Spaceships in B23 rules (EDIT: Found one!)

[velcrorex]

(See edit below with the find.)
It's thought that there are no spaceships in rules with B23, but I'd like to present some evidence that there likely are such spaceships. In addition, I'm hoping any interested parties will help search for an explicit example.
Since any rule with B23 (without B0 or B1) is highly explosive, it makes sense to look for ships with as high a speed as possible. I've had some promising partial results searching for ships with speed c and period 2. I've been searching for short wide ships, and searched with height 20 in two promising rule blocks: B23X/S13Y where X and Y are subsets of {6,7,8} and B235Z/S14W where Z is a subset of {7,8} and W is a subset of {6,7,8}. I have completed searches of larger widths in a few of these rules. Particularly promising rules include B2367/S137 in which I found this large partial pattern:

Code: Select all

x = 174, y = 23, rule = 137/2367
40b4o11boo6b9o7boo12b3o13b9o4b4o4b3o9b4o10boo9b4o$39bo4boobboo6boo6bob
obobo3b6obo3boo5booboo4boobboo3bobobobo4boobo3boo3boo6boobo9boobb3o5bo
4b3o$28boo8booboobb4obo3bo3bo3bobbo3bobboo9boobbo3bobbobbobb3ob3obobbo
3bobbo4bobb3obbobo6bobbobboo7bobboboo3boo3boo$27bobb3o4bobbobbob4o3b3o
4b4obb5obboo4b3o3bobboo3bo3b3oboboboboobobobobobob3obobo3boobbo3b4obbo
bobboobboobobobo4b3obb3o$26booboboob4o3b3ob3o5bo5b5obbobo4b7obb4obb3o
3b3obo4b5ob3o3b3oboobo3bob3o3b3o4bobbo3bo4b3obobo3bobo3b4o$13boo10bobb
3oboo4b3o3bobb4obbooboobbobbooboboo7bobbo3bo3b3o3booboob3obo4bo3bobobo
bb5o3bobobboobo6boobbobboobobobbo5bobo5boo$12bobb4obb5o9boob3o3bobbo6b
o3b6o5bobobboboobbo3bo3boobbo3boo3boboobob3o5b3obo6bobo3booboobbo3boo
bbobo3b3obobo3bobobobb3o$11boo3b3obo5b3obob4oboobobboboboobooboo3b4o6b
3o4bobbobobboobb3obboboo6boboo3boobbo4boboo3bobboo3b3o3bo4bobbo6booboo
boboboo5boo$9boobobo8booboobo3bo4boobobb4o5bobob3obobb5o3boo4b4oboob4o
bo3bo7b3o3bobbo5boobbo5bobboboobo4bo3b7o3boboobbo4b3ob4o$8bo5bobo3bob
4oboobboo4b3obo3bo7bo4bobo6b3o3bobobooboo4boobboboboobb3oboobo3bobbo3b
obbo5bo6boboobbobb4obboob3obbobob4o3bob4obo$7boobobob4oboobbo3bobobboo
bboobbo3bobo5boo9bob3o4bobboo3boboboob5ob4o5bob4obb3ob3o6bobbobo4b3o3b
oboobboo3boo5bo3bo3boo4boo$4b3obobobobo7b4o5bobobo4bo3bo3b3o4b3obbo3b
5obobbobobo3b5ob4o4bo6b10ob3o5bo3boo3bo3boo4b4obb3obboo5bobb3ob3obobbo
$3bo4bobboo3boobboo5bo4b3o3b4ob8ob3obobo3b6obboobboboboobb10ob4o7bobb
oobb3obooboobobobobbobob4obobbo4boob6obbob3o3bobobbobo$bboobbo3bo3bob
oobboboo5b5o5b3ob6o3boo3boobobboobbob3ob3o3bo3booboobbo4bobboboob9obob
3o3boboboobobo3b3obb3obb6ob3obbobboobob3o$ooboboobobb3o3bob3obb3o4bob
3obbobb3obbobobobbobbo3b3ob6ob3obo3bobobobbo3b5o6bobboo4b3ob4obboo3boo
3boobb4obbooboo3b4o4boboob3obo$bo3bo6bo6bo3boo4bobobobobbobb3obbobboo
3b3ob5ob4oboboboboobbo3bobbo3boo6boobooboo4boob3obb3ob3obb3ob3obb3ob3o
b6obbo4bobobob4oboo3bo$bobobobbo7b4obbo5bo3b6obobobobob6oboobobbob9obo
b6obob9ob4obboob3ob4ob3ob4ob3ob4ob3ob4ob3ob4ob3obbob3obbooboob3o3bo$8b
obo6b3obobbooboobbobobb3ob5ob3obb3ob3obbo3bo4b3ob3obb3ob3obb3obob5oboo
bobob4obobob4obobob4obobob4oboboboboo3bobob9ob5ob4o$13bo3bobbobobbobo
bbobo5bobo3bobo6bob3oboboboobo4bobo6bobo6boboo3b6obob6obob6obob6obob6o
bob5ob4ob3obb3ob3ob6o$o25bo28b4ob5o26b3o6b3ob3obb3ob3obb3ob3obb3ob3obb
3ob3obbobobbobo6bob7obboo$3bo3bobbo44bobbobo3bo26bo5bo4bobo6bobo6bobo
6bobo6bobo20b3o7b3o$20bobbo5bobbo128bo4bo4bo$26bo!

