Travelling Ts(b3s23-a5) and its variants

Resu · Post by **Resu** » July 1st, 2025, 12:45 pm

LuveelVoom wrote: July 1st, 2025, 12:43 pm Are there any zebra stripe ships yet? If someone tells me how to set up LLSSS to search in zebra stripes I’ll try and find one.

Zebra stripe ships as in negative spaceships?

Code: Select all

x = 52, y = 52, rule = B3/S23-a5:T52,52
$52o2$52o2$52o2$52o2$52o2$52o2$52o2$52o2$52o2$52o2$52o2$24o2b3o2b3o2b
3o2b11o$25b2o3b2o3b2o3b2o3bo$22o3bo4bo4bo4bo5b6o$25b2o3b2o3b2o3b2o2bo
$24o2b3o2b3o2b3o2b11o2$52o2$52o2$52o2$22o2b3o2b3o2b3o2b3o2b8o$23b2o3b
2o3b2o3b2o3b2o$22o3b2o3b2o3b2o3b2o3b7o$46bo$20o27b5o$47bo$20o27b5o$46b
o$22o3b2o3b2o3b2o3b2o3b7o$23b2o3b2o3b2o3b2o3b2o$22o2b3o2b3o2b3o2b3o2b
8o2$52o2$52o2$52o!

LuveelVoom · Post by **LuveelVoom** » July 1st, 2025, 12:48 pm

Resu wrote: July 1st, 2025, 12:45 pm
LuveelVoom wrote: July 1st, 2025, 12:43 pm Are there any zebra stripe ships yet? If someone tells me how to set up LLSSS to search in zebra stripes I’ll try and find one.
Zebra stripe ships as in negative spaceships?
Code: Select all
x = 52, y = 52, rule = B3/S23-a5:T52,52
$52o2$52o2$52o2$52o2$52o2$52o2$52o2$52o2$52o2$52o2$52o2$24o2b3o2b3o2b
3o2b11o$25b2o3b2o3b2o3b2o3bo$22o3bo4bo4bo4bo5b6o$25b2o3b2o3b2o3b2o2bo
$24o2b3o2b3o2b3o2b11o2$52o2$52o2$52o2$22o2b3o2b3o2b3o2b3o2b8o$23b2o3b
2o3b2o3b2o3b2o$22o3b2o3b2o3b2o3b2o3b7o$46bo$20o27b5o$47bo$20o27b5o$46b
o$22o3b2o3b2o3b2o3b2o3b7o$23b2o3b2o3b2o3b2o3b2o$22o2b3o2b3o2b3o2b3o2b
8o2$52o2$52o2$52o!

More specifically, against-the-grain spaceships.

Resu · Post by **Resu** » July 1st, 2025, 12:53 pm

LuveelVoom wrote: July 1st, 2025, 12:48 pm More specifically, against-the-grain spaceships.

There might be some in jslife that works in B3/B23-a5, but I haven't found any yet.

ThePlayzr · Post by **ThePlayzr** » July 2nd, 2025, 3:23 am

can someone find a p10 domino sparker? the domino needs to face sideways, like this:

Code: Select all

x = 4, y = 6, rule = B3/S23-a5Super
2.A$A.A$.2A$2.A2$2.2D!
[[ GPS 10 ]]

PK22 · Post by **PK22** » July 2nd, 2025, 4:00 pm

I discovered a new family of oscillators: super pond hasslers! Sadly, they cannot create new periods, and you need fairly good clearance on the sparkers used.

