Thread for basic questions

[C28]

When should POTY 2023 nominations begin? I am a little worried that this year’s POTY will be just like last year’s.

January 2nd, 2024 seems like it would be best.

[qqd]

Why hasn't anyone tried a Sprayer heisenburp, despite its strong spark? Here is a not so good way of extracting a B from it:

Code: Select all

x = 81, y = 189, rule = B3/S23
22bo$21bobo$20bo2bo$21b2o9$11b2o7bo$11bo2bo5b2o$11bo3b4o2bo$13b3o4bo$
11b2o3b5o$9bo2bo5bo2bo$20b2o$5bo3bobo8bo$4bob4o2bo$3b2o2bo2bob2obo$2bo
6b2o3b2o$b8o5bo$o4bo2b5obo$ob2o10bo$2b2o6b5obo$7bo8bo$6bo2b2obo4bo$7bo
$18b2o2$15b3obo$14b2ob2o$15bob2o$12b2ob3o$12bo5bo$14bo$13b2o3b2obo$17b
3o2bo$21b2o$22b2o$21bobo$16bo2b3o$15b3o5b2o$14b2o4b3ob2o$15bob3obo3bo$
14bob2o6bo$14bo2bob3ob2o$14bo3b3o2bo$14bo3b2o2b2obo$15bob2o3b2obo$14b
3o3b3o$16bo3bobo$21b3o$18b2ob3o$18b3o$18bo$19b2o2bo$19bobo$17b3obobo$
17b2o2bo2bo$17b2o2bobo$19b2o$15b2o2b3o$14b3o3b2o$15b2o6bo$16bobo4bo$
23bo$18bo7b3o$18bo3b2o5bo$18bo3b2o5bo$22bobo4bo$21bo2bo3bo$21bo4bobo$
21bo3bo$22b4ob2ob3o$29bo2b2o$31bobo$32b3o$25b3o4b3o$25b2o5bobo$25bo5b
3o$24b2o5bo$23b2o2bo3b3o$24b5o2b2o$25bob2obobo$28bobobob2o$24bo2b2ob2o
2b2o$23bo4bo4bo$24bo4b3o$24bo2b4obo$28bo7bo$29bo6bo$31b5o$29bo4b3o$29b
2o$29b2o3bobo$34b2o$37b2o$38bobo$34bo5b2o$36b2o$36b2o$37bo3bo$36bo2b2o
$37b2o2b2o$35bo2bobo$35b3o2bo$39b2obo$37bob2obo$41bo$37b4o$36b2o$39bo
2bo$35bob3o2bo$35bobobobo$34bo2bobo$34bo2bo2b2o$35bo3bo4bo$37bo3bobob
2o$38bob2o3bo$39b3o3bobo$38bobo2bo2bo$37bo3b3o$37bo2b2o$37bo2bobo2b2o$
42b2ob2o$43bobo$41bob2obo$45bo$43b2o$40b2o2bo$38bo3bo3bo$37b2o8bo$36b
2obo6bo$38bo$38b2ob2o$39b2ob2o$39b2o$43bo2bo$42bob4o$45bo2bo$46bo$49b
2obo$49bo2b2o$49b2o3bo$49b2o2b2o$58bo$49bobo6bo$49bo4b3ob2o$56bo$54b3o
$56b2o$57b4o$58b3o2$59b4o$59bobobo3bo$63b2obobo$61bobobo2bo$60bo2bob3o
$62bo2bo$62bo2bo$62bo2bo$64bo$61bo$60b3o$60b2o2b2o$64b2o2$65b3o$64bo4b
2o$67bob2o4b3o$64b2obo3b2obo3bo$66b3ob3o3bo$68b7o$77bo$77b2o$78b2o$79b
2o$75b3ob2o$76bo2bo$75bob2o$74b2ob2o$74bobo$75bo2$77b2o!

It has such a low clearance that nothing useful connects to it, but perhaps another, more intricate arrangement of still lives can extract an accessible signal.

[HerscheltheHerschel]

does this have any octo3g results?

Code: Select all

x = 6, y = 5, rule = B3/S23
2b3o$2bo2bo$bo2$2o!

[confocaloid]

does this have any octo3g results?

Code: Select all

x = 6, y = 5, rule = B3/S23
2b3o$2bo2bo$bo2$2o!

Results for generation T = 1:

Code: Select all

x = 395, y = 17, rule = B3/S23
3bo135bo59bo59bobo62bo68bo$2b3o133bo61bo59b2o63bo3bo61b2o$b2obo133b3o
57b3o59bo62b3o2b2o62b2o$264bo63bobo57bo$2o193b2o68bo123bo$196b2ob2o62b
3o58b3o60b3o3b2o$195bo2b2o126bo65b2o$200bo124bo68bo$263b2o$132bo129bob
o$133bo130bo$131b3o3$132b2o$133b2o$132bo!

