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WhiteHawk

The I-heptomino is a surprisingly active methuasleh in Pedestrian Life, lasting 1474 generations (over 300 more than the R in life) and producing more waste & more gliders than Life's R-pentomino

x = 5, y = 5, rule = B38/S23
2bo$bobo$o3bo$bo2bo$3b2o!

The sequence diverges in generation 162
x ...

WhiteHawk

Attempting to feed a second glider 26 generations after the first causes a collision:

The splitter can be overclocked if there's a eater

The Blocks
In Blogic, a block may act like a splitter for gliders with repeat time 27:
...

Only in theory, though. In actuality sparks get ...

WhiteHawk

Catagolue isn't updating new Guntrue submissions, as the old gun hasn't been replaced despite it being reduced 3 days ago.

Reduction to guntrue_996 (2856 -> 2814) - a potential replacement for the p6 thumb might reduce it

EDIT: Catagolue is also moving a little slowly right now too ...

WhiteHawk

Not to steal EV2's thunder (you can definitely steal this), but I was bored & went ahead and made a very dirty version of the 2026 stamp collection. Note it is definitely missing things and could be condensed quite a bit
x = 1431, y = 2954, rule = LifeHistory
12D16.2A4.2A21.A398.4D4.4D4.12D38.A5 ...

WhiteHawk

A few low-period oscillators I recently noticed on Catagolue, I think all but the p6 are outright SKOP, though the p6 is tied with unix

Here is a nearly statorless p9
x = 10, y = 10, rule = B3/S235e
5bo$3b3obo$3bo4bo$3bobo$o3bobob2o$o4bo2bo$o5b3o3$3b3o!

Also a low-clearance p7 thumb
x = 12, y ...

WhiteHawk

Blinker hassler, here as p32, p46, p64, and p92

x = 143, y = 53, rule = B3/S23
59bo66bo$13b2o65b2o$13b2obo40b3obo18b2obo40b3obo$17bo38bob2o24bo38bob
2o$14bo11bo20bo8b2obo21bo11bo20bo8b2obo$15bob2o5b3o20b3o4bob3o23bob2o
5b3o20b3o4bob3o$17b2o4bo26bo33b2o4bo26bo$23b2o24b2o5bo33b2o24b2o5bo2 ...

WhiteHawk

NNlk05 wrote: September 2nd, 2026, 1:57 pm
WhiteHawk wrote: September 2nd, 2026, 1:51 pm Failed loaf pushalong, can it be completed at a lower velocity?
Code: Select all
I think its 2c/14.

It's fastest would be 2c/12 (c/6)

WhiteHawk

Failed loaf pushalong, can it be completed at a lower velocity?

Code: Select all

x = 44, y = 14, rule = B3/S23
21b2o$20bo2bo$20bobo$16b3o2bo$7b3o15b3o$6b5o4bo2bo7bo7bob3o$3b2obo3bo
5bo16b2o2b3o$4bob2o4b6o9b2obob3o3b3o$2b2ob5o3bo12bo3b5o6bo$bo4bo5bo13b
o3bo3b2o3bo$o4bo32b2ob2o$4bo37bo$3o$42b2o!

WhiteHawk

this makes the pi heptomino rotate

you can chain the rotated pi heptomino tho
ehh too lazy to add the rle

See PT8P and Gourmet , which both feature a stable version also used in Tanner's p46 and several other pi-heptomino hasslers (there is a period-45 pi-heptomino hasslers which is a ...

WhiteHawk

Reduction to guntrue_996 (2856 -> 2814) - a potential replacement for the p6 thumb might reduce it
x = 67, y = 42, rule = B3/S23
62b2o$61bobo$41b2o18bo$41bo18b2o$42bo$41b2o17b4o$60bo2bo$28b2o32bo$28b
2o33b3o$55bo9bo$55b2o$7b2o32bo12bobo$7bobo30b2o11b3o9b2o$10bo2b2o26b2o
10b2o6b2obobo ...

WhiteHawk

Up to what value could all symmetric Still-lifes be enumerated, since they make up only a small fraction of still-lifes?

WhiteHawk

These are still lifes I discovered before I joined the forum. It also has no name in Catagolue. Am I the first discoverer?

The short answer is no - see LifeWiki:Object_counts

Long answer: As every still-life up to 34 cells has been tabulated & these have fewer cells, these are known ...