This suggests there are spaceships in B23 rules. Anyone have any ideas or suggestions about finding an explicit spaceship?

EDIT: Finally found one by messing about in WLS trying to narrow down the pattern until something symmetric appeared. The lucky rule was B23578/S14678.

Code: Select all

x = 181, y = 22, rule = 14678/23578
13b7o3b3o129b3o3b7o$12boboo4b3o3bo8boo107boo8bo3b3o4boobo$11b7obboobb
oo5b4obboo103boobb4o5boobboobb7o$14boobboobo4b4o6boobo101boboo4b4o3boo
4bob3o$10b3ob9ob4obbob4o4bo99bo5bobobobbo3bobbo3b3ob3o$9bobbobbooboob
5obbobob3o3booboo95boo3boobo4boo3boobb3obboo4bo$8bob6obooboboobboobbo
bbo4b3obbo93bobbobbobob3o3bo3b3ob5o3boobo$7boboob3obbooboob4oboo4b3ob
4obbo91bobb3obbob4oboboob3obo3boobobboobo$6bobboboobboboob5obbobb3obob
oobobo3bo89bobooboobobobbo4b3ob4o3bobb3obobbo$5bobobb7obo3boobb5obbobo
4boobbo91b6obbobo3bo3booboobbooboob3o3bobo$3boo3b3oboobobbooboobobobo
bbobooboobobob4o87b4o3bobb9o4boobb5obboobobboboo$bbobbo3bobobob8o6b5ob
oobo3b6o85b4obo3boboobobobboob3obbo5bobobbob3obbo$3boob3o4bobboo3boob
3obbob5obb4obb3o12b5o4b6o4b3o19b3o4b6o4b5o12b3obob5ob3o3b6obobo4bobobb
ooboboo$boobb4ob4ob3o4bobobob7obboobboobb4o3b4obbo3b3obbobboobbobb3ob
3o13b3ob3obbobboobbobb3o3bobb4o3boboob3ob3ob6obboboboobb6o5bobbo3bo$bb
oboobobobbooboobooboobbobobb5obb4obo3bobb3oboobooboob4o3b3obb3obooboo
5b5o5boob4o3b3obb3obooboobooboob3obobboo3b4ob6obbobb5obb4o5booboo$3obb
obob4oboob4obboob9obboob3o6boo3b3obb3ob3ob3ob4ob7o4bo5bo4b7ob3ob4ob3ob
3obb3o3boo3bob4oboboob5obboobo3bobbo3boobob3obbobo$b10obbob5oboob15ob
3o3boboboob3oboob5ob10oboobb5o3bo3b7obboob10ob5oboob3oboob4ob3ob14ob4o
b4obb3obb3o$bo7bobb5obboob23obb5ob3obooboobb6obb12obboo4boo4b11obb6obb
ooboob3ob4ob26oboob3oboo4bo$5bobb3obb74obob3obob71obb3o5bobbo$9b159obo
$9bo76bobbobbobbo71bo$12bobbo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3b
o3bo3bo3bo15bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo8bo!

[Sokwe]

Amazing! I have recently been searching for spaceships in B2 rules for which no spaceships are known, but I did not even consider searching in rules with B23. The shape is somewhat reminiscent of some of the ships I have found, with large wings supporting a shorter center. I have noticed that some rules give a myriad of wide partial results at sufficient heights, but give almost nothing at smaller heights. Did you find that there were no 2c/2 spaceships of height 22 in this rule?

