Slo-Gro (B2ek3/S2-ek3)

[d/dx]

This is an erratic/explosive rule, but a slow one.
See this 20 x 20 soup:

Code: Select all

x = 20, y = 20, rule = B2ek3/S2-ek3
o13b3o$5b2ob3obo2bob2o$o5bo7bobob2o$o3bo2b3o2b2o3bobo$3bobobo3bo3b3o$b
2o2b2obob2obob2o2bo$o2bobo2b2obo2b4obo$3o2bo2b2ob5o3bo$bob3o4bobo3b2ob
o$bo4b2o3bo3bob2o$b3o4bo5bo2b3o$ob2o5bo4bob3o$2bo2bo2b4o3bo2bo$2bo2bob
2o5bo2bobo$b3o2bo4bo3b3o$o2b3o2bobo2bobo$2bob3obobo6b3o$7bob2ob3o$3obo
3b2ob2obo$4bob2o2b2o2b2obobo!

You can see it explodes, but grows slower than, say, Seeds (B2/S).

The same soup in Seeds for comparison:

Code: Select all

x = 20, y = 20, rule = B2/S
o13b3o$5b2ob3obo2bob2o$o5bo7bobob2o$o3bo2b3o2b2o3bobo$3bobobo3bo3b3o$b
2o2b2obob2obob2o2bo$o2bobo2b2obo2b4obo$3o2bo2b2ob5o3bo$bob3o4bobo3b2ob
o$bo4b2o3bo3bob2o$b3o4bo5bo2b3o$ob2o5bo4bob3o$2bo2bo2b4o3bo2bo$2bo2bob
2o5bo2bobo$b3o2bo4bo3b3o$o2b3o2bobo2bobo$2bob3obobo6b3o$7bob2ob3o$3obo
3b2ob2obo$4bob2o2b2o2b2obobo!

But here's the thing: small patterns don't explode here at all! Look at these patterns from Life:

Code: Select all

x = 27, y = 3, rule = B2ek3/S2-ek3
2bo5b3o5b3o6bo$b3o4bobo4bo3bo4b2o$2obo4bobo4b2ob2o5b2o!

The smallest explosive pattern I've found has 11 cells (can there be a smaller one?).

Code: Select all

x = 3, y = 6, rule = B2ek3/S2-ek3
bo$obo$b2o$b2o$obo$2o!

Oscillators:

Code: Select all

x = 31, y = 12, rule = B2ek3/S2-ek3
28bo$16b2o11b2o$o4bo10bobo3b2o3b2o$bo3b2o4b3o3b2o2bo2bo4bo5$bo5bobo$2o
5b2o$2b2o3b2o3b2o$2bo3bobo3b2o!

All the oscillators at the top are p2. Surprisingly, there's no small still lifes other than the block.

Share your finds!

[confocaloid]

I'm currently skeptical about this CA rule. Most soups grow, making apgsearch useless. I did not find any small common gliders.

Most CA rules do not need their own threads. Before creating a new thread, consider posting either in TFYUCA thread or MDiOCA thread, to see whether there are replies from others.

The smallest explosive pattern I've found has 11 cells (can there be a smaller one?).

Code: Select all

x = 3, y = 6, rule = B2ek3/S2-ek3
bo$obo$b2o$b2o$obo$2o!

6 bits:

Code: Select all

x = 4, y = 4, rule = B2ek3/S2-ek3
2o$2bo$2b2o$2bo!

Share your finds! :mrgreen:

p4 orthogonal c/2 spaceship found using qfind 2.3:

Code: Select all

x = 7, y = 13, rule = B2ek3/S2-ek3
2b3o$2b3o$3bo2$2bobo$obobobo$obobobo2$2bobo$o2bo2bo$o2bo2bo$3bo
$b2ob2o!

[d/dx]

I searched the entire OCA forum and there were no mentions of this rule, so I made a new thread. I think that makes sense.

p4 oscillator:

Code: Select all

x = 4, y = 4, rule = B2ek3/S2-ek3
bo$b3o$b2o$obo!

7 cell exploder:

Code: Select all

x = 4, y = 4, rule = B2ek3/S2-ek3
2bo$2b2o$2o$2o!

[confocaloid]

I searched the entire OCA forum and there were no mentions of this rule, so I made a new thread. I think that makes sense.

It does not make sense to create a new forum thread for every CA rule, because there are too many of them. Even restricting to Life-like cellular automata (which this rule is not), there are 2^18 = 262144 of them. Can you imagine having that many forum threads? Would that be useful?

Before/instead of creating a new thread, please post in an existing thread (TFYUCA/MDiOCA) to see whether other people consider the rule interesting enough. If there are replies from others / new discoveries, then maybe it makes sense to create a dedicated thread. If nobody replies, most likely a new thread is not needed.

