Crawlers

[qqd]

Here is another orthogonal 7c/69 Herschel crawler (unsimplified speed 28c/276) which I doubt is useful:

Code: Select all

x = 646, y = 207, rule = B3/S23
346bo$346bobo$346b3o$348bo17$368b2o$367b2o$369bo18$277bo$277b2o$276bo
bo19$437b2o$436b2o$438bo18$208bo$208b2o$207bobo19$506b2o$505b2o$507bo
18$139bo$139b2o$138bobo19$575b2o$574b2o$576bo18$70bo$70b2o$69bobo19$644b
2o$643b2o$645bo18$bo$b2o$obo!

[johamwit]

Given the ubiquity of Herschels in LIFE, it is only a matter of perseverance to find a ridiculous quantity of them. It remains to be defined which of them can be considered “notable”, and therefore appropriate to publish. This is from this morning:

Code: Select all

x = 240, y = 167, rule = LifeHistory
55.2A.A$55.A.2A9$111.2A.A$111.A.2A6$2A$2A$21.D$17.2E2.3D143.2A.A$17.
2E2.D.D143.A.2A$23.D2$49.D$45.2E2.3D$45.2E2.D.D$51.D2$77.D$5.2A10.2E
54.2E2.3D$5.2A10.2E54.2E2.D.D$79.D2$105.D$45.2E54.2E2.3D$45.2E54.2E2.
D.D$107.D82.2A$19.2A.A167.2A$19.A.2A110.D$73.2E54.2E2.3D$73.2E54.2E2.
D.D$135.D$207.D.3D.3D5.3D.D4.D2.3D.3D$161.E44.D4.D.D.D5.D4.D2.2D4.D3.
D$101.2E54.2EA.3E42.D2.3D.3D5.3D2.D3.D2.3D.3D$101.2E54.2EA.E.E42.D2.D
3.D.D7.D2.D3.D4.D3.D$163.E43.D.3D.3D2.D2.3D.D3.3D.3D.3D$75.2A.A139.D$
75.A.2A$129.2E$129.2E4$157.2E$157.2E$173.2A$131.2A.A38.2A$131.A.2A11$
57.2E56.2A56.2A$57.E57.A57.A$58.E57.A57.A$57.2E56.2A56.2A5$26.2A$26.
2A2$59.2E9.2E45.2E9.2E$59.2E9.2E45.2E9.2E$207.D.3D.3D5.3D.D3.3D.3D.D.
D$45.D57.D57.E44.D2.D3.D.D3.D3.D2.D4.D3.D.D.D$41.2A2.3D55.3D55.3E42.D
2.3D.3D2.D2.3D2.D2.3D.3D.3D$41.2A2.D.D55.D.D55.E.E42.D4.D.D.D.D3.D4.D
2.D3.D5.D$47.D57.D57.E43.D.3D.3D5.3D.D3.3D.3D3.D6$70.2E56.2E$70.2E56.
2E$41.2E56.2E56.2E$41.2E56.2E56.2E6$76.D57.D$74.D.D55.D.D$74.3D55.3D$
74.D57.D2$30.2E9.2E45.2E9.2E45.2E9.2E$30.2E9.2E45.2E9.2E45.2E9.2E8$
86.2A56.2A$87.A57.A$86.A57.A$86.2A56.2A12$99.2A.A$99.A.2A25.2A.A$128.
A.2A25.2A.A$157.A.2A25.2A.A$186.A.2A13$43.2A$43.2A$45.D$45.3D26.D$45.
D.D26.3D26.D$47.D26.D.D26.3D26.D74.D.3D.3D6.D2.D3.3D.3D.D.D$76.D26.D.
D26.3D26.E44.D4.D.D.D5.2D3.D4.D3.D.D.D$105.D26.D.D26.3E42.D2.3D.3D6.D
3.D2.3D2.D2.3D$134.D26.E.E42.D2.D5.D6.D3.D2.D3.D5.D$163.E43.D.3D.3D2.
D2.3D.D3.3D.D5.D$218.D4$70.2E$70.2E27.2E$99.2E27.2E$128.2E27.2E$157.
2E!
#C [[ GPS 512 ]]

So, I propose having a dedicated thread just for them: the H-crawlers (or climbers; BTW, neither term is defined in the lexicon as of today).

EDIT: THE BOOK states that "... reactions that involve an object moving through a stable or glider-based wick—such reactions are called crawlers OR climbers"

[muzik]

Looking back through this thread has proven a tad confusing, to say the least. Most of the patterns here appear to be fuses, rather than crawlers (if we take crawler to mean "travels through some periodic one-dimensional medium, possibly translating and rephrasing it, but ultimately leaving it a state where an identical such signal can be sent through it again" - which fits all the ones we have spaceships of so far, at least), with only a few exceptions, most of which already have their own threads. We already have a thread for collecting such fuses: viewtopic.php?f=2&t=1299

I was checking through both threads in light of the recent (15,11)c/107 completion to see if there were any more examples of spaceship-probable crawler mechanisms that could be added to the crawler page on the wiki. Correct me if I missed any, but haven't all of the qualifying ones mentioned in this thread so far either already been added to the wiki, been split into their own thread for more focused working purposes, or had spaceships constructed outright?