Results for generation T = 22:

Code: Select all

x = 524, y = 17, rule = B3/S23
4b2o134bo65bo62bobo56bo59bobo62bo68bo$4bobo132bo67bo55bo5b2o58bo59b2o
63bo3bo61b2o$5b2o132b3o63b3o56bo5bo56b3o59bo62b3o2b2o62b2o$262b3o128bo
63bobo57bo$324b2o68bo123bo$2o201b3o119b2ob2o62b3o58b3o60b3o3b2o$o2bo
193bo5bo56b3o61bo2b2o126bo65b2o$bobo193b2o5bo55bo68bo124bo68bo$bo194bo
bo62bo130b2o$2bobo128bo257bobo$2b3o129bo258bo$132b3o3$133b2o$134b2o$
133bo!

[qqd]

Why hasn't anyone tried a Sprayer heisenburp, despite its strong spark? Here is a not so good way of extracting a B from it:

Code: Select all

x = 81, y = 189, rule = B3/S23
22bo$21bobo$20bo2bo$21b2o9$11b2o7bo$11bo2bo5b2o$11bo3b4o2bo$13b3o4bo$
11b2o3b5o$9bo2bo5bo2bo$20b2o$5bo3bobo8bo$4bob4o2bo$3b2o2bo2bob2obo$2bo
6b2o3b2o$b8o5bo$o4bo2b5obo$ob2o10bo$2b2o6b5obo$7bo8bo$6bo2b2obo4bo$7bo
$18b2o2$15b3obo$14b2ob2o$15bob2o$12b2ob3o$12bo5bo$14bo$13b2o3b2obo$17b
3o2bo$21b2o$22b2o$21bobo$16bo2b3o$15b3o5b2o$14b2o4b3ob2o$15bob3obo3bo$
14bob2o6bo$14bo2bob3ob2o$14bo3b3o2bo$14bo3b2o2b2obo$15bob2o3b2obo$14b
3o3b3o$16bo3bobo$21b3o$18b2ob3o$18b3o$18bo$19b2o2bo$19bobo$17b3obobo$
17b2o2bo2bo$17b2o2bobo$19b2o$15b2o2b3o$14b3o3b2o$15b2o6bo$16bobo4bo$
23bo$18bo7b3o$18bo3b2o5bo$18bo3b2o5bo$22bobo4bo$21bo2bo3bo$21bo4bobo$
21bo3bo$22b4ob2ob3o$29bo2b2o$31bobo$32b3o$25b3o4b3o$25b2o5bobo$25bo5b
3o$24b2o5bo$23b2o2bo3b3o$24b5o2b2o$25bob2obobo$28bobobob2o$24bo2b2ob2o
2b2o$23bo4bo4bo$24bo4b3o$24bo2b4obo$28bo7bo$29bo6bo$31b5o$29bo4b3o$29b
2o$29b2o3bobo$34b2o$37b2o$38bobo$34bo5b2o$36b2o$36b2o$37bo3bo$36bo2b2o
$37b2o2b2o$35bo2bobo$35b3o2bo$39b2obo$37bob2obo$41bo$37b4o$36b2o$39bo
2bo$35bob3o2bo$35bobobobo$34bo2bobo$34bo2bo2b2o$35bo3bo4bo$37bo3bobob
2o$38bob2o3bo$39b3o3bobo$38bobo2bo2bo$37bo3b3o$37bo2b2o$37bo2bobo2b2o$
42b2ob2o$43bobo$41bob2obo$45bo$43b2o$40b2o2bo$38bo3bo3bo$37b2o8bo$36b
2obo6bo$38bo$38b2ob2o$39b2ob2o$39b2o$43bo2bo$42bob4o$45bo2bo$46bo$49b
2obo$49bo2b2o$49b2o3bo$49b2o2b2o$58bo$49bobo6bo$49bo4b3ob2o$56bo$54b3o
$56b2o$57b4o$58b3o2$59b4o$59bobobo3bo$63b2obobo$61bobobo2bo$60bo2bob3o
$62bo2bo$62bo2bo$62bo2bo$64bo$61bo$60b3o$60b2o2b2o$64b2o2$65b3o$64bo4b
2o$67bob2o4b3o$64b2obo3b2obo3bo$66b3ob3o3bo$68b7o$77bo$77b2o$78b2o$79b
2o$75b3ob2o$76bo2bo$75bob2o$74b2ob2o$74bobo$75bo2$77b2o!

It has such a low clearance that nothing useful connects to it, but perhaps another, more intricate arrangement of still lives can extract an accessible signal.

