B2i3ai4/S23 and related

[Rhombic]

...have been apgsearched and have sparked my interest, including what seem to be a failed replicator puffer, a 15c/50 spaceship, an xq28 spaceship and many high period oscillators.
A major contributor to the apgsearch so far has been Apple Bottom.
Check it here: https://catagolue.appspot.com/census/b2i3ai4s23/C1

B2i3ai47/S23 is the dry version of the rule and also has many interesting patterns, one of which is a xp184 rotary oscillator.
It also has a very frequent knightship puffer:

Code: Select all

x = 16, y = 16, rule = B2i3ai47/S23
bbbbooooboooooob$
bbbboobobobooobo$
obbooobooobbbboo$
obobbobboobobobb$
ooobbobobobboobb$
booooooboboboobb$
ooooooobbbbbbobb$
oobboobooboobbbb$
bbbobbooobbooobo$
oboobbbooobbbboo$
bobooooboooooooo$
ooobbbbbbbooooob$
oobobbobbobobobo$
obbbbooooobobooo$
boboboobbbooobob$
obooooobbbbbbbob!

[Apple Bottom]

A major contributor to the apgsearch so far has been Apple Bottom.

Always happy to help out searching interesting rules! I just wish I had your and drc's knack for identifying them myself.

[gameoflifeboy]

The p184 is a real reflectorless rotating oscillator! As far as I know, this is the second time a true one has been found in a 2-state isotropic CA.

Code: Select all

x = 11, y = 17, rule = B2i3ai47/S23
5b2o$5b2o$8b3o$8bobo$8b3o8$3o$obo$3o$4b2o$4b2o!

(EDIT: Actually the third posted on the forums. The first that I can find was this one.)

[Rhombic]

The p184 is a real reflectorless rotating oscillator! As far as I know, this is the second time a true one has been found in a 2-state isotropic CA.

Code: Select all

x = 11, y = 17, rule = B2i3ai47/S23
5b2o$5b2o$8b3o$8bobo$8b3o8$3o$obo$3o$4b2o$4b2o!

Oh wow, I had been entirely unaware at the time!
Interesting!

[Bullet51]

P148:

Code: Select all

x = 14, y = 5, rule = B2i3ai4_S23
2bo8bo$b2o8b2o$3o8b3o$b2o8b2o$2bo8bo!

Is it possible to get a P74 out of it?

[BlinkerSpawn]

P148:

Code: Select all

x = 14, y = 5, rule = B2i3ai4_S23
2bo8bo$b2o8b2o$3o8b3o$b2o8b2o$2bo8bo!

Is it possible to get a P74 out of it?

Sure:

Code: Select all

x = 14, y = 23, rule = B2i3ai4/S23
2b2o6b2o$2b2o6b2o8$2bo8bo$b2o8b2o$3o8b3o$b2o8b2o$2bo8bo8$2b2o6b2o$2b2o
6b2o!

[Goldtiger997]

B2i3ai47/S23 ... no spaceships have been discovered but there surely must be some

I had already searched this rule, but had not posted it. Here's what I had:

Code: Select all

x = 80, y = 89, rule = B2i3ai47/S23
66bo2bo4bo2bo$65b2o10b2o$66bo3bo2bo3bo2$65b2obob4obob2o$65b3ob2o2b2ob
3o$65b3o8b3o$65b3o8b3o$66b2o8b2o$67bob6obo$67bob2o2b2obo$69bo4bo$69bo
4bo$70bo2bo$71b2o$65b2ob2o4b2ob2o$65b4o6b4o$69b6o$70b4o$69bo4bo$71b2o$
70b4o$65b2o4b2o4b2o$65b3o8b3o$65b2o10b2o$71b2o$65bob10obo$64bo3b8o3bo$
64bo3bo6bo3bo$68bo6bo$65bo2bob4obo2bo$66b2obob2obob2o$71b2o$68b3o2b3o$
69bo4bo$70bo2bo$71b2o$65bo2b2o4b2o2bo$65bo4b4o4bo$66b2obo4bob2o$69bo4b
o$70bo2bo$70bo2bo$70bo2bo$65bobo2bo2bo2bobo$64bo2bo8bo2bo$65bobo8bobo$
66bob3o2b3obo$66b2o8b2o$64bo2bo8bo2bo$67b2ob4ob2o$67b3ob2ob3o$67b4o2b
4o$66b2obo4bob2o$68b2o4b2o$68b3o2b3o$68bobo2bobo$70bo2bo$71b2o$69b2o2b
2o$65b2ob8ob2o$66bo2b6o2bo$69bo4bo$70bo2bo$69b6o$69b6o2$43bo2b2o6b2o2b
o5bo2b2o6b2o2bo$44b5o4b5o7b5o4b5o$47b2o4b2o13b2o4b2o$45bob2o4b2obo9bob
2o4b2obo$45bobo2b2o2bobo9bobo2b2o2bobo$45bo2b2o2b2o2bo9bo2b2o2b2o2bo$
45bo10bo9bo10bo$45bo10bo9bo10bo$45bobobo2bobobo9bobobo2bobobo$46bo2bo
2bo2bo11bo2bo2bo2bo$46bo2bo2bo2bo11bo2bo2bo2bo$47bob4obo13bob4obo$49b
4o17b4o$29b2obo16b4o17b4o$13bo16bo2bo13bo6bo13bo6bo$12b2ob2o3b2o9bo3bo
8b2obo6bob2o7b2obo6bob2o$2bo9b2obo4b5o7b2o3b2o5b2obo6bob2o7b2obo6bob2o
$b2o10bob2o6b2o8b2o2bo10bob2obo15bob2obo$bobobo6bobo2b2o3bo12b2o11bob
2obo15bob2obo$o4bo7bo2b5o2bo8b3o$3obo8b3o2bo2b3o8b3o13bo4bo15bo4bo$49b
4o17b4o!

