Thread For Your Useless Discoveries

[Tawal]

Useless clean H to Eater1

Code: Select all

x = 53, y = 41, rule = LifeHistory
12.2A$11.B2AB5.2A$12.3B5.A$13.B3.BA.A$9.7B.B2A$8.10B$8.7B2EB$8.6BE2BE
$6.2AB.5B2EB$5.A.AB.8B$5.A4.8B3.2B$4.2A5.12B$11.14B10.A$11.15B8.A.A$
9.18B6.2BAB$7.21B6.2B$7.2BC19B3.4B$6.3BCBC17B3.5B.B$7.2B3C17B3.9B2.2B
6.2A$6.5BC29B.4B5.A$5.10B.30B2.BA.A$4.4B9.32B2A$4.3B10.33B$2.4B12.31B
$2.2A14.30B$3.A16.26B$3A17.22B.B$A19.19B.B.3B$19.21B2.B2AB$19.6B2.12B
4.2A$20.4B4.4B2D5B$20.4B4.5BD4B$28.5BDBD$28.6B2D$28.2A3.2B$29.A4.2B$
26.3A4.B2A$26.A7.A.A$32.A.A.3A$32.2A5.A$38.2A!

May be the Eater1 synthesis could be interesting … I don't really know about that.

[WhiteHawk]

Useless clean H to Eater1

Code: Select all

H-to-Teardrop if eater-bridge-eater is removed

Code: Select all

x = 53, y = 41, rule = LifeHistory
12.2A$11.B2AB5.2A$12.3B5.A$13.B3.BA.A$9.7B.B2A$8.10B$8.7B2EB$8.6BE2BE
$6.2AB.5B2EB$5.A.AB.8B$5.A4.8B3.2B$4.2A5.12B$11.14B10.A$11.15B8.A.A$9.
18B6.2BAB$7.21B6.2B$7.2BC19B3.4B$6.3BCBC17B3.5B.B$7.2B3C17B3.9B2.2B6.
2A$6.5BC29B.4B5.A$5.10B.30B2.BA.A$4.4B9.32B2A$4.3B10.33B$2.4B12.31B$2.
2A14.30B$3.A16.26B$3A17.22B.B$A19.19B.B.3B$19.21B2.B2AB$19.6B2.12B4.2A
$20.4B4.11B$20.4B4.10B$28.9B$28.6B2DB$28.2A2.BD2BD$29.A3.D2BD$26.3A5.
3D$26.A3$38.B!

EDIT: Dirty H-to-G without additional eater

Code: Select all

x = 53, y = 40, rule = LifeHistory
12.2A$11.B2AB5.2A$12.3B5.A$13.B3.BA.A$9.7B.B2A$8.10B$8.7B2EB$8.6BE2BE
$6.2AB.5B2EB$5.A.AB.8B$5.A4.8B3.2B$4.2A5.12B$11.14B10.A$11.15B8.A.A$9.
18B6.2BAB$7.21B6.2B$7.2BC19B3.4B$6.3BCBC17B3.5B.B$7.2B3C17B3.9B2.2B6.
2A$6.5BC29B.4B5.A$5.10B.30B2.BA.A$4.4B9.32B2A$4.3B10.33B$2.4B12.31B$2.
2A14.30B$3.A16.14B2D10B$3A17.10BD2BDBD6B.B$A19.10BD3BD4B.B.3B$19.11BD
9B2.B2AB$19.6B2.12B4.2A$20.4B4.11B$20.4B4.11B$28.11B$28.11B$30.9B$32.
BD4B$31.2D5B$32.2D3B$33.4B$35.B!

[Tawal]

[…]
H-to-Teardrop if eater-bridge-eater is removed
[…]

Yes, but I haven't found anything to get out of it apart from this Eater1.

[get_Snacked]

just found this reaction that pulls a krake and puffs out two boats:

Code: Select all

x = 28, y = 10, rule = B3/S23
13b2o$12bo2bo$2o3b2o8bo5b2o3b2o$obobobo7bo6bobobobo$2bobo8bo9bobo$2bo
bo8bo9bobo$3bo18bo3bo$13bo8bobobo$22bo3bo$23b3o!

it's useless for now until we find something that can perturb the krake like that. afterwards, it might be possible to find a c/n or 5c/n krakepuller.

