For discussion of specific patterns or specific families of patterns, both newly-discovered and well-known.

muzik wrote:The wiki status page mentions p28, p32 and p36 c/2 spaceships, can someone give me RLEs of these?

There's a reason the jslife collection gets mentioned a lot. Seek and thou shalt find that which you request, in the "c2-extended" folder under, e.g., c2-0028.lif. Here's an example:

p28 c/2 spaceship:

x = 41, y = 43, rule = B3/S2332bo$29b4o$29b2o$27bo$27b4o$26bo$25b3o2bo$26b3o$27bo$28b3obo$28bo2b2o$29b3o$31bo$29bo$29bobo$9b2o3b2o12bo$6b2o3bo5bo10bo2bo$5b2obo3b2ob3o6bobobo$6b3o8bo5bo2bobo2bo$7b2o2b5o6b2o4b2o$16b3o7bobo2bo$7o6b2o2b8obobo$o6bo5bo14bo2bo$o13b2ob2ob5obobo2bo4b2o$bo11bo3b2o2bo4bobo2bo3bo$3b2o4bo3b6o3b2o4bo2bo4bo$6b5obo2bob2o4bo2bobo2bo5b4o$5b2o7bo2b3o4bobobo10bo$6b4obob2o3b2o9bobo$7b3obobo15bo$31bo$29b3o$28bo2b2o$28b3obo$27bo$26b3o$25b3o2bo$26bo$27b4o$27bo$29b2o$29b4o$32bo!#C [[ TRACK -1/2 0 GPS 10 AUTOSTART ]]

dvgrn
Moderator

Posts: 5709
Joined: May 17th, 2009, 11:00 pm

As mentioned before, I've moved house and don't have internet on my desktop computer yet.

A weird question: are there any XWSS based ships that don't have a period a multiple of 4? Of course this would require rephasing the ship somehow.
Bored of using the Moore neighbourhood for everything? Introducing the Range-2 von Neumann isotropic non-totalistic rulespace!
muzik

Posts: 3310
Joined: January 28th, 2016, 2:47 pm
Location: Scotland

I am certain that I've seen this 2c/6 ship before (possibly with a different p3 part), but I can't find it on the forums:
x = 25, y = 70, rule = B3/S2312bo$11bobo$10bo3bo$11b3o2$9b2o3b2o$9b2o3b2o$6b4o5b4o$2bob2obob2o3b2obob2obo$b3o4bobo3bobo4b3o$o3bo5bo3bo5bo3bo$bo8bo3bo8bo$9bo5bo2$8b9o$7b2o7b2o$12bo2$10b2ob2o$9bobobobo$7b3o5b3o$6bo4bobo4bo$6bobobo3bobobo$6bob2o5b2obo2$6bo11bo$10b5o2$10b2ob2o$9bo5bo$10b2ob2o$11bobo$10bo3bo2$8bobo3bobo$8b3o3b3o$6bo2b2o3b2o2bo2$6b3o7b3o$7bo9bo$8b3o3b3o$10bo3bo$7b2o7b2o$9b2o3b2o$7bobobobobobo$7bo9bo$9b3ob3o$7bob3ob3obo$6bob2o5b2obo$6bo2b2o3b2o2bo$6bo2b2o3b2o2bo$8b2o5b2o$7bobo5bobo$9bo5bo$9b2o3b2o$8b2o5b2o$8bobo3bobo$8bobo3bobo$11bobo$8bobo3bobo$7bo9bo$7b3o5b3o$6bo3bo3bo3bo$6bo3bo3bo3bo$6b2o3bobo3b2o$7bob2o3b2obo$8b3o3b3o$9b2o3b2o$10b5o$11b3o!

Does anyone know where it was originally posted?
-Matthias Merzenich
Sokwe
Moderator

Posts: 1473
Joined: July 9th, 2009, 2:44 pm

muzik wrote:A weird question: are there any XWSS based ships that don't have a period a multiple of 4? Of course this would require rephasing the ship somehow.

Don't think so. Well, technically... is a Caterloopillar an XWSS-based ship? I think that the only likely way to avoid a multiple-of-4 period would be to basically delete and re-create all the XWSSes in a ship, along the lines of the Caterloopillar.

There has been some investigation into p4 ships that change phase and therefore produce non-p4 output, but they generally look like period-2 ships with a trailing p4 part.

