Search found 1823 matches

by Sokwe
May 12th, 2021, 7:57 pm
Forum: Patterns
Topic: Spaceship Discussion Thread
Replies: 1643
Views: 742845

Re: Spaceship Discussion Thread

A for awesome wrote:
May 12th, 2021, 4:10 pm
EvinZL wrote:
May 12th, 2021, 12:32 pm

Code: Select all

rle
I feel like I've seen this before but I still love it.
It was found by Jason Summers in November 2003.

Also, I moved this discussion to the spaceship discussion thread.
by Sokwe
May 11th, 2021, 11:01 pm
Forum: Patterns
Topic: (2,1)c/6 technology thread
Replies: 34
Views: 1186

Re: (2,1)c/6 technology thread

dvgrn wrote:
May 11th, 2021, 10:25 pm
May13 wrote:
May 11th, 2021, 8:53 pm
Edit: p24 rake...
Jormungant already posted a p24 rake with different technology
Jormungant's rake is pseudo-period, while the new rake by May13 is a true p24 rake. I asked about true p24 and p36 ships because they would fall into the spaceship periods table.
by Sokwe
May 11th, 2021, 8:15 pm
Forum: Patterns
Topic: (2,1)c/6 technology thread
Replies: 34
Views: 1186

Re: (2,1)c/6 technology thread

In addition to the wave Hartmut mentioned, I would like to see a stretcher for the following wick: x = 25, y = 47, rule = B3/S23 2o2$b2o2$2b2o2$3b2o2$4b2o2$5b2o2$6b2o2$7b2o2$8b2o2$9b2o2$10b2o2$11b2o 2$12b2o2$13b2o2$14b2o2$15b2o2$16b2o2$17b2o2$18b2o2$19b2o2$20b2o2$21b2o 2$22b2o2$23b2o! Also, has anyo...
by Sokwe
May 11th, 2021, 7:36 pm
Forum: Patterns
Topic: Oscillator Discussion Thread
Replies: 1814
Views: 798785

Re: Oscillator Discussion Thread

Is it still the case that there are no known strictly volatile p4 oscillators [1]? [1] https://www.conwaylife.com/wiki/LifeWiki:Game_of_Life_Status_page#Oscillator_volatilities Yes, that's still the case, although a better source for which periods have known strictly-volatile oscillators is here .
by Sokwe
May 10th, 2021, 5:29 am
Forum: Patterns
Topic: (2,1)c/6 technology thread
Replies: 34
Views: 1186

Re: (2,1)c/6 technology thread

p48 rakes Nice work! Since you constructed rakes with output streams in all directions, this qualifies as a "versatile puffer" according to the Life status page . How would you like to be credited? Note that it may be confusing if you are credited as May13, since that could get confused with a disc...
by Sokwe
May 6th, 2021, 6:43 pm
Forum: Other Cellular Automata
Topic: Miscellaneous Discoveries in Other Cellular Automata
Replies: 2462
Views: 585589

Re: Miscellaneous Discoveries in Other Cellular Automata

Not in CGoL, but is this known? x = 5, y = 5, rule = B3678/S34678 bo$3o$b4o$2b3o$2b2o! It's a reflectorless u-turning oscillator or whatever you call these. The Patterns forum is only for patterns in Conway's Game of Life. Patterns in other rules belong in the Other Cellular Automata forum. I have ...
by Sokwe
May 5th, 2021, 5:03 pm
Forum: Patterns
Topic: Spaceship Discussion Thread
Replies: 1643
Views: 742845

Re: Spaceship Discussion Thread

I ran all of the 5c/11 logical-width-10 and 4c/11 logical-width-9 searches with qfind v2.1. Are you planning to do a 3c/11 search next? I'd be interested to see how useful the 3c/11 forward movement mechanism that I mentioned a while back turns out to be. No, I just started the c/8 width-21 gutter ...
by Sokwe
May 5th, 2021, 3:49 pm
Forum: Patterns
Topic: Spaceship Discussion Thread
Replies: 1643
Views: 742845

