For discussion of specific patterns or specific families of patterns, both newly-discovered and well-known.
bubblegum
Posts: 896
Joined: August 25th, 2019, 11:59 pm

### Re: Still Life Synthesis Thread

xs12_0j96z346 (long³ integral) also has a 7G synthesis now:

Code: Select all

``````x = 101, y = 31, rule = B3/S23
15bo\$14bo\$14b3o82bo\$98bo\$o97b3o\$b2o42b3o\$2o\$5bo37bo5bo\$4b2o37bo5bo\$4bo
bo36bo5bo2\$45b3o11bo\$59bo\$59bo4\$73bo\$68b2o2b2o\$67bobo2bobo\$69bo8\$56bo\$
56b2o\$55bobo!
``````
Ripped from 5Glider_stdin (TL+blinker+B), simplified and a 1G cleanup tacked on.

EDIT: xs12_31eg8426 (cis-long² hook with nine) in 6G from 5Glider_stdin (pi+blinker+G) with 1G cleanup:

Code: Select all

``````x = 80, y = 60, rule = B3/S23
65bobo\$65b2o\$66bo30\$48bo\$49bo\$bo45b3o\$2bo40b3o\$3o42bo9b3o\$44bo2\$3b2o\$
2bobo\$4bo16\$77b2o\$77bobo\$77bo!``````
Each day is a hidden opportunity, a frozen waterfall that's waiting to be realised, and one that I'll probably be ignoring
sonata wrote:
July 2nd, 2020, 8:33 pm
conwaylife signatures are amazing[citation needed]
anything

MathAndCode
Posts: 4493
Joined: August 31st, 2020, 5:58 pm

### Re: Still Life Synthesis Thread

This might yield a converter.

Code: Select all

``````x = 13, y = 11, rule = B3/S23
4bo\$3bobo5b2o\$4b3o3b2o\$12bo4\$2b2o\$3bo\$3o\$o!``````

Edit:

Code: Select all

``````x = 23, y = 25, rule = B3/S23
2bo\$3bo\$b3o\$11bo\$11bobo\$11b2o8\$2b2o\$3bo14b2o\$3o14b2o\$o18bo4\$21bo\$20b2o
\$b2o17bobo\$2b2o\$bo!``````

Another edit:

Code: Select all

``````x = 23, y = 25, rule = B3/S23
2bo\$3bo\$b3o\$11bo\$11bobo\$11b2o8\$2b2o\$3bo14b2o\$3o14b2o\$o18bo4\$21bo\$20b2o
\$b2o17bobo\$2b2o\$bo!
[[ PASTEMODE XOR PASTET 38 PASTE o! 2 12 ]]``````
I have historically worked on conduits, but recently, I've been working on glider syntheses and investigating SnakeLife.

iNoMed
Posts: 140
Joined: August 29th, 2020, 3:05 pm
Location: Scotland

### Re: Still Life Synthesis Thread

xs14_09fg4cz321 in 6G (Down from 9G):

Code: Select all

``````x = 91, y = 91, rule = B3/S23
2bo\$obo\$b2o28\$11bo\$12b2o\$11b2o34bo\$46bo\$46b3o12\$44b3o\$31b2o11bo\$30bobo
12bo\$32bo39\$88b2o\$88bobo\$88bo!``````
The improvement doesn't come from the usage of the 4G_stdin collision (Both syntheses use this exact glider-collision), but from a massive improvement on the cleanup process (To clarify, the previous synthesis took out the B-heptomino in 2G and the ash-cloud in 3G).

Code: Select all

``````x = 35, y = 5, rule = B3/S23
4b2o3b2o3bo3b2ob2o3b2ob2o\$2o2bobo3bo2bobobobobobobobobobo\$obobo2bo2bob
o2bobo2bo2bobo3bobo\$2bobo3bobobobo2bo5bobo3bobob2o\$b2ob2o3b2ob2o3b2o3b
2ob2o3b2ob2o!``````

MathAndCode
Posts: 4493
Joined: August 31st, 2020, 5:58 pm

### Re: Still Life Synthesis Thread

MathAndCode wrote:
February 10th, 2021, 3:36 pm
Another edit: Here's a more feasible-looking possibility:
I got it to work.

Code: Select all

``````x = 44, y = 46, rule = B3/S23
39bobo\$39b2o\$40bo2\$38bo\$37bo\$34bo2b3o\$32b2o\$33b2o2\$21b2o\$6b2o13bo\$6b2o
11bobo\$5bo13b2o\$5bo\$5bo8\$17bo\$15b2o\$16b2o2\$36b2o\$36bobo\$36bo\$42b2o\$41b
2o\$28b2o13bo\$27b2o\$29bo6b3o\$36bo\$37bo3\$4b3o\$6bo\$5bo2\$2o\$b2o\$o!``````
I have historically worked on conduits, but recently, I've been working on glider syntheses and investigating SnakeLife.

cgoler2
Posts: 147
Joined: March 10th, 2021, 2:32 pm

### Re: Still Life Synthesis Thread

Boat predecessor + pi = unnamed still life:

Code: Select all

``````x = 4, y = 7, rule = B3/S23
2obo\$b2o\$2bo2\$3o\$2bo\$3o!``````

mniemiec
Posts: 1271
Joined: June 1st, 2013, 12:00 am

### Re: Still Life Synthesis Thread

cgoler2 wrote:
March 19th, 2021, 11:48 am
Boat predecessor + pi = unnamed still life: ...
This 5-glider synthesis, using this same exact mechanism, was found by
Extrementhusiast on 2015-11-11. Since then, a four-glider synthesis (using an equivalent predecessor) was found:

Code: Select all

``````x = 80, y = 16, rule = B3/S23
45bo\$43bobo\$44boo\$20bo\$18boo\$19boo\$bo\$bbo10bo\$3o3bo7boo34b3o\$7bo5boo
35bo\$5b3o43bo6bo\$32boo24bobo11boo\$32bobo3boo13b3obboo12bobo3boo\$6b3o
25bo4bo13bo20bo4bo\$8bo25bob3o15bo19bob3o\$7bo27boo38boo!
``````

May13
Posts: 63
Joined: March 11th, 2021, 8:33 am

### Re: Still Life Synthesis Thread

I found a 11G synthesis for xs29_69b8bbgz69d1dd (two blocks on long longhorn?)
From left to right: soup from Catagolue, predecessor, 15G (my first try) and 11G

Code: Select all

``````x = 273, y = 58, rule = B3/S23
221bo\$222bo\$220b3o5\$266bo\$266bobo\$141bo124b2o\$139b2o\$140b2o\$94bobo\$95b
2o\$95bo\$270bobo\$270b2o\$271bo\$113bobo\$113b2o\$114bo3\$102bobo\$103b2o\$3o5b
ob2o2bo88bo\$b2o12bo\$4b3o3b3o42b2o105b4o\$4o2bobo2bob3o37bo2bo5b2o98bo3b
o\$3o3b2ob4obo38b3o6b2o35bo62bo\$b3o2bo2bob5o38bo42bobo63bo2bo\$bo2b2ob2o
b2obobo32bo49b2o\$b5ob2obobobo33bo\$2o2b2ob6o35bo190b2o15b2o\$4obo2b2o4b
2o222bobo15bobo4b2o\$3o3bob8o39b2o183bo15bo6bobo\$2b3ob2o2bo3b2o38bo2bo
190b2o13bo\$7b2o2bob3o39b2o3b3o161b2o22bobo\$bo4b3o108b2o106b2o21bo\$o2b
4ob3o2b3o101bobo104bo\$ob3o2b4o3bo102bo3\$98b3o\$100bo3b2o111bo\$99bo3bobo
111b2o\$105bo110bobo\$119b2o130b2o\$119bobo128b2o\$119bo132bo15b2o\$139b2o
126b2o\$139bobo127bo\$139bo\$102b2o\$103b2o\$102bo25bo\$127b2o\$127bobo!
``````
I have not found synthesis for this still life on Catagolue. Is this really the first known?
Edit: Another synthesis, 12G for xs29_8e1t6gzwqb0t552zx11