[Period1GliderGun]

Wing climbs a trail of blinkers at (6,5)c/83:

Code: Select all

x = 37, y = 28, rule = B3/S23
2b2o$bobo$o2bo$b2o11b3o5$20bo$20bo$20bo5$24b3o5$30bo$30bo$30bo5$34b3o
!

The ash eventually destroys it after about 15 cycles.

EDIT: (18,1)c/48 crawler - every other beehive is regenerated:

Code: Select all

x = 156, y = 16, rule = B3/S23
154b2o$153b2o$154b2o$155bo$145bo$127bo16bobo$109bo16bobo15bobo$91bo16b
obo15bobo16bo$73bo16bobo15bobo16bo$55bo16bobo15bobo16bo$37bo16bobo15b
obo16bo$19bo16bobo15bobo16bo$bo16bobo15bobo16bo$obo15bobo16bo$obo16bo
$bo!

EDIT2: Asymmetric 11c/85d crawler:

Code: Select all

x = 156, y = 16, rule = B3/S23
154b2o$153b2o$154b2o$155bo$145bo$127bo16bobo$109bo16bobo15bobo$91bo16b
obo15bobo16bo$73bo16bobo15bobo16bo$55bo16bobo15bobo16bo$37bo16bobo15b
obo16bo$19bo16bobo15bobo16bo$bo16bobo15bobo16bo$obo15bobo16bo$obo16bo
$bo!

The problem is cleaning up the pi at the back / converting it into something useful.

[yyh_baboon]

EDIT2: Asymmetric 11c/85d crawler:

Code: Select all

x = 156, y = 16, rule = B3/S23
154b2o$153b2o$154b2o$155bo$145bo$127bo16bobo$109bo16bobo15bobo$91bo16b
obo15bobo16bo$73bo16bobo15bobo16bo$55bo16bobo15bobo16bo$37bo16bobo15b
obo16bo$19bo16bobo15bobo16bo$bo16bobo15bobo16bo$obo15bobo16bo$obo16bo
$bo!

The problem is cleaning up the pi at the back / converting it into something useful.

Seems like the wrong RLE.
Can you fix it?

[Period1GliderGun]

Seems like the wrong RLE.
Can you fix it?

Ach, you're right. Here is the correct RLE:

Code: Select all

x = 37, y = 34, rule = B3/S23
3o10$12bo$12bo$12bo10$22b3o9$33b3o$32bo3bo$32b2ob2o!

Also, here is a relatively clean (27,1)c/241 crawler. No gliders unfortunately.

Code: Select all

x = 14, y = 65, rule = B3/S23
2b3o26$2bo$2bo$2bo26$3o8$10b3o$9bo3bo$9b2ob2o!

[I6_I6]

Here are a couple of Herschel-based crawlers that are too dirty to even be worth posting, but which I'm posting anyway.
92c/1202o:

Code: Select all

x = 392, y = 13, rule = B3/S23
22b2o90b2o90b2o90b2o90b2o$22b2o90b2o90b2o90b2o90b2o4$68b2o90b2o90b2o
90b2o$68b2o90b2o90b2o90b2o3$o$obo$3o$2bo!

32c/278o:

Code: Select all

x = 732, y = 18, rule = B3/S23
4bo$2b2ob2o$bo4bo19b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b
2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o$o25b2o
30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o
30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o$o5bo$3o3b2o$bo4bo$2bo2bo$3b2o
7$3b3o$3bo6b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o
30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o$2b3o5b2o30b2o
30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o30b2o
30b2o30b2o30b2o30b2o30b2o30b2o30b2o!

EDIT (March 14th):
This is technically a fuse, not a crawler:

Code: Select all

x = 443, y = 442, rule = B3/S23
o2b2o$b3o$2bo5$9bo$8b2o$8bobo11$32b2o$31b2o$33bo21$45bo$44b2o$44bobo
11$68b2o$67b2o$69bo21$81bo$80b2o$80bobo11$104b2o$103b2o$105bo21$117bo$
116b2o$116bobo11$140b2o$139b2o$141bo21$153bo$152b2o$152bobo11$176b2o$
175b2o$177bo21$189bo$188b2o$188bobo11$212b2o$211b2o$213bo21$225bo$224b
2o$224bobo11$248b2o$247b2o$249bo21$261bo$260b2o$260bobo11$284b2o$283b
2o$285bo21$297bo$296b2o$296bobo11$320b2o$319b2o$321bo21$333bo$332b2o$
332bobo11$356b2o$355b2o$357bo21$369bo$368b2o$368bobo11$392b2o$391b2o$
393bo21$405bo$404b2o$404bobo11$428b2o$427b2o$429bo21$441bo$440b2o$440b
obo!

It's a 16c/40d dirty B fuse travelling on gliders. It produces a backward pi every glider, so I think it might be salvageable. On its own, I have no idea when it stabilizes into a periodic fuse (or whether it can go on infinitely at all).