[Game of Life Fun]

Pseudo p6 block puffer:

Code: Select all

x = 33, y = 55, rule = B3/S23
13bo$12b3o$4bo6bo2b2o$3b3o5bo3bo$3bob2o6bobo4b3o$4b3o3bob3o4bo2bo$4b3o
4bo10bo$4b2o12bo3bo$18bo3bo$8b3o11bo$19bobo$14b2o3$15bo5b3o5b3o$8b3o3b
3o4bo2bo4bo2bo$14bob2o2bo3bo4bo$15b3o2bobob2o3bo$15b2o4bob3o4bobo3$8b
3o$20bo$19bobobo$19b4o3$8b3o5$18bobo$8b3o7b2o$19bo5$8b3o2$15bobo$15b2o
$16bo2$8b3o3$2b3o$bo2bo$4bo7bobo$o3bo4b2ob2o$o3bo3bo4bo$4bo$bobo!

Edit:

Better BB:

Code: Select all

x = 26, y = 56, rule = B3/S23
12bo$11b3o$3bo6b2o2bo$2b3o5bo3bo$b2obo4bo2b2o5b3o$b3o6bo8bo2bo$b3o15bo
$2b2o15bo3bo$7b3o9bo3bo$19bo$20bo4$7b3o2b3o3b3o$11bo2bo3bo2bo$14bo3bo$
14bo3bo$13bo5bo2$7b3o5b3o$15b3o5b3o$15b3o4bo2bo$25bo$25bo$15b3o7bo$7b
3o5b3o7bo$24bo2$17bo$13b2obo$13b2ob2o$7b3o7bo$23bo$22b3o$22bob2o$23b3o
$23b3o$7b3o13b3o$23b2o10$b3o$o2bo$3bo$3bo$3bo$3bo$2bo!

[hth3]

"Natural" cis-boat on fishhook:

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x = 13, y = 35, rule = B3/S23
3o$obo$obo7$10b3o$10bo$11bo21$3b3o$5bo$4bo!

[confocaloid]

I would avoid calling that "natural", because the initial configuration is clearly "engineered" to make it work. Move the glider at the bottom two cells up or down, and it will not work.

It would become a natural way for xs12_178c0ca4 to form, if and when some soup happened to evolve into that particular reaction.

Natural cis-boat on fishhook:

Code: Select all

x = 13, y = 35, rule = B3/S23
3o$obo$obo7$10b3o$10bo$11bo21$3b3o$5bo$4bo!

[hotcrystal0]

A boat can eat two gliders in a very specific way:

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x = 17, y = 22, rule = B3/S23
10bobo$10b2o$11bo10$bo$obo$b2o5$14b2o$14bobo$14bo!

[jeremydover]

A partial p108 dove hassler:

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x = 43, y = 36, rule = B3/S23
7b2o$8bo$8bobo$9b2o6$4b2o$5bo$5bobo30bo$6b2o29bobo$16b2o19bobo$16bobo
17b2ob3o$16bo2bo22bo$17bobo16b2ob3o$18bo17b2obo$3bob2o17bo$b3ob2o16bob
o$o22bo2bo$b3ob2o17bobo$3bobo19b2o$3bobo29b2o$4bo30bobo$37bo$37b2o6$
32b2o$32bobo$34bo$34b2o!

I can't think of a way to get rid of the extra junk at period 108, but in case someone else has an idea...

[confocaloid]

A boat can eat two gliders in a very specific way: [...]

... which otherwise would collide to produce a pi-heptomino. I think this is one of more likely ways for this reaction to be somehow useful:

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x = 42, y = 27, rule = DoubleB3S23
40.C$39.C$39.3C2$C17.C$.2C14.C.C$2C14.C.C2.C$14.3C2.2C.C$13.C3.2C3.C
2.2C$14.3C2.3C3.2C$16.C.C$17.C.C$18.C12$23.2A$22.A.A$23.A!

[jeremydover]

Testing out some oscillator reduction code, found two variants of double caterer. The one on the left has one less row, providing a bit more clearance for the sparks. The one at right has one fewer column. Both have population one less than the original double caterer. Maybe not new, probably not useful.

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x = 38, y = 12, rule = B3/S23
5b2o3b2o12bo2b2o$4bo2bo2bobo10bobo2bo3bo$4b2obo5bo10b2obo3bobo$6bob4ob
o12bob4obo$2b3obobo3bob2o6b3obobo3bob2o$bo2bo2bo3bo2bobo4bo2bo2bo3bo2b
obo$obo2bo3bob2o4bo2bobo2bo3bob2o4bo$bo10b2ob3o3bo10b2ob3o$2b2ob2ob2o
3bo8b2ob2ob2o3bo$3bo3bo5bob2obo4bo3bo5bob3o$3bo3bo6b2ob2o4bo3bo6bo2bo$
35b2o!