[wildmyron]

Here's a few more c/2 and c/3 ships. The c/2 as well as the asymmetric c/3 also work in B2i3ai4/S23

Code: Select all

x = 421, y = 50, rule = B2i3ai47/S23
10b3o47b3o47b3o47b3o41b3o49b3o3b3o41b3o3b3o41b3o3b3o41b3o3b3o$2b3o4bo
3bo4b3o31b3o4bo3bo4b3o31b3o4bo3bo4b3o31b3o4bo3bo4b3o33b3o48b2obo3bob2o
39b2obo3bob2o39b2obo3bob2o39b2obo3bob2o$bo3bo3bo3bo3bo3bo29bo3bo3bo3bo
3bo3bo29bo3bo3bo3bo3bo3bo29bo3bo3bo3bo3bo3bo30b2o49b4o3bo3b4o35b4o3bo
3b4o35b4o3bo3b4o35b4o3bo3b4o$bo3bo2bo2bo2bo2bo3bo29bo3bo2bo2bo2bo2bo3b
o29bo3bo2bo2bo2bo2bo3bo29bo3bo2bo2bo2bo2bo3bo29bo2b2o47b2o2b2obob2o2b
2o35b2o2b2obob2o2b2o35b2o2b2obob2o2b2o35b2o2b2obob2o2b2o$o2bo2bob2o3b
2obo2bo2bo27bo2bo2bob2o3b2obo2bo2bo27bo2bo2bob2o3b2obo2bo2bo27bo2bo2bo
b2o3b2obo2bo2bo27b2o3b2o51b5o45b5o45b5o45b5o$obo2b2ob2o3b2ob2o2bobo27b
obo2b2ob2o3b2ob2o2bobo27bobo2b2ob2o3b2ob2o2bobo27bobo2b2ob2o3b2ob2o2bo
bo30bo3bo49b7o43b7o43b7o43b7o$2bo2b2o9b2o2bo31bo2b2o9b2o2bo31bo2b2o9b
2o2bo31bo2b2o9b2o2bo31bo2bo2bo48bo5bo43bo5bo43bo5bo43bo5bo$o21bo27bo
21bo27bo21bo27bo21bo29bo3bob2o$obo4b3o3b3o4bobo27bobo4b3o3b3o4bobo27bo
bo4b3o3b3o4bobo27bobo4b3o3b3o4bobo28b3o$b2o3bo3bobo3bo3b2o29b2o3bo3bob
o3bo3b2o29b2o3bo3bobo3bo3b2o29b2o3bo3bobo3bo3b2o28bo54b2ob5ob2o39b2ob
5ob2o39b2ob5ob2o39b2ob5ob2o$2b2o2bo3b3o3bo2b2o31b2o2bo3b3o3bo2b2o31b2o
2bo3b3o3bo2b2o31b2o2bo3b3o3bo2b2o29bo3b3o46bob2obobobob2obo35bob2obobo
bob2obo35bob2obobobob2obo35bob2obobobob2obo$bo3bo11bo3bo29bo3bo11bo3bo
29bo3bo11bo3bo29bo3bo11bo3bo31b2o2bo44b3o3bo3bo3b3o33b3o3bo3bo3b3o33b
3o3bo3bo3b3o33b3o3bo3bo3b3o$bo3bobobo3bobobo3bo29bo3bobobo3bobobo3bo
29bo3bobobo3bobobo3bo29bo3bobobo3bobobo3bo31b2o2b2o41b3o3bobobobobo3b
3o29b3o3bobobobobo3b3o29b3o3bobobobobo3b3o29b3o3bobobobobo3b3o$2b2o3bo
bo3bobo3b2o31b2o3bobo3bobo3b2o31b2o3bobo3bobo3b2o31b2o3bobo3bobo3b2o
79b2o2bob3o3b3obo2b2o29b2o2bob3o3b3obo2b2o29b2o2bob3o3b3obo2b2o29b2o2b
ob3o3b3obo2b2o$255b3ob3ob3o39b3ob3ob3o39b3ob3ob3o39b3ob3ob3o$6bob2o3b
