A width 12 even symmetric search with ntzfind (rokicki's). I noticed a repeating component, and substituted a Copperhead in for another part and got the ship.
x = 9, y = 20, rule = B3/S23
4bo$3bobo$2bo2b2o$2bo2b2o4$bo2bobo$2ob3o$bo$bo2bo$b4o$2bob2o$3bob2o$2b
2o2b2o$bo5b2o$bo2bo2bo$2bo4b2o$bob3o$o2bo3bo!
I have a bunch of searches that I did a while ago that I forgot about.
The torch of 5S has been passed on again, and is now managed by speedydelete. It can be found here. Also check out my program EPE, a tool for searching for patterns in various rulespaces.
Congrats on the new c/10 pushalong!
What about naming it "Coppergut"? Because at it's front is the copperhead's main head and at the back it has the little "tail" of a block.
x = 19, y = 48, rule = B3/S23
5b2o5b2o$3bo4bobo4bo$3bo4bobo4bo$2bo5bobo5bo$bobo3b2ob2o3bobo$2b4o7b4o
$3bob2o5b2obo$4bobob3obobo$3b13o$4bo9bo$6b3ob3o$6b2o3b2o$4b3o5b3o2$3bo
3bo3bo3bo$2b2o3bo3bo3b2o$2bo3bo5bo3bo$2bo13bo$2bo13bo$4b2obo3bob2o$4bo
2bo3bo2bo$3b2obo5bob2o$2bob2o7b2obo$2bob2o2b3o2b2obo$2bobo9bobo$5bo7bo
$6bo5bo$4bo2bo3bo2bo$2b2o2b2obob2o2b2o$3b2obob3obob2o2$3bo5bo5bo$2bo3b
obobobo3bo$2bobobo5bobobo$3bo2bo5bo2bo$8b3o$3b5o3b5o$2b2o2bo5bo2b2o$2o
15b2o$4bobo5bobo$2o4b3ob3o4b2o$2bo3b3ob3o3bo$2o2bo9bo2b2o$o2b2o3b3o3b
2o2bo$8b3o$b2ob3o5b3ob2o$b3ob2obobob2ob3o$bo4bobobobo4bo!
The torch of 5S has been passed on again, and is now managed by speedydelete. It can be found here. Also check out my program EPE, a tool for searching for patterns in various rulespaces.
AforAmpere wrote:does anyone have any other suggestions for a name?
Other potential possibilities: "Cuttlefish" (reused from a suggestion for Copperhead itself), "Chalcocite" (the mineral form of Cu₂S, as this ship has two Copperhead-like components and one distinct one), or simply "78P10H1V0".
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...
x = 12, y = 20, rule = B3/S23
bo$bo$obo2$obo$2o$3b2o$3b2o$3bobo$6b2o$7b2o$7b2o$3b3o2b2o2$5bo2b2o$6b
4o$4bo2bobo$4bo6bo$6bo2b2o!
needs a tail
Check the fourth and fifth rows from the bottom in Golly's Patterns/Life/Spaceships/c4-orthogonal.rle. There are lots of known completions with the same first seven rows. Might be some more matches hiding elsewhere, I didn't look really carefully.
If a tail can be found to stabilize the next seven rows, that might be a new ship. But this may be search space that's already been covered pretty well. Not being a c/4 spaceship search expert, I wouldn't really know.
Apple Bottom wrote:Cottonmouth -- sticking with the "snakes starting on C" theme.
I like Cottonmouth, it's easy to pronounce fluidly and has to do with snakes. I think Cottonmouth would be a good name for the pushalong.
The torch of 5S has been passed on again, and is now managed by speedydelete. It can be found here. Also check out my program EPE, a tool for searching for patterns in various rulespaces.
AforAmpere wrote:I like Cottonmouth, it's easy to pronounce fluidly and has to do with snakes. I think Cottonmouth would be a good name for the pushalong.
While we're at it, "snake" could be made an (un)official nickname for a c/10 spaceship.
(There's some potential for confusion there, granted, but I don't see it being a problem in practice, anymore than -- say -- the existence of two different barges.)
If you speak, your speech must be better than your silence would have been. — Arabian proverb
x = 25, y = 14, rule = B3/S23
2o$ob4o2bo$o4bo$bobobo4bo9b2o$11b4o2bobo3b2o$2b2o3b9o3bo3bo$bo4bo3b2o$
o13bo4bo4bo$bo11b3o3b3o2bo$2bobo7bo3bo2bo2bo$3b2ob2o5b2obo6bo$14b3o$
16b3o$18bo!