[bean]

Code: Select all

10b2ob2o$10bo3bo$11b3o2$11b3o$10bo3bo$10bo3bo$7b2obo3bob2o$7b2obo3bob
2o$10bo3bo$2o3b5o5b5o3b2o$obobo15bobobo$2bobo15bobo$obobo15bobobo$2o3b
5o5b5o3b2o$10bo3bo$7b2obo3bob2o$7b2obo3bob2o$10bo3bo$10bo3bo$11b3o2$11b
3o$10bo3bo$10b2ob2o!

length five exoskeleton

[Timelord Missionary]

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10b2ob2o$10bo3bo$11b3o2$11b3o$10bo3bo$10bo3bo$7b2obo3bob2o$7b2obo3bob
2o$10bo3bo$2o3b5o5b5o3b2o$obobo15bobobo$2bobo15bobo$obobo15bobobo$2o3b
5o5b5o3b2o$10bo3bo$7b2obo3bob2o$7b2obo3bob2o$10bo3bo$10bo3bo$11b3o2$11b
3o$10bo3bo$10b2ob2o!

length five exoskeleton

Would that make these length five arthropods?

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x = 66, y = 32, rule = B3/S23
4$13b2ob2o$13bo3bo27b2ob2o$14b3o28bo3bo$46b3o$14b3o$13bo3bo28b3o$13b2o
2bo27bo3bo$10b2obo2b2ob2o24b2o2bo$10b2obo3bob2o21b2obo2b2ob2o$13bobob
o24b2obo3bob2o$3b2o3b5obobob5o3b2o17b2o2bo$3bobobo3bo2bo2bo3bobobobo7b
2o3b5o2bob6o3b2o$5bob2o4b2o3bo4bobo9bobobobo2bo2bo4bo2bobobo$3bobobo2b
o4b3o3bobobobo9bobo5b2ob2o5bobo$3b2o3b6obo2b5o3b2o7bobobo2bo4bo2bo2bo
bobobo$13bo2b2o17b2o3b6obo2b5o3b2o$10b2obo3bob2o24bo2b2o$10b2ob2o2bob
2o21b2obo3bob2o$13bo2b2o24b2ob2o2bob2o$13bo3bo27bo2b2o$14b3o28bo3bo$46b
3o$14b3o$13bo3bo28b3o$13b2ob2o27bo3bo$45b2ob2o!

[LWSSONHWSSONLWSS]

LCM oscillator: 120P7 on queen bee shuttle
Is this known?

Code: Select all

x = 44, y = 24, rule = B3/S23
32bo$32bobo$21b2o12b2o$5b2o2bobo2b2o5b2o12b2o3b3o$5bobobobobobo19b2o4b
3o$4bo2bobobobo2bo15bobo$5b2obo3bob2o16bo5bo$2bo3bo7bo3bo18bobo$2obo13b
ob2o16b2o$o2b2o2bo5bo2b2o2bo$b2o3bobo3bobo3b2o$3bo3bo5bo3bo$3o15b3o2$
3o15b3o$3bo3bo5bo3bo$b2o3bobo3bobo3b2o$o2b2o2bo5bo2b2o2bo$2obo13bob2o
$2bo3bo7bo3bo$5b2obo3bob2o$4bo2bobobobo2bo$5bobobobobobo$5b2o2bobo2b2o
!

[confocaloid]

LCM oscillator: 120P7 on queen bee shuttle
Is this known?

Code: Select all

x = 44, y = 24, rule = B3/S23

"Least common multiple" oscillators typically get notability due to being smallest(*) known oscillators of a given period, at least at some point in history (see for example Mold on fire-spitting).
The p210 oscillator you posted is a 146P210 (minimum population 146, period 210). There's already a known 46P210: https://catagolue.hatsya.com/object/xp2 ... 1y33/b3s23 which means your oscillator doesn't set or tie for a record.

(*): "smallest", measuring by the minimum population.