[velcrorex]

It depends how you count the hight. This is a ship of height 22, in that each phase has a height of 22, which is how afind counts is. But if you were to use WLS to look for it, you'd need to search height 23, since the second phase is shifted up one from the first because it moves at speed c. So, afind would eventually find this ship with height 22.

I searched both rule blocks completely with afind, height 20. I kept track of how long the best partial pattern was, and started searching rules with long partials at larger heights, which is how I found the partial in my original post. One problem is a rule with the best partial at one height need not indicate significantly better partials at a slightly higher height. In fact, another previously unimpressive rule may suddenly have a great partial at another height. Another issue is that at height n, there may not too many results, but at height n+1 there are 'infinitely' many. Afind chokes when there are 'infinitely' many, and WLS quickly runs out of space on the board. What to do? Well...

I started looking at rule B23578/S14678 for short long ships, and found partials which repeated themselves, kind of like wickstretchers. So I thought to check this rule for short wide ships. I had already searched this rule at height 20, and the best partial was unimpressive. I tried searching at height 21, and the best partial was 50% longer. It looked promising so I searched at height 22. Afind was taking a while, slowly churning through this search, so I did the search in WLS to see what was happening. There I found that search quickly went to full length and noted the bottom edge of the pattern repeated. I wanted to find a place in the pattern that was symmetric, so I could finish the ship with the first half only reflected. But the ship was so tall, it was unlikely to be symmetric. I thought the bottom edge would be easy to continue, so I cut down the top, and found some partials that were short in the middle. After some tinkering I found what I was looking for, put the halves together, and made this ship. There may exist shorter ships in this rule, or in others.

BTW, what do you do with the new B2 ships you find? Does D. Eppstein add them to his data base? I wasn't sure if that was still an active project.

EDIT: Found a slightly smaller one. Same rule.

Code: Select all

x = 141, y = 22, rule = 14678/23578
13b7o101b7o$12boboo4b4o3b5o77b5o3b4o4boobo$11b7obboobb3oboobb3o71b3obb
oob3obboobb7o$14boobboobobo3b3oboobbo69bobbooboo9bob3o$10b3ob14o3b4o
71b4o7bobbo3b3ob3o$9bobbobboobooboobb3o3b4obo67bob3obboob5ob3obboo4bo$
8bob6oboobobobbobobb6oboo63boob5obb3oboobob5o3boobo$7boboob3obbooboobo
bo3bo5bo3bo61bo3bo3boboo4boobo3boobobboobo$6bobboboobboboob4ob5oboboo
bbobb3o55b3obbo3boobobo3bobboo3bobb3obobbo$5bobobb7obo3bobbobooboobboo
bboo4b4o11boo19boo11b6o4booboboboobobbo4booboob3o3bobo$3boo3b3oboobobb
oob9ob3oboobb5oboob3obb3obb4o17b4obb3obb3oboobbobbobobobobobb3o3bobb5o
bboobobboboo$bbobbo3bobobob9ob3ob4ob3o3boobb3o3b3o4b4o19boob3obbo4b3o
3bob5oboboob3o3bobo5bobobbob3obbo$3boob3o4bobboo3booboboobbobobo3b6ob
ooboboo3bob4o19b4obobo4boobob4oboobbobbobob3ob3obo4bobobbooboboo$boobb
4ob4ob3o4bo3bobb10o3bobbobboboboobb8o13b16oboboboboob3obob3obobobo3b6o
5bobbo3bo$bboboobobobboobooboobooboboob4obobobb5ob3obo3b10o5b5o5b9o4bo
bob5obboobboob3ob9obb4o5booboo$3obbobob4oboob4o3b3ob5obobobboobobbobbo
bo3b9o4bo5bo4b8ob5obbo3boboob12o6bobbo3boobob3obbobo$b10obbob5ob4ob6ob
oobobb5oboob5ob12o3bo3b16oboboob6oboo5b5obooboob4obb3obb3o$bo7bobb5obb
oob4ob17ob3ob4ob10obboo4boo4b8obob5ob11ob7ob5oboob3oboo4bo$5bobb3obb
54obob3obob51obb3o5bobbo$9b119obo$9bo56bobbobbobbo51bo$12bobbo3bo3bo3b
o3bo3bo3bo3bo3bo3bo3bo3bo3bo15bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo8bo!