The connection of this ship to the 2c/5 wave I was trying to support inspired another search which found this tagalong/pushalong. It connects to several other similar ships, these two are the only ones I found which have <= 90 cells:
x = 19, y = 24, rule = B3/S23
6bo5bo$6b2o3b2o$8bobo$5bo2bobo2bo$3b2obobobobob2o$6bobobobo$6bobobobo$
3b3ob2ob2ob3o3$4bo9bo$3bob2o5b2obo$2bo13bo$3bo3b2ob2o3bo$3bo4bobo4bo$
4bo3bobo3bo$4b4o3b4o$3bo11bo$2bobo9bobo$b2o13b2o$b2obo9bob2o$4bo9bo$ob
obo9bobobo$o17bo!
The search took around 131 CPU hours. This still does not mean a C/8 does not exist at w10 g, but it does show that it does not with this frontend. Longest partial:
I am currently running a C/8 search at w10 u, which will probably be much, much longer.
The torch of 5S has been passed on again, and is now managed by speedydelete. It can be found here. Also check out my program EPE, a tool for searching for patterns in various rulespaces.
Sokwe wrote:Here's an update to the small c/4 orthogonal and 2c/5 orthogonal ship collections:
c4o-and-2c5-small-ships-5-Apr-2018.zip
@wildmyron, I credited you as "WM" in ships-2c5-unique.rle since "AP" was already being used for Aidan Pierce. Do you want to be credited differently?
Sorry, I forgot to respond to this.
Thank you for continuing to maintain this collection and confirming the ships I posted are worth including. I'm happy for WM to be used as it is unambiguous and relates to me. If you used 3 letter initialisations then AJP would be appropriate, but it doesn't seem like there's any need for that and the two letter forms do format nicely.
The 5S project (Smallest Spaceships Supporting Specific Speeds) is now maintained by speedydelete.
Semi-active here - recovering from a severe case of LWTDS.
I've spent the last month or so using ntzfind to search for low-width high-period ships, in hopes of finding the next Copperhead. Unfortunately there have been no positive results, but here are all the negative results:
That's a nice set of results, a shame they're all negative, but not too surprising. A few of them are duplicates of earlier results posted here, but it's good to have a summary of these higher period results in one place. Some of the previous results: 5c/11, w10; 3c/13, w7
Here's a non-monotonic frontend for a 2c/5 spaceship.
x = 57, y = 44, rule = B3/S23
14bo$12bobo5bo$11b2ob2o4bobo$12b2ob3o2b2o$18b2obo$19bobo$17bobo$13b3ob
ob2o$14bo3bo$9bobobo3bob3o$3bo2b4o7bo3b3o$2bo3b3o8bo3b2o$b2o15b2o$6bo$
o2bob5o$bo4bo3bo$2b3obo$2bo$3bobob2o2b2o$4bo2bo$5b6o$9b2o$9b3o$12bo2b
2o$12b5o2$14b2o4b2o$14b3o3b4o$13bo3bo2bob2ob2o$14bo2bo3bo4bo$14bo2bo3b
o12b2o$21b2o11b3o$21bo4bo2b2o5bo$21b4ob4obo3b3o12b2o$22b2ob2o4b2obob2o
18bo$31bo4b3o17bo$27bo5b2o10b9o2bo$34bobo3b2o2bo2b2o3b3o$35b3o4bob2o2b
o4bo2bo$36bob4o3b2o2bobo2bo$39b2o5b2obo2bobo$47bo3b2ob2o$49b2o5bo$50bo!
Is such a ship known? I couldn't find an example in my perusal of the pattern collections, the wiki, or this forum. There are quite a few alternative frontends, I just chose this one and tried to extend it. I was quite hopeful of being able to complete it after it split in two and there were several narrow connections in the extended partials on both sides. But after meandering through the search space with JLS and sifting through the various narrow connections trying to find known components which could complete the ship, I've been unsuccessful. There were several other partials extending the botttom connection but I haven't recorded all of them. This was just the longest I've managed to extend the two parts (most time spent on the bottom part) although perhaps not the most promising.
The 5S project (Smallest Spaceships Supporting Specific Speeds) is now maintained by speedydelete.
Semi-active here - recovering from a severe case of LWTDS.
