Gun Discussion Thread

[GUYTU6J]

...
Unfortunately, I couldn't get it to work with Speed Tunnel, since one of the gliders emitted hits the beehive push catalyst. ...

How about adding a Fx77 like this?

Code: Select all

x = 172, y = 67, rule = B3/S23
2bo$obo$b2o13$17bo69b2o$18bo68bo$16b3o65b2obo$84bobo3$41b2ob2o$42bobo
58bo5b2o3b2o$37b2obo5bob2o52bo5bob2o3b2o$36bobob2o3b2obobo9bo40b2o5bob
2o2bo14bo5b2o3b2o$35bo6bobo6bo8b3o39b2o3b2o19bo5bob2o3b2o$35b7o3b7o11b
o39bo3bo19b2o5bob2o2bo14bo5b2o3b2o$62b2o11b2o10bo3bo36b2o3b2o19bo5bob
2o3b2o$37b3o7b3o25b2o9b2o3b2o36bo3bo19b2o5bob2o2bo$36bo2bo3bo3bo2bo15b
3o11bo2b2obo5b2o19bo3bo36b2o3b2o$36b2o4bobo4b2o13b2o12b2o3b2obo5bo19b
2o3b2o36bo3bo$33bo8bobo19b2obob2o8b2o3b2o5bo14bo2b2obo5b2o19bo3bo$31bo
bo8bobo19b4o2bo33b2o3b2obo5bo19b2o3b2o$32b2o8bobo20bo4bo5b2o27b2o3b2o
5bo14bo2b2obo5b2o19bo3bo$41b2ob2o20b4o6bobo51b2o3b2obo5bo19b2o3b2o$42b
obo15bobo3b2o8bo11b2o41b2o3b2o5bo14bo2b2obo5b2o$39b2ob2ob2o3b2o8b2o27b
o11b2o53b2o3b2obo5bo$39b2ob2ob2o3b2o9bo24b3o13bo11b2o41b2o3b2o5bo$39b
2obobo2bo38bo12b3o13bo$41bo3b2o52bo12b3o$112bo$62b2o$58bo3b2o$41b2o5b
2o7bobo16b2o$40bo2bo4bobo5bobo17bobo$36b2o3bobo6bo5bo21bo$32b2obobo4bo
7b2o3b2o21b2o$33bobo9b2o$32bo2b2o8bo$33b2o11b3o42b3o$35b2o11bo42bo$35b
o56bo$36bo$35b2o11$107b2o$107bobo$107bo!
#C [[ STOP 62 ]]

(The 2-glider annihilation is the first thing that worked, there may be other possibilities)

[glider_rider]

Strictly volatile p86 gun:

Code: Select all

x = 143, y = 90, rule = B3/S23
55b2o$54bo2bo$55b2o2$86b2o$85bo2bo$86b2o2$50b3o$49bo3bo$54bo2$49b2o3bo
35b3o$51b3o35bo3bo$88bo2$88bo3b2o$89b3o5$50b2o$50b2o2$4bo48bo$4bo48bo
37b2o$b4o48bo37b2o$o2bo$o28b2o14b2o8b3o31bo48bo$o2bo23b3obo13b2o42bo
48bo$b2o23b2o15b2o44bo48b4o$25b2o15bo2bo2bo3b3o84bo2bo$26b2o14bobo3bo
2bo33b3o8b2o14b2o28bo$30bo12bo3bo3bo44b2o13bob3o23bo2bo$30bo17b3o47b2o
15b2o23b2o$15bo30b2o40b3o3bo2bo2bo15b2o$16b2o73bo2bo3bobo14b2o$15b2o
74bo3bo3bo12bo$92b3o17bo$95b2o30bo$125b2o$126b2o7$34b2o$31b3o17bo$30bo
3bo3bo12bo$30bo2bo3bobo14b2o$27b3o3bo2bo2bo15b2o50b2o$37b2o15b2o35bo
17b3o$35b2o13bob3o36bo12bo3bo3bo$24b3o8b2o14b2o34b2o14bobo3bo2bo$86b2o
15bo2bo2bo3b3o$28bo58b2o15b2o$28bo59b3obo13b2o$28bo61b2o14b2o8b3o2$30b
2o82bo$30b2o82bo$114bo2$111b2o$111b2o5$28b3o$27bo3b2o2$27bo$28bo3bo79b
3o$29b3o78b2o3bo2$115bo$110bo3bo$111b3o2$25b2o$24bo2bo$25b2o2$116b2o$
115bo2bo$116b2o!

[iNoMed]

Here's a 31x40 QBless p30 gun via R pentomino hassler, using the trusty periodic R-to-G conversion of RF29P:

Code: Select all

x = 28, y = 39, rule = B3/S23
13bo$12b3o3$12b3o2$12bobo$12bobo2$bo10b3o$bo2$bo10b3o$obo10bo$20bo$3o
17bobo$19bobo$7b2o12bo$3o5bob2o$12bo$obo9bo$bo8b3o2$bo$bo$17b2o$4b2o
10bo2bo$3bobo$3bo7b2o$2b2o7bo6b2o$12b3obob2o$14bob5o$20b2o$19bo2bo3b2o
$22bobo2bo$22bob2o$20bobobo$20b2o2bo$24b2o!

[qqd]

I was thinking, why not make a true p14 glider gun from two copies of the p14 hassler found by mvr?