[MDA]

Crossposting a clean 23c/69 B crawler discovered by me:

[…]

[…] New crawler (23c/69):

Code: Select all

x = 392, y = 304, rule = B3/S23
93bo$94bo$92b3o16$86bobo$87b2o$87bo15$82bo$80bobo$81b2o15$75bo$76b2o$
75b2o15$70bo$71bo$69b3o16$63bobo$64b2o$64bo15$59bo$57bobo$58b2o15$52bo
$53b2o$52b2o15$47bo$48bo$46b3o16$40bobo$41b2o$41bo15$36bo$34bobo$35b2o
15$29bo$30b2o$29b2o15$24bo$25bo$23b3o16$17bobo$18b2o$18bo15$13bo$11bob
o$12b2o15$6bo$7b2o$6b2o15$bo$2bo$3o17$10bo$10b2o$11b2o$10b2o4$22b2o21b
2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b
2o21b2o$22b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o
21b2o21b2o21b2o21b2o21b2o!

The gliders are required to turn the R into a clean B-heptomino, but they are returned, so nothing is lost.

Edit (June 26th, 2026, 7:48 AM): It can be paired to produce two streams of gliders (one in both directions), simultaneously countershifting the blocks on its track to the line where they originally were:

Code: Select all

x = 407, y = 565, rule = B3/S23
143bo$141bobo$142b2o15$136bo$137b2o$136b2o15$131bo$132bo$130b3o16$124b
obo$125b2o$125bo15$120bo$118bobo$119b2o15$113bo$114b2o$113b2o15$108bo$
109bo$107b3o16$101bobo$102b2o$102bo15$97bo$95bobo$96b2o15$90bo$91b2o$
90b2o15$85bo$86bo$84b3o16$78bobo$79b2o$79bo15$74bo$72bobo$73b2o15$67bo
$68b2o$67b2o15$62bo$63bo$61b3o2$17bo$16b2o$16bobo12$55bobo2bobo4bo$56b
2o2bo4b2o4bo$22b2o21b2o9bo3b3ob3o4b2o$22b2o21b2o17b2o6b2o$62bo2bo6bo$
62b2o7bo$61bo$10b2o51b3o$11b2o51b2o17b2o21b2o21b2o21b2o21b2o21b2o21b2o
21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o$10b2o71b2o21b2o21b2o21b2o21b
2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o$10bo17$3o$2bo$bo
15$6b2o$7b2o$6bo15$12b2o$11bobo$13bo15$18bo$18b2o$17bobo16$23b3o$25bo$
24bo15$29b2o$30b2o$29bo15$35b2o$34bobo$36bo15$41bo$41b2o$40bobo16$46b
3o$48bo$47bo15$52b2o$53b2o$52bo15$58b2o$57bobo$59bo15$64bo$64b2o$63bob
o16$69b3o$71bo$70bo15$75b2o$76b2o$75bo15$81b2o$80bobo$82bo15$87bo$87b
2o$86bobo16$92b3o$94bo$93bo!

Does anyone have a 23c/69 helix?

[I6_I6]

Crossposting a clean 23c/69 B crawler discovered by me:

[…]

[…] New crawler (23c/69):

Code: Select all

x = 392, y = 304, rule = B3/S23
93bo$94bo$92b3o16$86bobo$87b2o$87bo15$82bo$80bobo$81b2o15$75bo$76b2o$
75b2o15$70bo$71bo$69b3o16$63bobo$64b2o$64bo15$59bo$57bobo$58b2o15$52bo
$53b2o$52b2o15$47bo$48bo$46b3o16$40bobo$41b2o$41bo15$36bo$34bobo$35b2o
15$29bo$30b2o$29b2o15$24bo$25bo$23b3o16$17bobo$18b2o$18bo15$13bo$11bob
o$12b2o15$6bo$7b2o$6b2o15$bo$2bo$3o17$10bo$10b2o$11b2o$10b2o4$22b2o21b
2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b
2o21b2o$22b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o
21b2o21b2o21b2o21b2o21b2o!

The gliders are required to turn the R into a clean B-heptomino, but they are returned, so nothing is lost.

Edit (June 26th, 2026, 7:48 AM): It can be paired to produce two streams of gliders (one in both directions), simultaneously countershifting the blocks on its track to the line where they originally were:

Code: Select all

x = 407, y = 565, rule = B3/S23
143bo$141bobo$142b2o15$136bo$137b2o$136b2o15$131bo$132bo$130b3o16$124b
obo$125b2o$125bo15$120bo$118bobo$119b2o15$113bo$114b2o$113b2o15$108bo$
109bo$107b3o16$101bobo$102b2o$102bo15$97bo$95bobo$96b2o15$90bo$91b2o$
90b2o15$85bo$86bo$84b3o16$78bobo$79b2o$79bo15$74bo$72bobo$73b2o15$67bo
$68b2o$67b2o15$62bo$63bo$61b3o2$17bo$16b2o$16bobo12$55bobo2bobo4bo$56b
2o2bo4b2o4bo$22b2o21b2o9bo3b3ob3o4b2o$22b2o21b2o17b2o6b2o$62bo2bo6bo$
62b2o7bo$61bo$10b2o51b3o$11b2o51b2o17b2o21b2o21b2o21b2o21b2o21b2o21b2o
21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o$10b2o71b2o21b2o21b2o21b2o21b
2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o$10bo17$3o$2bo$bo
15$6b2o$7b2o$6bo15$12b2o$11bobo$13bo15$18bo$18b2o$17bobo16$23b3o$25bo$
24bo15$29b2o$30b2o$29bo15$35b2o$34bobo$36bo15$41bo$41b2o$40bobo16$46b
3o$48bo$47bo15$52b2o$53b2o$52bo15$58b2o$57bobo$59bo15$64bo$64b2o$63bob
o16$69b3o$71bo$70bo15$75b2o$76b2o$75bo15$81b2o$80bobo$82bo15$87bo$87b
2o$86bobo16$92b3o$94bo$93bo!