Better version:

Code: Select all

x = 80, y = 188, rule = B3/S23
25bo$21b2obobo$21b2obo2bo$25b2o7$12bo$11b4o4b3o$10bo2b2o2bo3bo$13bo2b
2o$16b2ob2o$10b3o7bo$9b3o7b2o$9b3o6bobo$4b3o$4b2ob2o2b2o$2bo3bo3b3ob3o
$2b4ob2o4b2o$bo7b4o$3obo9bo$2bo6b8o$6b2o3bo4bo$8b3o2bo$7bobo3bo2bobo$
7bobo9bo$19bo$15b2o$15bob3o$13bo$13bob2o$12bo2bob2o$12bob5o$14bo2b2ob
2o$22bo$18bo3bo$18bo3b2o$23bo$20b2o$15b3ob2o3bo$15bo2b2o2bob3o$15bob2o
3b2o$16bo5b2o$14b2o4b2obo$14b3ob2o3bo$16b3o4b2obo$15bo7bobo$15bo3bobo
$15bo4bobo$17bo4bo$23bo$18b3obo$19bob3o$20bob2o$19bo$18bo3b2o$17b2o2b
3o$22b2o$16bo2bo$15bo3b2o$15bo4bobo$15bo3bo3bo$16bo7bo$17bobo2bo$22bo
2bob2o$17bo9b2o$17bobo2b2o3b2o$22b2o4bo$24bo2bobo$21b4o$21b6o2bo$28bo
2b2o$28bobobo$33bo$26bo5b2o$26bo6bo$26bo7bo$25bo4bob2o$24bo6bo$24bo2b
o4bobo$24b4o3bo2bo$29bo2bo$27bo2bobobo$24bo2bo3bo2b2o$24b4o3bobo2bo$24b
4o5b2o$28b3obob2o$25bo4b3ob2o$25bo3bob2ob2o$29bobo2b2o2$29b2o2bo2b2o$
29b2o2bo$35bo$35b3obo$33bob3o$34bobo3b2o$37bo2bo$37b4o$37bobob2o$38bo
$36b3o2b2o$41b2o$35b3o3bo$36bobobobo$36bo3b2o$41bo$37bo2bo$37b2ob2o$37b
ob3o$36b2o3bo$35b2o3b2o$35bo3b2o$35b3o2bo2bo$35b2o3bo3bo$38bo6bo$38bo
bob2obob2o$39b2o4bo$45b2o$38b2o2b4o$37b5o3b2o$43bob2o$38bo4bo$39bo3bo
2bo$41bob2obo$40b3o2bo$40b2ob2o$41bo5bo$42b2o3bo$37b3o5bo$37bo8b2o$37b
obo2$39b5o$40bobo$43bo$41b2o2b3o$45bo2bo$46b3o$48b2ob2o$49bo3bo$49bo4b
o$50bo2b2o$50bo$49b3o5b3o$49bo4b2o$54b2o4bo$55bo4bo$56bo$57b2o$59b3o2$
59b2obo$59bobobo$61bobo2b3o$59bo3bo3b2o$60b2obob2o$63bobo$65bo$62b3o$
62b3o$61b2o$61bo$60bo3b2o$61bo2bo2$66b2o$64b2ob3o$64b2obob2o5b2o$65bo
bo3bo3b2obo$67b3ob2ob3obo$73b2o$70bo5b2o$70bo7bo$79bo$74b2o3bo$77b3o$
76bo2bo$75bob2o$75bobo$74bobo$74bo$78bo$74bo$77b2o!

[HerscheltheHerschel]

Two small currently unsynthed quasi still lives:

Code: Select all

x = 12, y = 21, rule = B3/S23
2o$2o2$3bobo$3b2obo$6bo3bo$6b2obobo$10bo5$bo$obo$bo2$3bob2o$3b2obo2$8b
2o$8b2o!

[dvgrn]

Two small currently unsynthed quasi still lives:

Code: Select all

x = 12, y = 21, rule = B3/S23
2o$2o2$3bobo$3b2obo$6bo3bo$6b2obobo$10bo5$bo$obo$bo2$3bob2o$3b2obo2$8b
2o$8b2o!

A little more information would be good. Why did you post these particular two quasi still lifes? Please don't post any more of them in the Still Life Synthesis thread; the above post was reported, with a suggestion to move to the Sandbox. But maybe it's useful to move this example here to Basic Questions, since the post asks an implied question that is easy to answer:

What is a good way to find syntheses for these kinds of quasi still lifes?
(presumably by locating suitably edgy components that add blocks and tubs to other objects)

One good way of finding these is to ask Mark Niemiec's database. Another possible method is to ask slsparse if it has recipes that can place those objects.

Definitely try the database search first. In this case you go look at the block and tub pages at all the collected syntheses that have been found to be useful, and pick out the cheapest edgiest ones.

In this case, there's a 2G block recipe and a 3G tub recipe that are plenty edgy enough, so these constructions don't even cost anything extra.

Code: Select all

x = 66, y = 25, rule = LifeHistory
54.CBC$53.B2CB$52.3BC$53.2B$4.C45.C4B$3.C2B43.2B2C$2.B3C42.2B2CBD$.4B
42.2CB.BDBD$.4B41.C.CB2.BD$3.2B42.BC$2.4B49.A.2A$2.2B2DB48.2A.A4.CBC$
.C2B2D56.B2CB$B2CB56.2D2BC$CBC4.A.A49.B2D2B$7.2A.A8.CB39.4B$10.A3.DB
2.BC.C39.2B$10.2A.DBDB.B2C40.4B$14.DB2C2B41.4B$15.2C2B41.3CB$13.4BC
42.2BC$13.2B46.C$12.C3B$11.B2CB$11.CBC!

