Thread for basic questions

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hotdogPi
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Re: Thread for basic questions

Post by hotdogPi » September 18th, 2021, 9:15 am

Qyz wrote:
September 18th, 2021, 7:35 am
How to identify an evolutionary sequence or methuselah, especially ones not in the lists of common/long-lived patterns (e.g. xp0_4q96)?
Is there somewhere to view the (common sequences/fewest cell predecessor) that contains a specific pattern(e.g. a snake/elevener)?
They're the ones labeled "1321" and "1103" here (which will have to be downloaded since it's not in the top 96). I imagine I'm missing a more common one, but I can't find it.
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Re: Thread for basic questions

Post by dvgrn » September 18th, 2021, 9:29 am

hotdogPi wrote:
September 18th, 2021, 9:15 am
Qyz wrote:
September 18th, 2021, 7:35 am
How to identify an evolutionary sequence or methuselah, especially ones not in the lists of common/long-lived patterns (e.g. xp0_4q96)?
Is there somewhere to view the (common sequences/fewest cell predecessor) that contains a specific pattern(e.g. a snake/elevener)?
They're the ones labeled "1321" and "1103" here (which will have to be downloaded since it's not in the top 96). I imagine I'm missing a more common one, but I can't find it.
MathAndCode has been doing quite a bit of work in a dedicated thread for this kind of thing also.

If "xp0_4q96" were written in RLE instead of apgcode form, it would be easier to go see if it's in one of these places. Why use nonstandard apgcodes? Or at least, why use them without linking to Catagolue like this so it's easy to see what they are?

The very rough measure I've been using for commonness of evolutionary sequences is the number of hits in the octohash database. This loaf-plus-a-bit 2bo$bobo$o2bo$b2o$bo! object is moderately common, since it shows up twenty times in octohash results:

Code: Select all

x = 654, y = 13, rule = B3/S23
2bo37b2o31b2o32bo32bo24bo32b2o27bo34bo31bo31bo31bo31bo30b2o30b2o30bo
31bo34bo27b3o31bo36b3o$bobo36bo32bobo30bobo22b2o6bobo22bobo31bobo25bob
o32bobo29bobo29bobo29bobo29bobo30bo31bo30b3o29b3o31bobo30b2o28bo32b2o
2bo$o2bo30bo6b3o23bo6bo30bo2bo21bo2bo4bobo23bobo32b2o25bo2bo30bo2bo28b
o2bo28bo2bo28bo2bo28bo2bo30bobo29bobo31bo31bo29bo2bo30bobo27bo31bo2bo
2bo$b2o31b3o6bo22bobo37b2o23bobo4b2o25bo61b2o32b2o30b2o30b2o30b2o30b2o
32b2o30b2o30b2o30b2o30b2o31bo31b3o28b2o$bo35bo28bobo63bo63b2o221b2o30b
2o30b2o5b2o23b2o5b3o54b2o30bo4bo$36b2o3b2o24bo2b3o67bo26b2o26bo2bo31bo
27b2o30b2o30bo31bo32bo30bo2bo3b2o23bo2bo3b3o22bo2bo4bobo21bo2bo4bo25b
2o28bobo29bobo4bo26bo$41bobo26bo68b2o22bo2b2o27bobo31bobo27bo31bo30b3o
29b3o29bobo29bobo4bobo22bobo4bo24bobo5bo23bobo6bo23bo2bo27b2o31bo32bo$
41bo29bo67bobo20bobo3bo27bo32bobo27bobo29bobo31bo31bo28bobo30bo5bo25bo
6bo24bo31bo31bobo94bo$100b2o61b2o65bo29b2o30b2o30b2o30b2o29bo160bo$99b
obo2b2o88b2o131b2o30b3o$98bobo2b2o89bobo33b2o30b2o30b3o30bobo29bo26b2o
158b2o$99bo5bo88bo35bobo29bobo29bo32bo32bo25bobo157bobo$230bo31bo32bo
90bo159bo!
By comparison, generation 30 of the pattern shows up 94 times in the database:

