## Small Spaceship Syntheses

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

### Re: Small Spaceship Syntheses

Asymmetric pre-pulsar ship in 1,161 gliders (assuming LifeWiki has the minimal synthesis):
`x = 2885, y = 2723, rule = 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Only the last 2 steps are shown because everything else is the same.
"Build a man a fire and he'll be warm for a day. Set a man on fire and he'll be warm for the rest of his life."

-Terry Pratchett

toroidalet

Posts: 998
Joined: August 7th, 2016, 1:48 pm
Location: my computer

### Re: Small Spaceship Syntheses

toroidalet wrote:Asymmetric pre-pulsar ship in 1,161 gliders (assuming LifeWiki has the minimal synthesis):
`RLE`

Only the last 2 steps are shown because everything else is the same.

Mark Niemiec's site has a 4G method of creating the skewed pre-pulsar:
`x = 69, y = 31, rule = B3/S2338bo\$37bo\$37b3o4bo\$43bo\$24bo18b3o\$25bo\$23b3o4bo\$31bo\$29b3o13\$9bo7bo\$3b2obobob2o3b2obobob2o\$3obob3o9b3obob3o24bo7bo\$o3bobo5bobo5bobo3bo18b2obobob2o3b2obobob2o\$4b2o6bobo6b2o19b3obob3o9b3obob3o\$b2o9bobo9b2o16bo3bobo5bobo5bobo3bo\$b2ob2o15b2ob2o20b2o6bobo6b2o\$5bo15bo21b2o9bobo9b2o\$43b2ob2o15b2ob2o\$47bo15bo!`

As well as a 4G for the symmetric and a 6G for the glide symmetric:
`x = 69, y = 59, rule = B3/S2344bo\$43bo\$23bo19b3o\$21bobo\$22b2o9\$26bo\$24bobo17bo\$25b2o16bo\$43b3o35\$9bo7bo33bo7bo\$3b2obobob2o3b2obobob2o21b2obobob2o3b2obobob2o\$3obob3o9b3obob3o15b3obob3o9b3obob3o\$o3bobo5bobo5bobo3bo15bo3bobo5bobo5bobo3bo\$4b2o6bobo6b2o23b2o6bobo6b2o\$b2o9bobo9b2o17b2o9bobo9b2o\$b2ob2o15b2ob2o17b2ob2o15b2ob2o\$5bo15bo25bo15bo!`

`x = 100, y = 59, rule = B3/S2375bo\$74bo\$54bo19b3o\$52bobo\$53b2o9\$57bo\$55bobo17bo\$56b2o16bo\$74b3o15\$4bo\$4bobo\$4b2o\$2bo\$obo59b2o\$b2o58bo2bo\$62b2o14\$40bo7bo33bo7bo\$34b2obobob2o3b2obobob2o21b2obobob2o3b2obobob2o\$31b3obob3o9b3obob3o15b3obob3o9b3obob3o\$31bo3bobo5bobo5bobo3bo15bo3bobo5bobo5bobo3bo\$35b2o6bobo6b2o23b2o6bobo6b2o\$32b2o9bobo9b2o17b2o9bobo9b2o\$32b2ob2o15b2ob2o17b2ob2o15b2ob2o\$36bo15bo25bo15bo!`

EDIT: I'd also like to point out that the current pre-pulsar syntheses still use an obsolete 581G rather than the current best 567G for the second spider, meaning all three of these should be able to be reduced by another 14 gliders.
Ian07

Posts: 279
Joined: September 22nd, 2018, 8:48 am

### Re: Small Spaceship Syntheses

toroidalet wrote:Asymmetric pre-pulsar ship in 1,161 gliders (assuming LifeWiki has the minimal synthesis):

Only the last 2 steps are shown because everything else is the same.

I've opened merge request 37 with this synthesis: https://gitlab.com/parclytaxel/Shinjuku ... s/37/diffs
What do you do with ill crystallographers? Take them to the mono-clinic!

calcyman

Posts: 2072
Joined: June 1st, 2009, 4:32 pm

### Re: Small Spaceship Syntheses

3G activation of symmetric PPS:
`x = 51, y = 69, rule = B3/S234b2o\$b2o2bo\$b2o2bo\$6bo\$bob4o\$2obo\$4b3o\$5bo\$5b2o\$7bo\$6bo\$6bo\$2b3o2\$2b3o\$6bo\$6bo\$7bo\$5b2o\$5bo19bo\$4b3o16bobo\$2obo20b2o\$bob4o\$6bo\$b2o2bo\$b2o2bo\$4b2o8\$49bo\$50bo\$48b3o3\$48b2o\$49b2o\$48bo\$4b2o\$b2o2bo\$b2o2bo\$6bo\$bob4o\$2obo\$4b3o\$5bo\$5b2o\$7bo\$6bo\$6bo\$2b3o2\$2b3o\$6bo\$6bo\$7bo\$5b2o\$5bo\$4b3o\$2obo\$bob4o\$6bo\$b2o2bo\$b2o2bo\$4b2o!`

