Crawlers

For discussion of specific patterns or specific families of patterns in Conway's Game of Life, both newly-discovered and well-known.
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Gustone
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Re: Crawlers

Post by Gustone »

MDA wrote: August 6th, 2026, 3:49 amThe wiki has precisely zero matches for the word “daisy”, let alone “daisy chain”
"daisy chain" is an expression that means attaching copies of a thing by their ends, front of one to back of another.
So, by your definition, any similarly-reacting pattern would be classified as a climber, not a crawler? Please clarify.
No, it would just be a fuse.
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I6_I6
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Re: Crawlers

Post by I6_I6 »

MDA wrote: August 6th, 2026, 3:34 am
Gustone wrote: August 6th, 2026, 3:21 am
[…]

None of these are crawlers. […]
[...]

shifted back to some degree. (from the wiki)

Henceforth, the (23,1)c/54 pattern posted above is a crawler. [...]
Well, for some of the patterns you posted, the gliders aren't only shifted; they're rotated and face a different direction, or the offset for each glider isn't the same. As Gustone said, you can't chain them together without adding extra supporting objects, so it doesn't count as a crawler. If you found a way to make them chainable, then it'd be a crawler, but it isn't one just yet.

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#C [[ THEME Golly ]]
x = 27, y = 15, rule = LifeHistory
8.A$A6.A.A$3A4.BA2B.B2D$3.A4.2B.2B2DB$2.2A2.3B.6B2.3B$2.20B$4.19B$4.2B
C10BD4B$4.2B2C10BD4B$4.B2C11B2D3B$4.13B2D4B$5.12BD3B.B2A$6.13B3.BA.A$
6.3B.B3.B10.A$25.2A!
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MDA
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Re: Crawlers

Post by MDA »

I6_I6 wrote: August 6th, 2026, 4:05 am
MDA wrote: August 6th, 2026, 3:34 am
Gustone wrote: August 6th, 2026, 3:21 am
[…]

None of these are crawlers. […]
[...]

shifted back to some degree. (from the wiki)

Henceforth, the (23,1)c/54 pattern posted above is a crawler. [...]
Well, for some of the patterns you posted, the gliders aren't only shifted; they're rotated and face a different direction, or the offset for each glider isn't the same. As Gustone said, you can't chain them together without adding extra supporting objects, so it doesn't count as a crawler. If you found a way to make them chainable, then it'd be a crawler, but it isn't one just yet.
Gustone wrote: August 6th, 2026, 3:57 am
MDA wrote: August 6th, 2026, 3:49 amThe wiki has precisely zero matches for the word “daisy”, let alone “daisy chain”
"daisy chain" is an expression that means attaching copies of a thing by their ends, front of one to back of another.
So, by your definition, any similarly-reacting pattern would be classified as a climber, not a crawler? Please clarify.
No, it would just be a fuse.
Now I understand. Why does the wiki mention nothing about this?
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GlidINT has been released!

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x = 5, y = 17, rule = B3-ry4acenqt5eir6-ek/S2-a3-a4nq5aeknr6-akHistory
C$2C$.2C$2C11$.3D$3.D$2.3D!
[[ STOP 72 ]]
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yyh_baboon
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Re: Crawlers

Post by yyh_baboon »

I guess it’s just because not a lot of people are really investigating in crawlers. They may make good spaceships, but they are pretty rare.
If you want to construct some spaceships in Life, here’s something that may interest you:
Last edited by yyh_baboon on August 6th, 2026, 4:36 am, edited 1 time in total.
Definitely not spam
Wondering when the P38 gun will be constructed.
Currently hand-searching spaceships.ÔvÔ

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 x = 4, y = 4, rule = B3aeiq4tz5j6i7e8/S2-ci3-aeky4cei5ain6acin78
3o$o2bo$3bo$b3o!
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Gustone
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Re: Crawlers

Post by Gustone »

MDA wrote: August 6th, 2026, 4:24 amWhy does the wiki mention nothing about this?
The wiki says that in the reaction, both groups of objects need to be "moved". This means that they reappear exactly as they were but in a different location.
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.
Here, the group of block and two gliders would need to reappear exactly as it was before the reaction.
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Entity Valkyrie 2
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Re: Crawlers

Post by Entity Valkyrie 2 »

MDA wrote: August 6th, 2026, 3:49 am
Gustone wrote: August 6th, 2026, 3:37 am
[…]

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
Muzik wrote: 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.)
I think what Gustone is trying to say is that the output of the climber reaction alone can't support the same reaction, i.e. one copy of the reaction can't be immediately followed by a second copy of the same reaction. But if that was the case, then none of these would qualify as crawlers either (even though spaceships have been built for all three of these):

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x = 181, y = 163, rule = B3/S23
128b2o$128b2o3$116b2o$116b2o3$104b2o$104b2o3$92b2o$92b2o3$80b2o$80b2o
3$68b2o$68b2o3$56b2o$56b2o3$44b2o$44b2o3$32b2o$32b2o3$20b2o$20b2o3$8b
2o$8b2o6$2b3o$bo2bo$o2bo$b2o26$157b2o$157b2o6$123b2o$123b2o6$89b2o$89b
2o6$55b2o$55b2o5$o$obo18b2o$3o18b2o$2bo47$24b2o29b2o29b2o29b2o29b2o29b
2o$24b2o29b2o29b2o29b2o29b2o29b2o5$o$obo$3o$2bo!
Bx222 IS MY WORST ENEMY.

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NNlk05
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Re: Crawlers

Post by NNlk05 »

Entity Valkyrie 2 wrote: August 8th, 2026, 12:55 am *snip*
spaceships have been built for all three of these
*snip*
Which ones? I don't recognize any of these.
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x = 10, y = 3, rule = B34twz/S23
b2o4b2o$obo4bobo$2bo4bo!
[[ AUTOSTART AUTOHIDEGUI TRACK 0 -47/270 ZOOM 4 GPS 45 STEP 3 THEME BOOK ]]
https://nnlk05.github.io

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MDA
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Re: Crawlers

Post by MDA »

NNlk05 wrote: August 8th, 2026, 2:20 am
Entity Valkyrie 2 wrote: August 8th, 2026, 12:55 am *snip*
spaceships have been built for all three of these
*snip*
Which ones? I don't recognize any of these.
Top crawler: Solifuge ((12,4)c/62)

Middle crawler: Unnamed/Much smaller (34,7)c/156 spaceship ((34,7)c/156)

Bottom crawler: Shield bug, Centipede, Silverfish, Leaf bug, Mannaz, … (31c/240)
My website (a database of Life objects, WIP).
GlidINT has been released!

Code: Select all

x = 5, y = 17, rule = B3-ry4acenqt5eir6-ek/S2-a3-a4nq5aeknr6-akHistory
C$2C$.2C$2C11$.3D$3.D$2.3D!
[[ STOP 72 ]]
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Gustone
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Re: Crawlers

Post by Gustone »

Entity Valkyrie 2 wrote: August 8th, 2026, 12:55 amif that was the case, then none of these would qualify as crawlers either (even though spaceships have been built for all three of these)
Yes, those aren't crawlers. Their paired versions are.
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