ConwayLife.com

Now that we have c/10, can someone piece together an updated version of this image? http://pentadecathlon.com/lifeNews/2013/03/orthogonal-velocities.png Ignoring the ships and colors for a moment, I'm not even sure how the circles are generated. Maybe there is a name for this kind of thing but I ca...

While results came back negative, I have a better feel for how spaceship searches are done. I searched for c/13 and 2c/13 with even and odd symmetry up to width 10 (e.g. "zfind p13 k1 w5 l2000" and "zfind p13 k1 u w5 l2000"), 3c/13 and 4c/13 with odd symmetry up to width 11, c/14 and c/15 with odd s...

But how do I run a python script? I don't have a python script runner or whatever you call it (we're usin one at school, but how am I supposed to use it at home?) so can you get them for free or something? Yeah, download Python 2.7 from https://www.python.org/downloads/. If you are using Windows, t...

Actually, if you look in Volume 1, Conway refers to gliders as "featherweight spaceships". Language evolves over time. The term "featherweight spaceship" was used in the ancient times when the Game of Life was just a couple years old at most and Conway used the term "featherweight spaceship" as a w...

Can we include this rule in rainbow as well? If anyone is up to that challenge? If so, medium/dark grey for this rule No, because B0: (ALSO HOLY CRAP DON'T RUN IF YOU HAVE EPILEPSY) How Golly runs B02346/S023 in QuickLife without flashing lights: it alternates between the inverse rule (B1578/S14567...

That D-shaped thing is commonly known as a cap.

Thus the still life is known as "cap and table" (Catagolue) or "up table on cap" (from http://codercontest.com/mniemiec/lifesrch.htm).

House is something else.

But the result wouldn't even merit posting in Useless Discoveries, really. Personally, I wouldn't discourage others from posting in this thread. This thread after all is about "Useless Discoveries". It has also been for the most part a fun thread where anything goes. More to the point, there are pl...

It's called hat siamese hat on Catagolue: https://catagolue.appspot.com/object/xs14_4aaraa4/b3s23 Certainly someone found it interesting enough to give it a name, but there are a lot of 14-cell still lifes (from http://www.conwaylife.com/wiki/Still_life , 619+279=898 such still lifes), and there are...

If I correctly understand what Noaminski means by "Maths SL IB (11th grade)", then those problems are definitely way too hard. I'm not sure what constitutes an acceptable level of math in this context. Does there have to be new results? Or rather, is it a survey of interesting things that have alrea...

How do you compile this? Use gcc. It fails to compile in g++. I tried it out and noticed a few things: - It uses up a lot of memory, especially at higher w. - The program crashes for some values, like w>=10, or p=5, k=2. I think I have an idea why w>=10 crashes but there doesn't seem to be a quick ...

The option to "read the whole story" shows the lengthy list of accomplishments. An update that shows these additions more prominently would certainly be welcome, I support this as well. Until I saw biggiemac's post, I thought that ConwayLife.com gave up on updating. The thing I don't get is why som...

I'm guessing the sudden renewed interest in this thread is based on this discussion we were having in the "Replicator" thread (which somehow turned into a "moving partial agar" thread) . Almost every single example posted there so far is of this type. A couple of them are Life patterns (one of them ...

I wrote a script for these: For some reason, using golly.new() before doing the repeated paste makes it so much faster: import golly as g s = g.getselrect() if s == []: s = g.getrect() xy = [0, 0] s = g.getcells(s) if s == []: g.exit("Pattern is empty.") disp = g.getstring("Enter displacement in fo...

I am still completely lost on how to do any of this stuff :L Draw an object, copy it, clear field, paste at (0,0), run one gen, paste at (a,b), run one gen, paste at (2a,2b), run one gen, paste at (3a,3b), run one gen, ... Note: you can draw the object repeatedly instead of pasting it repeatedly if...

Nice find, zdr.