[Sokwe]

what do you do with the new B2 ships you find? Does D. Eppstein add them to his data base?

I have yet to send him my results in B2 rules. I have, however, sent him a collection of ships that represent new speeds for various B3 rules, but, as of yet, he has not added them to his database. I intend to post my results on the forums once I get them sufficiently organized.

[Hektor]

I found an anti-spaceship made of dead cells.
It's a p6 but I don't know how to measure its speed...

Code: Select all

x = 76, y = 59, rule = B23578/S14678
b25o20b26o$74o$74o$74o$74o$74o$74o$74o$74o$74o$74o$74o$74o$74o$74o$74o
$74o$74o$74o$75o$75o$b74o$b74o$b74o$b74o$b74o$b37ob36o$b36o2b36o$b36ob
37o$b35obob36o$b36ob37o$b36o2b36o$b37ob36o$b74o$b74o$b74o$b74o$b74o$b
74o$2b73o$2b73o$2b74o$2b74o$2b74o$2b74o$2b74o$2b74o$2b74o$2b74o$2b74o$
2b74o$2b74o$2b74o$2b74o$2b74o$2b74o$2b74o$2b74o$26b25o!

[knightlife]

It moves one cell every 7 generations, so its speed is c/7 orthogonally.

[velcrorex]

New one in a different rule:

Code: Select all

x = 183, y = 19, rule = B23678/S24678
20b3o11b5o105b5o11b3o$18b2ob3o9bo2bo2bo2b3o93b3o2bo2bo2bo9b3ob2o$15b3o
b3o2b2o3b3obob7o2b2o3b3o79b3o3b2o2b7obob3o3b2o2b3ob3o$17b2ob5ob2o2bo2b
o2bo6b3ob3ob5o71b5ob3ob3o6bo2bo2bo2b2ob5ob2o$14bob7ob3ob3obo2bob3o2b2o
b2o2bo3b2obo69bob2o3bo2b2ob2o2b3obo2bob3ob3ob7obo$4b4o5b2ob3o2b8obo4bo
bob4o4bo2bob4obo67bob4obo2bo4b4obobo4bob8o2b3ob2o5b4o$3bob2ob2o4b2ob4o
6b2ob2ob3ob2obobo9bo2bo6b4o51b4o6bo2bo9bobob2ob3ob2ob2o6b4ob2o4b2ob2ob
o$2bob5obo3bob3ob7ob3obobobobo3bo2bo3bo3bo3b2o2bob2ob5o2b9o19b9o2b5ob
2obo2b2o3bo3bo3bo2bo3bobobobob3ob7ob3obo3bob5obo$4bo2b3ob2ob10o2bob2ob
o2bob2o8b7ob2obobo2bobobobob3o2bo3bo2bo17bo2bo3bo2b3obobobobo2bobob2ob
7o8b2obo2bob2obo2b10ob2ob3o2bo$b2o2b5ob4o2b2o2b6obob2o2b3obo3b2o7bo2b
2o2b4o2b5obo2b6ob7o3b3o3b7ob6o2bob5o2b4o2b2o2bo7b2o3bob3o2b2obob6o2b2o
2b4ob5o2b2o$obobo3bo3b2o4b3o2bob6o4b3ob2obob3obo4bo2b4obo3b4ob2o5b2ob
3ob5obobob5ob3ob2o5b2ob4o3bob4o2bo4bob3obob2ob3o4b6obo2b3o4b2o3bo3bobo
bo$2b7o2bo2bobobob13o3b5ob2obo2b3obo5bob3obobo3b3obob3o2b3ob2obob3obob
2ob3o2b3obob3o3bobob3obo5bob3o2bob2ob5o3b13obobobo2bo2b7o$2b2obo10bob
2o5b2o4b3obobob3ob7o2bob2ob3obo2b3ob4ob2o2b5o2b2ob9ob2o2b5o2b2ob4ob3o
2bob3ob2obo2b7ob3obobob3o4b2o5b2obo10bob2o$bob2o2bobo2b2obo2b16obobo2b
25ob2o2b2ob13o2bob3obo2b13ob2o2b2ob25o2bobob16o2bob2o2bobo2b2obo$3bob
3ob6obob7obob127obob7obob6ob3obo$3b4o2b165o2b4o$14bo3bo5bo3bo125bo3bo
5bo3bo$5bo5bo9bo9bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo
3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo9bo9bo5bo$2bo5bo165bo5bo!