I tried adding a beehive to this particular synthesis to make the glide-symmetric in 5G, but no luck. Here's a full list of all 77 pulsar syntheses in the 3G database if anyone else wants to try:
`x = 3815, y = 23, rule = B3/S233bo48bo59bobo37bo47bobo49bo48bo48bo52bo46bo6b3o41bo48bo54bobo48bo48bo45bo49bo53bo48bo45bo8bo41bo49bo54bo44bo49bo51bo62bobo32bo49bo49bo49bo58bo49bobo46bo49bobo40bo52bo46bo47bo50bo49bo51bo46bo49bo49bobo49bo47bobo52bo48bobo49bo48bo49bobo44bo52bo51bo49bo50bo50bo41bo48bo51bo48bo56bo44bo49bo50bo49bo49bo45bo49bo49bo49bo49bo50bo50bo13bo49bo46bo\$4bo48bo58b2o36bobo48b2o47bobo48bobo47b2o51b2o45b2o4bo43bobo47b2o52b2o50bo48bo45bo49bo53bo47bobo44b2o5bo43bo49bo48bo4bobo43bo49bo51b2o60b2o34bo49bo49bo49bo57bobo47b2o47bobo47b2o42bo51bobo45b2o46b2o49bo49bo51bo46b2o48b2o48b2o47bobo48b2o50b2o49b2o48b2o49bobo47b2o43bobo53bo49bo50bobo47bo49b2o43bo48b2o47bobo49bo55bobo43b2o48b2o49b2o48b2o48b2o44b2o48b2o48b2o48b2o48b2o49bo3bo43bobo14bo49bo32bo13bo\$2b3o46b3o59bo37b2o48bo49b2o48b2o47b2o51b2o45b2o6bo42b2o47b2o54bo48b3o42b2o2b3o43b3o4b2o41b3o47b2o2b3o47b2o44b2o6b3o39b3o47b3o49bo3b2o42b3o9bo37b3o8b2o40b2o46bo15bo32b3o47b3o47b3o47b3o48bo8b2o39bo9bo47b2o49bo40b3o51b2o45b2o46b2o48b3o8bobo36b3o9bo39b3o45b2o48b2o49bo49b2o48bo52b2o49bo49b2o48b2o49bo44b2o51b3o49b3o48b2o48b3o48b2o40b3o47b2o49b2o47b3o55b2o43b2o48b2o49b2o48b2o48b2o44b2o48b2o48b2o48b2o48b2o48b3o2bo45b2o12b3o47b3o33b2o9b3o\$100bo454b2o144b2o54bobo91b2o247b3o57b2o48b2o90bo249bo49bo48bo49bo203bo55b2o48b2o1642b3o142b2o\$101b2o197bo53b2o45bo6b2o45b2o43bo53b2o144bo56bo92bo8bo40bo54bo49b2o48b2o104b2o49bo38bo48b3o64bo182b3o47b3o49bo49bo97bo104b2o47b3o5bo41b3o4bobo645bo498bo49bo50bo49bo49bo45bo49bo49bo49bo49bo\$bo48b2o48b2o111bo52bo34b2o50b2o47bo4b2o45b2o45b2o53bo45bo51b3o51bo45bo49bo53b2o41b2o51b2o48b2o48b2o96b2o48b2o48bo100b2o11b2o35b2o48bobo47bobo49bo49bo44b3o47b3o48bo49b2o101bobo49bo49bo49b2o599b2o497b2o48b2o49b2o48b2o48b2o44b2o48b2o48b2o48b2o48b2o48bo62b3o47b3o42b2o\$b2o48b2o161bo52bo32b2o53bo44b3o6bo46bo43b2o101bo50bo52b2o44b2o48b2o53bobo39b2o52bobo49bo49bo46b2o47bobo47bobo45b3o99bobo11bobo33bobo48b2o48b2o50b2o48b2o48bo49bo45b2o47b2o3bo149bo49bo44b2o3b2o601b2o497b2o48b2o49b2o48b2o48b2o44b2o48b2o48b2o48b2o48b2o47b2o63bo49bo42bobo\$obo47bo6b3o44bo107b3o50b3o237b2o47b2o45b3o51bo51bobo43bobo47bobo2b3o291b2o48bo49bo100b2o49bo49bo49bo49bo49bobo47bobo48b2o48b2o43bobo52b2o244b2o4bo592b3o999bobo62bo49bo43bo\$57bo46b2o198b2o47b2o149b2o47bobo252bo96bo145b3o50bo197bobo195b2o152bobo47bobo97bobo243bo552bo48bo48bo49bo49bo49bo50bo49bo49bo48bo49bo\$58bo44bobo197b2o47bobo151bo48bo253bo94b2o100b2o43bo199b2o51bo103b3o90b2o347bo753bo46bo50bo49bo49bo49bo50bo49bo49bo48bo49bo\$7b2o203b2o51b2o38bo48bo245b3o48bo252bobo99bobo43bo197bobo155bo43b3o45bo252b3o95b2o249bo50bo49bo50bo49bo46bo49bo49bo49bo49bo50b3o95b3o47b3o47b3o47b3o48b3o47b3o47b3o46b3o47b3o\$7bobo203b2o51b2o332bo50b2o353bo245bo156bo42bo300bo96b2o3bo46b2o199bo50bo49bo50bo49bo46bo49bo49bo49bo49bo\$7bo204bo52bo335bo48bobo800bo300bo100b2o46b2o196b3o48b3o47b3o48b3o47b3o44b3o47b3o47b3o47b3o47b3o54bo97bo49bo49bo49bo50bo49bo49bo48bo49bo\$1854bobo45bo702b2o96b2o48b2o48b2o48b2o49b2o48b2o48b2o47b2o48b2o\$2606b2o96b2o48b2o48b2o48b2o49b2o48b2o48b2o47b2o48b2o\$176bo1925b2o49b2o48b2o49b2o48b2o45b2o48b2o48b2o48b2o48b2o\$177bo1924bobo48bobo47bobo48bobo47bobo44bobo47bobo47bobo47bobo47bobo\$175b3o1924bo50bo49bo50bo49bo46bo49bo49bo49bo49bo\$3151b2o98b2o48bo103b2o99b2o49bo193b2o\$3150bobo47b3o47bobo48b2o47b3o52bobo47b3o48bobo47b2o48b3o141bobo\$175b2o2975bo49bo49bo47bobo49bo52bo49bo50bo49bobo47bo145bo\$176b2o3023bo149bo104bo150bo\$175bo!`
Ian07