Code: Select all

``````x = 404, y = 115, rule = B3/S23
346bo\$346bobo\$346b2o9bo\$357bobo\$357b2o4\$292bo\$290bobo\$291b2o2\$371bo\$
370bo\$370b3o21\$167b2o\$166bo2bo\$166bobo\$167bo4\$177b3o\$171b2o\$2o3b2ob3ob
2obo155b2o\$5ob6o\$3o6b3obo\$3o3bobob3o2bo169b3o\$b2o4b2o3bob2o169bo\$2b2ob
obobob2obo170b3o\$6bobo2b3obo\$5o7b2o\$4b2o2b4o\$2bobob2o6b2o154b2o\$b2obo
3bo4b2o154bo2bo\$10b3o2bo154b2o\$b3obo2b4ob2o\$o3bobob2o2bob2o\$b2o3b3o3bo
\$2obo3bo2bo2b3o\$284b3o\$286bo\$285bo3\$357b3o\$357bo\$358bo2\$288b2o\$287bobo
\$289bo2\$366b3o\$366bo\$367bo3\$290b2o\$289bobo\$291bo\$207b3o141b2o\$207bo
143bobo\$208bo142bo5\$222b3o\$222bo\$223bo15\$386b3o\$386bo\$387bo5\$401b3o\$
401bo\$402bo!
``````
Edit 2: 22G synthesis for xs24_3pm0u156zw3453

Code: Select all

``````x = 604, y = 457, rule = B3/S23
494bobo\$493bo\$493bo\$493bo2bo\$493b3o138\$322bo\$323bo\$321b3o17\$318bo\$319b
o\$317b3o11\$323bo\$324bo\$322b3o36\$559bo\$559bobo\$559b2o48\$567bo\$567bobo\$
567b2o27\$460bo\$461bo\$459b3o\$503bo\$502bo\$502b3o3\$514bo\$504bo7b2o\$504bob
o6b2o\$504b2o4\$ob4obob3ob3o419bobo\$4bo2bo2b3o2bo420b2o\$b3obo9bo420bo\$3b
o3b3ob3obo\$b3ob2o3bo3b2o\$3bo3b5ob3o\$2b7obo3bo\$2b3ob3ob4obo\$bo7bo3b2o\$o
b2o3bob2obobo\$o3bo7b4o\$b5o7b3o\$obo5b3o3b2o\$obob2ob2o3bo433bo\$2bobob8o
433bo\$o3b4ob2ob4o429b3o42\$515b2o\$504bo10bobo\$503b2o10bo\$503bobo63b3o\$
569bo\$570bo9\$433b2o\$434b2o\$433bo4\$507b2o\$507bobo\$507bo39\$602bo\$601b2o\$
601bobo12\$384b3o\$386bo\$385bo14\$373b3o\$375bo\$374bo!
``````
Edit 3: 22G synthesis for xs33_2llmggozra0s2qicz011

Code: Select all

``````x = 410, y = 195, rule = B3/S23
392bo\$391bo\$391b3o6\$408bo\$407bo\$407b3o18\$200bo\$201b2o\$200b2o6\$341bo\$
339b2o\$340b2o2\$253bo\$254b2o\$244bo8b2o\$245bo\$243b3o92bo\$338bobo\$338b2o\$
273bo\$271bobo\$272b2o\$259bo\$260bo\$258b3o2\$340bo\$339bo\$265bo73b3o\$266bo\$
264b3o17\$328bo\$327bo\$327b3o13\$bobo2b3o3bobo\$ob3obob7o\$5ob3o2bo\$b2ob3o
2b4o\$ob5o3bob2o\$bo3b4ob2obo\$obo2bo2b2o4bo\$obobo2bobob2o2bo\$obo3bobob2o
2b2o\$2o2bo3bo2bobobo\$4o3bo2bo4bo\$o2bob3o2b2ob2o\$2obob3o4bo\$6o2bobobo2b
o\$b2ob2obo4b2o\$b2o6bo2b2obo17\$342b3o\$342bo\$343bo2\$264b2o13b2o\$263bobo
12bobo\$265bo14bo\$240b3o12b3o\$242bo14bo\$241bo14bo9\$321b2o\$321bobo\$321bo
\$254b2o\$253bobo\$255bo6\$255b3o\$257bo\$256bo2\$341b3o\$341bo\$342bo35\$230b3o
\$232bo\$231bo!
``````
Edit 4: 10G synthesis for xs22_cq1e853z122156

Code: Select all

``````x = 268, y = 106, rule = B3/S23
161bo\$162bo\$160b3o6\$254bo\$253bo\$253b3o12\$2ob2obo2b3o2b2o\$ob5obo2bo\$2ob
4obo2b2ob2o\$3ob4o7bo\$2o11bobo\$2bobobobo2b2ob2o\$bo2b3obob2ob2o\$b3o2b2ob
o\$6bo2bob2obo\$4o2bo3bo3b2o\$b3o4bo3bo2bo\$bo2b3o2bob3obo230bobo\$obo2b2ob
ob2o234b2o\$b2o2bo2bo4b3o231bo\$2ob2obo2b2o2b3o\$3o5bo3bo2bo21\$256b2o\$
240b2o14bobo\$240bobo13bo\$240bo2\$192b2o\$193b2o\$192bo8\$235b2o\$235bobo\$
235bo\$189b2o\$188bobo\$190bo5\$200b3o\$202bo\$201bo18\$266bo\$265b2o\$265bobo!
``````
Edit 5: 11G synthesis for xs26_2ll6o8gz8llc321 and related 12G for 24-bit still life

Code: Select all

``````x = 705, y = 186, rule = B3/S23
547bo\$548bo\$546b3o8\$198bo\$199bo\$197b3o6\$570bo\$571bo\$569b3o8\$221bo\$222b
o\$220b3o28\$599bo\$599bobo\$599b2o\$594bo\$592bobo\$593b2o4\$596bobo\$250bo
346b2o\$250bobo344bo11bo\$250b2o357bobo\$o2b4obob3ob2o229bo363b2o\$2o3b2ob
obo2b3o227bobo\$3b3obo2bobo2bo228b2o\$bobo2b6o\$ob3ob4ob2ob2o572bobo\$8b2o
bo3bo573b2o\$5bob3o3bo233bobo339bo\$obobob3o2b2o2bo232b2o\$2b2o2b2o4bob2o
232bo11bo\$bo6b2o250bobo334b3o\$b2obob2o3b2obo245b2o337bo\$o2bobobob4o2bo
577bo4bo\$7bo2b4obo577b2o\$o3b2ob4ob2obo576bobo\$obo3b2obob2o226bobo\$3b2o
2bo2b6o224b2o\$240bo3\$248b3o\$250bo\$244bo4bo\$244b2o\$243bobo68\$528b3o\$
530bo\$529bo8\$179b3o\$181bo515b2o\$180bo515b2o5bo\$698bo3b2o\$702bobo7\$353b
o\$352b2o\$352bobo!
``````