[LaundryPizza03]

I found this photon partial and needed help narrowing the search space or finding a better rule.

Code: Select all

x = 34, y = 21, rule = B23/S1357
2bobo21bobo2bobo$3ob3o5bo5bo5b3ob4obo$bobobo3bo5bo5bo3bobobo$bo3bo19bo
3b3o$2obob2o11bo5b2obo3bo$2b2obobo2bobobo2b2o4b2o2b2o2bobo$3bo3b2obo3b
obo3b2obo2b4o$4bo4bob2ob3o2b2o5b3ob2o$5bobo5bo8b2o3bo4bo$5b2o13bo7b2ob
o$3bobo3b3obob3o2bobob3ob2obobo$b3ob2o6bobob2ob2obo2bob2o$2bobobob4ob
8o4bo3bo2b2o$2bo3bobo2b3ob3o2b2o5bob3o$b2obobo2bob7o2b6o6bo$3b2ob2o2b
2o2b5obobo3b2obo$4bo2b4o2b2o2bo2bob2o6b2o$5b2o4b2o8bo3b3o2b3o$18b3obob
2obo3bobo$19bobo3b3o4b2o$20b6o2b4o!

This rule does have a lightspeed wave with period 2 and width 11, so maybe we could try finding partials that narrow down to this wave.

Code: Select all

x = 22, y = 6, rule = B23/S1357:T22,0
bobo3bobo2bobo3bobo$2ob5ob4ob5ob2o$b3o3b3o2b3o3b3o$2bo2bo2bo4bo2bo2bo$
4b3o8b3o$4o3b8o3b4o!

Also I found this rule that has photon partials, except long instead of wide. It gives me the idea of building a spaceship by using such pieces to stabilize a superstring.

Code: Select all

x = 53, y = 32, rule = B236/S3578
6b3o4b3o22b2o3b2o$7bo6bo22bo2b3o2bo$5b3o6b3o19b2o2bobo2b2o$3b2o2bob4ob
o2b2o16bobobobobobobo$4bo2bo6bo2bo19bo3bo3bo$2bobobo2bo2bo2bobobo17b3o
3b3o$4b3obob2obob3o18bob2obob2obo$4bobob6obobo19b3o3b3o$3bobob8obobo
16bob3obob3obo$2b2o3b8o3b2o17b3o3b3o$bobobob8obobobo16b3obob3o$3bo3b8o
3bo15b2ob3o3b3ob2o$3b3ob8ob3o18b3obob3o$2bob2o2b2o2b2o2b2obo13bobo2b2o
3b2o2bobo$3b3o2bob2obo2b3o13bobobobo2bo2bobobobo$bob3obob4obob3obo13bo
3bobobobo3bo$3b3o3b4o3b3o15b3o3b3o3b3o$3b3obob4obob3o14bob2obobobobob
2obo$2bo2b5o2b5o2bo14b3o3bobo3b3o$4b2ob3o2b3ob2o14bob3obo5bob3obo$b4ob
2obo2bob2ob4o13b3o2b2ob2o2b3o$2b2obo10bob2o14b2o2bo2bo2bo2b2o$2b3o4bo
2bo4b3o13bo3bo2bobo2bo3bo$3bob2obo4bob2obo19b7o$3b2o12b2o13bob2ob2obob
ob2ob2obo$bo2b3o8b3o2bo12b3o2bo2bo2bo2b3o$2b4obo6bob4o11bo2bob2o7b2obo
2bo$o2bo2b2o6b2o2bo2bo11b3o2b2obob2o2b3o$4bobob6obobo12bob2o3b3o3b3o3b
2obo$2bobo2b8o2bobo13b3o11b3o$o2bobobo2b2o2bobobo2bo10b2obobob2ob2obob
ob2o$ob2ob2obo4bob2ob2obo8bo2bo2bobo2bo2bobo2bo2bo!