Here's a big phase-changing puffer example from the previous decade. Presumably it could be turned into a p378 rake, and therefore a clean p378 spaceship, with enough effort. Maybe someone has done this already, I haven't looked very hard -- but the puffer is all that shows up at p378 in jslife:

#C A period 378 c/2 puffer.#C This is the first in a series of c/2 puffers having periods which#C are not a multiple of 4.  A phase-changing blinker puffer and a set#C of period 42 rakes creates a row of blinkers.#C Gliders from two more period 42 rakes ignite the blinker row, which#C burns faster than c/2 until it reaches a pair of period 6 ships.#C Then the cycle repeats.#C The next puffer in the series can be created by advancing all of the#C puffer except the rear rakes and their gliders by 168 generations.#C Then the resulting puffer has its period increased by 588 generations.#C The series thus contains periods 378, 966, 1554, and so on.#C Only 1/7 of the possible non-multiple of 4 periods using period 42#C rakes are covered by the series.  Adjusting the back rakes to ignite#C the blinker row in other ways may provide further coverage.#C This is a smaller version of a similar puffer built in March 2002.#C David I. Bell, 30 December 2008x = 303, y = 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[[ TRACK 0 -1/2 AUTOSTART ]] dvgrn Moderator Posts: 5709 Joined: May 17th, 2009, 11:00 pm Location: Madison, WI ### Re: Spaceship Discussion Thread muzik wrote:As mentioned before, I've moved house and don't have internet on my desktop computer yet. A weird question: are there any XWSS based ships that don't have a period a multiple of 4? Of course this would require rephasing the ship somehow. Does "2c5-engineless-rake-p185.rle" count as a "XWSS-based ship"? x = 531, y = 201, rule = 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LifeWiki: Like Wikipedia but with more spaceships. [citation needed] BlinkerSpawn Posts: 1876 Joined: November 8th, 2014, 8:48 pm Location: Getting a snacker from R-Bee's ### Re: Spaceship Discussion Thread I am trying to find a c/8 spaceship wearing a hat ,and here is a partial x = 15, y = 21, rule = B3/S2313bo12bo11bo10bo3bo8bo4b2o5b5obobo6bobo2bo7bo5bo3bobob2o3bob3obob2o2b3oo5b3o2b2ob3obob2o2b3o3bobob2o3bo7bo5bo6bobo2bo5b5obobo8bo4b2o10bo3bo11bo12bo13bo! Welcome to share your ideas about etymology of names! GUYTU6J Posts: 506 Joined: August 5th, 2016, 10:27 am Location: outside Plain of Life ### Re: Spaceship Discussion Thread Is this small 2c/6 component known? x = 14, y = 63, rule = B3/S235b2ob2obo2bob2ob2o6b2obobo4bobo3b2o2b2o2b2ob2ob2o4bo2bo2bo6bo2bo6bo22b8ob2o6b2o46bo5b3o8bo26bo6b2o6b2o7bo6bobobo5bo4b2o5bo4bo8bo5bo3b2o4b2ob2obo3b2o3bo4bo2bobo4b2ob2o2b2obo3b2ob2obo4bob2oo3bob2obobobob3obo6b2o2bo4b2o2b2o6bo5bo3b3o6bo5b2o4bob3o2b2o3b2ob3obobo2bo2bo2bob2o6bobobo6bobobo5b2obobo8bobob2o8bobob2o7b2obo8bo2bo5b2obo2b3o4bobob2o2b3obobo2bob2obo3boo3bo2b3o8bo7bobo6bo3bo6bobobo5b2obob2o5bo5bo6bo3bo! It was found when testing a modification of zfind. The p3 part at the back could probably be reduced. -Matthias Merzenich Sokwe Moderator Posts: 1473 Joined: July 9th, 2009, 2:44 pm ### Re: Spaceship Discussion Thread