There are also "permanent" non-rock eaters, like the following: x = 12, y = 33, rule = B2ce3ai_S23 2$5bobo$5bobo$6bo16$6bo$4b2ob2o$4bo3bo$3bo2bo2bo$3bob2o2bo$2bobo5bo$2b o5bobo$3bo2b2obo$3bo2bo2bo$4bo3bo$4b2ob2o$6bo! So those can exist. Can you break it with multiple ships from different directions...

Indeed that rock is permanent. In the code below, as long as all cells marked "x" are off, then those cells will always remain off and the "O" cells will always remain on, no matter the state of all the other cells. ........... ..xx...xx.. .xOOxxxOOx. .xOxxOxxOx. ..xxOxOxx.. ..xOxxxOx.. ..xxOxOxx.. ...

Found a way to get signals out both ends of FractalFusion's splitter using my B60 and a bit of reaction suppression trickery: x = 40, y = 71, rule = B2ce3ai_S23 21b2o$18b2ob2o$18b2o$24b2o$24b2o$27bo$26b2o2$30b2o$31bo$15b2o12bo$16bo 6bo5b2o$13b2o2bo4bo2bo$13bo2bo7bo$15b2o$20b2o$18bo2bo$18b2o9b2o$29b...

True-period p24, p36 and p48 guns: x = 126, y = 23, rule = B2ce3ai_S23 obobobo2$obobobo$104b2o$obobobo97b2o$48b2o2b2o47b2o$obobobo41bob2obo 47b2o$49bo2bo$obobobo42bo2bo14b2o2b2o51b2o$48b2obo3bo11bob2obo30b3o18b 2o$obobobo44b3obo12bo2bo31b3o15b2o$50bo4bo12bo2bo37b2o10b2o$obobobo43b 3o14bobob2o36b2o$1...

I can't load this rule in the golly app, and the forum viewer does not let me play it. Help? http://conwaylife.com/forums/viewtopic.php?p=27382#p27382 - Copy the first code block, paste it into a text editor and save as a new file "B2ce3ai_S23.rule" in the Rules folder for Golly. - In Golly, Contro...

Here's a F42, a related splitter F42/F42b, and T36 joined to that splitter: x = 124, y = 35, rule = B2ce3ai_S23 3$115b2o$115b2o2b2o$63b2o54b2o$63b2o2b2o$67b2o42b2o$111b2o$15b2o42b2o 59bo$15b2o2b2o38b2o58bo2bo$19b2o47bo30bo21bo$67bo2bo26bo2bo$3bo43bo21b o28bo$bo2bo40bo2bo58b2o$2bo43bo60b2o$11b2o4b2o3...

If a spaceship with velocity (m,n)c/p exists in Conway's Game of Life (where m and n are the vertical and horizontal displacements and p is the period), then we must have m + n <= p/2. Wait, what? Explain please? Nathaniel wrote a nice article about this here . It only shows the c/4 diagonal and c/...

In other news, I found a signal elbow which allows for closed signal loops! It's got a repeat time of 12. Here's a demonstration: x = 50, y = 49, rule = B2ce3ai_S23 29b2o$24b2o3b2o$20b2o3bo$20b2obo3b2ob2o$23b2o2b2obo$30bo$29b2ob2o$25b 2o5bob2o$23bobo8bob2o$21bob2o2b2o7bo2bo$19bob2o3bobo9b2o$9b2o6bo...

Is there something about iPad Air 2 that makes it impossible to open RLE or MC directly in Golly? There's a menu option: File -> Open Pattern... , then select caterpillar.mc. That is so much better than opening in a text file and trying to copy and paste into Golly. Also, I think caterpillar.mc shou...

I've confirmed that B2ce3ai_S23 is capable of universal computation and universal slow-salvo (pair) construction. First, the logic circuits: x = 973, y = 288, rule = B2ce3ai_S23 416bo2bo2bo4bo2bo2bo4bo2bo2bo4bo5bo10bo2$374bo$416bo10bo5bo4bo5bo4bo5b o7bo5bo2$371bo5bo$153b2o3b2o256bo10bo5bo4bo2bo2bo4b...