[unname4798]

5 cell explosion:

Code: Select all

x = 3, y = 4, rule = B2ek3/S2-ek3
bo$o$b2o$bo!

404 posts

[b-engine]

I don't classify the SloGro explosions as "slow", since DryLife explosions are slower:

Code: Select all

x = 0, y = 0, rule = B37/S23
!
[[ RANDOMIZE ]]

Compared to B2ek3/S2-ek3 explosions:

Code: Select all

x = 0, y = 0, rule = B2ek3/S2-ek3
!
[[ RANDOMIZE ]]

Even if they're slower than Seeds explosions:

Code: Select all

x = 0, y = 0, rule = B2/S
!
[[ RANDOMIZE ]]

-

P4:

Code: Select all

x = 4, y = 4, rule = B2ek3/S2-ek3
b2o$3bo$o$b2o!

Can any mod merge this thread to Unrecognized CA thread, please?

[iddi01]

I think the name "Slo-Gro" befits this much better (though i was planning to call it "CityBuilder"):

Code: Select all

x = 31, y = 9, rule = B35i/S23-acny4eijkrw5-aeij6-a7
5bo$5bo$3b5o19b4o$3o2bo22bobo$obo2bo22b3o$3o2bo$5bo$5bo$5bo!

Also, instead of merging into Misc. discoveries or Unrec. CA, i think this could be turned into a generalized thread for very slowly growing explosive rules.
(As in the opposite of this thread)

This is already the third time i suggested to turn a thread into a generalized one, but my previous two suggestions got ignored completely.

edit: Yes, the suggestion got ignored completely this time as well...

[d/dx]

P4:

Code: Select all

x = 4, y = 4, rule = B2ek3/S2-ek3
b2o$3bo$o$b2o!

This was discovered earlier by me. (see top post)

[Mathemagician314]

5 cell explosion:

Code: Select all

x = 3, y = 4, rule = B2ek3/S2-ek3
bo$o$b2o$bo!

404 posts

Another 5-cell explosion:

Code: Select all

x = 4, y = 3, rule = B2ek3/S2-ek3
bo$obo$o2bo!

[b-engine]

4-cell explosion:

Code: Select all

x = 4, y = 4, rule = B2ek3/S2-ek3
bo$obo2$3bo!

EDIT:
Mini toad:

Code: Select all

x = 4, y = 3, rule = B2ek3/S2-ek3
bo$o2bo$2bo!

[unname4798]

My candidate is slower:

Code: Select all

x = 64, y = 64, rule = B3ai45678/S4678
2b3ob2obo2b3obob3ob2o6bo2bo4bobo3b2obobob2obob2obobobo$5bo4b5o2bo3bob
ob8o2bo2bo3b3ob3o3b2obobob2o$bo2b2o2bob2o6bo3bo3b4ob2o2bobob2o2bob3o2b
2obob2o3b2o$2bo4bob4o2bo2bo2bo4bo3bobo3b2o2bo3bobob2o4bo2bobobobo$o2b
3ob2ob3obobo3bo3bobob5ob2ob2o2bobo2bobob2o6bob3o$b2o3bob2obobobo3b6ob
2ob6o3b3obobobo2bo2bobo4bobo$o3bo2b2obobo3bo2b3o2bobob3o2bob5o2bo5bo2b
4ob2o5bo$o2bob2ob3ob2obo2b2o2b2o4b2obobo4b4o3bobo5b4o2b3obo$bo3b2ob3o
bo5b3ob2o2b3o2bo3b3ob2obo2b2o2b2ob3o2bo2bo2bo$o3bobo3b2ob4o6b3o2b2o3b
ob2o3b3o2bobo2b4ob2obobo$b3o2bob3obobo6bob4ob2o2bo4bobo4b5o5bobob2o$3b
2o2b2o2b2obob2o3bob3obo2b2o2bo3bo2bobo3b2ob3obo2bo2b3o$b7obob2o2bo6b2o
6b5ob2obob2obob3obobo2bo2b2o$5obob4o2bobo2b2o2bobob2ob3o3bo2b2o2b3ob3o
2bob3obo2bobo$b5o3bob2o3bobo2bo2bo2b2obo3bob3o4bobo2b6o4b2ob2o$b2o2b2o
2b2o5bobo2bob3ob2o2bo2b4obob3obobob5ob5o$5ob4ob4obo2b3ob3obo2bo4bobob
o2bo3b2obo3bobobobo2b2o$bo4b2obo3b5o2b4obo2b2obo2b3o2b2obo2bob3o6b2o3b
3o$3ob3ob2o3b2o4b2obo3b3o4b4ob2obo3b2o3bo2b2obo2bo2bo$2obobo3b3obo2b3o
2b4o4b2o3bo2bob2obob2ob2obobob2ob3ob2o$2b4o2b2o2bo2bob2o2bobob7ob3o5b
o2bob8o3b2ob3o$2b2o3bobo2b2o2b2o3bobo3b3ob2o3b5o3bo3bob3o2bob2o$o2bo3b
ob2o3bo2bob3obo3bob2o5b2o2b3obob2o4bo4b3obo$2o2bo2b4o2b3o3b7ob3ob2o2b
2obo3bob4o2bobo2b2obo$ob4ob2o2bo5b2o2b4o2bo2bo5bob2o3b2obo2bo2b3o3b2o
b3o$2bob2o2b2o2b3obob2ob3o3bob3ob4obob2o5b3o2bob4ob2ob2o$b2obobo2b3ob
2o2b4o2b3ob2ob2o3b2ob3o3bo2bob2obobo3bo2bobo$3obob2obobo7b2obo4b8obo7b
2obo2b2ob2o5b3o$2ob3o3bobo2bob2obob2ob6obobobobobo2bo3b2o2bo4b3o$2o2b
o4b3obobo2bobo3b4obo3b2ob3ob2ob2o2b5ob2obob3obo$bobo3bob3o3bobo2bob3o
5bobobobo2bo4b3o4b2o2bo3b2o$b4ob2o4b2ob2o6b2obobo2bo4b2obob3o2b3obobo
2bob3ob2o$ob3o2b5ob2o6bobobo3bobob2ob2obo2bob2ob4o3bo4bo3bo$b3o2b6obo
b3obob3o2bo2b2o4bo4b2obob3o4b4ob2o3b2o$b4o2bo3b2o4bobobob3o3b4ob2o3bo
b2ob5ob5ob3obo2bo$o3bo2b9o2b4o2bobob2ob4ob3ob2obob2o2bo4bo3bo2bobo$b4o
2b2o2bob4ob3o2b2o4bob3ob2ob2o3bob3ob2obo2b4obo2bo$4b2ob4ob2ob3obobo6b
3obobo2b2o2bo2b2o2b2obo3b2ob2o2b2o$b2obo2b2o2b3ob2o2b3ob2obo7b3obob2o
2b2o2b2o2b3obo2bobo$4bobo3b2ob2o3bobo2b4obo3bobob2o2b2o2b2o2b3o6bob3o
bo$b2o2b3o2bob3o2bob4obob5ob2o2b2ob4o3b3o2b2o2bobobob3o$bo3bobo2bo2b4o
3b3obob2ob3obob2ob2obob4o4b3obo5b3o$bo2bo3bo4b4o3b2o2b4o2bobo2b2o2b3o
4b4ob2o3b3o2bo$ob4o4bobob6o2bo4bo2b6ob6o2bob4obo2b4o3b2o$b4o7bo4b2o6b
4o3b2ob2o2bo2b2o2b6o2b2ob2o2b2o$obob2o3bobobobo3bo2b2ob2o2bobo6b3o2b2o
bo3b2o2bo4b3obo$b3o5b2obo3b2obo3b2o3b10obobo4bo2b2o4bo4b3o$4b3o4bo2bo
3bob2obob3obobobob2ob3ob2obo2bob2o2bo4b3obo$obobo2b8o3bob2o2b4o2bobob
4obob2obo2b2ob2obo2b2obobobo$2o3bob2o2bobobobo3b2ob2ob2ob3ob3o12bobo7b
ob3o$o5b2o3bo3bobob5o3bo3bo5b4ob3ob2o3bo2b7o2bo$o4bo2bobo2bob10ob2ob2o
2b2ob2o2b3o2bo2b4o6b5o$2bob4o2b2o3bob2obo3b5o3bob2o2bobobob3o3b2ob3o2b
4o$o5bo3b3o2b2o2bob3obob3o2b2o2bo2bobobob2ob2obobob2obo4bo$2b2o2bob2o
2bo4bo4b2o2b2ob3o2b3obo2b6ob2o4b2obob5o$2bob3obo3bo7bo2bo2bo4b3o3bo2b
ob4ob6o2b5o2bo$bo2bobob2obo3b2ob2ob3ob2o4b2o2b4o4bo3bobob7obob3o$4b3o
2b4o4b2o3b2ob4o2b2o8b2o2bo3bobob2ob2o3b2o$3bobo4bob3o3b5o3b2o2b2obob2o
b8o3bo2b2ob3obob2o$3ob2obo2bobobo4b2ob2ob2obo2bobob2obo2bo6b3o3b3o3bo
b2o$b4ob2o2bobob3o2bobob2ob3o2b2o6b2o2bobo2b2o4bo5b3o$2ob3o2bo3bo2b2o
b2o2bo3bobob4o2bobo2b3obo2b4o5bobobobo$2obo5b2o5b2ob3ob7o4bo2b5obobo4b
o3b2obo4b2o$4o3b2o2bobob2o2bob2o2bob2obo3bob3obobobo2b2ob4o4bo2b3o!
[[ RANDOMIZE ]]