Re: Spaceship Discussion Thread

I ran all of the 5c/11 logical-width-10 and 4c/11 logical-width-9 searches with qfind v2.1. No ships were found, and the longest partial results were similar to those posted by Andrew J. Wade here and here . x = 184, y = 31, rule = B3/S23 5b3o3b3o17b3o10b3o19bo5bo49bo20bo10bo15bo9bo$4bo3bobo3bo16bo2...
by Sokwe
May 3rd, 2021, 5:53 pm
Forum: Scripts
Topic: qfind - a spaceship search program
Replies: 83
Views: 34344

Re: qfind - a spaceship search program

I could make and set up LLVM according to these directions , but I couldn't use OpenMP using the -fopenmp tag. > cd ~/qfind > g++ qfind.cpp -static -O3 -fopenmp -o qfind clang: error: unsupported option '-fopenmp' clang: error: unsupported option '-fopenmp' I suspect you would want to use clang++, ...
by Sokwe
May 3rd, 2021, 4:48 pm
Forum: Patterns
Topic: Spaceship Discussion Thread
Replies: 1643
Views: 742845

Re: Spaceship Discussion Thread

If it returns negative, how would we check the result? If we wanted to prove that no such spaceships exist, we would need to use some other program. qfind needs (probably) over 200 GB of RAM to run a logical-width-12 search, so it effectively can't be used. I'm not sure, but I doubt that ikpx2 is f...
by Sokwe
May 3rd, 2021, 5:14 am
Forum: Scripts
Topic: qfind - a spaceship search program
Replies: 83
Views: 34344

Re: qfind - a spaceship search program

can I request for a precompiled on windows version again? Try this: qfind-v2.1-windows.zip This was compiled under Mingw-w64 using g++ qfind.cpp -static -O3 -fopenmp -o qfind (Or wich version of c++ should I use?) To compile it yourself, you need a C++ compiler that works with your operating system...
by Sokwe
May 3rd, 2021, 3:36 am
Forum: Scripts
Topic: qfind - a spaceship search program
Replies: 83
Views: 34344

qfind v2.1 released (Re: qfind - a spaceship search program)

qfind v2.1 released Changes: If the cache memory option (-c) is not set, qfind will automatically enable lookahead caching for speeds greater than c/5 and will disable it otherwise. There is no longer a need to compile two different versions of qfind, as setting -c 0 will disable lookahead caching....
by Sokwe
May 1st, 2021, 7:08 pm
Forum: Patterns
Topic: Spaceship Discussion Thread
Replies: 1643
Views: 742845

Re: Spaceship Discussion Thread

now report some results I've completed via qfind: Which version of qfind are you using? qfind 2.0. Ordinary qfind v2.0 cannot eliminate the possibility of a spaceship when gcd(period,translation) > 1. The version in this post can, but the searches generally take longer to complete and find a number...
by Sokwe
May 1st, 2021, 5:47 pm
Forum: Patterns
Topic: Spaceship Discussion Thread
Replies: 1643
Views: 742845

Re: Spaceship Discussion Thread

shuich01 wrote:
May 1st, 2021, 7:30 am
now report some results I've completed via qfind:
Which version of qfind are you using?
by Sokwe
April 28th, 2021, 8:10 am
Forum: Scripts
Topic: qfind - a spaceship search program
Replies: 83
Views: 34344

Re: qfind - a spaceship search program

cgoler2 wrote:
April 28th, 2021, 7:35 am
It does print the same spaceship twice in a row when I was searching for c/4 orthogonal spaceships with logical width 9 and gutter symettry.
You're right. I'll have to look into this. Thanks for the report.
by Sokwe
April 28th, 2021, 8:00 am
Forum: Scripts
Topic: zfind discussion
Replies: 252
Views: 181523

Re: zfind discussion

ntzfind refuses to return a spaceship in B3ai/S2ae3aijr4aiw... Though I have this spaceship: x = 4, y = 4, rule = B3ai/S2ae3aijr4aiw 3o$o2bo$obo$bo! [[ TRACK -1/3 -1/3 ]] Bug or feature? I'm using Cygwin. It appears to be a bug of some sort. I believe the problem is in lookAhead(), because if I mod...
by Sokwe
April 28th, 2021, 7:05 am
Forum: Scripts
Topic: qfind - a spaceship search program
Replies: 83
Views: 34344

