2o28bo23b2o25bobo61b3o10b2o
$41b2o26bobo25b2o27bobo25b2o26bo2bo25bobo22bobo25bo2bo73b2o$11b2o28bo
28bo19bo36bo19bo35bobo25b2o23bo28b2o61bo2bo$10bo2bo25bobo20b2o25bobo
27b2o25bobo35bo19bo30b2o20bo71b3o$11bobo25b2o20bobo25bo2bo25bobo25bo2b
o26b2o25bobo50b3o$12bo19bo28bo28b2o26bo28b2o26bobo25bo2bo48bo3bo9b2o
54b3o$4b2o25bobo26b2o55b2o56bo28b2o49b4obo8b2o54bobo$3bobo25bo2bo104bo
34b2o81b2obo60bo4b2o$3bo28b2o47b3o10b2o41b2ob2o9b2o42b3o60bob2o58bobo$
2b2o90b2o41b2ob2o9b2o41bo3bo9b2o48bobo60bo$81bo2bo109b2ob2o9b2o43b2o4b
o$36b2o44b3o56b2o54bobo53bo72b2o$23b3o10b2o98bo4b2o55b2o49bo76b2o$22bo
3bo51b3o54bo4bo56bobo48bobo$26bo51bobo54bo56b2o4bo50bo$21bo3bo48bo4b2o
50bo4b2o54bo$21bo51bobo54bobo55bo4bo60b2o68b2o$21b3o50bo56bo55bobo64b
2o68b2o$16bo171bo$15bobo61b2o55b2o181bo$16bo62b2o55b2o55b2o123bobo$
193b2o58b2o64bo$21b2o230b2o69b3o$21b2o54b2o54b2o189bo$77b2o16b2o36b2o
113bo75bo3bo$192b2o53bobo79bo$19b2o51bo55bo63b2o54bo4b2o70bo3bo$19b2o
16b2o32bobo53bobo122bo73b3o10b2o$72bo3b2o50bo4b2o52bo64bo4bo81b2o$14bo
63bo53bobo51bobo64bo4b2o$13bobo60b3o53b3o52bo4b2o64b2o45b2o$14bo3b2o
58bo2bo109bo114bo28b2o$20bo57bo3bo53b3o52bo4bo57b2ob2o9b2o36bobo25bo2b
o$18b3o58bobo53bo2bo53bo4b2o55b2ob2o9b2o37b2o25bobo$20bo2bo56bo11b2o
54b2o47b2o57bo58bo19bo$20bo3bo67b2o41b3o10b2o84b2o78bobo25b2o$21bobo
169b2ob2o9b2o26bo28b2o47bo2bo25bobo$22bo11b2o22b2o54b2o77b2ob2o9b2o26b
obo25bo2bo47b2o28bo$34b2o23bo28b2o25bo28b2o49bo40b2o25bobo78b2o$59bobo
25bo2bo24bobo25bo2bo26b2o69bo19bo$2o58b2o25bobo26b2o25bobo28bo28b2o38b
obo25b2o37b2o$bo28b2o36bo19bo35bo19bo29bobo25bo2bo36bo2bo25bobo36b2o
10b3o$bobo25bo2bo34bobo25b2o26bobo25b2o22b2o25bobo38b2o28bo47bo3bo$2b
2o25bobo34bo2bo25bobo24bo2bo25bobo29bo19bo69b2o46bo$10bo19bo36b2o28bo
25b2o28bo28bobo25b2o40bo69bo3bo$9bobo25b2o58b2o54b2o26bo2bo25bobo26b2o
9b2ob2o71bo$8bo2bo25bobo142b2o28bo26b2o9b2ob2o69b3o$9b2o28bo23b2o54b2o
10b3o78b2o117bo$39b2o22b2o11bo42b2o70bo57b2o79bobo$75bobo52bo2bo44b2o
9b2ob2o55b2o4bo75bo$5b2o67bo3bo51b3o45b2o9b2ob2o57bo4bo54b2o$5b2o11bo
56bo2bo177bo54b2o12b2o$17bobo58b3o53b3o51b2o64b2o4bo64b2o$16bo3bo57bo
55bobo51b2o4bo64bobo$17bo2bo58b2o3bo49b2o4bo49bo4bo64bo$20b3o60bobo53b
obo53bo44b2o$20bo63bo55bo52b2o4bo40b2o12b2o$21b2o3bo37b2o54b2o76bobo
53b2o$25bobo36b2o12b2o40b2o12b2o63bo$26bo51b2o54b2o43b2o$6b2o171b2o12b
2o$6b2o12b2o171b2o$20b2o!
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Re: Oscillator Discoveries Thread

