I posted this into the "accidental discoveries" thread. 9 cells creates a very long ship plus a few other things. I know it's a rare object, but I still found it interesting.
hotdogPi wrote: February 28th, 2021, 9:28 am
I posted this into the "accidental discoveries" thread. 9 cells creates a very long ship plus a few other things. I know it's a rare object, but I still found it interesting.
Generation 32 gives a nine-cell parent for a clean very long ship if one replaces the duoplet with a dot spark.
x = 11, y = 22, rule = B3/S23
bo7bo$2bo5bo$2bo5bo$b2o5b2o6$9bo$b2o5bo$2bo5bo$2bo5b2o$bo6$2bo5bo$ob2o
3b2obo$2bo5bo!
Also, the dead spark coil isn't very common. If you want to be helpful, please try to find small predecessors for long barges, aircraft carriers, long ships, integrals, or any objects already covered for which I missed minimally sized predecessors.
x = 36, y = 43, rule = B3/S23
2bo$bobo14bo2bo13bo$o3bo13b4o10b4o$bo3bo26bo$2bobo$3bo17$17b8o18$20b2o
$19bo2bo$19b4o!
The top three are sparks. The table and the Z-hexomino are probably minimal, but there could be some 6-cell predecessors. The one on the left is likely not minimal.
The constellation forming from a line of 8 is seen often enough (although probably not from the line of 8 itself). I don't think it's possible with 6, but I can't rule out 7 (even though it's symmetrical, it doesn't have to begin that way).
The last one is the interchange with spacing 4 (the most common form by far) — I'm surprised you haven't included it yet.
MathAndCode wrote: May 5th, 2021, 9:52 pm
I just added a bunch of still lives to the list. Please let me know if I made any errors or omitted any predecessors with minimal population.
Looks mostly good to me, although I didn't go through to check every single predecessor if I knew of multiple at a given minimum population. Here's an 8-cell hat predecessor, the only one I know of but not necessarily the only one that exists:
former username: A for Awesome
praosylen#5847 (Discord)
The only decision I made was made
of flowers, to jump universes to one of springtime in
a land of former winter, where no invisible walls stood,
or could stand for more than a few hours at most...
A for awesome wrote: May 5th, 2021, 10:16 pmLooks mostly good to me, although I didn't go through to check every single predecessor if I knew of multiple at a given minimum population. Here's an 8-cell hat predecessor, the only one I know of but not necessarily the only one that exists:
Here's an even more edgeshootable traffic light predecessor. The four on the left are the ones you already have, and the one on the right is the new one.
According to Achim Flammenkamp's census page, a very long boat has an eight-cell predecessor, and a very long ship at least has a dirty eight-cell predecessor. However, I can't seem to find very long boat predecessors with fewer than nine cells, and I have no idea what the eight-cell dirty long ship predecessor is/predecessors are. Does anyone know what patterns Achim Flammenkamp was referring to?
hotdogPi wrote: May 19th, 2021, 8:29 am
Here's an even more edgeshootable traffic light predecessor. The four on the left are the ones you already have, and the one on the right is the new one.
I'm interested in tracking edgeshootable predecessors, not edgeshooting predecessors. The predecessor on the right edgeshoots a shield pentaplet, which I already have listed as an edgeshootable predecessor.
You might want to add these three. The first two I posted in another thread (the naming proposals thread, without giving a name myself), and you (the OP) commented on it, and the third is in a late generation but is the most recognizable generation of the pattern to me. (I feel like the second one is also in a late generation, but what I do with my program requires using patterns after they've all converged, while the purpose of this thread is different.)
However, I don't plan to add any of them because they aren't very common, they don't have well-defined names, and I am seeking to focus on adding still lives now.
hotdogPi wrote: July 17th, 2021, 9:44 amSince the honey farm with 6 cells entry is so large, you might want to split it into four subcategories: these three and "other".
This thread was originally made to answer the question, "Why is so-and-so pattern so common?" I don't see how splitting up a category would serve that purpose.
hotdogPi wrote: July 17th, 2021, 9:44 amDo we have a list anywhere of absolutely everything that can be made with 6 cells?
Awashbu12 wrote: October 19th, 2021, 4:45 pm
I made this and it ended up being a seven generation predecessor for Kok’s Galaxy. 58C916F3-DDD2-429C-985D-C1BFCC7C8769.jpeg
Wow! That's impressive! Unfortunately, Kok's galaxy doesn't qualify as common (with no C1 or G1 soups), so I don't want to add it.
By the way, for the future, it is recommended to provide patterns as RLEs in [code][/code] tags so that other people can run them more easily, such as the following for your pattern.
MathAndCode wrote: May 19th, 2021, 4:53 pm
According to Achim Flammenkamp's census page, a very long boat has an eight-cell predecessor, and a very long ship at least has a dirty eight-cell predecessor. However, I can't seem to find very long boat predecessors with fewer than nine cells, and I have no idea what the eight-cell dirty long ship predecessor is/predecessors are. Does anyone know what patterns Achim Flammenkamp was referring to?
hotdogPi wrote: May 19th, 2021, 8:29 am
Here's an even more edgeshootable traffic light predecessor. The four on the left are the ones you already have, and the one on the right is the new one.
I'm interested in tracking edgeshootable predecessors, not edgeshooting predecessors. The predecessor on the right edgeshoots a shield pentaplet, which I already have listed as an edgeshootable predecessor.