MathAndCode
Posts: 4493
Joined: August 31st, 2020, 5:58 pm

### Re: Still Life Synthesis Thread

May13 wrote:
March 19th, 2021, 10:24 pm
I found a 11G synthesis for xs29_69b8bbgz69d1dd (two blocks on long longhorn?)
I have not found synthesis for this still life on Catagolue. Is this really the first known?
Nice work. In general, if Catagolue doesn't have a synthesis of an object, the chances are that that object hasn't been synthesized yet. I do have several improvements to list, though.
1. Stage your syntheses: To stage a synthesis means to divide it into multiple parts. In general, it's a good idea to stage syntheses as much as possible without increasing the total cost. There are several reasons for this.
1. Automated improvements: When a staged synthesis is uploaded to Catagolue, Catagolue does not interpret it has a single synthesis but instead as a chain of ways to get from one apgcode to the next. For example, Catagolue would view your non-staged synthesis as a way to get from a vacuum (xs0_0) to xs29_8e1t6gzwqb0t552zx11, while in the following staged synthesis, it would view the first step as a way to get from a vacuum to a block (xs4_33), the second step as a way to get from a block to the constellation xp2_033ze, the third step as a way to get from the constellation xp2_033ze to the constellation xp2_6952zy1ooy1e, etc…

Code: Select all

``````x = 334, y = 35, rule = B3/S23
138b2o\$137bo2bo\$137bobo\$138bo\$50bobo48bobo82b2o\$50b2o49b2o82bo2bo65bo
\$51bo50bo46bo35bobo66b3o\$149bo36bo61b2obo5bo58bo\$4bo137b2o5bo97bobob5o
bo58b3o\$5bo136b2o103bo7b2o53b2obo5bo\$3b3o191bo50b3ob2o55bobob5obo\$197b
o52bobo56bo7b2o\$190b2o5bo16bo35bobo57b3ob2o\$190b2o22bobo34bo10b2o48bo
bo\$214b2o46b2o48bobo\$3o310bo10b2o\$2bo35b2o284b2o\$bo36b2o\$105bo\$51b2o52b
o\$50b2o31b2o13b2o5bo226b2o\$52bo31b2o12b2o110b2o119b2o\$83bo105b2o19bob
o120bo\$139bo48bo2bo18bo\$139b2o48b2o\$138bobo126bo\$149bo116bobo3b2o\$148b
2o116b2o4b2o\$148bobo4\$277bo\$276b2o\$276bobo!``````
I have submitted that synthesis to Catagolue, but I know that once Catagolue updates, it will not use that synthesis of the constellation xp2_033ze because it already has a three-glider synthesis, which can be viewed at its Catagolue page. (In fact, one doesn't even have to include a synthesis of the initial constellation as long as one has verified that Catagolue already has a synthesis of that constellation, which can save a little time.) This makes the synthesis of that constellation and every following object, including the final object one glider cheaper. This would not have happened had the synthesis not been staged. There's also a program that can search for more efficient cleanups of constellations, but these only work when the cleanup is in a separate stage from the region stage that makes the final object, and it's better when the cleanup is staged as much as possible (without making it more expensive).
2. Manual improvements: In addition to staging a synthesis making it easier for automated programs easier to find improvements, staging a synthesis also makes it easier (or at least more convenient) to make manual improvements. One of the reasons for this is because one only needs to submit the improvements for the relevant stages. As long as the synthesis is staged, if one finds an improvement to building the base constellation, one doesn't need to submit the cleanup again, and vice versa. Also, if the synthesis is staged, it's easier to analyze what's happening and see where improvements can be made. Syntheses that have been staged tend to be easier to for people to understand than syntheses that are all in one step. This is because in the latter type of synthesis, three or more things can be happening at the same time, and at the beginning, the entire pattern consists of a jumble of gliders at each corner, and it often isn't obvious which glider does what. The latter fact makes it more difficult to make improvements because if one wants to replace one glider with another (such as in order to reduce the cleanup cost), it may be difficult to figure out which glider to change the timing of, and the new glider may turn out to cross paths with another glider that could have been in a different stage, and sometimes trying to change the timing of that glider will cause more problems, either because one couldn't figure out which other gliders in the jumble of gliders at each corner had to be synchronized with it, so one re-timed the wrong gliders, or because one of the re-timed gliders now crosses paths with a glider from a step that could have been put in a third stage, etc….
3. Individual playback: I originally didn't stage my syntheses, and one of the reasons that I opted to change was because there were several times where I wanted to look at a particular part of the synthesis, but it was taking a while to get through synthesizing the base constellation, and if I sped up the playback speed, I would typically miss the part that I wanted to look at. This doesn't happen when the synthesis is staged because each stage is done separately and can therefore start right away instead of having to wait for previous stages to occur.
2. Clean up regions when they're small: It's easier to delete a region when it's small then after it has caused a large explosion. One example is when I deleted a pi-sequence with a single glider very early in its evolution instead of letting it create a large mess before beginning cleanup.

Code: Select all

``````x = 8, y = 5, rule = B3/S23
o\$b2o\$2o\$4b3o\$4bo2bo!``````
Also, in this example, notice how I cause the active region at the top to settle into a ship instead of letting it become a big mess.

Code: Select all

``````x = 47, y = 76, rule = B3/S23
39bo\$38bo\$38b3o11\$13bo\$13bobo\$13b2o2\$7bo\$5bobo\$6b2o7\$10b2o\$10b2o5\$10b
3o7\$17b2o\$16bo2bo\$16bobo\$12bo4bo\$12bo\$b2o9bo\$o2bo\$b2o5b3o3b3o2\$12bo\$12b
o\$12bo23\$45b2o\$44b2o\$46bo!``````
3. Only synthesize the relevant parts of a constellation: I noticed that at least one of your syntheses created some objects in the base constellation that were not necessary for the final object. It's a good idea to avoid this because it unnecessarily increases the glider cost. If you're unsure about whether or not an object is necessary, you can try removing it and seeing whether or not the reaction still works or observing the active region after it interacts with the object, tracking the active regions that the interacts with, etc…, and seeing whether it affects the final object by the time that it's made. Also, sometimes an object only serves as cleanup, in which case it can typically be replaced by a glider.
4. Try to use gliders as directly as possible: I noticed that one of your syntheses used a LWSS for cleanup. In general, you want to try to avoid doing this because LWSSes require three gliders each, and cleanup can typically be done more efficiently by using gliders directly. For example, here's a two-glider cleanup of the same constellation:

Code: Select all

``````x = 53, y = 15, rule = B3/S23
7bo\$6bobo\$6bobo36bo\$7bo36bobo\$4bo39bobo\$4bo40bo\$4bo\$2o\$2o2\$50b3o\$50bo
\$7b2o42bo\$6b2o\$8bo!``````
Also, if an object is only necessary for cleanup or a brief interaction, try to see if it can be replaced with a glider.
5. Keep an eye out for fast components: Sometimes, if the object is formed with enough clearance, one can use a fast component to modify the object formed slightly. You should try to do this when possible because fast components are often more efficient than their slow equivalents. Here's an example:

Code: Select all

``````x = 215, y = 75, rule = B3/S23
2bo\$3bo\$b3o\$79bo\$78bo\$78b3o\$bo\$2bo\$3o36\$44b2o\$43bo2bo81b2o5bo\$43bobo82b
o6b3o\$44bo85bobo5bo51b2o5bo\$129b2ob5obo51bo6b3o\$128bo7b2o54bobo5bo\$55b
o73b3ob2o56b2ob5obo\$55bo75bobo56bo7b2o\$48b2o5bo16bo58bobo57b3ob2o\$48b
2o22bobo57bo10b2o48bobo\$72b2o69b2o48bobo\$194bo10b2o\$205b2o4\$213b2o\$68b
2o142b2o\$47b2o19bobo143bo\$46bo2bo18bo\$47b2o\$148bo\$147bobo3b2o\$147b2o4b
2o5\$158bo\$157b2o\$157bobo!``````
The synthesis of the base constellation is included with the synthesis of the object without the fast component farther down in this post. I've attached a collection of fast components to this post for you to look at.
Here are my staged and (for some) improved versions of your other syntheses:

Code: Select all