Code: Select all

x = 3019, y = 15, rule = B3/S23
2bo5bo32b2o31bo25bo35b2o30bo32b2o24b2o3b2o24bo39b2o23b2o30b2o30b2o35b
2o31b2o30b2o30b2o31b2o23bo30b2o30b2o38bo31bo32bo31bo23b2o6bo23bo38b2o
31b2o33b3o27bo30bo29b2o32b2o29b2o30b2o31bo32bo30b2o31bo30b2o31bo30b2o
30b2o31bo23b2o30b2o29b2o2b3o26bo32bo29b2o2b3o28b2o30bo27bo32b2o30bo34b
o31bo31bo31bo31bo30b2o30b2o30bo31bo29bo35bo32bo31bo31bo25b2o36bo31b2o
30bo32b2o23bo5b2o27bo4bo30bo24b3o31b2o30b3o2bo26b3o29b3o31bo29b2o33bo
33b3o26bo32b3o28b3o30bo31b2o31b2o29b2o31b3o$b3o3b3o31bobo29bobo23bobo
35bo30b3o30bobo22bo2bo3bo24b3o5b2o30b2o22bo2bo28bo2bo28bo2bo34bo32bobo
28bo2bo28bo2bo29bobo22bobo30bo30bobo36bobo29bobo30bobo29bobo21bo2bo4bo
bo21bobo5b2o24b2o3bo2bo22b2o6b2o29b2o2bo28bobo28bobo28bobo31b2o28bo2bo
29bobo29bobo22b2o6bobo28bo2bo29bobo28bo2bo29bobo28bo2bo28bo2bo29bobo
23bo30bobo27bo2bobo27bobo30bobo27bo2bobo30bobo28bobo26b3o3b2o24bo2bo
28bobo32bobo29bobo29bobo29bobo29bobo30bo31bo30b3o29b3o26bobo33bobo30bo
bo29bobo29bobo24bo36bobob3o25bobo29bobo30bobo23bo4bo2bo24b3o4bo29bobo
27b3o26bobo34b2o30b2o30b3o27bo28bo2bo31bobo28b2o2bo27bobo66b3o26bo30bo
bo30bobo28bo2bo25bo$o3bobo3bo31b2o30b2o22bo2bo35bobo31bo30bo24bobo3bob
o25bo4bo2b2o20bo31bobo3b2o24bobo4b2o23bobo28bo6b3o23bo6bo30b2o24b2o3bo
bo24bo5bo24bo2bo29bobo30bo35bo2bo28bo2bo29bo2bo28bo2bo22bobo3bobo22bo
2bo3bo2bo24bo3bobo22bo2bo35bo2bo2bo20bo6bobo29b2o30bo61bo2bo30b2o30b2o
21bo2bo4bobo22bo7b2o22b2o5bobo30b2o29bo2bo29b2o30b2o2b2o25bobo21b3o32b
2o2b2o24b2o3bo26bo2bo29bobo27bobo3bo30b2o29bo30bob2o26bobo28bo2bo30bo
2bo28bo2bo28bo2bo28bo2bo28bo2bo30bobo29bobo31bo31bo26b2o32bo2bo29bo2bo
28bo2bo30b2o25b3o33b2o2bo27b2o2b3o24bo2bo30bo25bo4bobo24bo7bo23bo5b2o
28bo28bo36bobo29bobo29bo29bo29b2o2b2o29bo28bo2bo2bo25bo2bo28bo31bo5bo
28bo26bo3b2o31bo26bo3bobo25bobo$2ob2ob2ob2o88b2o37b2o30b2o56bo5b2o24b
2o2bobo2bobo18bobo7bo23bo3bo2bo24bo4bobo24bo4b2o23b3o6bo22bobo30bo30bo
2bo3bo24bobo3b2o25b2o31b2o30b2o35b2o30b2o31b2o30b2o24bo4b2o2b2o20b2o4b
obo22b3o5bo24bobo7bo22b2o4b2o23bobo6bo22bo39b2o32bo28b2o2b3o82bobo4b2o
22bobo29bo2bo4b2o2b2o19b2o38b2o66bobo24b2o2b2o18bo37b2o58b2o31bo29bo
96b2o3bo26bo30b2o32b2o30b2o30b2o30b2o30b2o32b2o30b2o30b2o30b2o61b2o31b
2o30b2o60bo38bo30bo27b2o30b2o31bo25b2o30bo36bo26b2o2b3o63bo32bo30b3o
29bobo58b2o30b2o28bobo29bobo5bo54bo35b2o2b3o21bo4bo26bobo$41bo31bo129b
3o58b2o3bo21b2o6b2o28bobo29bo3b3o25bobo25bo28bobo29bobo3bo25bobo29bobo
37b2o29bo31b2o23b2o137bobo26bo23bo33bo7b2o23bo29bobo28bobo8bo21b2o31bo
7b2o32bo85bo29bobo2b2o26bobo8bobo17bo2bo7bo23bo73bo30bobo21b2o26b2o6bo
153b2o29bo287b2o30b2o30b2o5b2o23b2o5b3o151bo103bo86b2o32b2o27bo67bo60b
2o30b2o30bo4bo31bo25b3o61bo32bobo28bo2bo31bo28bo39bo23bo32bo$40b2o30b
2o63bo31bo33bo29bo65bobo28bo29b2o3bo28b2o24b2o3b2o24bo2b3o26bo3b2o26bo
31bo37bobo23bo4bobo24bo4bo2bo22bobo30b2o104bo55b3o36bobo19b3o31bo29bob
o7b2o20bo2bo4bo24bobo6bobo20b2o10bo92bo22bo2b2o28bo9bo19bo2bo6b2o21b3o
4bo89bo9bo22b2o27b2o32b2o65b2o29bo28bo2bo27bobo65b2o30bo27b2o30b2o30bo
31bo32bo30bo2bo3b2o23bo2bo3b3o22bo2bo4bobo21bo2bo4bo29bo25b2o32b2o61bo
bo63bo31bo30b2o61bobo31bobo59b2o34bo58bobo29bo2bo28bobo4bo88bo31bo33bo
30b2o30b3o60b3o6bo$36bo3bobo25bo3bobo61b2o30b2o34bo27b2o132bo58bobo26b
o32bobo95b2o23b2o4bo2bo22b2o4bobo24bobo28bo2bo66b2o65b3o23bo60bo64bo8b
obo20bobo3b2o23bo2bo28bo2bo28b2o30b2o39b2o27bo58b2o7bobo19bo6b2o23b2o
31b2o30bobo28b2o3bo59bo2bo28b2o30bo2b2o29bobo27bobo28bo2bob3o28b2o29bo
bo29bobo27bo31bo30b3o29b3o29bobo29bobo4bobo22bobo4bo24bobo5bo23bobo6bo
26b3o25bobo30bo2bo29bo29bo2bo33b2o2b3o21b3o29b3o31bo34b2o25bo33bo29b2o
29bo2bo61b2o29b2o30bobo30bo30bo34b2o27bo31bo95bo32b3o61b2o31b3o$35bobo
29bobo36bo25bo3bobo25bo3bobo24bo36bobo95b2o61bo31bo29bo58b2o32b2o60bob
o4b2o23bobo4bo26bo2b3o24bobo66b2o66bo26bo91b2o64bo4bobo23b2o29bobo29bo
bo29bobo38bobo116b2o5bobo22bobo29bobo29bo2bo28b2o63bobo28bo2bob3o24bob
o3bo29bo29bo30b2o2bo29bobo28bobo30bobo27bobo29bobo31bo31bo28bobo30bo5b
o25bo6bo24bo31bo33bo4b3o22bobo29bobo29bobo29b2o2b3o29bobobo22bo31bo31b
3o34b2o89b2o30bobo61bobo62bo62bo34bobo26bo63b2o62b2o31bo63bobo30bo$34b
o2bo28bo2bo35bobo23bobo29bobo28bobo133bobo59b2o120bobo31bobo36b3o89bo
27bo2b2o28b2o30b2o3bo66bo117bobo126bo31bo2b2o27bo2b2o187bo2b2o26b2o31b
2o95bo30b2o2bo27b2o99bo28b2o30bo32bo29b2o30b2o30b2o30b2o29bo161b2o3bo
25bo31bo30b2o34bo32bo3bo21b2o30b2o30bo33b2o3bo90bo30bo30b3o30bo126bo
34bo61b2o29bobo64b2o29bo62bo33bo$3bo3bo27b2o30b2o35bobo23bo2bo28bo2bo
29bobo132bo61bobo119bo33bo38bo92bo29bobo26bobo2b2o25bobo188bo163bobo
29bobo189bobo191bo89b2o99b3o125b2o30b3o193bo26b2o96bo124b3o27bobo413bo
bo28bo66bobo$3bo3bo96b2o25b2o30b2o31b2o390bo121bo27bobo2b2o25bobo353bo
31bo191bo283bobo98bo30b2o30b2o30b3o30bobo29bo26b2o194bobo25b2o31bo161b
o29bo415bo97bo$3bo3bo731bo5bo25bo862bo101bo29bobo29bobo29bo32bo32bo25b
obo193bo27bobo29b2o162bo27b2o$106b2o1658bo31bo32bo90bo223bo31bobo$106b
obo$106bo!
So descendants of 2bo$bobo$o2bo$b2o$bo! must have a lot of other ancestors that evolve into some later common bottleneck point, like maybe generation 9 of 2bo$bobo$o2bo$b2o$bo!

Code: Select all

x = 9, y = 4, rule = B3/S23
2bo3bo$bob3obo$o2b3o2bo$b2o3b2o!
#C [[ THUMBNAIL THUMBSIZE 3 ]]
You can analyze the above octohash results and see how much variety there is in 2bo$bobo$o2bo$b2o$bo!'s immediate ancestors -- maybe there's another low-population bottleneck that can be collected from that stamp collection.

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calcyman
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Re: Thread for basic questions

Post by calcyman » September 18th, 2021, 9:46 am

GUYTU6J wrote:
September 18th, 2021, 1:06 am
What edgy H-to-spark conduits do we have? For my purpose I need a dot spark but not a banana spark; the standard beehive SW-2 almost works if it were cleaner at the NE corner.

Code: Select all

x = 13, y = 14, rule = LifeHistory
6.D6$11.A$10.A.A$10.A.A$11.A$A$A.A$3A$2.A!
Is this one (by Brice Due) good enough? The dot spark forms in generation 75, and it's the only thing ever in the rightmost column.