Lastly, I note (surprisingly) that in gfind the search B23/S246/o2n2u/l128 reaches a depth of around 71, or about 18 rows. Here is a similar partial from LSSS:

Code: Select all

x = 17, y = 29, rule = B23/S246
15bo$14bo$8bo$9bo2b2obo$2bo3bo3b2o$3bo6b3o$2bo2bo2bob3o2bo$8b2obob4o$
5b2o3b3ob3o$4b3o3b2obobo$2bo6b2ob2o$3b2o3bo2b2o2b2o$bo4bo2b3ob3o$2b2o
2bo3b6o$3o3bo3b4o$2b2o2bo3b6o$bo4bo2b3ob3o$3b2o3bo2b2o2b2o$2bo6b2ob2o$
4b3o3b2obobo$5b2o3b3ob3o$8b2obob4o$2bo2bo2bob3o2bo$3bo6b3o$2bo3bo3b2o$
9bo2b2obo$8bo$14bo$15bo!

[googleplex]

I've found what might be the new lowest population ship in an outer-totalistic rule with b23:
It's in the same rule as a couple ships earlier in the thread.

Code: Select all

x = 115, y = 23, rule = B23578/S14678
12bo2bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo
2bo$9bo95bo$9b97o$5bo2b3o2b89o2b3o2bo$bo7bo2b5o2b5ob10ob7ob4ob17ob4ob
7ob10ob5o2b5o2bo7bo$b10o2bob8ob5obob4ob6ob4ob3ob9ob3ob4ob6ob4obob5ob8o
bo2b10o$3o2bobob4ob2ob6obob3obob3o3bo2bobo2b2o2b2o2b2obob2o2b2o2b2o2bo
bo2bo3b3obob3obob6ob2ob4obobo2b3o$2bob2obobo2b2ob2ob2ob6o2b7obo2bobobo
3b3o2bob2ob2obo2b3o3bobobo2bob7o2b6ob2ob2ob2o2bobob2obo$b2o2b4ob4ob3o
5b2obo3b2obob2o2b3ob2o3b4o3bo3bo3b4o3b2ob3o2b2obob2o3bob2o5b3ob4ob4o2b
2o$3b2ob3o4bo2b2o3b6obobo3bobo4b2o2b4o4b2o5b2o4b4o2b2o4bobo3bobob6o3b
2o2bo4b3ob2o$2bo2bo3bobobob5o2b3o3b8ob2o6bob2ob3o2b5o2b3ob2obo6b2ob8o
3b3o2b5obobobo3bo2bo$3b2o3b3ob2obo2b7o9b2o2b7ob4o3b2o5b2o3b4ob7o2b2o9b
7o2bob2ob3o3b2o$5bobo2b7obo2bobo4b2obob5o7b2ob2ob2o9b2ob2ob2o7b5obob2o
4bobo2bob7o2bobo$6bo2bob2o2bob2o2b2o3bobo3b5o10b2o2b3o7b3o2b2o10b5o3bo
bo3b2o2b2obo2b2obo2bo$7bob2ob3o2b2o3b2ob2ob4ob2o14b4o9b4o14b2ob4ob2ob
2o3b2o2b3ob2obo$8bob6ob2ob5o2b2obo2b2o45b2o2bob2o2b5ob2ob6obo$9bo2bo2b
2ob3obo2b4obob4o43b4obob4o2bob3ob2o2bo2bo$10b3ob10obo2bo4b2o45b2o4bo2b
ob10ob3o$14b2o2b6o3bob3o51b3obo3b6o2b2o$11b7o4b3o65b3o4b7o$12bob2o4b2o
3b3o59b3o3b2o4b2obo$13b8o2b4o61b4o2b8o$21b2o69b2o!

also bump

[LaundryPizza03]

I've found what might be the new lowest population ship in an outer-totalistic rule with b23:
It's in the same rule as a couple ships earlier in the thread.