``````x = 77, y = 23, rule = B3/S23
69bo\$20b2o37bo9bobo\$20b2o35bobo9b2o\$58b2o\$64bo\$62bobo\$63b2o4\$18b3o54b
2o\$75b2o\$3o\$2bo11bo\$bo11b2o45b3o\$13bobo2\$68b2o\$67bo2bo3bo\$68b2o4bo\$3b
3o68bo\$5bo\$4bo!``````

Code: Select all

``````x = 435, y = 114, rule = B3/S23
207bobo\$207b2o\$208bo4\$134bo\$135bo\$133b3o2\$141bo\$139bobo\$140b2o30\$165b
o\$b2o46b2o112b2o\$o2bo44bo2bo112b2o\$o2bo44bo2bo\$b2o46b2o\$43bobo\$44b2o\$
44bo107b2o\$151bo2bo11b2o\$151bo2bo11bobo175bo\$152b2o12bo178bo\$343b3o27b
2o\$41b2o263b2o65b2o\$42b2o262b2o\$41bo271bo96bo\$bobo307b2o98bo21b2o\$2b2o
49bo99bo158b2o36b3o56b3o18b2o2bo\$2bo49bobo98bo129b3o80b2o5b2o53b3ob2o
\$52bo2bo97bo145b2o5b2o55b2o2bo5b2o52bo\$53b2o241b2o2bo5b2o53b3ob2o60bo
b5o\$294b3ob2o60bo53b2o12b2o4bo\$293bo66bob5o47b2o16bobo\$7b2o147bo136bo
b5o47b2o12b2o4bo64b2o\$6b2o147bobo122b2o12b2o4bo46b2o16bobo\$8bo146bo2b
o121b2o16bobo64b2o\$156b2o140b2o39\$116bo\$116b2o\$115bobo3\$195bo\$194b2o\$
194bobo!``````

Code: Select all

``````x = 395, y = 76, rule = B3/S23
216bo\$215bo\$215b3o11\$108b2o80bo\$108b2o80bobo\$190b2o\$58b2o\$58b2o124bo\$
182bobo\$108b3o72b2o2\$271bo\$58b3o208bobo\$2o268b2o\$2o2\$115b2o70b2o203b2o
\$114bo2bo69b2o87b2o69bo40b2obo2bo\$114bobo158bobo68bo40bobobob2o\$3o62b
2o48bo159b2o69b3o38bo3bo\$10bobo51bo2bo320b3o2b2o\$10b2o52bobo32b2o293b
o\$11bo53bo32bo2bo85b3o138b2o58b6o\$99b2o223b2obo2bo57bo\$323bobobob2o11b
2o41bo5b3o\$323bo3bo14b2o41bo5bo2bo\$105b2o217b3o2b2o54bo6b2o\$106b2o222b
o\$105bo218b6o\$54b2o138b2o128bo\$2b2o49b2o59b2o77bo2bo124bo5b3o\$3b2o50b
o57b2o78bobo125bo5bo2bo48b2o\$2bo40b2o70bo73bo4bo74b2o50bo6b2o48bobo\$44b
2o143bo75b2obo2bo108bo\$43bo134b2o9bo74bobobob2o11b2o\$177bo2bo83bo3bo14b
2o\$178b2o5b3o3b3o71b3o2b2o\$271bo\$189bo75b6o\$189bo75bo\$189bo78b3o\$261b
3o4bo2bo\$269b2o21\$222b2o\$221b2o\$223bo!``````

Code: Select all

``````x = 201, y = 78, rule = B3/S23
122bo\$123bo\$121b3o4\$79bo\$78bo\$78b3o6\$81b2o\$81bobo\$81bo6\$173b3o3\$4bo\$2b
obo\$3b2o\$59b2o\$59b2o2\$173b2o\$173bobo\$71bo101bo\$71bo\$20bo50bo81b2o\$20b
o133b2o\$3o17bo46b3o3b3o77bo6b2o\$2bo157b2o\$bo14b3o3b3o46bo\$71bo\$20bo50b
o\$20bo151bo\$20bo151bo\$172bo2\$168b3o3b3o2\$172bo\$172bo\$172bo25\$199bo\$198b
2o\$198bobo!``````
Attachments
fast components.rle
I have historically worked on conduits, but recently, I've been working on glider syntheses and investigating SnakeLife.

bubblegum
Posts: 896
Joined: August 25th, 2019, 11:59 pm

### Re: Still Life Synthesis Thread

1 Check if you're improving a previous synthesis, or creating a new one. If you are creating a new one, it's fine to synthesise everything as lazily as possible, with the first thing that works. If you're improving a previous one and you can only get it close to the record, try looking at more advanced techniques such as using scripts to find syntheses.
2 If you have a bunch of stable ash to clean up, please clean everything up in one stage, instead of meticulously separating every glider (like M&C's example where they clean up the three ash objects in two stages). It just looks nicer if your content-including steps aren't squished by your cleanup. As well, if there's a large constellation to build, it's okay to condense it into fewer stages.
3 Try not to get too frustrated by synthesis tools, this can be pretty hard. (In particular, synthesise-patt and fast components generally have the most potential to give wrong results.)
4 Ask for help if you need any.
Each day is a hidden opportunity, a frozen waterfall that's waiting to be realised, and one that I'll probably be ignoring
sonata wrote:
July 2nd, 2020, 8:33 pm
conwaylife signatures are amazing[citation needed]
anything

May13
Posts: 63
Joined: March 11th, 2021, 8:33 am

### Re: Still Life Synthesis Thread

MathAndCode wrote:
March 21st, 2021, 1:02 am
Nice work. In general, if Catagolue doesn't have a synthesis of an object, the chances are that that object hasn't been synthesized yet. I do have several improvements to list, though.
bubblegum wrote:
March 21st, 2021, 1:15 am
Thanks for tips and improvements! My three new staged syntheses:

Code: Select all

``````x = 443, y = 124, rule = B3/S23
62bo\$55bo5bo\$53b2o6b3o\$51bo2b2o\$49bobo\$50b2o3\$4bo\$2bobo61bo\$3b2o60b2o\$
65bobo\$6b2o47b2o\$6bobo45bo2bo\$6bo47b2o2bo\$56b3o\$54b2o\$55bob2o\$7b2o46bo
2bo\$2o5bobo46b2o\$b2o4bo\$o24\$55bo35b2o\$54bo35bobo\$54b3o35bo3bo\$94b2o
107bo\$95b2o106bobo\$203b2o2b2o\$207bobo\$101b2o42bo5b2o42bo11bo\$93bo6bo2b
o40bobo3bo2bo40bobo6bo\$93b2o5bobo42bo4bobo42bo6bobo\$92bobo6bo49bo49bo
2bo\$46b2o154b2o\$3bo41bobo\$2bo44bo\$2b3o\$50bo49bo49bo49bo\$49bobo47bobo
47bobo42b2o3bobo\$49bobo47bobo47bobo41bo2bo2bobo\$50bo49bo49bo43b2o4bo\$
141b2o\$5b3o132bobo\$5bo136bo\$6bo141b2o\$148bobo\$148bo21\$358bo\$357bo\$357b
3o2\$421b2o\$417b2obo2bo\$417b2obob2o\$325bo94bo\$324bo92b3ob3o\$324b3o90bo
2bo3bo\$418bobobobo\$419b2ob2o2\$10bo206bobo104b2o\$11bo198b2o6b2o90b2o7bo
3b2o\$9b3o98b2o97bo2bo5bo90bo2bo5bobo4bo\$14b2o93bo2bo97bobo97bobo6b2o
100bo\$14bobo93bobo98bo6b3o90bo108bobo\$14bo96bo106bo202b2o\$219bo8\$215b
2o98b2o\$117bo96bobo97bobo\$113b2o2bobo95bo99bo\$114b2ob2o\$113bo326b3o\$
440bo\$441bo!
``````
And my first try to use fast component:

Code: Select all