Code: Select all

x = 170, y = 80, rule = B3/S23-a5
141bo$141bo2$135bo3b5o3bo$9b2o30b2ob2o88bobobobobobobobo$8bo2bo29bo3bo
87bo2bobobobobobo2bo$8bobobo29bobo89b2o2bo2bo2bo2b2o$9bo29b4ob4o25b2o
4b2o8bo48bob3obo$10bo27bo9bo24bo6bo7bobo43b4ob2ob2ob4o$37bobo3bo3b2o
23b3o4b3o5bobobo41bo4bo5bo4bo$9b2o25bobo4bo5b2o20bo4b2o4bo8b3o39b3ob2o
5b2ob3o$2bo5bo2bo23bobo11bobo18bobo3b2o3bobo7bobo36b2obo2b2o7b2o2bob2o
$bo5bob2obo4b2o15bobo5b2o7bo19bo4b2o4bo50b3ob2o5b2ob3o$obobobobo2bobo
2bo2bo14bo6bo2bo6bob2o17bo3b2o3bo5b4o42bo4bo5bo4bo$o2bo2bobo2bobobobob
o11b2obo5bob2obo5b2obo32b4o43b4ob2ob2ob4o$b2o4bob2obo5bo12bob2o4bobo2b
obob2o31b2o55bob3obo$8bo2bo5bo18b2obobo2bobo4b2obo25bo2bo7bobo40b2o2bo
2bo2bo2b2o9bo$9b2o20bob2o5bob2obo5bob2o19bo4bob2obo6b3o31bo7bo2bobobob
obobo2bo8bo$31b2obo6bo2bo6bo21bobo2bobo2bobobobobo33bo8bobobobobobobob
o$9bo24bo7b2o5bobo20bobobobobo2bobo2bobo44bo3b5o3bo4bo3b5o3bo$10bo23bo
bo11bobo19b3o6bob2obo4bo29bo3b5o3bo19bobobobobobobobo$7bobobo23b2o5bo
4bobo20bobo7bo2bo34bobobobobobobobo8bo8bo2bobobobobobo2bo$8bo2bo25b2o
3bo3bobo32b2o34bo2bobobobobobo2bo7bo9b2o2bo2bo2bo2b2o$9b2o26bo9bo25b4o
41b2o2bo2bo2bo2b2o22bob3obo$38b4ob4o26b4o5bo3b2o3bo30bob3obo12b2o8b4ob
2ob2ob4o$41bobo37bo4b2o4bo25b4ob2ob2ob4o7bo2bo6bo4bo5bo4bo$40bo3bo25bo
bo7bobo3b2o3bobo23bo4bo5bo4bo5bob2obo5b3ob2o5b2ob3o$40b2ob2o25b3o8bo4b
2o4bo24b3ob2o5b2ob3o4bobo2bobob2obo2b2o7b2o2bob2o$72bobobo5b3o4b3o22b
2obo2b2o7b2o2bob2obobo2bobo4b3ob2o5b2ob3o$73bobo7bo6bo26b3ob2o5b2ob3o
5bob2obo5bo4bo5bo4bo$74bo8b2o4b2o26bo4bo5bo4bo6bo2bo7b4ob2ob2ob4o$118b
4ob2ob2ob4o8b2o12bob3obo$122bob3obo22b2o2bo2bo2bo2b2o$118b2o2bo2bo2bo
2b2o9bo7bo2bobobobobobo2bo$117bo2bobobobobobo2bo8bo8bobobobobobobobo$
118bobobobobobobobo19bo3b5o3bo$119bo3b5o3bo4bo3b5o3bo$135bobobobobobob
obo8bo$125bo8bo2bobobobobobo2bo7bo$125bo9b2o2bo2bo2bo2b2o$139bob3obo$
135b4ob2ob2ob4o$64bo69bo4bo5bo4bo$63bo70b3ob2o5b2ob3o$63bo67b2obo2b2o
7b2o2bob2o$62b2o2bo67b3ob2o5b2ob3o$60b2ob2obo67bo4bo5bo4bo$64bo2bo67b
4ob2ob2ob4o$57bo3b4ob4o69bob3obo$58b4ob4o3bo64b2o2bo2bo2bo2b2o$60bo2bo
70bo2bobobobobobo2bo$61bob2ob2o67bobobobobobobobo$61bo2b2o70bo3b5o3bo$
64bo$52bo11bo11bo65bo$51bo11bo11bo66bo$51bo23bo$50b2o2bo8b2o9b2o2bo$
48b2ob2obo7bo2bo6b2ob2obo$52bo2bo5bob2obo9bo2bo$45bo3b4ob4o2bobo2bobob
o3b4ob4o$46b4ob4o3bobobo2bobo2b4ob4o3bo$48bo2bo9bob2obo5bo2bo$49bob2ob
2o6bo2bo7bob2ob2o$49bo2b2o9b2o8bo2b2o$52bo23bo$52bo11bo11bo$51bo11bo
11bo$63bo$62b2o2bo$60b2ob2obo$64bo2bo$57bo3b4ob4o$58b4ob4o3bo$60bo2bo$
61bob2ob2o$61bo2b2o$64bo$64bo$63bo!

Also, what do you need the p10 domino for?

ThePlayzr · Post by **ThePlayzr** » July 2nd, 2025, 7:28 pm

PK22 wrote: July 2nd, 2025, 4:00 pm Also, what do you need the p10 domino for?

A 50 LCM.
edit: I have looked everywhere, there are no suitable sparkers

. can you do some more hauls of C1?

PK22 · Post by **PK22** » July 3rd, 2025, 3:06 am

Another 3c/7 partial (the search got up to depth 700, but then it reset the depth):

Code: Select all

#C depth = 593
#C breadth = 15
#CLL state-numbering golly
x = 21, y = 94, rule = B3/S23-a5
6bo7bo$5bob2obob2obo$4b2obobobobob2o$3b3o3bobo3b3o$5b2o2bobo2b2o$b
o2bobo2bobo2bobo2bo$bo5bo5bo5bo$2ob3obo5bob3ob2o$4o3bo5bo3b4o$4bob
2o5b2obo$4bob2o5b2obo$3bo6bo6bo$5bob3ob3obo$2bobo11bobo$3bo2b3obob
3o2bo$7b3ob3o$4b2o2b2ob2o2b2o$5bo9bo$5bo9bo$5bo9bo2$3b3o9b3o$b2o2b
o9bo2b2o$b2obob2o5b2obob2o$3b4o7b4o$4bob9obo$6bo2b3o2bo2$7b2obob2o
$7b3ob3o$5b3o5b3o$5b2o2bobo2b2o$5bobobobobobo$6b2ob3ob2o$7b2o3b2o$
7bob3obo$7b2o3b2o$8b2ob2o$8b2ob2o$8bo3bo$7b2o3b2o$6b3o3b3o$5b2o2bo
bo2b2o$5b2ob2ob2ob2o$5bo9bo$4bob3o3b3obo$2b2ob2o7b2ob2o$3bobob2o3b
2obobo$b2o3bo7bo3b2o$6b2o5b2o$3bobo2bo3bo2bobo$3bob4o3b4obo$2b2obo
3b3o3bob2o$2b2obo9bob2o$7b3ob3o$3b2o11b2o$3b2o3b5o3b2o$5bo9bo$5b2o
2bobo2b2o$3bo2bo2bobo2bo2bo$2b6o5b6o$2bo2b2o7b2o2bo$5bobo5bobo$4bo
11bo$4bo11bo$3b2o2b2o3b2o2b2o$4b3o7b3o$5bo9bo$5bo9bo$6bo7bo$4b2obo
5bob2o$3bo3b2o3b2o3bo$7bo5bo$4bobo7bobo$3bobobo5bobobo$2b2o2b2o5b
2o2b2o$2b2o3bo5bo3b2o$4b4o5b4o$6b2o5b2o$7b2o3b2o$7b2o3b2o$6b2o5b2o
$6b3obob3o$5bob2obob2obo$4b4obobob4o$5bob2o3b2obo$3b2o2b3ob3o2b2o$
b3o2b3obob3o2b3o$b2o3bobobobobo3b2o$b2o3b9o3b2o$b3ob2obo3bob2ob3o$
3b3ob3ob3ob3o$b2o5bo3bo5b2o$o6b2obob2o6bo!