[bean]

Code: Select all

11b2ob2o$11bo3bo$12b3o2$12b3o$5b2ob2obo3bob2ob2o$5b2ob2obo3bob2ob2o$11b
o3bo$5b2ob2obo3bob2ob2o$5b2ob2obo3bob2ob2o$11bo3bo$2o3b6o5b6o3b2o$obo
bo17bobobo$2bobo17bobo$obobo17bobobo$2o3b6o5b6o3b2o$11bo3bo$5b2ob2obo
3bob2ob2o$5b2ob2obo3bob2ob2o$11bo3bo$5b2ob2obo3bob2ob2o$5b2ob2obo3bob
2ob2o$12b3o2$12b3o$11bo3bo$11b2ob2o!

length six exoskeleton

Code: Select all

12b2ob2o$12bo3bo$13b3o2$13b3o$9b2obo3bob2o$9b2obo3bob2o$12bo3bo$12bo3b
o$5b2o2b2obo3bob2o2b2o$5b2o2b2obo3bob2o2b2o$12bo3bo$2o3b7o5b7o3b2o$ob
obo19bobobo$2bobo19bobo$obobo19bobobo$2o3b7o5b7o3b2o$12bo3bo$5b2o2b2o
bo3bob2o2b2o$5b2o2b2obo3bob2o2b2o$12bo3bo$12bo3bo$9b2obo3bob2o$9b2obo
3bob2o$13b3o2$13b3o$12bo3bo$12b2ob2o!

length seven exoskeleton

[LuveelVoom]

Code: Select all

12b2ob2o$12bo3bo$13b3o2$13b3o$9b2obo3bob2o$9b2obo3bob2o$12bo3bo$12bo3b
o$5b2o2b2obo3bob2o2b2o$5b2o2b2obo3bob2o2b2o$12bo3bo$2o3b7o5b7o3b2o$ob
obo19bobobo$2bobo19bobo$obobo19bobobo$2o3b7o5b7o3b2o$12bo3bo$5b2o2b2o
bo3bob2o2b2o$5b2o2b2obo3bob2o2b2o$12bo3bo$12bo3bo$9b2obo3bob2o$9b2obo
3bob2o$13b3o2$13b3o$12bo3bo$12b2ob2o!

length seven exoskeleton

Length 7 arthropod:

Code: Select all

 x = 29, y = 29, rule = B3/S23
12b2ob2o$12bo3bo$13b3o2$13b3o$9b2obo3bob2o$9b2ob2ob2ob2o$12bo3bo$12bo
3bo$5b2o2b2ob2ob2ob2o2b2o$5b2o2b2obo3bob2o2b2o$12bo3bo$2o3b7o5b7o3b2o
$obobobo2bo9bo2bobobobo$2bobo19bobo$obobobo2bo9bo2bobobobo$2o3b7o5b7o
3b2o$12bo3bo$5b2o2b2obo3bob2o2b2o$5b2o2b2ob2ob2ob2o2b2o$12bo3bo$12bo3b
o$9b2ob2ob2ob2o$9b2obo3bob2o$13b3o2$13b3o$12bo3bo$12b2ob2o!

I believe this solves all arthropods of length 4+3n.

[Timelord Missionary]

Length 1, 2, and 3 arthropods:

Code: Select all

x = 45, y = 69, rule = B3/S23
7b2ob2o$7bo3bo$8b3o2$8b3o$7bobobo$b2o3bo5bo3b2o$bobobo7bobobo$3bob2o5b
2obo$bobobo7bobobo$b2o3bo5bo3b2o$7bobobo$8b3o2$8b3o$7bo3bo$7b2ob2o9$8b
2ob2o$8bo3bo20b2ob2o$9b3o21bo3bo$34b3o$9b3o$8bobobo21b3o$8bo3bo20bo3b
o$b2o3b3o3b3o3b2o13b2o2bo$bobobo9bobobo6b2o3b2o5b2o3b2o$3bob2o7b2obo8b
obobobo7bobobo$bobobo9bobobo8bobo9bobo$b2o3b3o3b3o3b2o6bobobo7bobobob
o$8bo3bo13b2o3b2o5b2o3b2o$8bobobo20bo2b2o$9b3o21bo3bo$34b3o$9b3o$8bo3b
o21b3o$8b2ob2o20bo3bo$33b2ob2o4$8b2ob2o$8bo3bo$9b3o2$9b3o$5b2obobobob
2o$5b2obo3bob2o$8bo2b2o$2o3b3o5b3o3b2o$obobo8bo2bobobo$2bob2o9b2obo$o
bobo11bobobo$2o3b3o5b3o3b2o$8bo3bo$5b2obo3bob2o$5b2obobobob2o$9b3o2$9b
3o$8bo3bo$8b2ob2o!