``````x = 68, y = 31, rule = B3/S23
57bo\$55bobo\$52b2o2b2o\$51bobo\$15bo37bo11bo\$7bo6bobo40bo6bobo\$6bobo6bo
40bobo6bo\$6bo2bo46bo2bo\$7b2o48b2o4\$10bo49bo\$2bo6bobo3b2o42bobo3b2o\$obo
6bobo2bo2bo41bobo2bo2bo\$b2o7bo4b2o43bo4b2o2\$55b2o\$55b2o2\$9b2o\$9bobo\$9b
o6\$44bo\$44b2o\$43bobo!
``````
I have one question about my second synthesis:
It is possible to replace tub to glider or any 2G combination (for example, Pi or B heptomino), not 3G?
Edit: Another synthesis:

Code: Select all

``````x = 395, y = 100, rule = B3/S23
307bo\$306bo\$306b3o9\$361b2o\$360bo2bo\$359bob3o\$358bobo\$357bobo2b2o\$357bo
5bo\$358b5o2\$274bo85b3o\$272b2o5bo80bo2bo29bo\$273b2o3bo82bobo28bo\$278b3o
81bo29b3o\$270bo\$54bo213bobo\$54bobo212b2o\$54b2o\$48bo336b2o\$46bobo335bo
2bo\$47b2o231bo104b2o\$110b2o58b2o98b2o7b2o\$99bo9bo2bo56bo2bo96bo2bo6bob
o\$bo98bo9b2o58b2o98b2o\$o97b3o60b2o98b2o\$3o157bo2bo96bo2bo\$58bo59bo41bo
2bo14bo81bo2bo14bo\$57bobo57bobo41b2o14bobo81b2o14bobo\$57bobo57bobo57bo
bo97bobo\$58bo59bo59bo93bo5bo\$272bo\$3b3o92bo173bo\$3bo94b2o\$4bo92bobo3\$
165b2o\$164bobo\$166bo\$174b3o\$174bo\$175bo29\$227bo\$227b2o\$226bobo16\$214bo
\$214b2o\$213bobo!
``````

MathAndCode
Posts: 4493
Joined: August 31st, 2020, 5:58 pm

### Re: Still Life Synthesis Thread

May13 wrote:
March 21st, 2021, 9:10 pm
It is possible to replace tub to glider or any 2G combination (for example, Pi or B heptomino), not 3G?
Yes.

Code: Select all

``````x = 29, y = 19, rule = B3/S23
24bo\$6bo15b2o\$4bobo16b2o\$5b2o4\$b2o\$obo5bo\$2bo4bobo\$7bo2bo\$8b2o2\$26b2o
\$26bobo\$11bo14bo\$10bobo3b2o\$10bobo2bo2bo\$11bo4b2o!``````
Also, the loaf and traffic light predecessor are used to make an I-sequence, which is a common active region and therefore has a three-glider synthesis. Taking advantage of this saves another glider.

Code: Select all

``````x = 31, y = 27, rule = B3/S23
26bo\$24b2o\$25b2o4\$13bo\$12bo\$12b3o2\$7bo\$8b2o9bo\$7b2o9bo\$18b3o7b2o\$28bo
bo\$28bo\$2o\$b2o\$o\$15b3o\$15bo\$16bo6b2o\$23bobo\$23bo\$12b2o\$11bobo\$13bo!``````
The fast component that you still works with the new version of the synthesis, as does another.

Code: Select all

``````x = 131, y = 40, rule = B3/S23
32bo93bo\$30b2o92b2o\$31b2o92b2o4\$19bo93bo\$18bo93bo\$18b3o91b3o2\$13bo93b
o\$14b2o9bo82b2o9bo\$13b2o9bo82b2o9bo\$24b3o7b2o82b3o7b2o\$34bobo91bobo\$34b
o93bo\$6b2o92b2o\$7b2o92b2o\$6bo93bo\$21b3o91b3o\$21bo93bo\$22bo6b2o85bo6b2o
\$29bobo91bobo\$29bo93bo\$18b2o92b2o\$17bobo91bobo\$19bo93bo5\$24b3o70b2o\$24b
o71bobo\$3o22bo72bo\$2bo\$bo118b2o\$119b2o\$23b3o95bo\$23bo\$24bo!``````
The first synthesis uses a component that can be generalized to more still-lives.

Code: Select all

``````x = 319, y = 19, rule = B3/S23
13bo49bo49bo49bo49bo49bo49bo\$6bo5bo43bo5bo43bo5bo43bo5bo43bo5bo43bo5b
o43bo5bo\$4b2o6b3o39b2o6b3o39b2o6b3o39b2o6b3o39b2o6b3o39b2o6b3o39b2o6b
3o\$2bo2b2o45bo2b2o45bo2b2o45bo2b2o45bo2b2o45bo2b2o45bo2b2o\$obo47bobo47b
obo47bobo47bobo47bobo47bobo\$b2o48b2o48b2o48b2o48b2o48b2o48b2o4\$17bo49b
o49bo49bo49bo49bo49bo\$16b2o48b2o48b2o48b2o48b2o48b2o48b2o\$16bobo47bob
o47bobo47bobo47bobo47bobo47bobo\$6b2o48b2o48b2o48b2o48b2o48b2o48b2o\$5b
o2bo46bo2bo46bo2bo45bo2bo46bo2bo47bo2bo46bo2bo\$6b2o48bobo47bo2bo44b2o
48b3o48b3o48b3o\$57bo49b2o\$204b3o48b3o48b3o\$204bo2bo47bo2bo46bo2bo\$206b
2o48b2o48b2o!``````
Also, if one is clever, one can use it to turn a ship into a bookend by using a ship predecessor instead of a ship that is already there. This works at two timings when making the ship from a pond.

Code: Select all

``````x = 72, y = 24, rule = B3/S23
16bo49bo\$9bo5bo43bo5bo\$7b2o6b3o39b2o6b3o\$5bo2b2o45bo2b2o\$3bobo47bobo\$
4b2o48b2o4\$20bo49bo\$19b2o48b2o\$19bobo47bobo\$9b2o48b2o\$8bo2bo46bo2bo\$8b
o2bo46bo2bo\$9b2o48b2o6\$b2o48b2o\$obo49b2o\$2bo48bo!``````
There are a couple of fast components that can be used on another of your syntheses.

Code: Select all

``````x = 179, y = 55, rule = B3/S23
6bo\$4bobo\$5b2o14\$5bobo\$6b2o\$6bo3\$70bo\$69bo97b2o2b2o\$69b3o94bo2bo2bo2b
2o\$105b2o2b2o55bobo3bobo2bo\$104bo2bo2bo2b2o52bo3b2obob2o\$104bobo3bobo
2bo58bo\$105bo3b2obob2o55b3ob3o\$37bo74bo49bo8bo2bo3bo\$36bo72b3ob3o46b2o
8bobobobo\$36b3o70bo2bo3bo44bobo9b2ob2o\$110bobobobo\$111b2ob2o2\$36b2o\$22b
2o7bo3b2o\$21bo2bo5bobo4bo\$22bobo6b2o80bo\$23bo88bobo\$113b2o7\$3o\$2bo\$bo
25b2o\$26bobo\$27bo2\$132b3o\$132bo\$133bo!``````

Code: Select all

``````x = 134, y = 56, rule = B3/S23
48bo\$47bo\$2bo44b3o\$obo\$b2o18\$69bo\$68bo\$68b3o2\$108bo3b2o\$107bobobo2bo\$
108b2obob2o\$36bo74bo\$35bo72b3ob3o\$35b3o70bo2bo3bo\$109bobobobo\$110b2ob
2o2\$35b2o\$21b2o7bo3b2o\$20bo2bo5bobo4bo\$21bobo6b2o80bo\$22bo88bobo\$112b
2o9\$26b2o\$25bobo\$26bo2\$131b3o\$131bo\$132bo!``````
Lastly, for your last synthesis, Catagolue knows a way to synthesize the blinker and one of the beehives with three gliders. I've submitted the following to Catagolue, which will reduce the glider cost of the corresponding still life by one glider.