39 cells are wrong after 7 generations.
EDIT: I give up on 3c/7o, my computing power is better spent on apgsearch.
Longest partial:

Code: Select all

#C depth = 714
#C breadth = 21
#CLL state-numbering golly
x = 21, y = 111, rule = B3/S23-a5
6bo7bo$5bob2obob2obo$4b2obobobobob2o$3b3o3bobo3b3o$5b2o2bobo2b2o$b
o2bobo2bobo2bobo2bo$bo5bo5bo5bo$2ob3obo5bob3ob2o$4o3bo5bo3b4o$4bob
2o5b2obo$4bob2o5b2obo$3bo6bo6bo$5bob3ob3obo$2bobo11bobo$3bo2b3obob
3o2bo$7b3ob3o$4b2o2b2ob2o2b2o$5bo9bo$5bo9bo$5bo9bo2$3b3o9b3o$b2o2b
o9bo2b2o$b2obob2o5b2obob2o$3b4o7b4o$4bob9obo$6bo2b3o2bo2$7b2obob2o
$7b3ob3o$5b3o5b3o$5b2o2bobo2b2o$5bobobobobobo$6b2ob3ob2o$7b2o3b2o$
7bob3obo$7b2o3b2o$8b2ob2o$8b2ob2o$8bo3bo$7b2o3b2o$6b3o3b3o$5b2o2bo
bo2b2o$5b2ob2ob2ob2o$5bo9bo$4bob3o3b3obo$2b2ob2o7b2ob2o$3bobob2o3b
2obobo$b2o3bo7bo3b2o$6b2o5b2o$3bobo2bo3bo2bobo$3bob4o3b4obo$2b2obo
3b3o3bob2o$2b2obo9bob2o$7b3ob3o$3b2o11b2o$3b2o3b5o3b2o$5bo9bo$5b2o
2bobo2b2o$3bo2bo2bobo2bo2bo$2b6o5b6o$2bo2b2o7b2o2bo$5bobo5bobo$4bo
11bo$4bo11bo$3b2o2b2o3b2o2b2o$4b3o7b3o$5bo9bo$5bo9bo$6bo7bo$4b2obo
5bob2o$4bo2b2o3b2o2bo$6bo3bo3bo$3bo2b2obobob2o2bo$4bo11bo$6bo2bobo
2bo$3b3o2b2ob2o2b3o$3bo13bo$4bobo2bobo2bobo$6bobobobobo$8b2ob2o$8b
o3bo$6bobo3bobo$5b2obo3bob2o$5b2ob2ob2ob2o$2b4obobobobob4o$b2obobo
2bobo2bobob2o$b2o5b2ob2o5b2o$5bo2b2ob2o2bo$3bobo2b2ob2o2bobo$8bo3b
o$6b2o5b2o$5bo3b3o3bo$5bobo2bo2bobo$8bo3bo$7bo2bo2bo$7bobobobo$5b
2o7b2o$10bo$4b6ob6o$2bo7bo7bo$b2o3bo7bo3b2o$obo15bobo$o4b3o5b3o4bo
$3bo3bo5bo3bo$bobobob2obob2obobobo$bo2b2obobobobob2o2bo$b2obo4bobo
4bob2o$3ob2o4bo4b2ob3o$o6b2o3b2o6bo$b3obo3bobo3bob3o!

ThePlayzr · Post by **ThePlayzr** » July 4th, 2025, 8:13 pm

PK22 wrote: June 29th, 2025, 4:10 am The C4_1 search was mostly fruitless, except for this tetramer p8 thumb, which can be monomerised:
Code: Select all
x = 31, y = 17, rule = B3/S23-a5
10bo$10bo$9bo18bo$11bo16bo$4bo4bo2bo14bo$3bobo2bob2o17bo$2o3b4obo16bo
2bo$2bobo5bo12bo2bob2o$5b2o3b2o11b4obo$6bo5bobo13bo$6bob4o3b2o6b2o3b2o
$5b2obo2bobo9bobo$4bo2bo4bo11bo$5bo$7bo$6bo$6bo!