BlinkerSpawn wrote: muzik wrote:As mentioned before, I've moved house and don't have internet on my desktop computer yet. A weird question: are there any XWSS based ships that don't have a period a multiple of 4? Of course this would require rephasing the ship somehow. Does "2c5-engineless-rake-p185.rle" count as a "XWSS-based ship"? long Probably not. It doesn't move at c/2 with a XWSS-like front end. Bored of using the Moore neighbourhood for everything? Introducing the Range-2 von Neumann isotropic non-totalistic rulespace! muzik Posts: 3310 Joined: January 28th, 2016, 2:47 pm Location: Scotland ### Re: Spaceship Discussion Thread Sphenocorona wrote:Although I'm not experienced with building helices to be specific periods, I think I have to agree with the above: to actually gain over the 11c/24 burn reaction, the amount of time spent burning must be very long relative to the lengths of the fuses. However, I do believe there is room for improvement in helix design. By starting with a somewhat odd LWSS-on-MWSS flotilla I was able to find a helix edge component in a few different variations (low *WSS options on top, smaller area options below. Left-most is for comparison): x = 188, y = 60, rule = 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! I don't know if it's known, but I figure there's probably some other useful corner-turn reactions out there we don't know about yet. If it produced the same glider four gens earlier it would allow for a 4x 17c/45 helix, but since it doesn't, the maximum speed for a period 180 helix is only 3c/7... EDIT: Interestingly, the Coe ship by itself can function as a helix edge. Not only that, but the glider ends up displaced over 20 cells at nearly lightspeed. Unfortunately the big plume created from the reaction prevents it from being all that useful: x = 22, y = 10, rule = B3/S23bo11b3o4bob2o10bo2bo2b3oobo10bo4b2obo13bo3b4o13bo5b2o13bo2bo14b2o14bo15bo15bo! would it be possible to include these finds in codeholic's helix building block database? I think an upgrade would revive the topic! In theory. more pieces give more options and maybe we can thus avoid unfortunate combinations we cannot easily synthesize. HartmutHolzwart Posts: 420 Joined: June 27th, 2009, 10:58 am Location: Germany ### Re: Spaceship Discussion Thread Here's a small 4c/8 tagalong: x = 18, y = 26, rule = B3/S2315bo14b3o3o3b3o5bob2oo2bobo2bo6b3oo7bo6b2oo7bobobo4bo3bo4bo3bo2b3o8bo5bo5bobo12bo12b3o12bo12bo211b2o11b2o13bo11bo2bo9bo3bo8bo9bobo13bo11bo2bo10bo2bo10bobo! I found it while trying to determine the minimum widths for different 4c/8 symmetry types. zfind indicates that the minimum widths for even and gutter symmetric searches are 20 and 19 respectively: x = 59, y = 94, rule = 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! As I have mentioned previously, I'm not sure yet whether I trust zfind to cover the entire search space (especially when using some of my modifications, as is the case here). I have less evidence for the asymmetric and even glide symmetric cases, but I believe the minimum widths are 12 and 20 respectively: x = 54, y = 68, rule = B3/S233bo32b3o10b3o2b3o3b3o25bo2bo8bo2bo2bob2o2bo2bo24bo14bo3b3o2bo27bo3bo6bo3bo3b3o2bo27bo3bo6bo3bo3b2o4bobo25bo3bo4bo3bo42bo2bo6b2o35b2o5bob2o31bobo2bobo4b2ob2o31bo6bo4bo2bo33b2o2b2o3bob3o31b2o6b2o6bo31b3obo2bob3o4b2o31b2o2bo4bo2b2o3bo32bo2bo8bo2bo36bo2b2o6b2o2bo3bobo28bo3bo10bo3bo2bo31bo3b3o6b3o3bo2bob2o30bo14bo2bo2b2o27bo2bo12bo2bo2bo2b3o26bob2o12b2obo5b2obo26b3o12b3o4bobobo3b3o3bo3b2ob2o27b2o14b2o6b2o27bo16bo6b2o26bobo14bobo6b2ob2o27bo4b2o4bo7bo2bo27b2ob2o2b2ob2o7bo3bo24b4o8b4o8bobo24b2o2b2obo2bob2o2b2o34bo18bo7b2o28b2o2bo4bo2b2o6b3o25b2o6bo2bo6b2o6bo2bo29bobo4bobo5b6o26b2o10b2o4bo5bo29bo6bo4bobo3bo26bo2bo6bo2bo3b2obobob2o25bo12bo4bo2b2o2bo26b2ob2o2b2ob2o3b2obob2o26b2obob2o2b2obob2o6bob2obo27bobob2obobo6b2o31bo8bo6b2o30b2o8b2o38bobo6bobo3bo3b2o32bob2obo2b3o2b3o33b2o2bob2o2b2o32bo2bo3b2o2b3o3b3o34b2o4b2o5bo34bob4obo2o4bo2bo32b4o2obo4bo29bob2o4b2obobobo33b2ob2ob2ob2ob2o6b3o27bobo3bo2bo3bobo8b2o25b2o2bo2bo2bo2bo2b2o9b2o23bo2bo2bobo2bobo2bo2bo9b2o27bo10bo9bo24b2o5bo4bo5b2o7bo30bo2bo4bo2bo9bo29bo8bo8bo39b2o6b2o7b2o29bo2bo4bo2bo6bo2bo36bo2bo6bo2bo27bo4bo4b2o7b2o28bo4bo39b2o! This is because there are very few 2c/4 asymmetric ships at width 11, and no even symmetric 2c/4 ships at width 18 (except two *WSSs next to each other). -Matthias Merzenich Sokwe Moderator Posts: 1473 Joined: July 9th, 2009, 2:44 pm ### Re: Spaceship Discussion Thread I was surprised to find this period-10 tagalong to Dean's small 2c/5 ship: x = 15, y = 36, rule = B3/S233b3o3b3o2bo3bobo3bo2b2o7b2o2bo3bobo3bo3b2o5b2o3obo5bob3o2ob2o5b2ob2obob2o5b2obo3b2o5b2oo3bo5bo3bo3bo7bo26b3o5b2ob2o5b2ob2o24b2obob2o3bo3bo3bo2b2ob2ob2ob2o3bobo3bobo2bobo5bobo2bo9bo5b2ob2o3bobo3bobo3bo7bo5bo3bo6bobo6b3o5bobobo5bo3bo4bo2bo2bo5b5o34b2o3b2o3b2o5b2o! It has a width of 15, which is the minimal width for an odd symmetric 4c/10 ship. The search was set to stop after finding a p10 ship, so there could still be others at this width. -Matthias Merzenich Sokwe Moderator Posts: 1473 Joined: July 9th, 2009, 2:44 pm ### Re: Spaceship Discussion Thread I am running the 4c/10 search again to allow it to find more ships. So far it has found two things. First, if you remove the pre-beehives from the back of the ship above, you get another p10 ship: x = 15, y = 32, rule = B3/S233b3o3b3o2bo3bobo3bo2b2o7b2o2bo3bobo3bo3b2o5b2o3obo5bob3o2ob2o5b2ob2obob2o5b2obo3b2o5b2oo3bo5bo3bo3bo7bo26b3o5b2ob2o5b2ob2o24b2obob2o3bo3bo3bo2b2ob2ob2ob2o3bobo3bobo2bobo5bobo2bo9bo5b2ob2o3bobo3bobo3bo7bo5bo3bo6bobo6b3o5bobobo5bo3bo4bo2bo2bo5b5o! Second, this new ship can pull blinkers: x = 45, y = 34, rule = B3/S233b3o3b3o21b3o3b3o2bo3bobo3bo19bo3bobo3bo2b2o7b2o19b2o7b2o2bo3bobo3bo19bo3bobo3bo3b2o5b2o21b2o5b2o3obo5bob3o15b3obo5bob3o2ob2o5b2ob2o15b2ob2o5b2ob2obob2o5b2obo17bob2o5b2obo3b2o5b2o21b2o5b2oo3bo5bo3bo15bo3bo5bo3bo3bo7bo21bo7bo26b3o27b3o5b2ob2o25b2ob2o5b2ob2o25b2ob2o24b2obob2o23b2obob2o3bo3bo3bo21bo3bo3bo2b2ob2ob2ob2o19b2ob2ob2ob2o3bobo3bobo21bobo3bobo2bobo5bobo19bobo5bobo2bo9bo19bo9bo5b2ob2o25b2ob2o3bobo3bobo21bobo3bobo3bo7bo21bo7bo5bo3bo25bo3bo6bobo27bobo6b3o27b3o5bobobo25bobobo5bo3bo25bo3bo4bo2bo2bo23bo2bo2bo5b5o25b5o2b3o27b3o7b3o! zfind also reported that the dart was the only odd symmetric width-15 ship in a 3c/9 search. That indicates that 17 is the minimum width for odd symmetric 3c/9 ships: #C Width-17 