Code: Select all

``````x = 74, y = 19, rule = B3/S23
8bo\$8bobo\$8b2o\$2bo\$obo\$b2o\$64b2o\$53bo9bo2bo\$54bo9b2o\$52b3o2\$12bo59bo\$
11bobo57bobo\$11bobo57bobo\$6bo5bo53bo5bo\$6bo59bo\$6bo45bo13bo\$52b2o\$51b
obo!``````
Overall, I'd say that you're catching on quickly, and you also seem to have a knack for finding good cleanups manually (although you should be aware that there are programs for that). Keep up the good work.
I have historically worked on conduits, but recently, I've been working on glider syntheses and investigating SnakeLife.

May13
Posts: 63
Joined: March 11th, 2021, 8:33 am

### Re: Still Life Synthesis Thread

6 new syntheses:

Code: Select all

``````x = 594, y = 158, rule = B3/S23
34bo\$35b2o\$34b2o9\$324bo\$110b2ob2o208bo\$8bo51b2o47bobobobo207b3o\$9bo50b
2o47bo5bo\$7b3o100b5o158bo\$271bobo\$o107b3o2b2o157b2o\$b2o2b2o51bo48bo3bo
2bo255b2o\$2o4b2o49bobo47bobobobo213bo33bo7bo2bo4bo\$5bo51b2o49b2ob2o
213bobo33b2o5bobo4bobo\$327b2o32b2o7bo6b2o\$283bo31b2o\$282b2o30bobo46bo\$
228bo53bobo31bo46b2o\$229bo132bobo\$227b3o\$49bo8bo222bo49bo49bo\$47bobo7b
o222bobo47bobo32bo14bobo\$48b2o7b3o220bobo47bobo32b2o13bobo\$109bo171bo
49bo32bobo14bo\$108bobo\$108bobo113b3o\$109bo116bo\$225bo\$10bo49bo\$10bo49b
o\$10bo49bo52b3o\$113bo\$114bo3\$527bo\$527bobo\$527b2o50bo\$516bobo61bo\$517b
2o59b3o\$517bo2\$583bo\$34b3o484b2o59bobo2b2ob2o\$36bo480bo2b2o60b2o3b2obo
bo\$35bo481b2o3bo70bo\$516bobo68b6o\$586bo\$451bobo133b6o\$451b2o140bo\$452b
o134b2obobo\$448bo138b2ob2o\$446bobo66bo\$447b2o65bobo\$514bobo\$515bo\$455b
2o66b2o\$454b2o67b2o\$456bo12\$252bobo\$253b2o\$253bo240b2o\$493bobo\$495bo9\$
67bo\$65b2o\$66b2o\$376bo\$375bo\$375b3o2\$53bo\$54b2o\$53b2o\$64bo\$62b2o\$63b2o
3\$49b2o24bo32b2o138bo\$50b2o10b2o10bo31bo2bo136bobo\$49bo8bo2b2o11b3o28b
ob2o138b2o\$59bo3bo42bo2b3o\$57b3o19bo24bobo2bo2bo7bo\$77b2o25b2o5b2o6bo\$
78b2o39b3o2\$64bo\$64b2o\$63bobo47b2o\$113b2o11\$514bo\$513bo\$513b3o59bo\$
563b2ob2o6bo\$563b2obobo5b3o\$517b3o47bo\$289bo222b3o2bo\$290bo221bo5bo\$
288b3o222bo\$577b3o\$577bo\$558b2o18bo\$559b2o\$558bo10bo\$569bobo\$569b2o\$
565b3o\$311bo255bo\$311bobo252bo\$300bo10b2o256b2o\$301bo6bo247bo11bobo\$
294b2o3b3o5b2o247b2o12bo\$295b2o10bobo245bobo\$294bo3b3o\$298bo\$299bo3\$
288b2o\$287bobo\$289bo!
``````
It contains 3 good improvements of known syntheses (from Catagolue):
left bottom (inverted double claw tie bookend) - from 19G to 10G
center top - from 20G to 9G
right bottom (hat siamese fishhook siamese carrier) - from 20G to 10G

MathAndCode
Posts: 4493
Joined: August 31st, 2020, 5:58 pm

### Re: Still Life Synthesis Thread

May13 wrote:
March 23rd, 2021, 12:47 pm
6 new syntheses:
Nice work. Here are the cost reductions and fast components that I found:

Code: Select all

``````x = 354, y = 77, rule = B3/S23
2bo\$3bo\$b3o\$55bo\$54bo\$54b3o\$bo\$2bo\$3o9\$351bo\$351bobo\$351b2o5\$2bo\$3b2o
\$2b2o\$270bo\$270bobo\$270b2o\$188bo71bo\$186b2o70bobo\$187b2o70b2o2\$105b2o
236b2o\$105bo236bo2bo\$107bob2o232b2o\$28b2o76b2obobo62bo173b2o\$28b2o75b
o5bo63b2o171bobo\$106b5o63b2o158bo13bo\$185bo69bo77bobo\$104b3o2b2o72b2o
69bobo76bobo\$26bo76bo3bo2bo73b2o68bobo77bo\$25bobo75bobobobo145bo86b2o
\$25b2o77b2ob2o154b2o77b2o\$170b2o91b2o\$171b2o10b2o\$170bo8bo2b2o\$180bo3b
o\$178b3o\$194bo\$17bo8bo166bo\$15bobo7bo167b3o\$16b2o7b3o\$105bo\$104bobo\$104b
obo\$105bo2\$28bo165bo\$28bo164b2o4bo\$28bo80b3o81bobo2b2o\$109bo88bobo\$110b
o\$308b2o\$307bobo\$309bo8\$2b3o\$4bo\$3bo!``````
Also, one of your syntheses was invalid because one of the gliders used in synthesizing an R-pentomino would just barely hit a beehive if it tried to come from infinity, so I submitted a version that uses another three-glider synthesis of an R-sequence.

Code: Select all

``````x = 100, y = 50, rule = B3/S23
97bo\$97bobo\$97b2o8\$16bo\$16bobo\$16b2o\$6bo\$4bobo\$5b2o2\$89b2o\$88bo2bo\$89b
2o\$94b2o\$94bobo\$80bo13bo\$bo77bobo\$obo76bobo\$obo77bo\$bo86b2o\$9b2o77b2o
\$9b2o19\$54b2o\$53bobo\$55bo!``````
I have historically worked on conduits, but recently, I've been working on glider syntheses and investigating SnakeLife.

AbhpzTa
Posts: 515
Joined: April 13th, 2016, 9:40 am
Location: Ishikawa Prefecture, Japan

### Re: Still Life Synthesis Thread

May13 wrote:
March 23rd, 2021, 12:47 pm
6 new syntheses:
Reduced the topleft (damaged skew 30-great-sym) from 10G to 7G:

Code: Select all

``````x = 46, y = 58, rule = B3/S23
o37bo\$b2o34bo\$2o35b3o7\$44bo\$43bo\$43b3o3\$13b2o\$14b2o16b3o\$13bo18bo\$33bo
34\$3b2o\$2bobo\$4bo2\$6b2o\$5bobo\$7bo!``````
Iteration of sigma(n)+tau(n)-n [sigma(n)+tau(n)-n : OEIS A163163] (e.g. 16,20,28,34,24,44,46,30,50,49,11,3,3, ...) :
965808 is period 336 (max = 207085118608).