[TYCF]

Is there a collection of still life factories?

[dvgrn]

Is there a collection of still life factories?

There probably should be one big labeled stamp collection. The collection thread just has stuff scattered through the thread.

Most of the common objects (beehive, boat, block, etc.) have most of their known factories gathered together into one post apiece, though.

[confocaloid]

It can be made into an R-to-beehive factory that can stop a glider (in the same way as G-to-pi catalyst (August 2023)) was made into a glider-to-hive).
Can this be connected to a known X-to-R?

Code: Select all

x = 45, y = 33, rule = LifeHistory
43.A$42.A2B$41.B3A$40.4B$39.4B$38.4B$37.4B$36.4B$35.4B$34.4B$33.4B$
18.A13.4B$17.A.A11.4B$17.A.A10.4B$.2A7.2A4.2A.3A7.4B$B2AB5.B2AB4.B4.A
5.4B$.4B.B2.B.2B3.2AB3A5.4B$2.10B4.2A.A6.4B$.12B.4B7.4B$13B3D8.4B$B2C
11B2DB6.A3B$2B2C9B3DB5.A3B$2BC11B2DB4.B3A$17B3.4B$10BDBD2B4.4B$.9BDBD
2B3.4B$3.5B.B3D3B.4B$2.B2A2B3.10B$3.2A3.6B.4B$8.2A.B2.4B$9.A3.4B$6.3A
3.4B$6.A4.4B!

Is this R to Pi an elementary conduit? There are multiple intervening active regions, but the conduit's output depends on part of the initial r's debris and the r generated by the B.

Code: Select all

x = 23, y = 18, rule = LifeSuper
18.A$17.A.A$17.A.A$.2A7.2A4.2A.3A$B2AB5.B2AB4.B4.A$.4B.B2.B.2B3.2AB3A
$2.10B4.2A.A$.12B.4B$13B3D$B2C11BHDB$2B2C9BH2DB$2BC11B2HB$17B$10BDBD
2B$.9BDBD$3.5B2.3D$2.B2A2B$3.2A!

Edit*
Just to be clear, an elementary r to pi conduit is contained within the conduit (and an r conduit), but the final conduit is dependent on both conduits.

Is this R to Pi an elementary conduit?

I'd call that elementary, yes.

I wouldn't necessarily call it a useful elementary conduit, though -- there are less than ten ticks available for some hypothetical next conduit to grab hold of that pi and keep it from destroying the block. Are any known pi-to-X conduits useful here?

[dvgrn]

Can this be connected to a known X-to-R?

Blocks on both sides of the input R like that are still pretty much a death sentence for an R-to-X conduit. HLx111R is one of the stars of the show as far as edgy R outputs are concerned -- and unfortunately it's still one cell away from getting an R past that top block. Try fitting these two halves together:

Code: Select all

x = 69, y = 54, rule = LifeHistory
D3.D.D13.D5.D5.D3.4D$D3.D.D12.2D4.2D4.2D3.D3.D$D3.D.D5.D3.D3.D5.D5.D3.
D3.D$5D.D6.D.D4.D5.D5.D3.4D$D3.D.D7.D5.D5.D5.D3.D2.D$D3.D.D6.D.D4.D5.
D5.D3.D3.D$D3.D.5D.D3.D2.3D3.3D3.3D2.D3.D10$4.2A$5.A$5.A.AB$6.2AB$8.3B
$8.4B$9.4B.B$10.7B$11.6B$11.2B3C2B$11.2BC4B$11.B3C4B.2B$11.12B$11.14B
$11.15B$12.14B$15.11B37.A$14.13B2.2B31.A.A$13.19B30.A.A$11.B.21B12.2A
7.2A4.2A.3A$7.2A.2A22B11.B2AB5.B2AB4.B4.A$8.A.A.B.21B11.4B.B2.B.2B3.2A
B3A$6.A.A.A.A23B11.10B4.2A.A$6.2A3.2A.B.19B11.12B.4B$15.22B8.16B$15.21B
2D7.B2.14B$14.23B2D6.2B2.13B$12.A24BD7.2B.14B$10.3A2.7B.14B8.17B3.4B$
9.A5.7B3.7B.2B10.10BDBD2B4.4B$9.2A4.7B4.5B15.9BDBD2B3.4B$15.5B6.4B18.
5B.B3D3B.4B$13.2AB.2B7.4B17.B2A2B3.10B$12.A.AB10.B2AB18.2A3.6B.4B$12.
A14.2A24.2A.B2.4B$11.2A41.A3.4B$51.3A3.4B$51.A4.4B!

Now, as usual, I'm working from a maybe-not-completely-updated elementary conduits collection. Have I forgotten some new discovery that produces an R that's even more edgy than HLx111R?

[confocaloid]

Is there a collection of still life factories?

There probably should be one big labeled stamp collection. [...]

[...] Now, as usual, I'm working from a maybe-not-completely-updated elementary conduits collection. Have I forgotten some new discovery that produces an R that's even more edgy than HLx111R?