Does anyone have a 23c/69 helix?

Here's an over-unity reaction, producing 1 extra SW glider:

Code: Select all

x = 392, y = 300, rule = B3/S23
93bo$94bo$92b3o16$86bobo$87b2o$87bo15$82bo$80bobo$81b2o15$75bo$76b2o$
75b2o15$70bo$71bo$69b3o16$63bobo$64b2o$64bo15$59bo$57bobo$58b2o15$52b
o$53b2o$52b2o15$47bo$48bo$46b3o16$40bobo$41b2o$41bo15$36bo$34bobo$35b
2o15$29bo$30b2o$29b2o15$24bo$25bo$23b3o16$17bobo$18b2o$18bo15$13bo$11b
obo$12b2o15$6bo$7b2o$6b2o15$bo$2bo$3o13$10bo$10b2o$11b2o$10b2o4$22b2o
21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o
21b2o21b2o$22b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b
2o21b2o21b2o21b2o21b2o21b2o!

There are probably lots of useful reactions waiting to be found.

EDIT:
More block tracks:

Code: Select all

x = 674, y = 305, rule = B3/S23
672bo$671bo$671b3o16$631bobo$631b2o$632bo15$591bo$591bobo$591b2o15$552b
o$550b2o$551b2o15$511bo$510bo$510b3o16$470bobo$470b2o$471bo15$430bo$430b
obo$430b2o15$391bo$389b2o$390b2o15$350bo$349bo$349b3o16$309bobo$309b2o
$310bo15$269bo$269bobo$269b2o15$230bo$228b2o$229b2o15$189bo$188bo$188b
3o16$148bobo$148b2o$149bo15$108bo$108bobo$108b2o15$69bo$67b2o$68b2o15$
28bo$27bo$27b3o18$o$2o$b2o$2o4$12b2o21b2o21b2o21b2o21b2o21b2o21b2o21b
2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o$12b2o21b2o21b2o21b2o21b
2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o!

I think this crawler can support itself, but I haven't found any clean reactions yet.

[MDA]

[…]

I think this crawler can support itself, but I haven't found any clean reactions yet.

I found this reaction which may be useful for the spaceship’s tail:

Code: Select all

x = 404, y = 662, rule = B3/S23
93bo$94bo$92b3o16$86bobo$87b2o$87bo15$82bo$80bobo$81b2o15$75bo$76b2o$
75b2o15$70bo$71bo$69b3o16$63bobo$64b2o$64bo15$59bo$57bobo$58b2o15$52bo
$53b2o$52b2o15$47bo$48bo$46b3o16$40bobo$41b2o$41bo15$36bo$34bobo$35b2o
15$29bo$30b2o$29b2o15$24bo$25bo$23b3o16$17bobo$18b2o$18bo15$13bo$11bob
o$12b2o15$6bo$7b2o$6b2o15$bo$2bo$3o13$10bo$10b2o$11b2o$10b2o4$22b2o21b
2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b
2o21b2o$22b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o
21b2o21b2o21b2o21b2o21b2o63$34b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o
21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o$34b2o21b2o21b2o21b2o21b
2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o21b2o4$22b2o$
23b2o$22b2o$22bo13$12b3o$14bo$13bo15$18b2o$19b2o$18bo15$24b2o$23bobo$
25bo15$30bo$30b2o$29bobo16$35b3o$37bo$36bo15$41b2o$42b2o$41bo15$47b2o$
46bobo$48bo15$53bo$53b2o$52bobo16$58b3o$60bo$59bo15$64b2o$65b2o$64bo
15$70b2o$69bobo$71bo15$76bo$76b2o$75bobo16$81b3o$83bo$82bo15$87b2o$88b
2o$87bo15$93b2o$92bobo$94bo15$99bo$99b2o$98bobo16$104b3o$106bo$105bo!

Edit (June 26th, 2026, 8:49 AM): I am currently trying to combine two of the above pattern to make a kickback.

[I6_I6]

This crawler looked familiar to me, and sure enough, I dug up this thread:
https://conwaylife.com/forums/viewtopic.php?t=4941

is this a new climber, or has it been discovered already?