odd-symmetric 3c/9 orthogonal spaceship by David Bellx = 17, y = 29, rule = B3/S238bo7bobo6bo3bo7b3o25b2o3b2o2b2o3bobo3b2o2b2o3bobo3b2o2o5bobo5b2o4b2obobob2oo6bobo6bo3b2o2bobo2b2obo2bobo3bobo2bob2o11b2ob2o11b2o4bo7bo4b3o3b3o6bo3bo3b2obo3bob2o5b2o3b2o5bobobobo25bo2bo2bo6b2ob2o5b2o3b2o24bo2b3o2bo3b11o3b2obo3bob2o! Again, I'm not entirely confident in zfinds ability to eliminate all ships, so I am not including it in the table. Edit: the 4c/10 width-15 odd symmetric search finished without finding any more ships. Edit 2: zfind indicates that no 4c/10 width-19 gutter symmetric ships exist (except two period-5 ships). If that is the case, then the minimum width for a 4c/10 gutter spaceship is 21: #C width-21 gutter-symmetric 4c/10 orthogonal spaceship by Paul Tookex = 21, y = 23, rule = B3/S235b3o5b3o5bobo5bobo5bo2bo3bo2bo5bo3bobo3bo2bo3b2obobob2o3bo2ob2o2bobobobo2b2ob2o2ob2o3b2ob2o3b2ob2obo7bobo7bo3o6bobo6b3ob2o5b2ob2o5b2o9bobo5b4o3b4o5bo9bo7bo5bo7bobobobo7b3ob3o8b2ob2o28bo3bo27bobobobo7bobobobo8b2ob2o! -Matthias Merzenich Sokwe Moderator Posts: 1473 Joined: July 9th, 2009, 2:44 pm ### Re: Spaceship Discussion Thread Very nice. The blinker-pulling ship looks like it has potential for puffers, at at least use in high-period c/3 designs such as rakes. Tanner Jacobi Kazyan Posts: 830 Joined: February 6th, 2014, 11:02 pm ### Re: Spaceship Discussion Thread Frustration: a c/6 search exploring extensions of a known ship at width 19 alternating with width 21 gutter and culminating in this partial (many others too, but this is the longest): x = 284, y = 21, rule = 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! The latest version of the 5S Project contains over 150,000 spaceships. Tabulated pages up to period 160 are available on the LifeWiki. wildmyron Posts: 1165 Joined: August 9th, 2013, 12:45 am ### Re: Spaceship Discussion Thread Is there anyone searching for c/8 spaceships? I can only get such partial x = 15, y = 21, rule = B3/S2312b2o14bo11bo2bo8b3o3bo7bo3bo8bob3o5bo3bo2b2o5b2o6bo3bobobo4bob3o3bo3boo4bobo2bo2b2ob3o3bo3bo3bobobo4bo5b2o6bo5bo3bo2b2o8bob3o7bo3bo8b3o3bo11bo2bo14bo12b2o! EDIT:Maybe more promising? x = 19, y = 17, rule = B3/S2315b3o8b4o2b2o7bo3bo2b3obo8bob3o5bo3bo2b2o2bobo5b2o3bobobo4bob3obob3o3bo3boo4bobo3bo2bob3o3bo3bo3bobobo4bob3obo5b2o5bo3bo2b2o2bobo8bob3o7bo3bo2b3obo8b4o2b2o15b3o! Last edited by GUYTU6J on October 6th, 2016, 12:09 pm, edited 1 time in total. Welcome to share your ideas about etymology of names! GUYTU6J Posts: 506 Joined: August 5th, 2016, 10:27 am Location: outside Plain of Life ### Re: Spaceship Discussion Thread GUYTU6J wrote:Is there anyone searching for c/8 spaceships? As it happens I'm currently trying to extend one of the partials previously shared with the forum. Original here, further discussion in this thread. GUYTU6J wrote:I can only get such partial rle: Triangular shaped, c/8 partial I believe that the partials you contributed earlier in this thread are considerably more promising than this one. Here's the longest partial I've come across in my search: x = 18, y = 51, rule = B3/S233obo2bo2bo2bob3ob2obo2bo2bo2bob2o2bo3bo4bo3bo7bo2bo2bo4b4o4bo2bobobo4bobobo2bo5b2o5bo3bobo6bobo8b2o4b2o6b2o4b2ob4ob2o4b2o6b2o3bo3b4o3bo6b6o3bobo2b2o2boboobo2b3o2b3o2boboob2o10b2obo3b2o8b2o5bo6bo22bob4o2b4obobo14bobo4b2o2b2o4bobo4b2o2b2o4bo2bob3o4b3obo2b2obo6bob2o3b3o6b3o3bo2bo4bo2bo4b3o4b3o2b2o10b2obo2bo8bo2bob3o10b3o43b3o6b3o33bo2bo4bo2bo2bo3bo4bo3bo3bo2bo4bo2bo4b4o2b4o5b8o6bo4bo6bo4bo6b2o2b2o8b2o3b2o8b2o2bo2bo6bo2bo3bobo6bobo4bo8bo! Edit: some other interesting partials (including the one above): x = 201, y = 53, rule = 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! The latest version of the 5S Project contains over 150,000 spaceships. Tabulated pages up to period 160 are available on the LifeWiki. wildmyron Posts: 1165 Joined: August 9th, 2013, 12:45 am ### Re: Spaceship Discussion Thread extensible c(4,0)/8 x = 40, y = 120, rule = B3/S23612b5o12bo4bo12bo13bo3bo18b2o11bo9bo10bo10bo10bo10b11o15bo14b3o13bo2b2o12bobobo9b4ob3o8b2o4b2o7b2o2b2o2bob2o8bobobobo9b2obobo10bobob2o11b2o12bo2bo12bo2bo11b2o10bobob2o9b2obobo8b2o2bobo9bo2bobo2bo10bobobob2o12bob3o12bob3o10bobobob2o9bo2bobo2bo8b2o2bobo9b2obobo10bobob2o11b2o12bo2bo12bo2bo11b2o10bobob2o9b2obobo8b2o2bobo9bo2bobo2bo10bobobob2o12bob3o12bob3o10bobobob2o9bo2bobo2bo8b2o2bobo9b2obobo10bobob2o11b2o12bo2bo12bo2bo11b2o10bobob2o9b2obobo8b2o2bobo9bo2bobo2bo10bobobob2o12bob3o12bob3o10bobobob2o9bo2bobo2bo8b2o2bobo9b2obobo10bobob2o11b2o12bo2bo12bo2bo11b2o10bobob2o9b2obobo8b2o2bobo9bo2bobo2bo10bobobob2o12bob3o12bob3o10bobobob2o9bo2bobo2bo8b2o2bobo9b2obobo10bobob2o11b2o12bo2bo12bo2bo11b2o10bobob2o9b2obobo8bobobobo7b2o2b2o2bob2o8b2o4b2o9b4ob3o12bobobo13bo2b2o14b3o15bo10b11o10bo10bo10bo11bo9bo18b2o13bo3bo12bo12bo4bo12b5o! HartmutHolzwart Posts: 420 Joined: June 27th, 2009, 10:58 am Location: Germany ### Re: Spaceship Discussion Thread HartmutHolzwart wrote:extensible c(4,0)/8 x = 40, y = 120, rule = 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! Nice! I bet someone could make a puffer from that. x = 81, y = 96, rule = LifeHistory58.2A58.2A359.2A17.2A59.2A17.2A379.2A79.2A257.A56.A56.3A427.A27.A.A27.2A213.2A3.2A2.2A7.2A187.2A7.2A2.2A11.2A112A2A2.2A4.2A184.2A4.2A2.2A8.2A! Gamedziner Posts: 747 Joined: May 30th, 2016, 8:47 pm Location: Milky Way Galaxy: Planet Earth ### Re: Spaceship Discussion Thread wildmyron wrote: GUYTU6J wrote:Is there anyone searching for c/8 spaceships? As it happens I'm currently trying to extend one of the partials previously shared with the forum. Original here, further discussion in this thread. Taking another stab at this problem, unfortunately another negative result. I used zfind to try to extend the symmetrical loaf pusher at width 10, starting from the blinkers. Command line: zfind b3s23 p8 k1 v w10 e initrows.txt initrows.txt: ...............o...................o....................o.......o..o......oo........ooo........o........ooo........o........ooo.......oo.........o.............. The search took about a month. I didn't keep a complete record of all the output but did observe a few long partials during the search: x = 60, y = 64, rule = 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! The latest version of the 5S Project contains over 150,000 spaceships. Tabulated pages up to period 160 are available on the LifeWiki. wildmyron Posts: 1165 Joined: August 9th, 2013, 