This is a disadvantage of those big labelled stamp collections which are supposed to reflect state-of-the-art (as opposed to e.g. results of a complete enumeration like two-glider collisions). They quickly become outdated, and they are slow to update.

In this case, I myself tried several candidates (including HLx111R and Herschel transceiver) without success.

There are one-glider seeds that can put the R in that place, so one could engineer an artificial conduit contraption, but I think that kind of nonsense is unlikely to be useful here:

Code: Select all

x = 58, y = 38, rule = LifeHistory
56.A$55.A2B$54.B3A$53.4B$52.4B$51.4B$50.4B$49.4B$48.4B$47.4B$46.4B$
45.4B$44.4B$43.4B$42.4B$41.4B$26.A13.4B$25.A.A11.4B$25.A.A10.4B$9.2A
7.2A4.2A.3A7.4B$8.B2AB5.B2AB4.B4.A5.A3B$3.2A4.4B.B2.B.2B3.2AB3A5.A3B$
2.BA6.10B4.2A.A6.B3A$.A.AB4.12B.4B7.4B$B2A3B2.13B3D8.4B$5B3.B2D11B2DB
6.4B$.6B.2B2D9B3DB5.4B$2.6B2AD11B2DB4.4B$.6BABA15B3.4B$3AB.2B2A9BDBD
2B4.4B$2BA4.11BDBD2B3.4B$.A9.5B.B3D3B.4B$10.B2A2B3.10B$11.2A3.6B.4B$
16.2A.B2.4B$17.A3.4B$14.3A3.4B$14.A4.4B!

[qqd]

Why hasn't anyone tried a Sprayer heisenburp, despite its strong spark? Here is a not so good way of extracting a B from it:

Code: Select all

RLE

It has such a low clearance that nothing useful connects to it, but perhaps another, more intricate arrangement of still lives can extract an accessible signal.

Better version:

Code: Select all

RLE

Even better:

Code: Select all

x = 80, y = 228, rule = B3/S23
25b2o$25b2o2$3b2o$2bo2bo$3b2o15$12b2o$12bo$13b3o$15bo27$12bo$11b4o4b3o
$10bo2b2o2bo3bo$13bo2b2o$16b2ob2o$10b3o7bo$9b3o7b2o$9b3o6bobo$4b3o$4b
2ob2o2b2o$2bo3bo3b3ob3o$2b4ob2o4b2o$bo7b4o$3obo9bo$2bo6b8o$6b2o3bo4bo$
8b3o2bo$7bobo3bo2bobo$7bobo9bo$19bo$15b2o$15bob3o$13bo$13bob2o$12bo2bo
b2o$12bob5o$14bo2b2ob2o$22bo$18bo3bo$18bo3b2o$23bo$20b2o$15b3ob2o3bo$
15bo2b2o2bob3o$15bob2o3b2o$16bo5b2o$14b2o4b2obo$14b3ob2o3bo$16b3o4b2ob
o$15bo7bobo$15bo3bobo$15bo4bobo$17bo4bo$23bo$18b3obo$19bob3o$20bob2o$
19bo$18bo3b2o$17b2o2b3o$22b2o$16bo2bo$15bo3b2o$15bo4bobo$15bo3bo3bo$
16bo7bo$17bobo2bo$22bo2bob2o$17bo9b2o$17bobo2b2o3b2o$22b2o4bo$24bo2bob
o$21b4o$21b6o2bo$28bo2b2o$28bobobo$33bo$26bo5b2o$26bo6bo$26bo7bo$25bo
4bob2o$24bo6bo$24bo2bo4bobo$24b4o3bo2bo$29bo2bo$27bo2bobobo$24bo2bo3bo
2b2o$24b4o3bobo2bo$24b4o5b2o$28b3obob2o$25bo4b3ob2o$25bo3bob2ob2o$29bo
bo2b2o2$29b2o2bo2b2o$29b2o2bo$35bo$35b3obo$33bob3o$34bobo3b2o$37bo2bo$
37b4o$37bobob2o$38bo$36b3o2b2o$41b2o$35b3o3bo$36bobobobo$36bo3b2o$41bo
$37bo2bo$37b2ob2o$37bob3o$36b2o3bo$35b2o3b2o$35bo3b2o$35b3o2bo2bo$35b
2o3bo3bo$38bo6bo$38bobob2obob2o$39b2o4bo$45b2o$38b2o2b4o$37b5o3b2o$43b
ob2o$38bo4bo$39bo3bo2bo$41bob2obo$40b3o2bo$40b2ob2o$41bo5bo$42b2o3bo$
37b3o5bo$37bo8b2o$37bobo2$39b5o$40bobo$43bo$41b2o2b3o$45bo2bo$46b3o$
48b2ob2o$49bo3bo$49bo4bo$50bo2b2o$50bo$49b3o5b3o$49bo4b2o$54b2o4bo$55b
o4bo$56bo$57b2o$59b3o2$59b2obo$59bobobo$61bobo2b3o$59bo3bo3b2o$60b2obo
b2o$63bobo$65bo$62b3o$62b3o$61b2o$61bo$60bo3b2o$61bo2bo2$66b2o$64b2ob
3o$64b2obob2o5b2o$65bobo3bo3b2obo$67b3ob2ob3obo$73b2o$70bo5b2o$70bo7bo
$79bo$74b2o3bo$77b3o$76bo2bo$75bob2o$75bobo$74bobo$74bo$78bo$74bo$77b
2o!