MathAndCode
Posts: 4493
Joined: August 31st, 2020, 5:58 pm

### Re: Still Life Synthesis Thread

AbhpzTa wrote:
March 24th, 2021, 2:17 pm
Reduced the topleft (damaged skew 30-great-sym) from 10G to 7G:

Code: Select all

``````x = 46, y = 58, rule = B3/S23
o37bo\$b2o34bo\$2o35b3o7\$44bo\$43bo\$43b3o3\$13b2o\$14b2o16b3o\$13bo18bo\$33bo
34\$3b2o\$2bobo\$4bo2\$6b2o\$5bobo\$7bo!``````
It also reduces the cost of the still life that uses the fast component.

Code: Select all

``````x = 65, y = 82, rule = B3/S23
2bo\$3bo\$b3o\$63bo\$62bo\$62b3o\$bo\$2bo\$3o16\$2bo37bo\$3b2o34bo\$2b2o35b3o7\$46b
o\$45bo\$45b3o3\$15b2o\$16b2o16b3o\$15bo18bo\$35bo34\$5b2o\$4bobo\$6bo2\$8b2o\$7b
obo\$9bo!``````

Edit: Here's another fast component that works on it:

Code: Select all

``````x = 200, y = 78, rule = B3/S23
2bobo\$3b2o\$3bo\$64bobo\$64b2o\$65bo4\$76bo\$75bo\$75b3o5\$70bobo\$70b2o\$71bo2\$
o37bo\$b2o34bo\$2o35b3o7\$44bo124b2o20b2o\$43bo124bobo20b2o\$43b3o122bo\$165b
2obo\$164bobob2o\$13b2o149bo5bo\$14b2o16b3o130b5o27b3o\$13bo18bo164bo\$33b
o129b3o2b2o28bo\$162bo3bo2bo\$162bobobobo\$163b2ob2o19\$73bo\$72b2o\$72bobo
10\$3b2o\$2bobo\$4bo2\$6b2o\$5bobo\$7bo!``````
I have historically worked on conduits, but recently, I've been working on glider syntheses and investigating SnakeLife.

cgoler2
Posts: 147
Joined: March 10th, 2021, 2:32 pm

### Re: Still Life Synthesis Thread

Beehive + 2 fishhooks + pi = 4 blocks:

Code: Select all

``````x = 23, y = 15, rule = B3/S23
11bo\$10bobo\$10bobo\$11bo7\$10b3o\$2b2o6bobo6b2o\$bobo6bobo6bobo\$bo19bo\$2o
19b2o!
``````

MathAndCode
Posts: 4493
Joined: August 31st, 2020, 5:58 pm

### Re: Still Life Synthesis Thread

cgoler2 wrote:
April 1st, 2021, 10:19 am
Beehive + 2 fishhooks + pi = 4 blocks:
That pseudo still life can already be constructed with four gliders.

Code: Select all

``````x = 11, y = 11, rule = B3/S23
2bo5bo\$obo5bobo\$b2o5b2o6\$b2o5b2o\$obo5bobo\$2bo5bo!``````
Also, if you're trying to do what I think that you're trying to do, I recommend that you look at the conduits tutorial.
I have historically worked on conduits, but recently, I've been working on glider syntheses and investigating SnakeLife.

wwei47
Posts: 643
Joined: February 18th, 2021, 11:18 am

### Re: Still Life Synthesis Thread

Snakes work:

Code: Select all

``````x = 23, y = 13, rule = B3/S23
11bo\$10bobo\$10bobo\$11bo7\$10b3o\$2obo6bobo6bob2o\$ob2o6bobo6b2obo!
``````

Code: Select all

``````x = 19, y = 17, rule = Symbiosis
11.A\$9.2A.A\$3.A\$2.3A3.A6.A\$.A2.A3.2A5.A\$A7.A.3A2.2A\$A.3A4.A.4A.3A\$.2A
2.B3.A4.A\$B.B8.2A\$13.A\$12.2A\$7.B3.2A4.2B\$8.2A.A5.A\$10.A3.A\$9.2AB.B\$8.
A2.2B4.B\$8.B9.A!
``````

iNoMed
Posts: 140
Joined: August 29th, 2020, 3:05 pm
Location: Scotland

### Re: Still Life Synthesis Thread

Crossposting this 5G synthesis of xs12_4ai3s4zx1 (Cis-fuse with two tails) from the Discord server:

Code: Select all

``````x = 44, y = 38, rule = B3/S23
43bo\$41b2o\$42b2o3\$25b2o\$26b2o5b2o\$25bo6b2o\$34bo5\$14b2o\$15b2o\$14bo20\$2o
\$b2o\$o!``````
To assemble the above synthesis, I used the second 4G_stdin collision (2G TL+G, interrupted by two additional gliders) in conjunction with a carefully-placed cleanup glider... Nothing out-of-the-ordinary there!

Code: Select all

``````x = 35, y = 5, rule = B3/S23
4b2o3b2o3bo3b2ob2o3b2ob2o\$2o2bobo3bo2bobobobobobobobobobo\$obobo2bo2bob
o2bobo2bo2bobo3bobo\$2bobo3bobobobo2bo5bobo3bobob2o\$b2ob2o3b2ob2o3b2o3b
2ob2o3b2ob2o!``````

MathAndCode
Posts: 4493
Joined: August 31st, 2020, 5:58 pm

### Re: Still Life Synthesis Thread

MathAndCode wrote:
February 7th, 2021, 6:30 pm
Twelfth edit: Actually, this will likely be easier:
I got a variant to work.

Code: Select all

``````x = 46, y = 48, rule = B3/S23
33bobo\$33b2o\$34bo\$5bo23bo\$6bo22bobo\$4b3o22b2o\$35bo\$33b2o\$9bo24b2o\$10b
2o\$9b2o4\$obo\$b2o38bo\$bo37b2o\$40b2o9\$27bo\$25bobo\$25b3o\$26bo7\$44b2o\$4b3o
36b2o\$6bo38bo\$5bo6\$32b2o\$31b2o\$33bo!``````

Edit: Here's a rather promising base that I'm planning to work on stabilizing:

Code: Select all

``````x = 24, y = 35, rule = B3/S23
10bo\$11bo\$9b3o5\$18bobo\$18b2o\$8bo10bo\$8b2o\$7bobo5\$21b2o\$21bobo\$21bo14\$b
o\$b2o\$obo!``````
I have historically worked on conduits, but recently, I've been working on glider syntheses and investigating SnakeLife.

wwei47
Posts: 643
Joined: February 18th, 2021, 11:18 am

### Re: Still Life Synthesis Thread

Hm. I was trying to make a conduit, but then I noticed how this block failed:
EDIT: This was the original, the beehive got added later.

Code: Select all

``````x = 33, y = 21, rule = B3/S23
11b2o\$11b2o2\$4b2o\$4b2o7\$2o17b3o\$2o17bobo\$19bobo\$26b2obo\$26b2ob3o\$32bo
\$26b2ob3o\$27bobo\$27bobo\$28bo!
``````

Code: Select all

``````x = 33, y = 21, rule = B3/S23
11b2o\$11b2o2\$4b2o\$4b2o7\$2o17b3o\$2o17bobo\$19bobo\$26b2obo\$26b2ob3o\$3b2o
27bo\$2bo2bo20b2ob3o\$3b2o22bobo\$27bobo\$28bo!
``````
So I did this.