Postby Kazyan » January 28th, 2016, 12:19 am

Sokwe wrote:Not at all. In fact, I would go so far as to say it is one of the most clever and interesting oscillators to be discovered. The Pi -> R -> Pi reaction is unique, I think, in that it does not rely on any symmetry. The Pi and the R just happen to appear in exactly the right places. The solution to the conflicting block and eater is also very beautiful. It's lucky that there was even a working combination of two engines.


Well, when you put it that way, thanks!

BlinkerSpawn wrote:A 2-p87 non-exhaustive by-hand search found (left to right) a relatively large spark, 3 HF factories, a too-close R output and a glider + junk with a little (read: almost certainly not enough) room for catalysis.
RLE


Nice. Let's skip forward: Apparently the eaters near the loaves just suppress B-heptomino precursors that otherwise just unsalvageably ruin everything--it wasn't clear from the CatForce result. These can be fiddled into Pi precursors instead, and then taking some inspiration from the p45 gun...it's easier to just post this:

x = 77, y = 51, rule = B3/S23
52bo$52b3o$55bo$54bo$54bo3bo$58bo3b2o$54bo7b2o8b2o$72b2o$60bo$54bo4bo
15bo$56b3o17bo$76bo$20b2o$6b2o3b3o6b2o20bo31bo$6b2o3bobo27bobo29b2o$
10bo15bo15bo29bo$10bo4b2o8bobo$13bob2o9bo38bo$9bo3b3o5b2o21b2o17bobo$
8bo2bo9b2o15b2o4b2o17b3o$8bo4b2o23b2o33b2o$9bobob2o32b3o17b2o4b2o$12bo
bo32bobo17b2o$13b3o31bo$13bobo$8b2o4b2o16b2o6bo29bo$7bo2bo21b2o4b2o29b
obo$6b2obo28bo31bo$7bo17b2o$7bobo14bob2o8bobo$8b2o21b2o5b2o14b3o$2b2o
9b2obo14bobo3b3o13bo4bo$bobo10b2o17bo18bo$bo29bob2o$2o28bo2bo15b2o7bo$
25b2o4b2o16b2o3bo$25bobo26bo3bo$25b3o30bo$26bobo28bo$26b2obobo26b3o$
26b2o4bo27bo$18b2o9bo2bo$18b2o5b3o3bo$14bo9b2obo$13bobo8b2o4bo$14bo15b
o$27bobo3b2o$19b2o6b3o3b2o$19b2o33bo$55bo$o52b3o!


It beats the existing p87 gun, but there's likely a smaller way to cram two of these together to do this.
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Re: Oscillator Discoveries Thread

Postby mniemiec » January 28th, 2016, 6:23 am

Kayzan wrote:This is somewhat pedestrian as oscillators go, but it's much smaller than the previous record: ...