I found a smaller monomerisation:

Code: Select all

x = 8, y = 9, rule = B3/S23-a5
5bo$5bo$4bo$6bo$4bo2bo$3bob2o$b3obo$o4bo$2o3b2o!

This is 19 cells instead of 23.

User:HotdogPi/My discoveries · Post by **hotdogPi** » July 4th, 2025, 8:51 pm

19 to 17

Code: Select all

x = 7, y = 8, rule = B3/S23-a5
3b2o$4bo$4bo$3bo2bo$2bob2o$3obo$obobo$3bo!

ThePlayzr · Post by **ThePlayzr** » July 5th, 2025, 1:01 am

hotdogPi wrote: July 4th, 2025, 8:51 pm 19 to 17
Code: Select all
x = 7, y = 8, rule = B3/S23-a5
3b2o$4bo$4bo$3bo2bo$2bob2o$3obo$obobo$3bo!

Wow! That is very small, and I am almost certain it is minimal, but it is still 1 cell larger than the smallest period 8 oscillator. Also, thank you so much for completing goal 5 for us (have a mod post)!
Edit: p9 oscillator, minimum population is 42, the one on the SKOPs is 46.

Code: Select all

x = 15, y = 15, rule = B3/S23-a5
2b2o$3bo$2b3o$o$7o$7bo$2b2o3bo$bo6b2o$b2o7bo$10bo$10bobobo$8bobob3o$6b
obobobo$6b2o2bo$10b2o!

Edit 2: 42 to 40!

Code: Select all

x = 15, y = 15, rule = B3/S23-a5
4bo$3bobo$3b2o$o$7o$7bo$2b2o3bo$bo6b2o$b2o7bo$10bo2bo$10bobobo$8bobob
2o$6bobobo$6b2o2bo$10b2o!

If you hit a pond with this spark, it produces a loaf back tie loaf. This makes it the most common 14 cell still life in D2_x symmetry.

Code: Select all

x = 6, y = 6, rule = B3/S23-a5
3b2o$2bo2bo$2bo2bo$o2b2o$o$b2o!

Resu · Post by **Resu** » July 5th, 2025, 2:06 pm

I checked all of the glider collisions with common objects, I found nothing interesting except some toads and OTTs.

Code: Select all

x = 11, y = 15, rule = B3/S23-a5
9bo$8bo$8b3o4$4bo$4bo$4bo2$3o3b3o2$4bo$4bo$4bo!

Code: Select all

x = 10, y = 13, rule = B3/S23-a5
7bo$7bobo$7b2o4$2b3o2$o5bo$o5bo$o5bo2$2b3o!

ThePlayzr · Post by **ThePlayzr** » July 5th, 2025, 7:48 pm

Resu wrote: July 5th, 2025, 2:06 pm I checked all of the glider collisions with common objects, I found nothing interesting except some toads and OTTs.
Code: Select all
x = 11, y = 15, rule = B3/S23-a5
9bo$8bo$8b3o4$4bo$4bo$4bo2$3o3b3o2$4bo$4bo$4bo!
Code: Select all
x = 10, y = 13, rule = B3/S23-a5
7bo$7bobo$7b2o4$2b3o2$o5bo$o5bo$o5bo2$2b3o!

There's no real point in testing traffic lights, as the normal traffic light sequence produces a small lake*, making it insanely rare.
On an unrelated note, b3s23-a5 tends to evolve into 'bubbles' of active change, and over time split, fuse, and shrink. In contrast, CGoL evolves into small reactions very quickly, but then takes a long time to stabilize.
Edit: This might be useless, but here is a list of periods and how many times they occurred in C1 soups, with p2 rounded to the nearest million. The percentages are estimates.
p2 - ~31588 million occurrences (96.99%)
p20 - 900700 occurrences (2.766%)
p6 - 41678 occurrences (0.128%)
p8 - 23339 occurrences (716.6 parts per million)
p24 - 12075 occurrences (370.8 parts per million)
p3 - 1042 occurrences (31.99 parts per million)
p32 - 718 occurrences (22.05 parts per million)
p4 - 216 occurrences (6.632 parts per million)
p14 - 109 occurrences (3.347 parts per million)
p10 - 8 occurrences (0.25 parts per million)
EDIT 2: updated 27/05/26

Resu · Post by **Resu** » July 6th, 2025, 9:40 am

ThePlayzr wrote: July 5th, 2025, 7:48 pm There's no real point in testing traffic lights, as the normal traffic light sequence produces a small pond, making it insanely rare.

What's a small pond? A tub?

Code: Select all

x = 5, y = 37, rule = B3/S23-a5
2bo$b2o$2bo6$b3o$bobo$b3o6$3bo$b3o$3bo6$3bo$bobo$3bo6$b3o$o3bo$o3bo$o
3bo$b3o!

User:HotdogPi/My discoveries · Post by **hotdogPi** » July 6th, 2025, 9:42 am

Resu wrote: July 6th, 2025, 9:40 am
ThePlayzr wrote: July 5th, 2025, 7:48 pm There's no real point in testing traffic lights, as the normal traffic light sequence produces a small pond, making it insanely rare.
What's a small pond? A tub?

It's either a tub or a small lake. Either one fits the description.

Code: Select all

x = 16, y = 5, rule = B3/S23-a5
2bo$bo12bo$2o11b3o$bo12bo$2bo!