Code: Select all

x = 30, y = 28, rule = LifeHistory
14.2A$15.A$15.A.AB$16.2AB.2B$18.5B$6.A11.6B$5.A.A8.10B$5.A.A5.15B$3.
3A.2A3.16B$2.A4.B5.16B$3.3AB2AB3.16B$5.A.2AB.3B.14BD$9.20B$9.20B$10.
18B$9.16B$7.17B$5.19B$5.2BC15B$4.3BCBC12B$5.2B3C4B2.6B$4.5BC4B3.6B$4.
9B5.5B$2.4B13.4B$2.2A14.B2A2B$3.A15.2A$3A$A!
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Re: Thread for basic questions

Post by dvgrn » September 18th, 2021, 10:03 am

calcyman wrote:
September 18th, 2021, 9:46 am
Is this one (by Brice Due) good enough? The dot spark forms in generation 75, and it's the only thing ever in the rightmost column.
... Hey, what's that eater2 doing in there? It's just doing a fishhook's job:

Code: Select all

x = 30, y = 28, rule = LifeHistory
14.2A$15.A$15.A.AB$16.2AB.2B$18.5B$18.6B$16.10B$13.15B$5.2A5.16B$6.A
6.16B$6.A.AB3.16B$7.2AB.3B.14BD$9.20B$9.20B$10.18B$9.16B$7.17B$5.19B$
5.2BC15B$4.3BCBC12B$5.2B3C4B2.6B$4.5BC4B3.6B$4.9B5.5B$2.4B13.4B$2.2A
14.B2A2B$3.A15.2A$3A$A!

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Re: Thread for basic questions

Post by Qyz » September 18th, 2021, 10:32 am

Thanks for your links and detailed instructions.

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Re: Thread for basic questions

Post by GUYTU6J » September 18th, 2021, 11:17 am

dvgrn wrote:
September 18th, 2021, 10:03 am
calcyman wrote:
September 18th, 2021, 9:46 am
Is this one (by Brice Due) good enough? The dot spark forms in generation 75, and it's the only thing ever in the rightmost column.
... Hey, what's that eater2 doing in there? It's just doing a fishhook's job:

Code: Select all

x = 30, y = 28, rule = LifeHistory
14.2A$15.A$15.A.AB$16.2AB.2B$18.5B$18.6B$16.10B$13.15B$5.2A5.16B$6.A
6.16B$6.A.AB3.16B$7.2AB.3B.14BD$9.20B$9.20B$10.18B$9.16B$7.17B$5.19B$
5.2BC15B$4.3BCBC12B$5.2B3C4B2.6B$4.5BC4B3.6B$4.9B5.5B$2.4B13.4B$2.2A
14.B2A2B$3.A15.2A$3A$A!
Well, unfortunately, the junk surrounding that dot spark does not back off quickly enough. To be more specific, I was trying to turn a particular block great-grandparent to a glider, and so diagonal clearance is imporant as well as orthogonal clearance. Generation 93 of that conduit gives another dot that later liberates the glider successfully, but the active region will hit the source of said block predecessor earlier.

Code: Select all

x = 32, y = 28, rule = LifeHistory
14.2A$15.A$15.A.AB$16.2AB.2B$18.5B7.A$18.6B5.A$16.10B3.A$13.11B2ABC2.
2A$5.2A5.10BABA3B$6.A6.8BABABABAB$6.A.AB3.12B2A2B$7.2AB.3B.6B2A2BA4B$
9.14BABA3B$9.15BA4B$10.18B$9.16B$7.17B$5.19B$5.2BD15B$4.3BDBD12B$5.2B
3D4B2.6B$4.5BD4B3.6B$4.9B5.5B$2.4B13.4B$2.2A14.B2A2B$3.A15.2A$3A$A!
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calcyman
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Re: Thread for basic questions

Post by calcyman » September 18th, 2021, 11:47 am

GUYTU6J wrote:
September 18th, 2021, 11:17 am
Well, unfortunately, the junk surrounding that dot spark does not back off quickly enough. To be more specific, I was trying to turn a particular block great-grandparent to a glider, and so diagonal clearance is imporant as well as orthogonal clearance. Generation 93 of that conduit gives another dot that later liberates the glider successfully, but the active region will hit the source of said block predecessor earlier.

Code: Select all

x = 32, y = 28, rule = LifeHistory
14.2A$15.A$15.A.AB$16.2AB.2B$18.5B7.A$18.6B5.A$16.10B3.A$13.11B2ABC2.
2A$5.2A5.10BABA3B$6.A6.8BABABABAB$6.A.AB3.12B2A2B$7.2AB.3B.6B2A2BA4B$
9.14BABA3B$9.15BA4B$10.18B$9.16B$7.17B$5.19B$5.2BD15B$4.3BDBD12B$5.2B
3D4B2.6B$4.5BD4B3.6B$4.9B5.5B$2.4B13.4B$2.2A14.B2A2B$3.A15.2A$3A$A!
That information helps a lot (in that the dot spark doesn't need to be isolated). Is this (also Brice Due) compatible with your block source?

Code: Select all

x = 23, y = 21, rule = LifeHistory
14.2A$14.A$11.BA.A$8.B.BA.A$7.2A3BA$7.2AB.7B$8.B3.6B$10.10BA$9.9B2ABA
$7.8BA6BA$5.16BA$5.2BC12B$4.3BCBC4BA4BA$5.2B3C4B.3BA$4.5BC4B3.A$4.9B$
2.4B12.2A$2.2A13.A2.A$3.A13.A$3A$A!
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Re: Thread for basic questions

Post by dvgrn » September 18th, 2021, 11:58 am

GUYTU6J wrote:
September 18th, 2021, 11:17 am
... but the active region will hit the source of said block predecessor earlier.
Maybe post the "source of said block predecessor", then? Otherwise I have to make one up for testing purposes, but really I have no idea if I've got one that's compatible with your intended use.

An unsuppressed Fx119 has a very good dot spark hiding in it -- maybe this will be good enough until something better comes along:

Code: Select all

x = 41, y = 63, rule = LifeHistory
12.C$12.B2C$12.2C8$9.4B$10.4B$8.A2.4B$8.3A.4B$11.A.4B$10.A.A5B$10.BA
2B.4B$11.2B3.4B$12.2B3.4B$11.B2AB3.4B$12.2A5.4B$17.7B$15.9B$14.11B$
15.13B11.A$15.14B9.A.A$14.16B9.2A$13.17B5.2A$13.18B4.C.A$12.19B3.D.A$
12.20B2.D$13.19BC2.2D$11.21B$11.21B$11.19B$12.17B$11.18B$9.20B$7.21B$
7.2BC18B$6.3BCBC14B$7.2B3C13B$6.5BC13B$5.20B$4.4B4.13B$4.3B4.4B4.6B$
2.4B4.4B5.7B$2.2A5.B2AB6.6B$3.A4.3BA6.6B$3A4.B3A7.6B$A5.2BAB7.8B$8.B
9.6B$18.7B$16.11B$14.B.2B2A9B$13.2A3B2A9B$13.2A14B$14.14B$12.5B2.B2.
2B.3B$12.2A4.3B5.2A$13.A3.B2AB5.A$10.3A5.2A7.3A$10.A18.A!
There are quite a few good sparkers among standard conduits, but I don't think they've ever been organized into a stamp collection for that purpose. For example, a beehive stopper has a substantial spark -- don't know what it's called, it's a "beehive-with-one-cell-missing-but-not-a-phi-spark" spark -- and there's a domino spark in NE25T239 (the kind that shows up one cell at a time, though) on one side, and a pipsquirter spark on the other side... and so on. Were there maybe some Bandersnatch variants made that had good side sparks?