Congratulations! Here is a 34-glider synthesis. It might possibly be done a bit more cheaply by making the R-pentomino or LOM phases, but none of the configurations I tried worked.
x = 277, y = 170, rule = B3/S23
106bobo45bo49bo49bo$106boo46b3o47b3o47b3o$107bo49bo49bo49bo$156boo48b
oo48boo$108b3o$108bo$109bo$$213bo46bo$212bo46bobo$209boob3o43bobbo$
208bobo48boo$210bo16$206bo$206bobo47boo$202b3oboo47bobbo$204bo50bobo$
203bo52bo$$107bo$108bo$106b3o$159boo48boo48boo$109bo49bo49bo49bo$109b
oo49b3o47b3o47b3o$108bobo51bo49bo49bo20$14bo39bo49bo49bo49bo49bo$14b3o
37b3o47b3o47b3o47b3o47b3o$17bo39bo49bo49bo37bo11bo49bo$16boo38boo48boo
48boo35bobo10boo48boo$194boo$$195bo49boo$195boo47bobbo$20bo39bo49bo49b
o33bobo13bo33bobbo12bo$19bobo37bobo47bobo47bobo47bobo33boo12bobo$18bo
bbo36bobbo46bobbo46bobbo46bobbo46bobbo$19boo38boo48boo48boo48boo48boo
$$27bo$27bobo27boo48boo48boo48boo48boo$18boo7boo27bobbo46bobbo17bo28bo
bbo46bobbo46bobbo$11bo6bobo36boo48boo17bo30boo48boo48boo$9bobo6bo103b
oobb3o38boo48boo48boo$10boo3boo71bo33bobo21boo19boo27boo19boo27boo19b
oo$14bobo69bobo33bo23boo48boo48boo$16bo70boo39boo$94bo33bobo38boo48boo
48boo$92bobo33bo19boo19boo27boo19boo27boo19boo$88b3obboo53boo48boo48b
oo$58boo30bo17boo48boo48boo48boo$57bobbo28bo17bobbo46bobbo46bobbo46bo
bbo$58boo48boo48boo48boo48boo3$16boo38boo48boo48boo48boo48boo$15bobbo
36bobbo46bobbo46bobbo46bobbo46bobbo$15bobo37bobo47bobo47bobo47bobo47bo
bo12boo$16bo39bo49bo49bo49bo13bobo33bo12bobbo$220boo47bobbo$221bo48boo
$$221boo$19boo38boo48boo48boo48boo10bobo35boo$19bo39bo49bo49bo49bo11bo
37bo$20b3o37b3o47b3o47b3o47b3o47b3o$22bo39bo49bo49bo49bo49bo11$211bo$
212boo$211boo$236bo$234boo$235boo4$14bo39bo49bo7bo41bo49bo49bo$14b3o
37b3o47b3o6bo40b3o47b3o47b3o$17bo39bo49bo3b3o43bo49bo20bo28bo$16boo38b
oo48boo7bo40boo48boo19bo28boo$114bo112b3o$114b3o47boo48boo48boo$5boo
157boo48boo48boo8boo$4bobbo266boo$o3bobbo12bo39bo49bo49bo49bo49bo$boo
bboo12bobo37bobo47bobo47bobo47bobo47bobo$oo16bobbo36bobbo46bobbo46bobb
o46bobbo46bobbo$19boo38boo48boo48boo48boo48boo$$44bo49bo49bo49bo49bo$
17boo24bobo11boo34bobo11boo34bobo11boo34bobo11boo34bobo$16bobbo24bo11b
obbo34bo11bobbo34bo11bobbo34bo11bobbo34bo$17boo38boo28bo19boo48boo48b
oo$27boo38boo16bobo29boo48boo48boo30bo$6boo19boo17boo19boo17boo8boo19b
oo27boo19boo27boo19boo30boo15boo$6boo38boo41boo5boo28bo13boo4boo42boo
4boo42boo3bo5bo15bobo$88bobo35bobo11boo33boo13boo33boo13boo4b3o19b3o4b
oo$29boo38boo19bo28boo5boo41boo4boo42boo4boo20bobo15bo5bo3boo$8boo19b
oo17boo19boo27boo19boo8boo17boo19boo27boo19boo28boo15boo$8boo38boo48b
oo29bobo16boo48boo67bo$18boo38boo48boo19bo28boo48boo$17bobbo36bobbo11b
o34bobbo11bo34bobbo11bo34bobbo11bo49bo$18boo38boo11bobo34boo11bobo34b
oo11bobo34boo11bobo47bobo$72bo49bo49bo49bo49bo$$16boo38boo48boo48boo
48boo48boo$15bobbo16boo18bobbo46bobbo46bobbo46bobbo46bobbo$15bobo12boo
bboo19bobo47bobo47bobo47bobo47bobo$16bo12bobbo3bo19bo49bo49bo49bo49bo$
29bobbo208boo$30boo119boo48boo38boo8boo$100b3o48boo48boo48boo$102bo84b
3o$19boo80bo7boo78bo19boo48boo$19bo83b3o3bo78bo20bo49bo$20b3o80bo6b3o
97b3o47b3o$22bo81bo7bo99bo49bo4$180boo$181boo$180bo$204boo$203boo$205b
o!
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Re: Oscillator Discoveries Thread