[confocaloid]

Single-channel recipes are not slow, and explored slow salvos use more than one lane.
How much exploration has been done on single-lane slow salvos?
In particular, how large a "reasonable" construction elbow could be in bounding box? Is it possible to definitely rule out a single-blinker construction elbow? An elbow that is 50x50 or smaller?

Code: Select all

x = 349, y = 254, rule = B3/S23
bo99bo$2bo99bo$3o97b3o38$41bo99bo$42bo99bo$40b3o97b3o39$80bobo97bobo$
81b2o98b2o$81bo99bo37$121bo$122bo97bobo$120b3o98b2o$221bo37$161bo99bo$
162bo99bo$160b3o97b3o38$201bo99bo$202bo99bo$200b3o97b3o38$241bo99bo$
242bo99bo$240b3o97b3o9$248bo99bo$248bo99bo$248bo99bo!
#C [[ THEME LifeHistory ]]

[dvgrn]

Single-channel recipes are not slow, and explored slow salvos use more than one lane.
How much exploration has been done on single-lane slow salvos?
In particular, how large a "reasonable" construction elbow could be in bounding box? Is it possible to definitely rule out a single-blinker construction elbow? An elbow that is 50x50 or smaller?

That's a very good question. I kind of suspect that a single-blinker construction elbow could be definitively ruled out pretty quickly, with an exhaustive search.

For a larger and more complicated elbow, there are a lot of options to check. I'm not sure that it's possible to definitively rule out a two-blinker construction elbow, or a blinker-and-block construction elbow, even inside a smaller bounding box like 10x10.

For some placements of two common objects, the search tree might well expand far enough that no exhaustive search is possible -- and yet getting a specific placement of two objects back again is highly unlikely, so actually finding relatively prime INCm and DECn recipes and a FIRE recipe ... is probably going to take a very long time and cost a lot of gliders, if such recipes even exist at all.

[Haycat2009]

Now, as usual, I'm working from a maybe-not-completely-updated elementary conduits collection. Have I forgotten some new discovery that produces an R that's even more edgy than HLx111R?

Does the H-R in R152 count? It is one of very few conduits that can feed into a RF48H. (Even HRx111R cannot pull that off.)

Also what is the difference between afind, bfind, cfind, dfind, efind, ffind, gfind, hfind, ifind, jfind, kfind, lfind, mfind, nfind, ofind, pfind, qfind, rfind, sfind, tfind, ufind, vfind, wfind, xfind, yfind and zfind? I cannot find guides on which one to use, and why are there so many one-letter finds?

And as a sanity check, are p30, p86 and p177 the only periods with strictly volatile guns?

[confocaloid]

Now, as usual, I'm working from a maybe-not-completely-updated elementary conduits collection. Have I forgotten some new discovery that produces an R that's even more edgy than HLx111R?

Does the H-R in R152 count? It is one of very few conduits that can feed into a RF48H. (Even HRx111R cannot pull that off.)

Try actually connecting the two components together:

Code: Select all

x = 59, y = 40, rule = LifeHistory
53.A$52.A.A$52.A.A$36.2A7.2A4.2A.3A$35.B2AB5.B2AB4.B4.A$36.4B.B2.B.2B
3.2AB3A$37.10B4.2A.A$36.12B.4B$35.16B$11.2D22.B2D14B$11.B2D7.D.D.D.D.
D5.2B2D13B$10.2BDB21.2BD14B$B9.6B19.17B3.4B$2B9.6B18.10BDBD2B4.4B$3B
7.7B19.9BDBD2B3.4B$4B6.8B20.5B.B3D3B.4B$.4B3.11B18.B2A2B3.10B$2.4B2.
11B19.2A3.6B.4B$2.18B23.2A.B2.4B$2.11B2A4B25.A3.4B$.11BA2BAB24.3A3.4B
$2.11BABAB24.A4.4B$4.10BA4B$4.10B3.2A$4.10B3.A$2.2AB.8B4.3A$.A.AB.7B
7.A$.A4.8B$2A3.8B$5.7B$4.11B$5.11B$5.11B$5.11B$3.2AB2.4B3CB$2.A.AB3.
4BC2B$2.A6.2B3C2B$.2A7.6B$10.7B$12.B.4B!

[NooneAtAll3]

Do 2-glider collisions produce all possible 3x3 patterns? (I mean in the active region and I mean all 2^(3x3) combinations)

[dvgrn]

Do 2-glider collisions produce all possible 3x3 patterns? (I mean in the active region and I mean all 2^(3x3) combinations)

I haven't absolutely confirmed it, but I strongly suspect that they do.