A new thread for collecting such things would be welcome. There are a lot of Herschel-to-nothing converters out there, so once there's a thread to keep them in, some really good sparky ones should eventually gather there.

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Re: Thread for basic questions

Post by pzq_alex » September 19th, 2021, 9:49 am

Reposting this
pzq_alex wrote:
September 13th, 2021, 6:38 am

Code: Select all

pzq@ubuntu:/pzq/golly-4.0-gtk-64bit$ sudo ./golly
./golly: error while loading shared libraries: libpng12.so.0: cannot open shared object file: No such file or directory

What happened?

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ihatecorderships
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Location: Falls Church, VA

Re: Thread for basic questions

Post by ihatecorderships » September 21st, 2021, 6:05 pm

When I search up c/10 in the forums, it ignores the c and the /, so I get all results with 10 in it. How could I make sure c and / are included?

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Ian07
Posts: 713
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Re: Thread for basic questions

Post by Ian07 » September 22nd, 2021, 6:33 pm

ihatecorderships wrote:
September 21st, 2021, 6:05 pm
When I search up c/10 in the forums, it ignores the c and the /, so I get all results with 10 in it. How could I make sure c and / are included?
I'd suggest using something other than phpBB itself - here's an example query for Google: "c 10" site:conwaylife.com/forums. Other search engines probably have their own version of this, if you prefer. Note that I replaced the slash with a space, because even Google doesn't like searching for punctuation, but it's still much more versatile than phpBB's search engine.
Wiki: http://www.conwaylife.com/wiki/User:Ian07
Discord: Ian07#6028

xs24_69bobjob96

(Disclaimer: not involved in the creation or trading of NFTs via Catagolue)

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Tropylium
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Location: Finland

Re: Thread for basic questions

Post by Tropylium » September 23rd, 2021, 7:58 am

pcallahan wrote:
July 8th, 2021, 1:18 pm
Has anyone ever done an enumeration of still lifes with a specific topology?
I did a start at this years ago, though it's not strictly cell-topological as much as component-topological, and done only up to a modest 13 cells:
User:Tropylium/Table_of_still_lifes_by_type
including a grammar of "strings" which covers the small loops and most small "snake-like" topologies:
User:Tropylium/Fuse

This grammar covers most snake-like topologies without hairpin turns I think, though there's also at least one type of turn that can be done by using instead the still life's own end as an internal induction coil:

Code: Select all

x = 13, y = 15, rule = B3/S23
7b2o$6bo2bo$5bo2bo$4bo4b3o$3bo8bo$2bo6b3o$bo6bo$o5bo2bo$b3obob2o$3bobo
$5bo$4bo$3bo$obo$2o!
so a still life with "snake-like topology" can have at most two of these turns.

From 12 cells up, there would be also "snake-like topologies" that have a region of lake / semilake texture ("waterfront"?) stabilized by an ending that seems to be called a "feather" these days. This shows the two smallest still lifes in the series and a larger example:

Code: Select all

x = 22, y = 21, rule = B3/S23
2o8bo$obo6bobo$3bo5bo2bo$b2o4b2o2b2o5b2o$o5bo11bobo$bobo3bobo11bo$2b2o
4b2o9b2o$18bo$18bo$8b2o9b2o$8bobo10bo$11bo9bo$9b2o8b2o$8bo9bo$8bo10b2o
$9b2o4bo5bo$11bo2bobo4bo$11bo2bobo2b2o$12b2o2bobo$16bobo$17bo!
The two grammars can be eventually also linked to one another in at least one fashion; the smallest still life that arguably accomplishes this is the big S.

Code: Select all

x = 13, y = 22, rule = B3/S23
10b2o$10bobo$12bo$8b4o$7bo$8b2o$10bo$10bo$8b2o$7bo$7bo$8b2o$10bo$6b4o$
5bo$5bobo$6bobo$obo5bo$2obo3bo$3bo2bo$3bobo$4bo!
There might be more complex connections to be found that e.g. again require a tail as an additional internal induction coil.

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C28
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Location: minus world

Re: Thread for basic questions

Post by C28 » September 26th, 2021, 11:51 am

how do i support this U-turner based partial with snarks?

Code: Select all

x = 75, y = 69, rule = B3/S23
o$b2o$2o20$50bo$50b3o$53bo$52b2o2$55b2o$54bobo$42b2o10b2o$42bobo$43bo
14$49bo$49bo$48bo3$50b3o$50b3o$49bobo$49b2o6$55bo$54bobo$43b2o10b2o$42b
obo$42b2o29bo$72b2o$45b2o25bobo$45bo$46b3o$48bo!

Code: Select all

x = 11, y = 15, rule = B3/S23
9bo$8bobo$8bobo$9bo8$b3o$b3o$obo$2o!
can we make a (13,4)c/41 spaceship?

hotdogPi
Posts: 521
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Re: Thread for basic questions

Post by hotdogPi » September 26th, 2021, 12:33 pm

C28 wrote:
September 26th, 2021, 11:51 am
how do i support this U-turner based partial with snarks?

Code: Select all

x = 75, y = 69, rule = B3/S23
o$b2o$2o20$50bo$50b3o$53bo$52b2o2$55b2o$54bobo$42b2o10b2o$42bobo$43bo
14$49bo$49bo$48bo3$50b3o$50b3o$49bobo$49b2o6$55bo$54bobo$43b2o10b2o$42b
obo$42b2o29bo$72b2o$45b2o25bobo$45bo$46b3o$48bo!
It's p196, but such a spark would have to be p49, p98, or p196. (28 doesn't work.) The p196 pi hassler would be unlikely to work because it's not really a sparker, and it's also a diagonal pattern. A p196 (not 49 or 98) block factory will work, but I don't know if any exist.

The simplest way to get this to work is to reflect the emitted gliders, but that makes it only an oscillator, not a gun.
User:HotdogPi/My discoveries

Periods discovered: 6,8,10-16,18,20,21G,22,24,25,27-31,32SG,35,36,40,42,45,48,50,54G,55G,57G,60,63-66,70,74S,75,76S,84,96S,100,117G,120,126,128S,138,147,156,196S,217,486,576

S: SKOP
G: gun

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C28
Posts: 239
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Location: minus world

Re: Thread for basic questions

Post by C28 » September 26th, 2021, 12:38 pm

hotdogPi wrote:
September 26th, 2021, 12:33 pm
C28 wrote:
September 26th, 2021, 11:51 am
how do i support this U-turner based partial with snarks?

Code: Select all

x = 75, y = 69, rule = B3/S23
o$b2o$2o20$50bo$50b3o$53bo$52b2o2$55b2o$54bobo$42b2o10b2o$42bobo$43bo
14$49bo$49bo$48bo3$50b3o$50b3o$49bobo$49b2o6$55bo$54bobo$43b2o10b2o$42b
obo$42b2o29bo$72b2o$45b2o25bobo$45bo$46b3o$48bo!
It's p196, but such a spark would have to be p49, p98, or p196. (28 doesn't work.) The p196 pi hassler would be unlikely to work because it's not really a sparker, and it's also a diagonal pattern. A p196 (not 49 or 98) block factory will work, but I don't know if any exist.