Posts: 279
Joined: September 22nd, 2018, 8:48 am

### Re: Small Spaceship Syntheses

This works:
`x = 37, y = 73, rule = B3/S233bo\$bo2bo2\$o3b2o\$b5o\$2bo\$b6o\$bo3bo\$bo3bo\$5bo\$3bob2o\$3bo2bo\$2b5o\$2b2obo\$3b2o2\$3b2o\$2b2obo\$2b5o\$3bo2bo\$3bob2o\$5bo\$bo3bo\$bo3bo\$b6o\$2bo\$b5o\$o3b2o29bo\$34bo\$bo2bo21bo7b3o\$3bo22bobo\$26b2o6\$15bo\$14bobo6bo\$14bobo5b2o\$15bo6bobo2\$3bo\$bo2bo2\$o3b2o\$b5o\$2bo\$b6o\$bo3bo\$bo3bo\$5bo\$3bob2o\$3bo2bo\$2b5o\$2b2obo\$3b2o2\$3b2o\$2b2obo\$2b5o\$3bo2bo\$3bob2o\$5bo\$bo3bo\$bo3bo\$b6o\$2bo\$b5o\$o3b2o2\$bo2bo\$3bo!`

According to synthesise-constellation.py, no 3G collision can activate the glide-symmetric PPS (unless it uses the sparks of the spiders).
"Build a man a fire and he'll be warm for a day. Set a man on fire and he'll be warm for the rest of his life."

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toroidalet

Posts: 998
Joined: August 7th, 2016, 1:48 pm
Location: my computer

### Re: Small Spaceship Syntheses

toroidalet wrote:According to synthesise-constellation.py, no 3G collision can activate the glide-symmetric PPS (unless it uses the sparks of the spiders).

I found this 4G method:

`x = 55, y = 69, rule = B3/S234b2o\$b3ob2o\$b2o2b2o\$bobo2bo\$2ob4o\$2obo\$4b3o2\$5b2o\$5bobo\$6b2o\$3bobo\$3bo2\$3bo\$3bobo\$6b2o44bo\$5bobo44bobo\$5b2o45b2o2\$4b3o\$2obo\$2ob4o\$bobo2bo\$b2o2b2o\$b3ob2o\$4b2o4\$28bo\$26b2o\$27b2o10\$4b2o\$b3ob2o\$b2o2b2o\$bobo2bo19b3o\$2ob4o19bo\$2obo23bo\$4b3o37bo\$43b2o\$5b2o36bobo\$5bobo\$6b2o\$3bobo\$3bo2\$3bo\$3bobo\$6b2o\$5bobo\$5b2o2\$4b3o\$2obo\$2ob4o\$bobo2bo\$b2o2b2o\$b3ob2o\$4b2o!`

Goldtiger997

Posts: 531
Joined: June 21st, 2016, 8:00 am
Location: 11.329903°N 142.199305°E

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