ThePlayzr · Post by **ThePlayzr** » July 6th, 2025, 5:24 pm

Resu wrote: July 6th, 2025, 9:40 am What's a small pond? A tub?

Oops, wrote the wrong word. I meant a small lake.

LuveelVoom · Post by **LuveelVoom** » July 6th, 2025, 5:27 pm

I believe no (2,1)c/6 ships exist at mid-steps 11. This was the best partial for both autochoke 15GiB and 25GiB. It's possible a better one exists at 11 but I doubt it.

Code: Select all

x = 20, y = 82, rule = B3/S23-a5
7bo$5b2ob2o$5bo2b2o$6bo2bo$4bo2bo$4b2o4bo$4bob3obo$5b2o$4b2obo$6bo2bo
$9b2o$3bo4bo$2b5ob3o$2bo3b2o$3b3obo$2bobob2obo$b2o3b2o$b2o$b2o2b3o$b2o
$b2o4bo$b2o$2obob2o$bob4o$bo3bo$bobo3bo$2b2o4bo$2bo2bobo$3b2o2bo$3bob
obo$4bo$5b2o$7b3o$7bo$5bo2bo$4b2ob3o$5bo2bo$4bobo$4bo2bo$3bo3bo$3bo3b
o$2b4ob2o$6bo2bo$2bob2ob2o$5bob2o$3b4o$5bobo2$5bob3obo$4b2o4bobo$4b2o
bo2bo$4b2o3bo2bo$5b2obob2o$5b3o3bo2$9bobob2o$8b2ob3o$8b4o2$10bo$9bob2o
$8b2ob2o$8bob2ob2o$13bo$11b2obo$9b3o$9b2o3b2o$9b2o3b2o$10b2o3b2o$14b3o
$12b2o2bo$13bo$16bo$11b3o3bo$10b2ob2o2bo$10bo3bo$14bo2b2o$12b2obobo$10b
ob2o3bo$11bo7bo$14b5o$10b2ob5obo!

ThePlayzr · Post by **ThePlayzr** » July 6th, 2025, 6:04 pm

LuveelVoom wrote: July 6th, 2025, 5:27 pm I believe no (2,1)c/6 ships exist at mid-steps 11. This was the best partial for both autochoke 15GiB and 25GiB.

Can you try a 2c/7d or c/7d search?
Also, if anyone needs this for slow salvoes or a sawtooth or anything, below is a diagram of what you can turn each object to with a glider. On the left is the target, on the right are possible results. The glider comes from the north-east.

Code: Select all

x = 59, y = 37, rule = B3/S23-a5Super
8.D4.D5.D2.A2.D6.D5.D5.D2.A3.D2.2A2.D$9.D3.D5.D2.A2.D6.D2.A2.D.2A2.D.
A.A2.D2.2A2.D$.3A.5D.A.D.3A.D2.A2.D.4A.D.A.A.D.A.A.D.A2.A.D2.2A2.D$9.
D3.D5.D2.A2.D6.D2.2A.D2.A2.D2.2A2.D2.2A2.D$8.D4.D5.D5.D6.D5.D5.D6.D6.
D$28.F$8.D4.D5.D2.A2.D5.D5.D5.D5.D2.2A2.D$9.D3.D5.D2.A2.D2.A2.D.A3.D.
2A2.D2.A2.D.A2.A.D$4A.5D.A.D.3A.D2.A2.D2.A2.D2.2A.F.A.A.D.A.A.D.A2.A.
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.D.A3.D2.A5.A2.D$.A.A.5D.A.D.3A.D2.A2.D.4A.D.A.A.D.A.A.D2.A5.A2.D$2.2A
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PK22 · Post by **PK22** » July 7th, 2025, 7:11 am

creeperman7002 wrote: April 21st, 2021, 11:39 am It turns out that any even period can be constructed in any rule supporting Margolus oscillators:
Code: Select all
rle
Is this fact already known?

I have written a script to make a Margolus oscillator for any even period:

Code: Select all

import golly as g
g.new('Margolus Oscillator')
targetperiod = abs(int(g.getstring('This script can create oscillators of any even period.\nEnter the desired period.')))

if targetperiod%2 != 0:
    raise ValueError('Can only create oscillators of even periods.')
defaultrule = 'B3/S23-a5'
#Default rule is Travelling Ts, but you can change it to any Margolus rule of your choice.
g.show('Setting rule to '+defaultrule+'.')
g.setrule(defaultrule)
tempperiod = targetperiod
powerof2 = 0
while tempperiod%2 == 0:
    powerof2 = powerof2+1
    tempperiod = tempperiod//2