The simplest way to get this to work is to reflect the emitted gliders, but that makes it only an oscillator, not a gun.
i said "snarks" not "sparks"

Code: Select all

x = 11, y = 15, rule = B3/S23
9bo$8bobo$8bobo$9bo8$b3o$b3o$obo$2o!
can we make a (13,4)c/41 spaceship?

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dvgrn
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Re: Thread for basic questions

Post by dvgrn » September 26th, 2021, 1:03 pm

C28 wrote:
September 26th, 2021, 11:51 am
how do i support this U-turner based partial with snarks?
Well, here's how I do it. First switch to LifeHistory with Alt+H in Golly, use Alt+K to change everything to state 3, and find out where the glider outputs are and what the period of the reaction is going to be. Turns out it's 196, as hotdogPi says:

Code: Select all

x = 185, y = 80, rule = LifeHistory
C109.DB$.2C107.B2D$2C108.2D2B$111.4B$112.4B$113.4B$114.4B$115.4B$116.
4B$117.4B$118.4B$119.4B$120.4B$121.4B$122.4B$123.4B$124.4B$125.4B$
126.4B$127.4B$128.4B$129.4B$50.C79.4B26.C$50.3C78.4B25.3C$53.C78.4B
27.C$52.2C79.4B25.2C$134.4B24.4B$55.2C78.4B25.B2C$54.C.C79.4B23.BC.C$
42.2C10.2C81.4B11.2C9.B2C$42.C.C93.4B10.C.C.B2.3B.3B$43.C95.4B10.C11B
$140.4B11.10B$141.4B10.11B$142.4B8.12B$143.4B7.12B$144.4B6.12B3A$145.
4B6.13BA$146.4B6.11BA$147.4B4.12B$148.4B3.11B$149.4B2.10B$150.4B.10B$
151.14B$152.13B$49.C103.6BC6B$49.C104.5BC7B$48.C105.4BC9B$154.10B.4B$
154.10B2.4B$50.3C100.7B3CB3.4B$50.3C99.8B3CB4.4B$49.C.C99.8BCBCB6.4B$
49.2C99.9B2C3B6.4B$149.16B6.4B$148.4B.12B7.4B$147.4B2.12B8.4B$146.4B
3.11B10.4B$145.4B5.10B11.4B$55.C88.4B6.11BC10.4B$54.C.C86.4B6.3B.3B2.
B.C.C10.4B$43.2C10.2C85.4B7.2CB9.2C11.4B$42.C.C96.4B7.C.CB23.4B$42.2C
29.C66.4B8.2CB25.3BD$72.2C65.4B10.4B24.B2DB$45.2C25.C.C63.4B13.2C25.D
BD$45.C91.4B14.C$46.3C87.4B16.3C$48.C86.4B19.C$134.4B$133.4B$132.4B$
131.4B$130.4B$129.4B$128.4B$127.4B$126.A3B$126.ABA$126.2A!
That's a tricky period, because even if the color happens to be right for connecting an output to either input with just Snarks -- which it isn't -- 196 is a multiple of 4, so there are three chances out of four that no amount of fiddling around with trombone-slide adjustments will get a glider back to the right spacetime location.

So, in these decadent modern days, rather than put in multiple copies of the base reaction and use the gliders from each copy to power the other one, we just throw in a Bandersnatch or two, and then connect things up and see how the timing works out:

Code: Select all

x = 427, y = 468, rule = LifeHistory
88.2A$88.A.A$90.A4.2A$86.4A.2A2.A2.A$86.A2.A.A.A.A.2A$88.BABABA.A$89.
B2ABA.A$90.2B.BA$89.3B$80.2A6.4B$81.A6.B2A3B$81.A.AB3.B2A3B$82.2AB.
10B$84.13B$84.14B$84.15B$86.8B2.4B206.2A$86.6B5.4B122.4B79.A.A114.4B$
85.9B4.4B120.4B82.A4.2A107.4B$84.4B4.2A5.4B118.3AB79.4A.2A2.A2.A104.
3AB$83.4B5.A7.4B116.3BA80.A2.A.A.A.A.2A103.3BA$82.4B7.3A5.4B114.3BA
83.BABABA.A105.3BA$81.4B10.A6.4B112.4B85.B2ABA.A104.4B$80.3B134.4B87.
2B.BA104.4B$79.4B133.4B87.3B106.4B$78.4B133.4B79.2A6.4B105.4B$77.4B
133.4B81.A6.B2A3B102.4B$213.4B82.A.AB3.B2A3B101.4B$212.4B84.2AB.10B
98.4B$211.4B87.12B97.4B$210.4B88.12B96.4B$209.4B89.12B95.4B$116.CB90.
4B92.8B4.CB90.4B$116.B2C88.4B93.6B6.B2C88.4B$116.2C2B86.4B93.9B4.2C2B
86.4B$117.4B84.4B93.4B4.2A5.4B84.4B$118.4B82.4B93.4B5.A7.4B82.4B$119.
4B80.4B93.4B7.3A5.4B80.4B$120.4B78.4B93.4B10.A6.4B78.4B$121.4B76.4B
93.3B20.4B76.4B$122.4B74.4B93.4B21.4B74.4B$123.4B72.4B93.4B23.4B72.4B
$124.4B70.4B93.4B25.4B70.4B$125.4B68.4B124.4B68.4B$126.4B66.4B126.4B
66.4B$127.4B64.4B128.4B64.4B$128.4B62.4B130.4B62.4B$129.4B60.4B132.4B
60.4B$130.4B58.4B134.4B58.4B$131.4B56.4B136.4B56.4B$132.4B54.4B138.4B
54.4B$133.4B52.4B140.4B52.4B$134.4B50.4B142.4B50.4B$135.4B48.4B144.4B
48.4B$136.4B26.C19.4B146.4B26.C19.4B$137.4B25.3C16.4B148.4B25.3C16.4B
$138.4B27.C14.4B150.4B27.C14.4B$139.4B25.2C13.4B152.4B25.2C13.4B$140.
4B24.4B10.4B154.4B24.4B10.4B$141.4B25.B2C8.4B156.4B25.B2C8.4B$142.4B
23.BC.C7.4B158.4B23.BC.C7.4B$143.4B11.2C9.B2C7.4B160.4B11.2C9.B2C7.4B
$144.4B10.C.C.B2.3B.3B6.4B162.4B10.C.C.B2.3B.3B6.4B$145.4B10.C11B6.4B
164.4B10.C11B6.4B$146.4B11.10B5.4B166.4B11.10B5.4B$147.4B10.11B3.4B
168.4B10.11B3.4B$148.4B8.12B2.4B170.4B8.12B2.4B$149.4B7.12B.4B172.4B
7.12B.4B$150.4B6.12B3DB174.4B6.12B3DB$151.4B6.13BD176.4B6.13BD$152.4B
6.11BD178.4B6.11BD$153.4B4.12B180.4B4.12B$154.4B3.11B182.4B3.11B$155.
4B2.10B184.4B2.10B$156.4B.10B185.4B.10B$157.14B186.14B$158.13B187.13B
$159.6BC6B187.6BC6B$160.5BC7B187.5BC7B$160.4BC9B186.4BC9B$160.10B.4B
185.10B.4B$160.10B2.4B184.10B2.4B$159.7B3CB3.4B156.C25.7B3CB3.4B$158.
8B3CB4.4B154.C.C23.8B3CB4.4B$138.C18.8BCBCB6.4B153.C.C22.8BCBCB6.4B$
138.3C15.9B2C3B6.4B150.3C.2C20.9B2C3B6.4B$141.C13.16B6.4B148.C4.B11.
2C7.16B6.4B$16.4B120.2CB11.4B.12B7.4B148.3CB2CB2.2B4.B2CB5.4B.12B7.4B
$3.2A10.4B121.5B8.4B2.12B8.4B149.C.2C6B.7B3.4B2.12B8.4B$4.A9.4B118.3B
3.3B7.4B3.11B10.4B150.22B3.11B10.4B$2.A10.4B119.4B2.6B3.4B5.10B11.4B
151.19B5.10B11.4B$2.5A5.4B5.2A111.15B.4B6.11BC10.4B149.19B6.11BC10.4B
$7.A4.4B5.A110.21B6.3B.3B2.B.C.C10.4B148.18B6.3B.3B2.B.C.C10.4B$4.3AB
2.7B.BA.A109.8B.13B6.2CB9.2C11.4B147.19B5.2CB9.2C11.4B$3.A.2B3.7B.B2A
109.23B5.C.CB23.4B143.2B.20B3.C.CB23.4B$3.4A12B110.4B2.19B4.2CB25.3BC
141.2C22B3.2CB25.3BC$.2A2.BA3B2A7B109.4B2.21B4.4B24.B2CB140.2CB.6BC
13B4.4B24.B2CB$A2.3AB.2B2A7B108.4B3.20B2C5.2C25.CBC141.B2.5BCBC14B4.
2C25.CBC$2A.A.B3.10B107.4B5.19B2C5.C172.5BC2BC14B4.C$3.A8.8B105.4B9.
17B7.3C170.5B2C16B4.3C$3.2A7.9B103.4B5.B4.16B10.C170.19B2.B2C5.C$13.
3B2.4B101.4B5.2CB.18B180.20B2.BC.C$11.5B3.4B99.4B6.2C9B2C8B180.2C16B.
3B4.C$11.2A7.4B97.4B8.B.7BC2BC8B80.4B95.2C21B3.2C$12.A8.4B95.4B11.7BC
BC10B66.2A10.4B97.2B.7B2.10B$9.3A10.4B93.4B12.8BC11B67.A9.4B102.6B2.
10B$9.A13.3B92.4B14.18B66.A10.4B104.4B3.8B$24.2B91.4B16.17B66.5A5.4B
5.2A101.2B3.2B.4B$25.B90.4B18.17B70.A4.4B5.A101.B2CB5.3B$115.4B18.14B
.B2C.C65.3AB2.7B.BA.A102.2C5.4B$114.4B19.B2CB2.B2.B5.B2CB3C62.A.2B3.
7B.B2A109.4B$113.4B21.2C5.3B6.B4.C61.4A12B110.4B$112.4B28.B2CB5.2C.3C
60.2A2.BA3B2A7B109.4B$111.4B30.2C7.C.C61.A2.3AB.2B2A7B108.4B$110.4B
40.C.C61.2A.A.B3.10B107.4B$109.4B42.C65.A8.8B105.4B$108.4B109.2A7.9B
103.4B$107.4B120.3B2.4B101.4B$106.4B119.5B3.4B99.4B$105.4B120.2A7.4B
97.4B$104.4B122.A8.4B95.4B$103.4B120.3A10.4B93.4B$102.4B121.A13.3B92.
4B$101.4B137.2B91.4B$100.4B139.B90.4B$99.4B230.4B$98.4B230.4B$97.4B
230.4B$96.4B230.4B$95.4B230.4B$94.4B230.4B$93.4B230.4B$92.4B230.4B$
91.4B230.4B$90.4B230.4B$89.4B230.4B$88.4B230.4B$87.4B230.4B$86.4B230.
4B$85.4B230.4B$84.A3B230.4B$83.A3B230.4B$83.3A230.4B$70.A10.4B230.4B$
70.3A7.4B230.4B$73.A5.4B230.4B$66.B5.2A4.4B230.4B$66.2B4.9B230.4B$66.
3B5.6B230.4B$66.4B2.8B229.4B$67.15B226.4B$68.14B225.4B$69.13B224.4B$
70.10B.B2A221.4B$72.3B2AB3.BA.A219.4B$72.3B2AB6.A218.4B$74.4B6.2A216.
4B$74.3B224.A3B$71.AB.2B224.A3B$70.A.AB2AB211.A11.3A$70.A.ABABAB210.
3A$67.2A.A.A.A.A2.A211.A$67.A2.A2.2A.4A204.B5.2A$69.2A4.A208.2B4.9B$
75.A.A206.3B5.6B$76.2A206.4B2.8B$285.15B$286.14B$287.13B$288.10B.B2A$
290.3B2AB3.BA.A$290.3B2AB6.A$292.4B6.2A$292.3B$289.AB.2B$288.A.AB2AB$
288.A.ABABAB$285.2A.A.A.A.A2.A$285.A2.A2.2A.4A$287.2A4.A$293.A.A$294.
2A64$197.4B196.4B$196.4B196.4B$195.3AB196.3AB$194.3BA196.3BA$193.3BA