Code: Select all

x = 115, y = 23, rule = B23578/S14678
12bo2bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo
2bo$9bo95bo$9b97o$5bo2b3o2b89o2b3o2bo$bo7bo2b5o2b5ob10ob7ob4ob17ob4ob
7ob10ob5o2b5o2bo7bo$b10o2bob8ob5obob4ob6ob4ob3ob9ob3ob4ob6ob4obob5ob8o
bo2b10o$3o2bobob4ob2ob6obob3obob3o3bo2bobo2b2o2b2o2b2obob2o2b2o2b2o2bo
bo2bo3b3obob3obob6ob2ob4obobo2b3o$2bob2obobo2b2ob2ob2ob6o2b7obo2bobobo
3b3o2bob2ob2obo2b3o3bobobo2bob7o2b6ob2ob2ob2o2bobob2obo$b2o2b4ob4ob3o
5b2obo3b2obob2o2b3ob2o3b4o3bo3bo3b4o3b2ob3o2b2obob2o3bob2o5b3ob4ob4o2b
2o$3b2ob3o4bo2b2o3b6obobo3bobo4b2o2b4o4b2o5b2o4b4o2b2o4bobo3bobob6o3b
2o2bo4b3ob2o$2bo2bo3bobobob5o2b3o3b8ob2o6bob2ob3o2b5o2b3ob2obo6b2ob8o
3b3o2b5obobobo3bo2bo$3b2o3b3ob2obo2b7o9b2o2b7ob4o3b2o5b2o3b4ob7o2b2o9b
7o2bob2ob3o3b2o$5bobo2b7obo2bobo4b2obob5o7b2ob2ob2o9b2ob2ob2o7b5obob2o
4bobo2bob7o2bobo$6bo2bob2o2bob2o2b2o3bobo3b5o10b2o2b3o7b3o2b2o10b5o3bo
bo3b2o2b2obo2b2obo2bo$7bob2ob3o2b2o3b2ob2ob4ob2o14b4o9b4o14b2ob4ob2ob
2o3b2o2b3ob2obo$8bob6ob2ob5o2b2obo2b2o45b2o2bob2o2b5ob2ob6obo$9bo2bo2b
2ob3obo2b4obob4o43b4obob4o2bob3ob2o2bo2bo$10b3ob10obo2bo4b2o45b2o4bo2b
ob10ob3o$14b2o2b6o3bob3o51b3obo3b6o2b2o$11b7o4b3o65b3o4b7o$12bob2o4b2o
3b3o59b3o3b2o4b2obo$13b8o2b4o61b4o2b8o$21b2o69b2o!

also bump

Not quite as small as the one found by Layz Boi in 2021:

Code: Select all

x = 97, y = 22, rule = B23578/S14678
16b6o2b3o43b3o2b6o$9b4o2bo3b2ob3o2b2o3b2o29b2o3b2o4bob2o3bo2b4o$10b2ob
2ob2ob2o2b2ob2ob2o3bo27bob4ob2o4b3ob2ob2ob2o$10b3o2bo3b3obobob2ob3o2bo
25bo3bobo2bo3b3o2bo5b2o$9bob2ob2obo5bo2bo2bob6o2b4o11b4o2b5o2b4obo3bo
2b5obobo$10bo5b2o3b2ob2obo6bo5b2o13b2o4b5o4bobobo2b2obo2bo2bo$8bob2o4b
o2bo5bobob2obob5ob2o13b4ob2o5bo2bo2bob2obobob5obo$7bob2o2b3ob3obo4b2o
2b2ob2o2bob2o13b2obo3b3o8b4o2b3ob3ob2obo$6bo2bob3o3bobo2b3obob6ob5ob3o
2b5o2bobo2b3o4b2ob3ob4o8b2obo2bo$5bobo3b6ob2o2b2o6b3o4b6ob3o5bobob3obo
2b5o3bob3ob10o2bobo$3b2obo2bob2ob2ob2ob3o4bob3o4b3obobo2b2o2bo3bobob3o
b3ob2o2b4o2bobob3ob2ob3o3b2o$2bo2b3obo2bobob2obob4o2bo3b2o3bob3o2b2obo
bob4o3b3obob3o2b3obobob2o3bobobobo3bo2bo$3b2obob2o2bo3b2ob3o2bob3obo4b
obobobo7bo4bobo3b2o3b2ob2obobob3o3bobo4b3ob2o$bo3bo2bo9b6obobo2b2ob4ob
ob2o5bob6o3b4obobobob2obob3o2bobob4ob4o2b2o$3b2ob2o5bo2b2ob3o3b4ob2ob
5obobobobo2b3obo5b5o2b7o2b4obobob2o2bobob2obo$obo2b3obob2o3b3o2bo4b3o
2b7ob12obo3b3ob5obob3ob3obo4bob5obobo2b3o$6b3o2b3o2b4ob3ob6ob8ob14ob9o
bob8ob3ob2o3b10o$6bo4b2ob3ob3ob6o2b11ob26ob2ob2ob2ob2ob4o2bo7bo$o2bo5b
3o2b70o2b3o2bo$11bob75o$13bo73bo$8bo8bo3bo3bo3bo3bo3bo3bo3bo3bo3bo3bo
3bo3bo3bo3bo3bo3bo2bo!