12:45 am ### Re: Spaceship Discussion Thread In fact, 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. It'd be interesting, though, if a spaceship was made that exceeded c/2 periodically, while moving at an average speed equal to or less than c/2. There is life on Mars. We put it there with not-completely-sterilized rovers. And, for that matter, the Moon, Jupiter, Titan, and 67P/Churyumov–Gerasimenko. Mr. Missed Her Posts: 90 Joined: December 7th, 2016, 12:27 pm Location: Somewhere within [time in years since this was entered] light-years of you. ### Re: Spaceship Discussion Thread Fun fact: While there is only 3 weightships that are stable on their own, there are infinite stable weightship combinations if you include overweight spaceship flotillae (whatever the plural is), because you can have an overweight escorted by overweights escorted by overweights... until you get down to a stable weightship. I'm late on this, but here's an example (the big thing at the bottom.): [M2] (golly 2.8)#R B3/S23$$$***....*$*..*...*$*......*$*......*$.*.*...*$4 0 0 0 15 0 2 0 0$$**.....*..*....*.......*...*...*.......*$$$$**..*$$...*$...*$4 0 0 4 5$$.......*.......*.***...**..*...*...*...*$$$$**..*.....***....*..*.......*4 0 0 7 8*.*....*$$*.*.....***$4 10 11 0 12...*...*$*.*....*$.......*$.......*$....*.*$$*.*$$...***$..*..*$.....*$$.......*......*.***.*..*.*.*.*4 14 15 16 175 6 9 13 186 0 0 3 19$$$$.....***....*..*.......*$$$$...***...*..*...*...*...*4 0 0 21 22$$$$.****..*...*4 0 0 24 7.......*.......*....*.*...*...*...*...*....*.*$$**$.*$.*...***$.*...*$.*...*$.*...*$.*...*$*$...***$..*..*$.....*$4 26 27 28 29...*$...*$*.*$...*...*$...*...*$...*...*$*.*....*$.......*.***$4 31 32 33 05 23 25 30 344 0 0 8 0.......*$.......*$.......*$....*.*$$*.*4 37 0 0 05 36 0 38 06 0 0 35 39.....*..*.*4 0 16 0 415 0 42 0 0.....***...*.*...*.*...*.*...*.*...*.*...*.*...*.*.*.*..*.*$$......*$.*...*$.*...*$.*...*$.*...*$.*...*$*....*$.....*$......*$4 17 44 45 46*....*$.....*$.....*$.....*$.....*$.....*$.....*$.....*$.*$.*$.*$.*$.*$.*$.*$.*$.....*$.....*$.....*$.....*$.....*$.....*$.....*$*....*$4 48 49 50 494 41 45 0 05 47 51 0 526 43 53 0 0.*...*$.*...*$.*...*$.*...*$.*...*$.*...*$.*...*$.*...*$.....*$.....*$.....*$.....*$.....*$.....*$.....*$.....*$4 55 56 55 56.*..*$.*.....*$.*....*$.*$.*$.*$.*$.*$.*$.*$.*$.*$.*$.*....*$.*$..*.*$.*...*$.*...*$.*...*$.*....*$.*$*$4 58 28 59 60.....*$..*.*$$*4 60 62 0 05 57 61 63 04 29 0 62 05 65 0 0 06 64 66 0 07 20 40 54 67 PS: "Weightships" is how I collectively refer to __weight spaceships. There is life on Mars. We put it there with not-completely-sterilized rovers. And, for that matter, the Moon, Jupiter, Titan, and 67P/Churyumov–Gerasimenko. Mr. Missed Her Posts: 90 Joined: December 7th, 2016, 12:27 pm Location: Somewhere within [time in years since this was entered] light-years of you. ### Re: Spaceship Discussion Thread Reporting negative results from gfind on 5c/11 width 13 odd, 14 even, and 15 gutter. I didn't expect anything, but one has to start somewhere. x₁=ηx V ⃰_η=c²√(Λη) K=(Λu²)/2 Pₐ=1−1/(∫^∞_t₀(p(t)ˡ⁽ᵗ⁾)dt)$$x_1=\eta xV^*_\eta=c^2\sqrt{\Lambda\eta}K=\frac{\Lambda u^2}2P_a=1-\frac1{\int^\infty_{t_0}p(t)^{l(t)}dt}