It was discovered by Nicolay Beluchenko in 2006:

Code: Select all

#C 23c/69 fuse, tamed with use of c/3 technology
x = 70, y = 261, rule = S23/B3
27boo$27boo22$27boo$27boo22$27boo$27boo22$27boo$27boo22$27boo$27boo22$
27boo$27boo22$27boo$27boo10$22bo$21b3o$20boobbo4$19bo18boo$20boo16boob
oo$20b4obboo4boo4boobb4o$21boo3bo5booboo4bo4bo$24bobobo3bobboo7boo$19b
oboboo4bo5boo$21bo3bo$7bo11b3o$5b4o$booboo3bo3bo$boobbo5b4o$obbo7bo3bo
$9bobbobo$10bo5$21b3o4$19boo$19boo5$23boo$23boo$$30bo11boo5b3o9boo$29b
3o10boobooboboboo7booboobo$28bobboo8bobobbobobo3bo4boo3bob3o$27b3oboo
8bobbo3boobobo4boboboboo3bo$28b5o7bobb4obobo5b3obob3o3bo$30bo12boboobo
bobbooboobbo3bo$40bo4b4o6boobbobboo$39b3o9bo4bo5b3o$37boo3bo6bo6bo3boo
bboo$22bo14b3o3boobbo8boo3boo$22bo15boo3bo12bo4booboo$22bo33bo3$19boo$
19boo3$31bobb3o$21boo8bo$21boo7b5o3bo$33boo3bo$33boo3bo$30b3obbo$31b5o
$31b3obo7$22boo$21bo$22boo$23boo3boo$22b3o5bo$23bobo3boo$24bo3b3o$29b
oo$26boobbo$25boo$21boobbooboo$21boo4bo13$42boo5b3o9boo$42booboobobob
oo7booboobo$41bobobbobobo3bo4boo3bob3o$41bobbo3boobobo4boboboboo3bo$
40bobb4obobo5b3obob3o3bo$43boboobobobbooboobbo3bo$40bo4b4o6boobbobboo$
39b3o9bo4bo5b3o$37boo3bo6bo6bo3boobboo$37b3o3boobbo8boo3boo$38boo3bo
12bo4booboo$56bo$27b5o$26bo$25bo8boo$24boboobo5bo$25bo4boo4boo$31bobbo
boo$35boo!

23c/69 is c/3 simplified, and people briefly worked on completing a p69 c/3 ship using the crawler last year. It was never finished, but if it happens, it'll be a new unsimplified speed.

[MDA]

[…]

[…]

[The 23c/69 crawler] was discovered by Nicolay Beluchenko in 2006:

[…]

23c/69 is c/3 simplified, and people briefly worked on completing a p69 c/3 ship using the crawler last year. It was never finished, but if it happens, it'll be a new unsimplified speed.

In the thread you posted, it seems no one ever found a way to turn the 23c/69 fuse into an actual crawler, so that part is new.

Regarding the plan to create an engineered spaceship based on this crawler, are there any search programs which create XWSS helices for a given speed?

[yyh_baboon]

Actually this time there is no need for a full helix. As the speed is c/3 simplified, you can actually use the(pretty big) toolbox of c/3 spaceships to turn a p69 WSS stream into a glider stream.

[MDA]

Actually this time there is no need for a full helix. As the speed is c/3 simplified, you can actually use the(pretty big) toolbox of c/3 spaceships to turn a p69 WSS stream into a glider stream.

This is true, but it still is better to have a c/3o spaceship with no c/3o parts, unless it is easier to manipulate true c/3os than to build a new helix.

Are there any c/3 backrakes which could synthesize blocks for the track?

[I6_I6]

Actually this time there is no need for a full helix. As the speed is c/3 simplified, you can actually use the(pretty big) toolbox of c/3 spaceships to turn a p69 WSS stream into a glider stream.

This is true, but it still is better to have a c/3o spaceship with no c/3o parts, unless it is easier to manipulate true c/3os than to build a new helix.

Are there any c/3 backrakes which could synthesize blocks for the track?

No; if one existed, there'd already be a 23c/69, but there isn't.
Edit: I think this discussion should be moved over to the spaceships thread.

[MDA]

A new glide-reflective 34c/162o (17c/81 simplified) climber found by me. It requires three input glider tracks and outputs three glider streams and a block trail:

Code: Select all

x = 420, y = 429, rule = B3/S23
419bo$417b2o$418b2o11$2bo$obo$b2o11$405bo$403b2o$404b2o13$343bobo$343b
2o$344bo10$8bo$9bo$7b3o12$329bobo$329b2o$330bo12$270bo$268b2o$269b2o
11$15bo$13bobo$14b2o11$256bo$254b2o$255b2o13$194bobo$194b2o$195bo10$
21bo$22bo$20b3o12$180bobo$180b2o$181bo12$121bo$119b2o$120b2o11$28bo$
26bobo$27b2o11$107bo$105b2o$106b2o37$43bo$43b2o$44b2o$43b2o8$68b3o$68b
o$69bo11$30b2o$31b2o$30bo11$82b3o$82bo$83bo12$143b2o$143bobo$143bo11$
24bo$24b2o$23bobo11$157b2o$157bobo$157bo13$217b3o$217bo$218bo11$17b2o$
18b2o$17bo11$231b3o$231bo$232bo12$292b2o$292bobo$292bo11$11bo$11b2o$
10bobo11$306b2o$306bobo$306bo13$366b3o$366bo$367bo11$4b2o$5b2o$4bo11$
380b3o$380bo$381bo!

This climber is slow enough not to require a helix for support.