Re: qfind - a spaceship search program

qfind sometimes outputs two spaceships which are actually the same spaceship. qfind should not print the same ship twice in a row , but if it will sometimes find a ship, then find a different ship, then find the first ship again, causing the first ship to be printed twice. There are two reasons for...
by Sokwe
April 27th, 2021, 12:40 am
Forum: Patterns
Topic: Spaceship Discussion Thread
Replies: 1643
Views: 742845

Re: Spaceship Discussion Thread

I'm saying that someone succeeded at a harder search in WLS. And that required a lot of luck. JLS and WLS can definitely find ships with shapes that couldn't be searched for with qfind, LSSS, or ikpx2, so there's a possibility that this could allow it to find something where those others fail. I do...
by Sokwe
April 27th, 2021, 12:15 am
Forum: Patterns
Topic: Spaceship Discussion Thread
Replies: 1643
Views: 742845

Re: Spaceship Discussion Thread

Are you sure you want to use LSSS? I'm pretty sure it's still bugged. It may be buggy, and it may miss things, but it can also finds things that nothing else can. From what I've seen, it's the fastest program for wide, high-speed ships. ikpx2 seems like it might be useful, but I don't know if it ca...
by Sokwe
April 26th, 2021, 11:28 pm
Forum: Scripts
Topic: Thread for your script-related questions
Replies: 167
Views: 43682

Re: Thread for your script-related questions

Why do the parameters B34/S1567/o3n1v/l108 in gfind mysteriously get stuck so quickly? It does seem to be getting stuck at depth 73 and can't complete the depth-first step. I also tried giving it a large queue size and it still appears to get stuck in the breadth-first step. Interestingly, I ran it...
by Sokwe
April 26th, 2021, 8:38 pm
Forum: Patterns
Topic: Spaceship Discussion Thread
Replies: 1643
Views: 742845

Re: Spaceship Discussion Thread

I have confirmed with qfind that there are no period-7 2c/7 width-23 gutter-symmetric spaceships. The longest partial result is very similar to the one found by Andrew J. Wade here . Here are some other long partials: x = 181, y = 88, rule = B3/S23 5bo9bo28bo9bo27bo13bo24bo13bo24bo17bo$4bobo7bobo26b...
by Sokwe
April 26th, 2021, 7:04 pm
Forum: Patterns
Topic: Oscillator Discussion Thread
Replies: 1814
Views: 798785

Re: Oscillator Discussion Thread

2c/3 signal to a weak diagonal thumb... EDIT: it can support [the two ponds and two block reaction]; maybe possible to find a p28 stabilization (or even some exotic periods) The relevant LifeWiki article doesn't mention this p28 stabilization using a compact pre-pulsar shuttle: The block and pond r...
by Sokwe
April 26th, 2021, 3:11 am
Forum: Website Discussion
Topic: Change the main page to a LifeViewer embed/relocate News
Replies: 7
Views: 324

Re: Change the main page to a LifeViewer embed/relocate News

I completely agree with every point you made. I think an easily-accessible CA viewer and editor on conwaylife.com would be extremely beneficial for newcomers. You really can't understand Conway's Game of Life unless you've played with it a bit.
by Sokwe
April 24th, 2021, 6:18 pm
Forum: Patterns
Topic: Oscillator Discussion Thread
Replies: 1814
Views: 798785

Re: Oscillator Discussion Thread

p88, mod 44: x = 36, y = 36, rule = B3/S23 16b2o2$17b3o$16bo3bo$20bo2$16bo3b2o$17b2o2bo$18b3o$19bo2bo$19bo$20bobo $21bo$9bobo$6b2o4bo$3b2obobo2bo$2bo5b3o18bo2bo2bo$2bo4b2o19bo4bobo$obo 4bo19b2o4bo$o2bo2bo18b3o5bo$24bo2bobob2o$23bo4b2o$24bobo$14bo$13bobo$ 16bo$13bo2bo$15b3o$14bo2b2o$14b2o3bo2$15bo$1...
by Sokwe
April 21st, 2021, 8:07 pm
Forum: Patterns
Topic: Oscillator Discussion Thread
Replies: 1814
Views: 798785

Re: Oscillator Discussion Thread

Not a partial, and it's even a sparker! However, at p10, it might already be known It doesn't appear in jslife or the osc supplement collection . I also tried searching this thread for "p10" and couldn't find it. The dot spark seems pretty inaccessible with the current heavyweight volcanoes, but th...