http://conwaylife.com/wiki/A_for_all

Aidan F. Pierce

A for awesome

Posts: 1818
Joined: September 13th, 2014, 5:36 pm
Location: 0x-1

Mr. Missed Her wrote:It'd be interesting, though, if a spaceship was made that exceeded c/2 periodically, while moving at an average speed equal to or less than c/2.

The proof shows that the leading edge can't enter a half-diagonal more than once every other generation.
In other words, your statement makes no sense.
NoLongerBreathedIn

Posts: 30
Joined: March 25th, 2015, 5:57 pm

Here's a fairly small 2c/6 ship:
x = 21, y = 27, rule = B3/S236b3o3b3o$2bob2o3bobo3b2obo$b3o3bobobobo3b3o$o3bo4bobo4bo3bo$bo7bobo7bo$8bobobo$8bobobo2$10bo$9bobo$7b2o3b2o$7b2o3b2o$6bo7bo$9bobo$4b2o3bobo3b2o$5bobobobobobo$4bo4bobo4bo3$6b2o5b2o$6bo7bo$6bobo3bobo$8bo3bo$7bo5bo$5b3o5b3o$6bo2bobo2bo$7b2o3b2o! The component at the back end has been seen before, but I don't think anyone noticed that it can pull itself: x = 22, y = 41, rule = B3/S236b3o3b3o$2bob2o3bobo3b2obo$b3o3bobobobo3b3o$o3bo4bobo4bo3bo$bo7bobo7bo$8bobobo$8bobobo2$10bo$9bobo$7b2o3b2o$7b2o3b2o$6bo7bo$9bobo$4b2o3bobo3b2o$5bobobobobobo$4bo4bobo4bo3$6b2o5b2o$6bo7bo$6bobo3bobo$8bo3bo$7bo5bo$5b3o5b3o$6bo2bobo2bo$7b2o3b2o3bo$16bobo$16bobo$15bo$15b2o$14bo2bo$15b2o$19b2o$20bo$18bobo$18bo$19bo$19b3o$17bo2bo$18b2o!

Also, here are three other 2c/6 ships:
x = 119, y = 46, rule = B3/S235bo17bo31bo17bo21bo17bo$b3ob3o13b3ob3o23b3ob3o13b3ob3o13b3ob3o13b3ob3o$o6b2o11b2o6bo21bo6b2o11b2o6bo11bo6b2o11b2o6bo$b2o3bo2bo9bo2bo3b2o23b2o3bo2bo9bo2bo3b2o13b2o3bo2bo9bo2bo3b2o2$10b2o5b2o41b2o5b2o31b2o5b2o$10bob2ob2obo41bob2ob2obo31bob2ob2obo$9b2o7b2o39b2o7b2o29b2o7b2o$11bo5bo43bo5bo33bo5bo$11bobobobo43bobobobo33bobobobo$12b5o45b5o35b5o$11b2obob2o43b2obob2o33b2obob2o$12bo3bo45bo3bo35bo3bo$11bo5bo43bo5bo33bo5bo$9b3o5b3o39b3o5b3o29b3o5b3o$8b2obobobobob2o37b2obobobobob2o27b2obobobobob2o$7bo3b2obob2o3bo35bo3b2obob2o3bo25bo3b2obob2o3bo2$10bobo3bobo41bobo3bobo31bobo3bobo$11b2o3b2o43b2o3b2o33b2o3b2o$11bobobobo43bobobobo33bobobobo$8b2obobobobob2o42bobo37bobo$8b2obobobobob2o42bobo37bobo$11bobobobo44b2ob2o35b2ob2o$10bo2bobo2bo$8b3obo3bob3o41b2ob2o35b2ob2o$14bo46bobobobo33bobobobo$7b2o3b5o3b2o38b2o5b2o31b2o5b2o$6bo6b3o6bo34bo2b3o3b3o2bo25bo2b3o3b3o2bo$9b2o2bobo2b2o37b2o2b2o3b2o2b2o25b2o2b2o3b2o2b2o$7bo3b2o3b2o3bo34bob2o9b2obo23bob2o9b2obo$8bo11bo37bo11bo27bo11bo$12b2ob2o40bo13bo25bo13bo$7b2o3bo3bo3b2o38b3o3b3o31b3o3b3o$59bo2bo3bo2bo29bo2bo3bo2bo$9bo9bo38bo11bo27bo11bo$7b2o11b2o37b2o7b2o29b2o7b2o$7bobo9bobo$60bob2ob2obo31bob2ob2obo$60bo2bobo2bo31bo2bobo2bo2$61b2o3b2o33b2o3b2o$61b2o3b2o33b2o3b2o$61bo5bo33bo5bo$101b2o3b2o$101bo5bo!
-Matthias Merzenich
Sokwe
Moderator

Posts: 1473
Joined: July 9th, 2009, 2:44 pm

May I post random partials from zfind here?
If you're the person that uploaded to Sakagolue illegally, please PM me.
x = 17, y = 10, rule = B3/S23b2ob2obo5b2o$11b4obo$2bob3o2bo2b3o$bo3b2o4b2o$o2bo2bob2o3b4o$bob2obo5bo2b2o$2b2o4bobo2b3o$bo3b5ob2obobo$2bo5bob2o\$4bob2o2bobobo!

(Check gen 2)

Saka

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