Edit (July 21st, 2026, 7:57 PM): Changed rule from LifeHistory to Life.

[yyh_baboon]

A new glide-reflective 34c/162o (17c/81 simplified) climber found by me. It requires three input glider tracks and outputs three glider streams and a block trail:

Code: Select all

x = 420, y = 429, rule = B3/S23
419bo$417b2o$418b2o11$2bo$obo$b2o11$405bo$403b2o$404b2o13$343bobo$343b
2o$344bo10$8bo$9bo$7b3o12$329bobo$329b2o$330bo12$270bo$268b2o$269b2o
11$15bo$13bobo$14b2o11$256bo$254b2o$255b2o13$194bobo$194b2o$195bo10$
21bo$22bo$20b3o12$180bobo$180b2o$181bo12$121bo$119b2o$120b2o11$28bo$
26bobo$27b2o11$107bo$105b2o$106b2o37$43bo$43b2o$44b2o$43b2o8$68b3o$68b
o$69bo11$30b2o$31b2o$30bo11$82b3o$82bo$83bo12$143b2o$143bobo$143bo11$
24bo$24b2o$23bobo11$157b2o$157bobo$157bo13$217b3o$217bo$218bo11$17b2o$
18b2o$17bo11$231b3o$231bo$232bo12$292b2o$292bobo$292bo11$11bo$11b2o$
10bobo11$306b2o$306bobo$306bo13$366b3o$366bo$367bo11$4b2o$5b2o$4bo11$
380b3o$380bo$381bo!

This climber is slow enough not to require a helix for support.

Edit (July 21st, 2026, 7:57 PM): Changed rule from LifeHistory to Life.

The problem here is… the gliders aren’t synchronised, so it would be difficult to build a climber using this:(

[MDA]

[…]

The problem here is… the gliders aren’t synchronised, so it would be difficult to build a climber using this:(

Are there any search programs which take crawlers/climbers as input and search for a valid interweaving between two of them? This could help find a tail for the spaceship.

Edit (July 22nd, 2026, 10:46 PM): Another climber, this one 27c/162d (c/6d simplified):

Code: Select all

x = 450, y = 477, rule = B3/S23
obo$b2o$bo50$38bo$36bobo$37b2o13$14bo$15b2o$14b2o50$51bo$52bo$50b3o14$
27bobo$28b2o$28bo50$65bo$63bobo$64b2o13$41bo$42b2o$41b2o50$78bo$79bo$
77b3o14$54bobo$55b2o$55bo50$92bo$90bobo$91b2o49$112bo$112b2o$113b2o$
112b2o7$126bo$125b2o$125bobo12$193b2o$192b2o$194bo11$261bo$260b2o$260b
obo8$177b3o$177bo$178bo2$328b2o$327b2o$329bo8$245b2o$245bobo$245bo$
396bo$395b2o$395bobo8$312b3o$312bo$313bo12$380b2o$380bobo$380bo11$447b
3o$447bo$448bo!

Edit (July 23rd, 2026, 8:50 AM): Changed rule from LifeHistory to Life and added simplified speed.

Edit (July 23rd, 2026, 9:07 AM): Yet another (almost-)climber, this time oblique ((27,1)c/87):

Code: Select all

x = 240, y = 120, rule = B3/S23
23bo$21bobo$22b2o15$238bo$237bo$237b3o4$16bobo$17b2o$17bo15$190bo$188b
2o$189b2o3$12bo$13bo$11b3o16$140bo$140bobo$140b2o3$6bo$7b2o$6b2o16$91b
obo$91b2o$92bo3$2bo$obo$b2o15$43bo$42bo$42b3o5$11bo$11b2o$12b2o$12bo$
11bo!

It receives two gliders as input and outputs two gliders, but leaves behind blocks in pairs.

Edit (July 23rd, 2026, 9:58 AM): Another crawler (70c/210):

Code: Select all

x = 295, y = 327, rule = B3/S23
36bo$37bo$35b3o24$293bo$292bo$292b3o25$19bo$17bobo$18b2o24$170bo$170bo
bo$170b2o24$bo$2bo$3o24$48bo$47bo$47b3o23b2o68b2o$73b2o68b2o11$18bo$
18b2o$19b2o$19bo$18bo17$38b2o68b2o68b2o$38b2o68b2o68b2o26$109b2o$108b
2o$110bo24$9b2o$10b2o$9bo24$232bo$231b2o$231bobo24$27bo$27b2o$26bobo
51$44b2o$45b2o$44bo!

To complete this one, I placed a block in a sparky area of the crawler so it would be deleted and regenerated elsewhere.

Edit (July 23rd, 2026, 8:53 PM): Yet another crawler, supported by I6_I6’s reaction ((23,1)c/54):

Code: Select all

x = 318, y = 237, rule = B3/S23
76bo$77b2o$76b2o11$66bobo$67b2o$67bo10$57bo$58b2o$57b2o11$47bobo$48b2o
$48bo10$38bo$39b2o$38b2o11$28bobo$29b2o$29bo10$19bo$20b2o$19b2o11$9bob
o$10b2o$10bo10$o$b2o$2o4$23b2o$23b2o21b2o$46b2o21b2o$69b2o21b2o$6bo85b
2o21b2o$6b2o107b2o21b2o$7b2o129b2o21b2o$7bo153b2o21b2o$6bo177b2o21b2o$
207b2o3$24b2o$23b2o$25bo12$61bo$60b2o$60bobo13$97b2o$96b2o$98bo12$134b
o$133b2o$133bobo13$170b2o$169b2o$171bo12$207bo$206b2o$206bobo13$243b2o
$242b2o$244bo12$280bo$279b2o$279bobo13$316b2o$315b2o$317bo!