newpowerof2 = 1
while ((2**newpowerof2)-1)%tempperiod != 0:
    newpowerof2 = newpowerof2 + 1
width = 2 * (2**newpowerof2)
height = 2
baseoscperiod = (2**(newpowerof2) - 1) * (2**(powerof2))
iterationsneeded = int(baseoscperiod/targetperiod) - 1
g.show(str(iterationsneeded)+' iterations needed to produce oscillator...')
for x in range(powerof2-1):
    width = width * 2
    height = height * 2
g.select([0, 0, width, height])
g.randfill(100)
g.copy()
g.setalgo('HashLife')
g.setbase(targetperiod)
g.setstep(1)
for x in range(iterationsneeded):
    g.run(targetperiod)
    g.paste(0, 0, 'xor')
g.setgen('0')
g.show('Oscillator assembled, checking...')
initialpattern = g.hash(g.getrect())
g.run(1)
trueperiod = 1
while g.hash(g.getrect()) != initialpattern:
    g.run(1)
    trueperiod = trueperiod+1
if trueperiod == targetperiod:
    g.show('Done. Probably.')
else:
    g.new('Error correction')
    g.show('Error detected! Attempting to correct...')
    width = 2 * (2**newpowerof2) - 4
    height = 2
    baseoscperiod = (2**(newpowerof2) - 1) * (2**(powerof2))
    iterationsneeded = int(baseoscperiod/targetperiod) - 1
    g.show(str(iterationsneeded)+' iterations needed to produce oscillator...')
    for x in range(powerof2-1):
        width = width * 2
        height = height * 2
    g.select([0, 0, width, height])
    g.randfill(100)
    g.copy()
    g.setalgo('HashLife')
    g.setbase(targetperiod)
    g.setstep(1)
    for x in range(iterationsneeded):
        g.run(targetperiod)
        g.paste(0, 0, 'xor')
    g.setgen('0')
    g.show('Oscillator assembled, checking...')
    initialpattern = g.hash(g.getrect())
    g.run(1)
    trueperiod = 1
    while g.hash(g.getrect()) != initialpattern:
        g.run(1)
        trueperiod = trueperiod+1
    if trueperiod == targetperiod:
        g.show('Done. Probably.')
        g.setgen('0')
    else:
        g.show('Both attempts failed to produce an oscillator with your desired period. Sorry. :(')

It can take quite a while to run for some periods - p26 takes a few minutes, has millions of live cells, and would not fit in LifeViewer without changing the maximum grid size or colliding with the edges. It might be able to create some unknown periods from 1-100 for this rule, but if the minimum population for an oscillator is >10000, please do not add it to the SKOP page.

EDIT: Actually, ignore what I said about population limits, we should be more worried about bounding box. As long as you can get the apgcode using the Catagolue object page (which requires a bounding box smaller than 400x400), you can add it to the wiki. As an example, I will add SKOP 18 (which is still unknown since we lack a p9 sparker).

EDIT 2: Ok, we have a problem. When told to create a p18, it makes a p6.

EDIT 3: Added error detection and correction, and it works (?) now!

Resu · Post by **Resu** » July 7th, 2025, 11:36 am

Is there a quicker way of finding useful T reactions with pairs of spartan objects, other than by hand?

ThePlayzr · Post by **ThePlayzr** » July 7th, 2025, 7:48 pm

PK22 wrote: July 7th, 2025, 7:11 am
creeperman7002 wrote: April 21st, 2021, 11:39 am It turns out that any even period can be constructed in any rule supporting Margolus oscillators:
Code: Select all
rle
Is this fact already known?
I have written a script to make a Margolus oscillator for any even period:
Code: Select all
import golly as g
g.new('Margolus Oscillator')
targetperiod = abs(int(g.getstring('This script can create oscillators of any even period.\nEnter the desired period.')))

if targetperiod%2 != 0:
    raise ValueError('Can only create oscillators of even periods.')
defaultrule = 'B3/S23-a5'
#Default rule is Travelling Ts, but you can change it to any Margolus rule of your choice.
g.show('Setting rule to '+defaultrule+'.')
g.setrule(defaultrule)
tempperiod = targetperiod
powerof2 = 0
while tempperiod%2 == 0:
    powerof2 = powerof2+1
    tempperiod = tempperiod//2

newpowerof2 = 1
while ((2**newpowerof2)-1)%tempperiod != 0:
    newpowerof2 = newpowerof2 + 1
width = 2 * (2**newpowerof2)
height = 2
baseoscperiod = (2**(newpowerof2) - 1) * (2**(powerof2))
iterationsneeded = int(baseoscperiod/targetperiod) - 1
g.show(str(iterationsneeded)+' iterations needed to produce oscillator...')
for x in range(powerof2-1):
    width = width * 2
    height = height * 2
g.select([0, 0, width, height])
g.randfill(100)
g.copy()
g.setalgo('HashLife')
g.setbase(targetperiod)
g.setstep(1)
for x in range(iterationsneeded):
    g.run(targetperiod)
    g.paste(0, 0, 'xor')
g.setgen('0')
g.show('Oscillator assembled, checking...')
initialpattern = g.hash(g.getrect())
g.run(1)
trueperiod = 1
while g.hash(g.getrect()) != initialpattern:
    g.run(1)
    trueperiod = trueperiod+1
if trueperiod == targetperiod:
    g.show('Done. Probably.')
else:
    g.new('Error correction')
    g.show('Error detected! Attempting to correct...')
    width = 2 * (2**newpowerof2) - 4
    height = 2
    baseoscperiod = (2**(newpowerof2) - 1) * (2**(powerof2))
    iterationsneeded = int(baseoscperiod/targetperiod) - 1
    g.show(str(iterationsneeded)+' iterations needed to produce oscillator...')
    for x in range(powerof2-1):
        width = width * 2
        height = height * 2
    g.select([0, 0, width, height])
    g.randfill(100)
    g.copy()
    g.setalgo('HashLife')
    g.setbase(targetperiod)
    g.setstep(1)
    for x in range(iterationsneeded):
        g.run(targetperiod)
        g.paste(0, 0, 'xor')
    g.setgen('0')
    g.show('Oscillator assembled, checking...')
    initialpattern = g.hash(g.getrect())
    g.run(1)
    trueperiod = 1
    while g.hash(g.getrect()) != initialpattern:
        g.run(1)
        trueperiod = trueperiod+1
    if trueperiod == targetperiod:
        g.show('Done. Probably.')
        g.setgen('0')
    else:
        g.show('Both attempts failed to produce an oscillator with your desired period. Sorry. :(')
It can take quite a while to run for some periods - p26 takes a few minutes, has millions of live cells, and would not fit in LifeViewer without changing the maximum grid size or colliding with the edges. It might be able to create some unknown periods from 1-100 for this rule, but if the minimum population for an oscillator is >10000, please do not add it to the SKOP page.