196.3BA$192.4B196.4B$191.4B196.4B$190.4B196.4B$189.4B196.4B$188.4B
196.4B$187.4B196.4B$186.4B196.4B$185.4B196.4B$184.4B196.4B$183.4B196.
4B$90.CB90.4B104.CB90.4B$90.B2C88.4B105.B2C88.4B$90.2C2B86.4B106.2C2B
86.4B$91.4B84.4B108.4B84.4B$92.4B82.4B110.4B82.4B$93.4B80.4B112.4B80.
4B$94.4B78.4B114.4B78.4B$95.4B76.4B116.4B76.4B$96.4B74.4B118.4B74.4B$
97.4B72.4B120.4B72.4B$98.4B70.4B122.4B70.4B$99.4B68.4B124.4B68.4B$
100.4B66.4B126.4B66.4B$101.4B64.4B128.4B64.4B$102.4B62.4B130.4B62.4B$
103.4B60.4B132.4B60.4B$104.4B58.4B134.4B58.4B$105.4B56.4B136.4B56.4B$
106.4B54.4B138.4B54.4B$107.4B52.4B140.4B52.4B$108.4B50.4B142.4B50.4B$
109.4B48.4B144.4B48.4B$110.4B26.C19.4B146.4B26.C19.4B$111.4B25.3C16.
4B148.4B25.3C16.4B$112.4B27.C14.4B150.4B27.C14.4B$113.4B25.2C13.4B
152.4B25.2C13.4B$114.4B24.4B10.4B154.4B24.4B10.4B$115.4B25.B2C8.4B
156.4B25.B2C8.4B$116.4B23.BC.C7.4B158.4B23.BC.C7.4B$117.4B11.2C9.B2C
7.4B160.4B11.2C9.B2C7.4B$118.4B10.C.C.B2.3B.3B6.4B162.4B10.C.C.B2.3B.
3B6.4B$119.4B10.C11B6.4B164.4B10.C11B6.4B$120.4B11.10B5.4B166.4B11.
10B5.4B$121.4B10.11B3.4B168.4B10.11B3.4B$122.4B8.12B2.4B170.4B8.12B2.
4B$123.4B7.12B.4B172.4B7.12B.4B$124.4B6.12B3DB174.4B6.12B3DB$125.4B6.
13BD176.4B6.13BD$126.4B6.11BD178.4B6.11BD$127.4B4.12B180.4B4.12B$128.
4B3.11B182.4B3.11B$129.4B2.10B184.4B2.10B$130.4B.10B185.4B.10B$131.
14B186.14B$132.13B187.13B$133.6BC6B187.6BC6B$134.5BC7B187.5BC7B$134.
4BC9B186.4BC9B$134.10B.4B185.10B.4B$134.10B2.4B184.10B2.4B$133.7B3CB
3.4B156.C25.7B3CB3.4B$132.8B3CB4.4B154.C.C23.8B3CB4.4B$112.C18.8BCBCB
6.4B153.C.C22.8BCBCB6.4B$112.3C15.9B2C3B6.4B150.3C.2C20.9B2C3B6.4B$
115.C13.16B6.4B148.C4.B11.2C7.16B6.4B$114.2CB11.4B.12B7.4B148.3CB2CB
2.2B4.B2CB5.4B.12B7.4B$114.5B8.4B2.12B8.4B149.C.2C6B.7B3.4B2.12B8.4B$
110.3B3.3B7.4B3.11B10.4B150.22B3.11B10.4B$110.4B2.6B3.4B5.10B11.4B
151.19B5.10B11.4B$108.15B.4B6.11BC10.4B149.19B6.11BC10.4B$106.21B6.3B
.3B2.B.C.C10.4B148.18B6.3B.3B2.B.C.C10.4B$105.8B.13B6.2CB9.2C11.4B
147.19B5.2CB9.2C11.4B$104.23B5.C.CB23.4B143.2B.20B3.C.CB23.4B$103.4B
2.19B4.2CB25.3BC141.2C22B3.2CB25.3BC$102.4B2.21B4.4B24.B2CB140.2CB.6B
C13B4.4B24.B2CB$101.4B3.20B2C5.2C25.CBC141.B2.5BCBC14B4.2C25.CBC$100.
4B5.19B2C5.C172.5BC2BC14B4.C$99.4B9.17B7.3C170.5B2C16B4.3C$98.4B5.B4.
16B10.C170.19B2.B2C5.C$97.4B5.2CB.18B180.20B2.BC.C$96.4B6.2C9B2C8B
180.2C16B.3B4.C$95.4B8.B.7BC2BC8B179.2C21B3.2C$94.4B11.7BCBC10B179.2B
.7B2.10B$93.4B12.8BC11B183.6B2.10B$92.4B14.18B185.4B3.8B$91.4B16.17B
188.2B3.2B.4B$90.4B18.17B186.B2CB5.3B$89.4B18.14B.B2C.C185.2C5.4B$88.
4B19.B2CB2.B2.B5.B2CB3C189.4B$87.4B21.2C5.3B6.B4.C187.4B$86.4B28.B2CB
5.2C.3C187.4B$85.4B30.2C7.C.C188.4B$84.4B40.C.C187.4B$83.4B42.C187.4B
$82.4B230.4B$81.4B230.4B$80.4B230.4B$79.4B230.4B$78.4B230.4B$77.4B
230.4B$76.4B121.2A107.4B$75.4B122.A107.4B$74.4B125.A104.4B$73.4B106.
2A5.4B5.5A103.4B$72.4B108.A5.4B4.A107.4B$71.4B109.A.AB.7B2.B3A103.4B$
70.4B111.2AB.7B3.2B.A101.4B$69.4B114.12B4A100.4B$68.4B115.7B2A3BAB2.
2A97.4B$67.4B116.7B2A2B.B3A2.A95.4B$66.4B117.10B3.B.A.2A94.4B$65.4B
117.8B8.A96.4B$64.4B117.9B7.2A95.4B$63.4B117.4B2.3B104.4B$62.4B117.4B
3.5B101.4B$47.A13.4B118.3B7.2A100.4B$47.3A10.4B117.4B8.A100.4B$50.A8.
4B117.4B10.3A96.4B121.2A$49.2A7.A3B117.4B13.A95.4B122.A$49.5B3.A3B
118.3B109.4B125.A$51.3B2.B3A119.2B109.4B106.2A5.4B5.5A$41.2A7.9B120.B
109.4B108.A5.4B4.A$41.A8.8B230.4B109.A.AB.7B2.B3A$38.2A.A.B3.10B230.
4B111.2AB.7B3.2B.A$38.A2.3AB.2B2A7B229.4B114.12B4A$39.2A2.BA3B2A7B
228.4B115.7B2A3BAB2.2A$41.4A12B227.4B116.7B2A2B.B3A2.A$41.A.2B3.7B.B
2A224.4B117.10B3.B.A.2A$42.3AB2.7B.BA.A222.4B117.8B8.A$45.A4.4B5.A
221.4B117.9B7.2A$40.5A5.4B5.2A219.4B117.4B2.3B$40.A10.4B224.4B117.4B
3.5B$42.A9.4B208.A13.4B118.3B7.2A$41.2A10.4B207.3A10.4B117.4B8.A$54.
4B209.A8.4B117.4B10.3A$266.2A7.A3B117.4B13.A$266.5B3.A3B118.3B$268.3B
2.B3A119.2B$258.2A7.9B120.B$258.A8.8B$255.2A.A.B3.10B$255.A2.3AB.2B2A
7B$256.2A2.BA3B2A7B$258.4A12B$258.A.2B3.7B.B2A$259.3AB2.7B.BA.A$262.A
4.4B5.A$257.5A5.4B5.2A$257.A10.4B$259.A9.4B$258.2A10.4B$271.4B24$95.
4B$96.4B$97.4B$98.4B10.A$99.4B7.3A$100.4B5.A$101.4B4.2A5.B$102.9B4.2B
$103.6B5.3B$103.8B2.4B$101.15B$101.14B$101.13B$99.2AB.10B$98.A.AB3.B
2A3B$98.A6.B2A3B$97.2A6.4B$106.3B203.4B$107.2B.BA201.4B$106.B2ABA.A
201.4B$105.BABABA.A202.4B10.A$103.A2.A.A.A.A.2A200.4B7.3A$103.4A.2A2.
A2.A201.4B5.A$107.A4.2A204.4B4.2A5.B$105.A.A211.9B4.2B$105.2A213.6B5.
3B$320.8B2.4B$318.15B$318.14B$318.13B$316.2AB.10B$315.A.AB3.B2A3B$
315.A6.B2A3B$314.2A6.4B$323.3B$324.2B.BA$323.B2ABA.A$322.BABABA.A$
320.A2.A.A.A.A.2A$320.4A.2A2.A2.A$324.A4.2A$322.A.A$322.2A!
Do any of the gliders get to the red-marked position (well, it starts out white) at a time that's a multiple of 8?