2obo39bob2o3b2obo39bob2o3b2obo39bob2o3b2obo88bo2bobobo2bo39bo2bobobo2b
o39bo2bobobo2bo39bo2bobobo2bo$7b3o3b3o41b9o41b3o3b3o41b9o88bo3bobobo3b
o37bo3bobobo3bo37bo3bobobo3bo37bo3bobobo3bo$8bo5bo43b3ob3o37bo5bo5bo5b
o37b3ob3o88bo3b7o3bo35bo3b7o3bo35bo3b7o3bo35bo3b7o3bo$60bobo38b3ob3o7b
3ob3o38bobo90bobo4bo4bobo35bobo4bo4bobo35bobo4bo4bobo35bobo4bo4bobo$
101bob2o13b2obo134bo7bo$101b2o2bobo7bobo2b2o133b11o41b7o43b7o43b7o$60b
obo37bo2bo15bo2bo37bobo91bo3b5o3bo39bob5obo41bob5obo41bob5obo$61bo38bo
3bo13bo3bo38bo91bo2bob5obo2bo36b2o3b3o3b2o37b2o3b3o3b2o37b2o3b3o3b2o$
101b2obo13bob2o34b3o5b3o85bo2bo9bo2bo34bo5bobo5bo35bo5bobo5bo35bo5bobo
5bo$155bo2b2obob2o2bo83bo2bo11bo2bo32bo2bo3b3o3bo2bo33bo2bo3b3o3bo2bo
33bo2bo3b3o3bo2bo$155bo2bob3obo2bo83bobo3b7o3bobo31bo2bo2b2o3b2o2bo2bo
31bo2bo2b2o3b2o2bo2bo31bo2bo2b2o3b2o2bo2bo$152bob2o2bo2bo2bo2b2obo85b
2ob3ob2o35bo2bo3bo2bo2bo3bo2bo29bo2bo3bo2bo2bo3bo2bo29bo2bo3bo2bo2bo3b
o2bo$151b3o15b3o84bobo3bobo35bobo5bo3bo5bobo29bobo5bo3bo5bobo29bobo5bo
3bo5bobo$152b2o2bobo5bobo2b2o85bobobobobo$256bo7bo42b7o43b7o43b7o$150b
3o17b3o134bo5bo43bo5bo43bo5bo$150bobo17bobo133b2ob3ob2o41b2ob3ob2o41b
2ob3ob2o$153bo15bo139b3o47b3o47b3o$151bo19bo136bo3bo45bo3bo45bo3bo$
150b2obo15bob2o135bo3bo45bo3bo45bo3bo$150b2ob2o6bo6b2ob2o132b2o7b2o39b
2o7b2o39b2o7b2o$151bobo6b3o6bobo132bo2b2obob2o2bo37bo2b2obob2o2bo37bo
2b2obob2o2bo$153bo5b5o5bo133bo4bo3bo4bo35bo4bo3bo4bo35bo4bo3bo4bo$151b
2o5bo2bo2bo5b2o131bobo9bobo35bobo9bobo35bobo9bobo$152b2o4bob3obo4b2o$
154bo3bob3obo3bo184bo13bo37bo9bo$153b2o3bobobobo3b2o181b2ob2o9b2ob2o
33b2ob2o5b2ob2o$152bo2bo11bo2bo180bo3bo9bo3bo33bo3bo5bo3bo$155bobo2b3o
2bobo182b2obob2o7b2obob2o31b2obob2o3b2obob2o$155bob3o3b3obo182b2o3b2o
7b2o3b2o31b2o3b2o3b2o3b2o$152bob4o2b3o2b4obo$153bo5b5o5bo$158bob3obo$
154bo2bo7bo2bo$155b2o9b2o!

[Rhombic]

The diagonal c/4, Goldtiger's asymmetric c/2 and the asymmetric c/3 will have to be the first ones to turn up, surely.