EDIT: Actually, ignore what I said about population limits, we should be more worried about bounding box. As long as you can get the apgcode using the Catagolue object page (which requires a bounding box smaller than 400x400), you can add it to the wiki. As an example, I will add SKOP 18 (which is still unknown since we lack a p9 sparker).

EDIT 2: Ok, we have a problem. When told to create a p18, it makes a p6.

EDIT 3: Added error detection and correction, and it works (?) now!

Yay!!!

can you add it to the wiki, and try to make a p22?

mmmmmmmmm · Post by **mmmmmmmmm** » July 8th, 2025, 1:57 am

I found a Tagalong for a T, it was buried in a pile of C1 'spaceships' (really multiple spaceships not interacting in anyway whatsoever). Is it known?

Code: Select all

x = 8, y = 7, rule = B3/S23-a5
2bo$b2o$b2o2b2o$o4b3o$b2o2b2o$b2o$2bo!

Edit: The Flying F tagalong has appeared in a C1 soup, and because it has now appeared twice, it is no longer semi-natural, but natural!

Now there are 5 natural spaceships. Here is the soup:

Code: Select all

x = 16, y = 16, rule = B3/S23-a5
bbbobbooobbobooo$
obooobboobbbbbbb$
ooobbbobobbbooob$
booboobooobbooob$
bbbobobbobboooob$
bbbbbboooobobooo$
obooboobobbbboob$
booobbboobbooobo$
bbboobbooooboooo$
obbbboobbbobbbbb$
oobobboobboboobo$
ooooobbbobbobobo$
bbbooobooooboboo$
boboobbboobobbbo$
obboboooobbbobbb$
oobbobbboboboboo!

It sure lasts quite a while, still going at 1300 generations.
Also, this is the first natural tagalong in this rule too!

PK22 · Post by **PK22** » July 8th, 2025, 2:32 am

mmmmmmmmm wrote: July 8th, 2025, 1:57 am I found a Tagalong for a T, it was buried in a pile of C1 'spaceships' (really multiple spaceships not interacting in anyway whatsoever). Is it known?
Code: Select all
x = 8, y = 7, rule = B3/S23-a5
2bo$b2o$b2o2b2o$o4b3o$b2o2b2o$b2o$2bo!

Yes, this is known. I found it quite a while back:

PK22 wrote: May 31st, 2025, 5:07 am c/4o:

Code: Select all

x = 46, y = 21, rule = B3/S23-a5
3o7b3o10b3o2b3o8b3o$bo9bo12bo4bo10bo2$26b2o$9bo3bo12b2o10bo3bo$8b3ob3o
9b2o2b2o7b3ob3o$8b2o3b2o9bo4bo7b2o3b2o$11bo14b2o12bo2$25b4o12bo$23bobo
2bobo10b3o$26b2o16bo$22b2o6b2o$25bo2bo12b2ob2o$23b2o4b2o$40b3o$23bo6bo
$22b2o6b2o9bo$23bo6bo11bo$42b2o$43bo!

The C1 '''''spaceships''''' were probably the result of a faulty script used when dani initially apgsearched the rule.

ThePlayzr wrote: July 7th, 2025, 7:48 pm Yay!!! can you add it to the wiki, and try to make a p22?

I added the p18 to the wiki, along with a note about how all even periods are possible. Even the p18 has a minpop of 3344 and is too large to have an apgcode. The p22 is even larger, and I do not want to make the file size of the SKOP page too large. I cannot even add the p22 as a pattern here - the RLE has over a million characters!

ThePlayzr · Post by **ThePlayzr** » July 8th, 2025, 4:13 am

PK22 wrote: July 8th, 2025, 2:32 am The C1 '''''spaceships''''' were probably the result of a faulty script used when dani initially apgsearched the rule.
ThePlayzr wrote: July 7th, 2025, 7:48 pm Yay!!! can you add it to the wiki, and try to make a p22?
I added the p18 to the wiki, along with a note about how all even periods are possible. Even the p18 has a minpop of 3344 and is too large to have an apgcode. The p22 is even larger, and I do not want to make the file size of the SKOP page too large. I cannot even add the p22 as a pattern here - the RLE has over a million characters!

Is there any way to fix the problem with the faulty script? Perhaps somehow delete them?
Edit:

PK22 wrote: June 14th, 2025, 4:16 pm I got it to work, and I found this very small tagalong for a T that has not even been found by ikpx2:
Code: Select all
x = 7, y = 9, rule = B3/S23-a5
b2ob2o$o3b2o$bo4bo$bob4o$3bobo3$3bo$2b3o!