Code: Select all

``````x = 71, y = 36, rule = B3/S23
39bobo\$39b2o\$40bo3\$39bobo\$39b2o\$40bo8\$11b2o\$11b2o2\$4b2o\$4b2o2\$66b4o\$66b
o3bo\$66bo\$67bo2bo2\$2o17b3o\$2o17bobo\$19bobo\$26b2obo\$26b2ob3o\$3b2o27bo\$
2bo2bo20b2ob3o\$3b2o22bobo\$27bobo\$28bo!
``````
Edit 2: From generation 83:

Code: Select all

``````x = 33, y = 21, rule = B3/S23
11b2o\$11b2o2\$4b2o14bo\$4b2o13bo\$19b3o2\$15bo\$14bo\$5bo8b3o\$4bob2o\$2ob2o2b
3o\$2o2b2ob3o\$5b2o3bo\$6b4o16b2obo\$8b2o5b3o8b2ob3o\$3o12bo16bo\$2bo13bo9b
2ob3o\$bo25bobo\$27bobo\$28bo!
``````
Edit 3: Help

Code: Select all

``````x = 41, y = 40, rule = B3/S23
26b2o\$25b3o\$25b2obo\$26b3o\$27bo6\$bo17bo16bobo\$2bo15bo17b2o\$3o15b3o16bo
3\$30bo2bo\$29bo\$29bo3bo\$29b4o\$36b4o\$36bo3bo\$36bo\$37bo2bo8\$33b3o\$28b3o2b
o\$28bo5bo\$29bo2\$18bo\$17b3o7b3o\$17bob2o6bo\$18b3o7bo\$18b2o!
[[ STOP 33 ]]``````

Code: Select all

``````x = 19, y = 17, rule = Symbiosis
11.A\$9.2A.A\$3.A\$2.3A3.A6.A\$.A2.A3.2A5.A\$A7.A.3A2.2A\$A.3A4.A.4A.3A\$.2A
2.B3.A4.A\$B.B8.2A\$13.A\$12.2A\$7.B3.2A4.2B\$8.2A.A5.A\$10.A3.A\$9.2AB.B\$8.
A2.2B4.B\$8.B9.A!
``````

MathAndCode
Posts: 4493
Joined: August 31st, 2020, 5:58 pm

### Re: Still Life Synthesis Thread

Is this slow component known?

Code: Select all

``````x = 36, y = 25, rule = B3/S23
32bo\$32bobo\$32b2o\$11bo\$9bobo\$10b2o\$33bo\$33bobo\$33b2o6\$bo\$2bo\$3o\$13bo\$
13bobo\$13b2o\$10bo\$11b2o8b2o\$10b2o9bo\$23bo\$22b2o!``````
I have historically worked on conduits, but recently, I've been working on glider syntheses and investigating SnakeLife.

bibunsekibun
Posts: 62
Joined: April 17th, 2021, 7:58 pm
Location: TRAPPIST-1e

### Re: Still Life Synthesis Thread

Is it possible to reduce the synthesis of xs23_cimg6p2sgzx343 based on this reaction?

Code: Select all

``````x = 23, y = 30, rule = B3/S23
7b2o\$6bobo\$6b2o8\$4bo\$3bobo\$3bo2bo14bo\$4b3o13bobo\$20bobo\$21bo3\$9b3o5\$
17bo\$17bo\$17bo2\$b2o\$o2bo\$b2o!
``````
I'm sleepy
I'm not good at English, so please let me know if you have any grammatical mistakes
My Favorite Pattern is 60P312

MathAndCode
Posts: 4493
Joined: August 31st, 2020, 5:58 pm

### Re: Still Life Synthesis Thread

bibunsekibun wrote:
May 4th, 2021, 7:38 pm
Is it possible to reduce the synthesis of xs23_cimg6p2sgzx343 based on this reaction?
Yes.

Code: Select all

``````x = 554, y = 45, rule = B3/S23
139bo\$137bobo\$138b2o\$81bo280b2o8b2o\$82bo5bo188b2o82bo2bo7b2o68b2o8b2o
\$80b3o3b2o56b2o67b2o61bobo82b2obo76bo2bo7b2o\$87b2o54bo2bo65bobo61b2o86b
3o74b2obo17bo77b2o\$143bo2bo65b2o147b2o4bo76b3o14bo77bo2bo\$144b2o214bo
2b4o74b2o4bo13b3o75b2obo\$361bo78bo2b4o95b3o\$274bo87b3o76bo97b2o4bo\$275b
2o87bo77b3o93bo2b4o\$274b2o168bo94bo\$8bobo529b3o\$9b2o531bo\$9bo265bo270b
2o\$6bo204bo62bobo269b2o\$5b2o78bo57bo66bobo62b2o107b2o\$bo3bobo76bobo55b
obo66b2o162b2o7b2o\$b2o82b2o56b2o220b2o8b2o\$obo362b2o78b2o104b3o\$445b2o
104bo\$279b3o270bo\$215b3o165b2o\$89b3o55b3o232b2o\$368b3o13bo71b2o\$448b3o
5b2o\$287bo\$287bo\$287bo2\$221bo8b2o\$221b2o6b2o\$220bobo8bo\$308b2o\$308bob
o\$308bo6\$478b3o\$478bo\$479bo!``````
Also, there's a fast component that can be used.

Code: Select all

``````x = 332, y = 73, rule = B3/S23
6bo\$o6b2o\$b2o3b2o\$2o28\$137b2o2bo8b2o\$55b2o80bo2bobo7b2o65b2o2bo8b2o\$54b
obo82b2obo74bo2bobo7b2o\$54b2o86b3o74b2obo17bo74b2o2bo\$139b2o4bo76b3o14b
o75bo2bobo\$138bo2b4o74b2o4bo13b3o75b2obo\$139bo78bo2b4o95b3o\$52bo87b3o
76bo97b2o4bo\$53b2o87bo77b3o93bo2b4o\$52b2o168bo94bo\$318b3o\$320bo\$53bo270b
2o\$52bobo269b2o\$53b2o107b2o\$153b2o7b2o\$143b2o8b2o\$143b2o78b2o104b3o\$223b
2o104bo\$57b3o270bo\$161b2o\$160b2o\$146b3o13bo71b2o\$226b3o5b2o\$65bo\$65bo
\$65bo5\$86b2o\$86bobo\$86bo4\$3b2o\$4b2o\$3bo252b3o\$256bo\$257bo!``````

Edit: I improved the converter-based method that was previously on Catagolue.

Code: Select all

``````x = 21, y = 19, rule = B3/S23
2b2o8bo\$bo2bo7bobo2bo\$b2obo7b2o2b2o\$4b2o10bobo\$b2o3bo\$o2b3o\$bobo\$2bo10b
o\$12b2o\$12bobo2\$3b3o\$5bo12b2o\$4bo3b3o7bobo\$8bo9bo\$9bo\$2b2o\$bobo\$3bo!``````
The soup-based method is still an improvement—albeit by one glider instead of three—but I've submitted the above to Catagolue just in case transfer.py turns out to find it useful for anything.
I have historically worked on conduits, but recently, I've been working on glider syntheses and investigating SnakeLife.

Extrementhusiast
Posts: 1890
Joined: June 16th, 2009, 11:24 pm
Location: USA

### Re: Still Life Synthesis Thread

MathAndCode wrote:
May 4th, 2021, 8:52 pm
Edit: I improved the converter-based method that was previously on Catagolue.

Code: Select all

``RLE``
Immediate further improvement:

Code: Select all

``````x = 19, y = 20, rule = B3/S23
12bobo\$2b2o8b2o\$bo2bo8bo\$b2obo6bo\$4b2o4b2o5bo\$b2o3bo3bobo3b2o\$o2b3o10b
obo\$bobo\$2bo3\$4b2o\$3bobo\$5bo2b2o\$8bobo\$8bo2\$2b3o\$4bo\$3bo!
``````
I Like My Heisenburps! (and others)