The only configuration that seemed likely to be missing was the 3x3 all-ON square, since that's relatively rare. But it shows up at T=40 in the two-glider mess pattern from Golly's two-glider-collisions.rle:

Code: Select all

x = 11, y = 12, rule = LifeHistory
9.A$8.A$8.3A$3D$3D$3D4$6.A$5.2A$5.A.A!
#C [[ PAUSE 2 AUTOSTART STOP 40 ]]

Actually it's around T=35 in the pi-heptomino collisions, too, come to think of it -- not really rare at all:

Code: Select all

x = 17, y = 6, rule = LifeHistory
11.A$10.A$3D7.3A$3D11.3A$3D11.A$15.A!

I haven't dug up the center-cell-on-plus-four-diagonal-neighbors configuration yet -- the '4c' neighborhood. Hang on a minute, there's a script that can be run to figure this out...

[dvgrn]

I haven't dug up the center-cell-on-plus-four-diagonal-neighbors configuration yet -- the '4c' neighborhood. Hang on a minute, there's a script that can be run to figure this out...

Just ran isorule.py on this pattern --

Code: Select all

x = 334, y = 367, rule = B3/S23
110bo36bo18bo$14bo18bo19bo16bo19bo17b2o19bo15b2o17b2o36bo$12b2o17b2o
18b2o15b2o18b2o19b2o16b2o17b2o17b2o16bo16b2o$13b2o17b2o18b2o15b2o18b2o
37b2o51b2o18b2o$182b2o3$14b2o18b2o108b3o$13b2o18b2o73bo15b3o17bo17bo
37b3o$15bo19bo17b3o15b3o18b3o12b2o15bo20bo15b2o19b3o15bo$53bo17bo20bo
14bobo15bo35bobo18bo18bo$54bo17bo20bo89bo8$271bo$225bo22bo20b2o62bo$
186bo15bo20b2o21b2o22b2o19bo22bo16b2o$184b2o14b2o22b2o21b2o40b2o21b2o
18b2o$42bo16bo17bo16bo16bo15bo17bo16bo22b2o14b2o87b2o21b2o$22bo17b2o
15b2o16b2o15b2o15b2o14b2o16b2o15b2o$20b2o19b2o15b2o16b2o15b2o15b2o14b
2o16b2o15b2o$21b2o2$181b2o16b2o60bo$33b2o17b2o17b2o16b2o16b2o15b2o17b
2o16b2o19b2o16b2o11b2o23b2o21b2o20b2o40b2o$11b2o21b2o17b2o17b2o16b2o
16b2o15b2o17b2o16b2o17bo17bo12bobo22bobo20bobo19bobo13b2o24bobo$12b2o
19bo18bo18bo17bo17bo16bo18bo17bo52bo24bo44bo12bobo26bo$11bo287bo25$62b
o157bo$30bo29b2o156b2o38bo$28b2o15bo15b2o156b2o15bo19b2o$29b2o12b2o
189b2o21b2o$44b2o189b2o3$261b2o$64bo195b2o$63b2o149b2o21b3o22bo$23bo
21bo17bobo147bobo21bo$23b2o19b2o169bo22bo$22bobo19bobo19$40bo15bo39bo
153bo24bo19bo$18bo19b2o14b2o38b2o120bo16bo14b2o23b2o18b2o$16b2o21b2o
14b2o16bo21b2o18bo98b2o15b2o16b2o23b2o18b2o$17b2o52b2o40b2o100b2o15b2o
$72b2o40b2o3$75b2o$11b2o61b2o17bo157bo37b2o$12b2o21b2o15b2o22bo15b2o
15b3o101b3o16bo17b2o14b2o20bobo$11bo22bobo14bobo38bobo14bo103bo17b2o
17bobo12bobo22bo$36bo16bo56bo103bo16bobo33bo7$29b2o19b2o$29b2o19b2o9$
20bo$18b2o20bo$19b2o17b2o$39b2o6$15bo18b3o$15b2o17bo$14bobo18bo21$17bo
$15b2o$16b2o7$10b2o$9bobo314bo$11bo312b2o$325b2o6$324b3o$324bo$325bo
11$13bo207bo$11b2o206b2o$12b2o206b2o4$15b2o$14b2o$16bo200b3o$217bo$
218bo18$23bo$21b2o$22b2o$253bo$251b2o$252b2o4$15bo$15b2o236b3o$14bobo
236bo$254bo17$15bo$13b2o$14b2o265bo$279b2o$280b2o3$11b3o266b2o$11bo
267b2o$12bo268bo12$261b2o$261b2o8$154bo$152b2o$11bo16bo124b2o111bo$9b
2o15b2o236b2o$10b2o15b2o236b2o3$266b2o$265b2o$150bo116bo$7b2o18b3o120b
2o$6bobo18bo121bobo$8bo19bo23$34bo239bo$32b2o238b2o$33b2o238b2o4$33b2o
$32b2o$34bo$265bo$265b2o$264bobo8$232b2o37b2o$232b2o37b2o7$68bo13bo$
66b2o12b2o$67b2o12b2o6$63bo22bo$62b2o21b2o$62bobo20bobo195bo$281b2o$
282b2o6$278b3o$278bo$279bo8$25bo$23b2o$2bo21b2o35bo$2o57b2o$b2o57b2o3$
3b2o$2b2o24bo19b2o$4bo22b2o20b2o176b2o32b2o$27bobo18bo178b2o32b2o!