This can perturb the 2 c/2 spaceships!

Code: Select all

x = 13, y = 28, rule = B3/S23-a5
8bobo$7b2ob2o$9bo7$8bo2$8bob2o$7b2ob2o$9b2o6$b2ob2o$o3b2o$bo4bo$bob4o
$3bobo3$3bo8bo$2b3o!

edit2: fixed quote problem

PK22 · Post by **PK22** » July 8th, 2025, 4:59 am

1). You might want to fix your quoting.
2). As the hauls have been committed, there is nothing we can really do to get rid of the spaceships. I checked, and it seems three versions of apgsearch are at fault - v0.54+0.21i (an altered version of Python apgsearch that supports INT rules), v4.22-ll1.21, and v4.95-ll2.1.15. The last two are especially surprising - was apgsearch v4.x really that bad at spaceship separation? How does xq4_gw27x440ez211, for example, get recognised as a single spaceship?

Versions 5.2 and 5.3 both improved object separation, so one of these updates probably patched the error.
It probably does not matter too much - a human can easily tell the actual spaceships apart from the pseudo ones, and ikpx2 is probably better for finding small p4 T based spaceships anyway. At the very least, it makes it easy to find predecessors for certain T salvos anyway.

Can someone with an old version of apgluxe saved try about a million soups in test mode please?

Also, quad T:

Code: Select all

x = 16, y = 16, rule = B3/S23-a5
o2bo2b2o5bobo$2b3ob3ob5o$2obobob4o2b3o$5bobobob2obo$4o5bo2bob2o$6bob5o
$b2o3b4o2bob2o$ob3o3bo5b2o$3b2o4b2ob2o$3obob4o2bob2o$4b4o3bo2b2o$obo7b
3obo$2obo3b2obob3o$b3o5b2obo$o4bobo2bo4bo$2o2bobo2b2ob4o!

ThePlayzr · Post by **ThePlayzr** » July 8th, 2025, 8:56 am

1. I fixed the quoting problem.
2. can you use ikpx to find a asymmetric c/3, c/5, c/7, spaceship, or a 3c/7, c/8, c/7d, or c/8d backend?
3. the predecessor:

Code: Select all

x = 5, y = 9, rule = B3/S23-a5
bo$bo$obo$bobo$4bo$bobo$obo$bo$bo!

We would never have found this if it weren't for the faulty python script.
EDIT:
Can you use your methuselah script on 8x8 soups?
Also, because the p22 must have D4+4 symmetry, can you post 1/4 of the oscillator, like the example below of the p18?

Code: Select all

x = 62, y = 61, rule = B3/S23-a5
60b2o$60b2o$58b2o$58b2o$58b2o$58b2o$58b2o$58b2o$52b6o2b2o$52b6o2b2o$52b
6o2b2o$52b6o2b2o$52b6o2b2o$52b6o2b2o$46b6o6b2o$46b6o6b2o$44b2o6b6o2b2o
$44b2o6b6o2b2o$42b2o2b6o6b2o$42b2o2b6o6b2o$40b2o2b2o6b6o2b2o$40b2o2b2o
6b6o2b2o$38b2o2b2o2b6o6b2o$38b2o2b2o2b6o6b2o$38b2o2b2o2b6o6b2o$38b2o2b
2o2b6o6b2o$34b4o2b2o2b2o6b6o2b2o$34b4o2b2o2b2o6b6o2b2o$32b2o4b2o2b2o2b
6o6b2o$32b2o4b2o2b2o2b6o6b2o$32b2o4b2o2b2o2b6o6b2o$32b2o4b2o2b2o2b6o6b
2o$32b2o4b2o2b2o2b6o6b2o$32b2o4b2o2b2o2b6o6b2o$32b2o4b2o2b2o2b6o6b2o$
32b2o4b2o2b2o2b6o6b2o$32b2o4b2o2b2o2b6o6b2o$32b2o4b2o2b2o2b6o6b2o$32b
2o4b2o2b2o2b6o6b2o$32b2o4b2o2b2o2b6o6b2o$32b2o4b2o2b2o2b6o6b2o$32b2o4b
2o2b2o2b6o6b2o$32b2o4b2o2b2o2b6o6b2o$32b2o4b2o2b2o2b6o6b2o$32b2o4b2o2b
2o2b6o6b2o$32b2o4b2o2b2o2b6o6b2o$32b2o4b2o2b2o2b6o6b2o$32b2o4b2o2b2o2b
6o6b2o$12b20o2b4o2b2o2b2o6b6o2b2o$12b20o2b4o2b2o2b2o6b6o2b2o$12b20o2b
4o2b2o2b2o6b6o2b2o$12b20o2b4o2b2o2b2o6b6o2b2o$8b4o20b2o4b2o2b2o2b6o6b
2o$8b4o20b2o4b2o2b2o2b6o6b2o$8b4o20b2o4b2o2b2o2b6o6b2o$8b4o20b2o4b2o2b
2o2b6o6b2o$8b4o20b2o4b2o2b2o2b6o6b2o$8b4o20b2o4b2o2b2o2b6o6b2o$8b4o20b
2o4b2o2b2o2b6o6b2o$8b4o20b2o4b2o2b2o2b6o6b2o$8o4b20o2b4o2b2o2b2o6b6o2b
2o!

ConwayLife.com

Travelling Ts(b3s23-a5) and its variants

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