Postby Scorbie » January 31st, 2016, 8:12 am

Logged in just to say congrats! Wow! The two conduits were pretty miraculous (encountered by dedicated search and the ability to recognize it, by the way) but I can see a non-trivial job done there. I guess you've rubbed one half of that with a p3?
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Re: Oscillator Discoveries Thread

Postby Dean Hickerson » February 24th, 2016, 12:17 am

Has anyone seen this fairly small period 8 oscillator before?:

x = 14, y = 9, rule = B3/S23
3b2o$3bo2bo$4b2obo$7bo$2b6o$2bo3bo3b2o$3bo6bobo$3o4bo4bo$o11b2o!

It has a couple of sparks, but at first glance they don't seem to be good for anything that can't already be done by known p8 oscillators. E.g. here it deletes half of a p20 glider stream, in the same way that a blocker can:

x = 32, y = 21, rule = B3/S23
3b2o$3bo2bo$4b2obo$7bo6b3o$2b6o6bo$2bo3bo3b2o3bo$3bo6bobo$3o4bo4bo$o
11b2o5b3o$19bo$20bo3$24b3o$24bo$25bo3$29b3o$29bo$30bo!

This showed up in a drifter search; here it's created, with a larger stator, from a glider hitting a still life:

x = 14, y = 13, rule = B3/S23
11bo$bo9bobo$b3o7b2o$4bo$3bo$3b2o2b2o$o5bobo$5obo$4bob2o2b2o$2b2o6bobo
$2bo9bo$obo9b2o$2o!
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Re: Oscillator Discoveries Thread

Postby drc » February 24th, 2016, 4:49 pm

Dean Hickerson wrote:This showed up in a drifter search; here it's created, with a larger stator, from a glider hitting a still life:

x = 14, y = 13, rule = B3/S23
11bo$bo9bobo$b3o7b2o$4bo$3bo$3b2o2b2o$o5bobo$5obo$4bob2o2b2o$2b2o6bobo
$2bo9bo$obo9b2o$2o!


Does drifter work with non-totalistic rules and/or exploding rules?
This post was brought to you by the letter D, for dishes that Andrew J. Wade won't do. (Also Daniel, which happens to be me.)
Current rule interest: B2ce3-ir4a5y/S2-c3-y
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Re: Oscillator Discoveries Thread

Postby Dean Hickerson » February 24th, 2016, 11:49 pm

drc wrote:Does drifter work with non-totalistic rules and/or exploding rules?

In its current form, the program only works for totalistic rules and for David Bell's "Just Friends" rule, which is like B2/S12 except that birth only occurs if the 2 parents are not orthogonally adjacent. To handle other non-totalistic rules (with a 3x3 neighborhood), I think that you just need to modify the "nxgen" function appropriately. (But I wrote the program almost 20 years ago, so I don't remember all the details of how it works; it's possible that there are other things that would need to be changed.)

What do you mean by "exploding rules"? The program should work fine for rules like B2/S2345, which tend to expand in all directions, but leave behind mostly stable stuff. Any oscillators that it finds would work within that stuff, but there's no guarantee that a finite stator would exist.
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Re: Oscillator Discoveries Thread

Postby fsrm » March 4th, 2016, 8:00 am

I found a p4:
x = 29, y = 23, rule = B3/S23
14b2o$2bo11bo$2b3o6b2obo$5bo4bo2bo$4b2o4b3o2$6b3o4b2o$5bo2bo4bo$4bob2o
6b3o$4bo11bo$3b2o3$9b2o4b2o9b2o$9bo6bo9bo$6b2obo6bob2o3b2obo$2b2obo2bo
8bo2bobo2bo$o2bob3o10b3ob3o$2obo$3bo4b2o6b2o7b2o$3b2o3bo8bo7bo$9b3o2b
3o9b3o$11bo2bo13bo!
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Re: Oscillator Discoveries Thread

Postby fsrm » March 4th, 2016, 8:15 am

This p10 can be useful?
x = 13, y = 10, rule = B3/S23
2b2o2bo2b2o$2bo7bo$3b2o3b2o$o5bo5bo$6ob6o$4bo3bo$2b2o5b2o$2bo7bo$3bo5b
o$2b2o5b2o!
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