I completed the crawler using the same principle as the previous one.

Edit (July 23rd, 2026, 10:13 PM): Does anyone have a (23,1)c/54 helix?

[yyh_baboon]

Wait… A 70c/210 crawler?
There is enough c/3 technology to support that one.

[I6_I6]

Edit (July 23rd, 2026, 8:53 PM): Yet another crawler, supported by I6_I6’s reaction ((23,1)c/54):

Code: Select all

x = 318, y = 237, rule = B3/S23
76bo$77b2o$76b2o11$66bobo$67b2o$67bo10$57bo$58b2o$57b2o11$47bobo$48b2o
$48bo10$38bo$39b2o$38b2o11$28bobo$29b2o$29bo10$19bo$20b2o$19b2o11$9bob
o$10b2o$10bo10$o$b2o$2o4$23b2o$23b2o21b2o$46b2o21b2o$69b2o21b2o$6bo85b
2o21b2o$6b2o107b2o21b2o$7b2o129b2o21b2o$7bo153b2o21b2o$6bo177b2o21b2o$
207b2o3$24b2o$23b2o$25bo12$61bo$60b2o$60bobo13$97b2o$96b2o$98bo12$134b
o$133b2o$133bobo13$170b2o$169b2o$171bo12$207bo$206b2o$206bobo13$243b2o
$242b2o$244bo12$280bo$279b2o$279bobo13$316b2o$315b2o$317bo!

I completed the crawler using the same principle as the previous one.

Edit (July 23rd, 2026, 10:13 PM): Does anyone have a (23,1)c/54 helix?

The crawler doesn't necessarily need the block trail:

Code: Select all

x = 318, y = 237, rule = B3/S23
76bo$77b2o$76b2o11$66bobo$67b2o$67bo10$57bo$58b2o$57b2o11$47bobo$48b2o
$48bo10$38bo$39b2o$38b2o11$28bobo$29b2o$29bo10$19bo$20b2o$19b2o11$9bo
bo$10b2o$10bo10$o$b2o$2o8$6bo$6b2o$7b2o$7bo$6bo4$24b2o$23b2o$25bo12$61b
o$60b2o$60bobo13$97b2o$96b2o$98bo12$134bo$133b2o$133bobo13$170b2o$169b
2o$171bo12$207bo$206b2o$206bobo13$243b2o$242b2o$244bo12$280bo$279b2o$
279bobo13$316b2o$315b2o$317bo!

In fact, it doesn't need the top glider stream either, but that makes it messy:

Code: Select all

x = 312, y = 127, rule = B3/S23
o$2o$b2o$bo$o4$18b2o$17b2o$19bo12$55bo$54b2o$54bobo13$91b2o$90b2o$92b
o12$128bo$127b2o$127bobo13$164b2o$163b2o$165bo12$201bo$200b2o$200bobo
13$237b2o$236b2o$238bo12$274bo$273b2o$273bobo13$310b2o$309b2o$311bo!

It might be possible to have 2 copies of those interact to tame it produce gliders in the right spacing to make the crawler chainable, like in the (28,3)c/84 crawler that the annelid was based on.

EDIT:
Under-unity block shifter:

Code: Select all

x = 312, y = 130, rule = B3/S23
14b2o$14b2o21b2o$37b2o21b2o$o59b2o21b2o$2o81b2o21b2o$b2o103b2o21b2o$b
o127b2o21b2o$o151b2o21b2o$175b2o21b2o$198b2o2$18b2o$17b2o$19bo12$55bo
$54b2o$54bobo13$91b2o$90b2o$92bo12$128bo$127b2o$127bobo13$164b2o$163b
2o$165bo12$201bo$200b2o$200bobo13$237b2o$236b2o$238bo12$274bo$273b2o$
273bobo13$310b2o$309b2o$311bo!

This one produces another glider, but in the wrong direction:

Code: Select all

x = 312, y = 133, rule = B3/S23
7b2o$7b2o21b2o$30b2o21b2o$53b2o21b2o$76b2o21b2o$99b2o21b2o$o121b2o21b
2o$2o143b2o21b2o$b2o165b2o21b2o$bo189b2o$o4$18b2o$17b2o$19bo12$55bo$54b
2o$54bobo13$91b2o$90b2o$92bo12$128bo$127b2o$127bobo13$164b2o$163b2o$165b
o12$201bo$200b2o$200bobo13$237b2o$236b2o$238bo12$274bo$273b2o$273bobo
13$310b2o$309b2o$311bo!