The length three one has a corner that is different just to show that it can
EDIT: Length 6 arthropod and cheaper length 5 arthropod:

Code: Select all

x = 47, y = 72, rule = B3/S23
7$19b2ob2o$19bo3bo$20b3o2$20b3o$19bobobo$19bo3bo$16b2obo3bob2o$15bobo
b2ob2obobo$15b2o2bo3bo2b2o$19bo3bo$8b2o3b6o5b6o3b2o$8bobobo3bo9bo3bob
obo$10bob2o15b2obo$8bobobo3bo9bo3bobobo$8b2o3b6o5b6o3b2o$19bo3bo$15b2o
2bo3bo2b2o$15bobob2ob2obobo$16b2obo3bob2o$19bo3bo$19bobobo$20b3o2$20b
3o$19bo3bo$19b2ob2o2$19b2ob2o$19bo3bo$20b3o2$20b3o$19bo3bo$19b2o2bo$16b
2obo2b2ob2o$16b2obo3bob2o$19b2o2bo$9b2o3b5o5b5o3b2o$9bobobobo2bo7bo2b
obobo$11bobo15bobo$9bobobo2bo7bo2bobobobo$9b2o3b5o5b5o3b2o$19bo2b2o$16b
2obo3bob2o$16b2ob2o2bob2o$19bo2b2o$19bo3bo$20b3o2$20b3o$19bo3bo$19b2o
b2o!

I guess this solves it for arthropods of length 3+3n and 2+3n

[LWSSONHWSSONLWSS]

Should this be the new SKOP 45?

Code: Select all

x = 13, y = 17, rule = B3/S23
3bo4bo$b2ob4ob2o$3bo4bo6$3b2ob3o$3bob4o2b2o$2obobo3bo2bo$2obo2bob4o$3b
obo$3bobob3o$4bobo3bo$6bo2b2o$6b2o!

[hotdogPi]

Should this be the new SKOP 45?

Code: Select all

x = 13, y = 17, rule = B3/S23
3bo4bo$b2ob4ob2o$3bo4bo6$3b2ob3o$3bob4o2b2o$2obobo3bo2bo$2obo2bob4o$3b
obo$3bobob3o$4bobo3bo$6bo2b2o$6b2o!

Nope.

https://conwaylife.com/wiki/P45_pi-heptomino_hassler at 29 cells

[LWSSONHWSSONLWSS]

Nope.
https://conwaylife.com/wiki/P45_pi-heptomino_hassler at 29 cells

But it has a smaller bounding box. (13x17 vs 16x17)

[WhiteHawk]

Nope.
https://conwaylife.com/wiki/P45_pi-heptomino_hassler at 29 cells

But it has a smaller bounding box. (13x17 vs 16x17)

Guns are measured by BB, oscillators are measured by population.

[confocaloid]

Hopefully slightly more accurately,

• Glider guns are traditionally measured by the area of the bounding box (of the union of all phases excluding only escaped output gliders), which is defined per the following readme.txt file in an updated version of Dieter and Peter's Gun Collection:
  https://entropymine.com/jason/life/dpguns/readme.txt
• In the context of questions like "what are smallest known oscillators of a given period?" oscillators are usually measured by the minimum single-phase population.
  There might be two or more phases with the same minimum population, but the minimum population itself is a well-defined number.

In principle, nothing prevents starting and maintaining a separate collection for smallest known oscillators, measured in some other way (bounding box area of the union of all phases; minimum bounding box area of a single phase; MCPS of the union of all phases; minimum MCPS of a single phase; ...)

Alternatively, one could collect all known oscillators in a machine-readable format, and implement automated queries to answer every such question from a single maintained data source.

Nope.
https://conwaylife.com/wiki/P45_pi-heptomino_hassler at 29 cells

But it has a smaller bounding box. (13x17 vs 16x17)

Guns are measured by BB, oscillators are measured by population.

[Mr. T]

Arks? If so, Noah had a really bad construction manual.

Code: Select all

x = 93, y = 84, rule = B3/S23
8bobo$8b2o$bo7bo$b2ob2o$o4bo$bob2o$bo3$19bo$18bo$20bo$18b3o$16b3o$16bo
$15bo3$17b3o$17b2o45$80bobo$80b2o$73bo7bo$73b2ob2o$72bo4bo$73bob2o$73b
o3$91bo$90bo$90b3o3$88b2o$87bobo2$86b2ob2o$87bob2o$87b3o!

[hotcrystal0]

An appropriately-modified Gosper glider gun can be used as a glider reflector:

Code: Select all

x = 36, y = 35, rule = B3/S23
15b2o$15b2o$21b2o$20bobo$21bo$10b2o4b2o$10b2o3bo2bo$15bobo$16bo2$24bo
bo$16b3o5bo3bo$11b2o2bo2bobo7bo$9bo2bo2b2o7bo4bo4b2o$8bo19bo5b2o$2o6b
o10b3o2bo3bo$2o6bo15bobo$9bo2bo$11b2o14$33b2o$33bobo$33bo!