-- and got minrule and maxrule of "B3/S23". So unless I'm wrong somehow (which I fairly regularly am) ... that should mean that S4c shows up somewhere or other, along with every other possible 3x3 configuration.

[confocaloid]

Do 2-glider collisions produce all possible 3x3 patterns? (I mean in the active region and I mean all 2^(3x3) combinations)

I believe the two-glider mess collision is isotropically endemic to B3/S23. Absence of the condition S4c is tested when going from T = 134 to the next generation. Absence of S6i is tested in the tick from T = 144 to T = 145. All other Hensel conditions are tested earlier.

Code: Select all

x = 6, y = 6, rule = B3/S23
2bo$obo$b2o$5bo$3b2o$4b2o!

The number of occurrences of each condition (including from one to eight 3x3 "windows", depending on symmetry) in the first 530 generations (excluding B0/A0 which appears infinitely many times):

B1c (47602), B2a (42344), B1e (17228), B2e (9071), S3a (7992), B3i (6918), S2k (6330), S1e (5801), B3a (4265), S2a (3819), B3j (3815), S1c (3170), B2c (2968), S3n (2868), S2c (2745), S2e (2630), B2k (2505), B3n (2093), S2i (2092), S3j (2069), S3r (1847), B4a (1611), S4a (1608), S3q (1501), B3q (1474), B4r (1282), B2n (1196), B4j (1148), B3r (1127), S4r (1107), B5y (1079), S3i (1062), S2n (1007), B5n (936), S4k (915), S5i (874), B4w (872), B4n (770), S0 (653), B5q (640), S4w (630), B3e (622), S5q (616), S4q (596), S4n (593), B5k (569), S4j (528), B4i (507), S3e (489), B2i (487), B5r (464), B6k (455), B4k (443), B4y (418), S4i (385), B5j (374), B3c (365), S5a (348), S5j (347), B5a (333), B6n (318), S6a (314), S3k (309), B4t (305), B4z (303), B6a (297), S5n (297), S4z (287), B5i (267), B3y (240), B3k (221), S4y (218), S4t (218), S5y (214), S3y (210), S6c (205), B4q (201), B5e (195), S5c (194), B5c (177), S5r (175), S6k (172), S3c (151), S7c (140), B7e (123), B6i (117), B6e (101), B7c (99), S6n (99), B6c (86), S5k (85), S4e (75), S7e (71), B4e (66), B4c (57), S5e (54), S6e (45), S8 (27), B8 (17), S6i (11), S4c (6)

[TYCF]

Is there a collection of eater 1 factories?

[confocaloid]

Is there a collection of eater 1 factories?

If only there were enough of them to collect.

There was a "transparent eater 1" example (not a factory) crossposted on LifeWiki talk:Did you know/162:

Code: Select all

#C incomplete octomino-to-H conduit including a transparent eater 1
#C https://conwaylife.com/w/index.php?oldid=135666
x = 18, y = 33, rule = B3/S23
b2o$b2o2$bo$obo$o2bo2b2o$4bob2o$2b2o8$7b2o$8b2o$6b3o$6bo7$4bo$4b3o$7b
o$6b2o$14b2o$14bo$15b3o$17bo!

AlbertArmStain posted a partial (which I "completed" in a likely-useless way):

Extremely edgy eater factory partial:

Code: Select all

x = 21, y = 29, rule = LifeHistory
14.A$13.A.A3.2A$13.A.A3.2A$14.A14$C$C.C$3C$2.C7$5.2A$5.2A!

[hotcrystal0]

What is a wick/agar where some copies of the main part are shifted by some generations called?

Code: Select all

x = 39, y = 6, rule = B3/S23
30bo4b3o$7bo4b2o4b2o3b3o3b3o3b3o$3o3b2o4bobo2b2obo2bo2bobo3b3o3bo$o5b
obo3bobo3bobo2b2obo2b2ob2ob2obo$bo5bo5bo5bo5bo4b2o3b3o$2bo!

[confocaloid]

What is a wick/agar where some copies of the main part are shifted by some generations called?

Code: Select all

x = 39, y = 6, rule = B3/S23
30bo4b3o$7bo4b2o4b2o3b3o3b3o3b3o$3o3b2o4bobo2b2obo2bo2bobo3b3o3bo$o5b
obo3bobo3bobo2b2obo2b2ob2ob2obo$bo5bo5bo5bo5bo4b2o3b3o$2bo!

I believe some examples of this were posted in discussion Talk:Honey farm hasslers (an incomplete p26 pre-pulsar hassling wick; a p25 pre-pulsar hassler).