WhiteHawk

I call this instant death, Ninja star2 ;

Some of it's variants ;

I call this, gear.

Forum rule 3A: Do not post multiple messages consecutively in the same thread without a good reason. If you made the most recent post on a thread and you have something short to add on the same ...

WhiteHawk

atanisaduts wrote: September 2nd, 2026, 9:08 am I once found this oscillator accidentally
Code: Select all

See xp2_031a080a6z6501058c

EDIT: For an alien variant (B4c triggered), see xp2_03l0k0k26z642020ac

WhiteHawk

Bizarre catalyst discovered in B3/S238 soup

Code: Select all

x = 12, y = 6, rule = B3/S23
3bo6bo$b2obo4bobo$o4bo3bobo$o4bo4bo$o2bobo$bob2o!

WhiteHawk

Has anyone ever checked/categorized by multiplier on the possible stable reactions (EDIT: Barring agnostic ones like block creation/deletion) which result from the combinations which result from combining low-period glider streams of the same period. (Example is this p296 reaction)
x = 112, y = 54 ...

WhiteHawk

I think we should probably get on this soon, so we don't avoid a fiasco like last year where voting ended up coming in December

WhiteHawk

Code: Select all

#2 *****
#3 ***
#4 ***
#5 ****
#6 *
#9 ***
#10 *
#11 ****
#12 **
#13 ****
#14 *

WhiteHawk

I think xs32_4a9e0e9a4z259707952 needs a name.
I would call it the big boat fleet because it contains 4 components, and they can be seen as big versions of the boat

I don't think that name is consistent with current still-life naming conventions.

Firstly, since there are four of the objects ...

WhiteHawk

Some p16 interactions:

Block hassler
x = 7, y = 19, rule = B2k3aijkn4aek5ry6ak/S2ae3-iky4atw5r6ik8
3b2o$2b4o$b2o2b2o$bo4bo6$6bo$3b2o$3b2o4$2b2o$b4o$2o2b2o$o4bo!

EDIT: Variant with offset adjustability
x = 34, y = 15, rule = B2k3aijkn4aek5ry6ak/S2ae3-iky4atw5r6ik8
7b2o20b4o ...

WhiteHawk

Here is a quasi-stable (i.e. works at any timing despite containing an oscillator) F186, using the FNG of the output Herschel to clean up (repeat time 259). I almost got a second Herschel out (R333), but that Herschel has so little clearance and just immediately crashes into the block if not ...

WhiteHawk

In life, the left catalyst stays intact, but the right one fails.

x = 99, y = 18, rule = B3/S23
88bo$87b2o$bo86b2o$3o$2bo5$10b2ob2o$7bobob2obo79b2ob2o$6bob2o81bobob2o
bo$4b3o3bob2o76bob2o$3bo3b3o3bo74b3o3bob2o$4b3o3b3o74bo3b3o3bo$6bo2bo
78b3o3b3o$9b2o79bo2bo$93b2o!

Inserting that pattern into ...

WhiteHawk

p200 d.r.l partial:

I do think it's interesting how this known HF catalyst ends up successfully catalyzing an R-pentomino without getting destroyed. Anyone willing to catforce this & see if any new oscillators appear?

x = 15, y = 15, rule = B3/S23
bo$3o$2bo5$10b2ob2o$7bobob2obo$6bob2o ...

WhiteHawk

This p36 shuttle was completed previously, but here's something funny that happens when regular eaters are used
x = 22, y = 27, rule = B3/S23
6b2o$7bo2bo$4b3o3b3o$3bo3b3o3bo$3b2obo3b3o$7b2obo$2bob2obobo10b2o$2b2o
b2o13bo$18bobo$18b2o3$10b3o$9bo3bo$8bo5bo$8bo5bo$8bo5bo$2b2o5bo3bo$bo
bo6b3o ...

WhiteHawk

Hexathlon partial
x = 18, y = 3, rule = LifeHistory
3.A2.A4.A2.A$C3A2.6A2.3AC$3.A2.A4.A2.A!

Hexathlon partial
x = 18, y = 3, rule = LifeHistory
3.A2.A4.A2.A$C3A2.6A2.3AC$3.A2.A4.A2.A!

two p6 dot fountains (any of them in the sparker compilation) will work

Simple enough, but this is ...

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