Close, but it doesn't replace the blocks:

Code: Select all

x = 304, y = 129, rule = B3/S23
2b2o$2b2o21b2o$25b2o21b2o$48b2o21b2o$71b2o21b2o$94b2o21b2o$2o115b2o21b
2o$3ob2o134b2o21b2o$b2ob3o156b2o21b2o$3ob2o180b2o$b2o6b3o$9bo$10bo12$
46b2o$46bobo$46bo13$82b3o$82bo$83bo12$119b2o$119bobo$119bo13$155b3o$155b
o$156bo12$192b2o$192bobo$192bo13$228b3o$228bo$229bo12$265b2o$265bobo$
265bo13$301b3o$301bo$302bo!

EDIT 2:
Forerake:

Code: Select all

x = 312, y = 133, rule = B3/S23
16b2o$16b2o21b2o$39b2o21b2o$62b2o21b2o$85b2o21b2o$108b2o21b2o$o130b2o
21b2o$2o152b2o21b2o$b2o174b2o21b2o$bo198b2o$o4$18b2o$17b2o$19bo12$55b
o$54b2o$54bobo13$91b2o$90b2o$92bo12$128bo$127b2o$127bobo13$164b2o$163b
2o$165bo12$201bo$200b2o$200bobo13$237b2o$236b2o$238bo12$274bo$273b2o$
273bobo13$310b2o$309b2o$311bo!

EDIT 3:
LWSS jumpscare:

Code: Select all

x = 319, y = 139, rule = B3/S23
o$2o$b2o$bo$o4$18b2o$17b2o$19bo2$7bo$7b2o$8b2o$8bo$7bo4$25b2o$24b2o$26b
o28bo$54b2o$54bobo10$62bo$61b2o$61bobo$91b2o$90b2o$92bo10$98b2o$97b2o
$99bo28bo$127b2o$127bobo10$135bo$134b2o$134bobo$164b2o$163b2o$165bo10$
171b2o$170b2o$172bo28bo$200b2o$200bobo10$208bo$207b2o$207bobo$237b2o$
236b2o$238bo10$244b2o$243b2o$245bo28bo$273b2o$273bobo10$281bo$280b2o$
280bobo$310b2o$309b2o$311bo10$317b2o$316b2o$318bo!

[MDA]

A 30c/110 climber:

Code: Select all

x = 258, y = 239, rule = B3/S23
227bo$226bo$226b3o26$169bo$169bobo$169b2o25$112bo$111bo$111b3o26$54bo$
54bobo$54b2o24$o$2o$b2o$2o14$26bo$25b2o$25bobo26$83b2o$82b2o$84bo25$
141bo$140b2o$140bobo26$198b2o$197b2o$199bo25$256bo$255b2o$255bobo!

Edit (July 31st, 2026, 9:40 AM): A 36c/114 crawler:

Code: Select all

x = 92, y = 145, rule = B3/S23
11bobo$12b2o$12bo26$4bo$5b2o$4b2o27$36b2o34b2o$36b2o34b2o3$o$2o$b2o$bo
$o6$18b2o34b2o34b2o$18b2o34b2o34b2o13$3o$2bo$bo26$8b2o$7bobo$9bo27$15b
3o$17bo$16bo!

Edit (July 31st, 2026, 10:00 AM): A 46c/190 climber, accidentally discovered by Sober ABC:

Code: Select all

x = 222, y = 229, rule = B3/S23
172bobo$172b2o$173bo45$80bo$78b2o$79b2o55$o$2o$b2o$2o24$32b2o$32bobo$
32bo46$125b3o$125bo$126bo45$219b2o$219bobo$219bo!

Relevant post:

Code: Select all

x = 41, y = 71, rule = B3/S23
5$8bobo$9b2o$9bo30$34bobo$35b2o$35bo2$35b2o$34bobo$36bo23$13b2o$12bob
o$14bo!

[…]

[Gustone]

None of these are crawlers. Actually, no pattern on this last page is.

[MDA]

[…]

None of these are crawlers. […]

Could you explain why? For example, in my opinion, the (23,1)c/54 object posted by me is a crawler, because:

It consists of two groups of objects:

- The B-heptaplet

- The block and two gliders

which react between themselves to produce

- Another B-heptaplet

- Another block and two other gliders,

shifted back to some degree. (from the wiki)

So the (23,1)c/54 pattern posted above is a crawler. More generally, people use the word crawler to refer to any pattern which reacts with an object to reappear, shifted, alongside the original object, either temporarily or permanently. According to this definition, all (or almost all) patterns posted in this thread are crawlers.

Could you please explain why you disagree?

[Gustone]

why?

You can't daisy chain them.

[MDA]

[…]

You can't daisy chain them.

The wiki has precisely zero matches for the word “daisy”, let alone “daisy chain”. So I’ll just assume you mean that since there are gliders in the crawler, you can’t just extend the crawler by placing the gliders with the same relative shift to the B-heptaplet. Correct me if I’m wrong.

So, by your definition, any similarly-reacting pattern would be classified as a climber, not a crawler? Please clarify. Note that the wiki page on the subject states that

A crawler or climber is a reaction […].

In any case though, it would be better for you to use preexisting terminology or, if no such terminology exists, explain what you mean before using new or unofficially documented Life-related terms. (excluding your post, “daisy chain” only has 5 matches on the forums, and none on the wiki, as previously mentioned.)