-- Nope, no such luck, they're all odd numbers. Waiting one or more extra cycles works great for odd-period oscillations like this p83, but it won't help in this case. Adding more Bandersnatchi won't help either, because they have to be added in pairs, and that will always result in a timing change that's an even number of ticks.

So your question can't be answered as it stands, even if Bandersnatchi are allowed. We're going to have to add something else, or go back to the old trick of starting with multiple copies of the reaction feeding gliders to each other. You could add a syringe+H2G from simeks' old collection, or if that seems like overkill, just allow rectifiers.

That's just if you stick to stable stuff, though! As soon as you allow bouncers and bumpers, you can get the timing adjusted to whatever is needed, by starting with one p7 bouncer and two Snarks, and swapping out Snarks for bumpers one at a time until the right timing shows up -- don't even need to allow Bandersnatchi. 196 allows for p4 bumpers, so use those, they're by far the easiest to work with because you can move them without rephasing them.

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creeperman7002
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Re: Thread for basic questions

Post by creeperman7002 » September 28th, 2021, 1:27 pm

How can I get hotdogPi's osc script to keep running after it has found a solution?
B2n3-jn/S1c23-y is an interesting rule. It has a replicator, a fake glider, an OMOS and SMOS, a wide variety of oscillators, and some signals. Also this rule is omniperiodic.
viewtopic.php?f=11&t=4856

hotdogPi
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Re: Thread for basic questions

Post by hotdogPi » September 28th, 2021, 4:57 pm

creeperman7002 wrote:
September 28th, 2021, 1:27 pm
How can I get hotdogPi's osc script to keep running after it has found a solution?
I assume you're running the one-spark program, as the two-spark program warns you but gives you the option to keep running.

If you want to do them one by one:

Code: Select all

start_x, end_x, start_y, end_y = 11, 25, -10, 30

Code: Select all

if x == 11 and y < 23:
    continue

Code: Select all

if (x, y) == (11,23):
    g.warn('Already found: %s, %s, %s' % (x, y, generation))
    generation_snapshots = [''] * 200
else:
    g.warn('Found!: %s, %s, %s' % (x, y, generation))
    g.update()
    g.exit('Found!')
Wherever 11 appears, change it to the current x. Wherever 23 appears, change it to the current y, or y + 1 if you are getting a whole bunch of the same thing.

If you want to run everything to completion, in the last block of code, remove the exit command (and the warn command if you don't want to keep getting notified; it pauses until you click), and you'll need to save it to some file. Be warned that you will get some duplicates if you do this. You can remove the if statement, but keep the generation_snapshots line in case there are any actually useful duplicates (e.g. if a spark works in multiple places but a sparker only fits in one of them).

Of note: if you're running a rule other than Life, and these two spark locations are not equivalent, you're going to miss a few. This program doesn't bother to check the domino because it assumes they're identical.

Code: Select all

x = 17, y = 7, rule = B3/S23
3bo9b2o2$b3o9b3o$o3bo7bo3bo$o3bo7bo3bo$o3bo7bo3bo$b3o9b3o!
User:HotdogPi/My discoveries

Periods discovered: 6,8,10-16,18,20,21G,22,24,25,27-31,32SG,35,36,40,42,45,48,50,54G,55G,57G,60,63-66,70,74S,75,76S,84,96S,100,117G,120,126,128S,138,147,156,196S,217,486,576

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Qyz
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Billiard Table Construction questions

Post by Qyz » September 29th, 2021, 11:03 am

How to make effective attempts on finding billiard tables? Are there ways to do searches on the interior part for specific stators?
It can be seen that the White Whale in LongLife (B345/S5) may never collapse since the edge is guaranteed to be reborn every 2 ticks, and we may check the period for arbitrary setups. But for standard Life, is it that we may only build a rotor first?

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creeperman7002
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Re: Thread for basic questions

Post by creeperman7002 » September 30th, 2021, 8:20 am

Why is there a large variety of highly volatile oscillators in b35s23 and some other rules?
B2n3-jn/S1c23-y is an interesting rule. It has a replicator, a fake glider, an OMOS and SMOS, a wide variety of oscillators, and some signals. Also this rule is omniperiodic.
viewtopic.php?f=11&t=4856

hotdogPi
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Re: Thread for basic questions

Post by hotdogPi » September 30th, 2021, 9:45 am

creeperman7002 wrote:
September 30th, 2021, 8:20 am
Why is there a large variety of highly volatile oscillators in b35s23 and some other rules?
The more birth transitions compared to survival transitions, the more volatile things are. Life is also somewhat unusual in that most random soups have no oscillators above period 2; most rules similar to Life have at least one p3+ that occurs commonly (as in honeyfarm-level common).
User:HotdogPi/My discoveries

Periods discovered: 6,8,10-16,18,20,21G,22,24,25,27-31,32SG,35,36,40,42,45,48,50,54G,55G,57G,60,63-66,70,74S,75,76S,84,96S,100,117G,120,126,128S,138,147,156,196S,217,486,576

S: SKOP
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wwei47
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Re: Thread for basic questions

Post by wwei47 » October 1st, 2021, 8:01 am

Why are pi, B, and H considered methuselahs? R is smaller and lasts over 5 times as long. Note that the "X is smaller and lasts Y times as long" argument is used against many "methuselahs" as a reason for unnotability.
Self-proclaimed synthesis "expert"

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Re: Thread for basic questions

Post by dvgrn » October 1st, 2021, 8:15 am

wwei47 wrote:
October 1st, 2021, 8:01 am
Why are pi, B, and H considered methuselahs? R is smaller and lasts over 5 times as long. Note that the "X is smaller and lasts Y times as long" argument is used against many "methuselahs" as a reason for unnotability.
My take would be that they are "historically significant methuselahs" from the floor-tile / graph paper days of 1969-1970something.

Many of the methuselahs on the list of "long-lived" methuselahs aren't "notable" today, in the sense that they're not record-breaking -- but they were notable at one point, so they get to stay there on the list and rub shoulders with the latest and greatest.

hotdogPi
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Re: Thread for basic questions

Post by hotdogPi » October 1st, 2021, 8:26 am

wwei47 wrote:
October 1st, 2021, 8:01 am
Why are pi, B, and H considered methuselahs? R is smaller and lasts over 5 times as long. Note that the "X is smaller and lasts Y times as long" argument is used against many "methuselahs" as a reason for unnotability.
I actually argued againt Octomino II (116 generations, not sure how many cells its smallest predecessor is) being listed as a methuselah when its article was created on the wiki, but it became one anyway. See teardrop and butterfly for what a common sequence that's not a methuselah looks like.

Also, pi has a 5-cell predecessor — no larger than R.
User:HotdogPi/My discoveries

Periods discovered: 6,8,10-16,18,20,21G,22,24,25,27-31,32SG,35,36,40,42,45,48,50,54G,55G,57G,60,63-66,70,74S,75,76S,84,96S,100,117G,120,126,128S,138,147,156,196S,217,486,576

S: SKOP
G: gun

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Re: Thread for basic questions

Post by GUYTU6J » October 2nd, 2021, 11:19 am

LifeWiki says that RNE-19T84 is not Spartan, which I think is due to the eater2 variant to minimize bounding box. Do we really need it elsewhere, apart from an L156-based edge-shooter where it also catalyzes the HLx69R stage? Can't we just use a simple block as can be seen in this post?
Beijing 2022 Winter Olympics Game is coming soon!

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