Code: Select all

x = 32, y = 8, rule = B3/S23
17bo7b2o$2o15b2o5bobo$bo15bob2o3b2o$bobo15b2o7b2o$2b2o7b2o15bobo$6b2o
3b2obo15bo$5bobo5b2o15b2o$5b2o7bo!

Unfortunately, I didn't find any useful reaction apart from a pi factory by applying a domino spark

Code: Select all

x = 32, y = 16, rule = B3/S23
18b2o2$16b3o$15bo$14b2o3bo$12b3obo8b2o$2o9b2obobobo4bo2bo$bo8bobo2bo9b
o$bobo8b2o5bo5bo2b2o$2b2o2bo5bo5b2o8bobo$6bo9bo2bobo8bo$5bo2bo4bobobob
2o9b2o$5b2o8bob3o$12bo3b2o$16bo$13b3o!

[GUYTU6J]

Discovery
Five 3-engine p45 gliderless LWSS guns, minimum bounding box 51×39

Code: Select all

x = 332, y = 48, rule = LifeHistory
301.2A5.2B$80.2B5.2A55.2A5.2B148.A.A2.BA2B$20.2A5.2B51.4B2.A.A55.A.A
2.4B57.2B5.2A83.A3BABA2B$20.A.A2.4B50.8BA57.A8B56.4B2.A.A78.B6.2BAB2A
B$21.A8B49.7B6.B47.B6.7B55.8BA78.3B5.3B2AB$16.B6.7B50.6B5.3B45.3A5.6B
56.7B6.A73.3A4.6B$15.3B5.6B52.6B4.BAB45.3B4.6B58.6B5.BAB71.A3BA3.B3A
3B$15.3A4.6B52.5B2A3.B3AB43.A3BA3.7B58.6B4.3B71.A3BA3.B3A3B$14.A3BA3.
2A5B51.5B2A3.5A43.A3BA3.7B57.7B3.2BA2B69.2B3A2B2.2BA3B$14.A3BA3.7B52.
3B2AB2.7B41.7B2.6B58.7B3.BABAB69.7B2.6B.2B$13.2B3A2B2.6B50.2B.3B2AB2.
7B41.2B3A2B2.3BA2B.2B56.3BA2B2.7B67.18B2A$13.7B2.3BA2B.2B46.2A4BABABA
9B39.12BABA3B2A52.2B.2BABAB2.2B3A2B67.16B.B2A$12.11BABA4B2A45.2AB.2BA
2BA10B39.10B2A4B.B2A51.2A3BA14B67.7B.3BA3B2.B$12.13BA2B.B2A46.B2.3BAB
2A.7B41.2B3A2B.A6B2.B52.2AB.2BABA11B67.2B3A5B3A3B$13.7B.A2B2A2B2.B49.
4B3A9B41.12BA3B55.B2.3BA3B.2B3A2B69.A3BA.3B3A3B$13.2B3A3B2ABA4B51.9B.
5A43.A3BA.B4A4B57.16B69.A3BA3.6B$14.A3BA.3BA5B10.2B40.6B3.B3AB8.2B33.
A3BA3.6B15.2B41.9B.BABAB6.2B63.3A4.3BABA$14.A3BA3.6B9.6B38.6B4.BAB7.
6B32.3B4.6B13.6B40.6B3.2BA2B4.6B61.3B4.3BA2BA10.2A$15.3A4.6B7.2A6B2A
35.7B4.3B5.2A6B2A30.3A4.7B10.2A6B2A38.6B4.3B3.2A6B2A60.B6.BA2BAB9.B2A
B$15.3B4.7B4.A4BA2BA4BA33.7B5.B4.A4BA2BA4BA29.B6.6B8.A4BA2BA4BA35.7B
4.BAB.A4BA2BA4BA64.B2AB2A11.3B5.2B$16.B6.6B3.BA4BA2BA4BAB32.7B9.BA4BA
2BA4BAB34.6B8.BA4BA2BA4BAB34.6B6.A.BA4BA2BA4BAB64.BABAB4.2B2.2B2.B2.
2B.5B$10.2A10.6B5.A4BA2BA4BA27.2A4.7B10.A4BA2BA4BA36.5B9.A4BA2BA4BA
36.6B8.A4BA2BA4BA54.2A9.2BA3B.5B3A5B3A5B$9.B2AB10.5B7.2A6B2A28.B2AB4.
6B12.2A6B2A29.2A7.5B11.2A6B2A38.5B11.2A6B2A55.B2AB8.5B.5B2A3BABA3B2A
3B$2.2B5.3B11.4B10.6B23.2B5.3B5.6B14.6B30.B2AB6.5B13.6B29.2A9.5B13.6B
50.2B5.3B10.9B2A2BABABABA2B2A2B$5B.2B2.B2.2B2.2B4.5B8.2B.2B8.2A13.5B.
2B2.B2.2B2.4B.4B10.2B.2B8.2A15.2B5.3B8.6B10.2B.2B8.2A20.B2AB8.7B10.2B
.2B8.2A40.3BAB.2B2.B2.2B2.AB3.10BA11BA2B$21B.5B9.5B7.A.A13.27B9.5B7.A
.A13.5B.2B2.B2.2B2.2B.7B9.5B7.A.A13.2B5.3B9.8B9.5B7.A.A40.2B3A11BAB2A
13B2A2BABA2B2A3B$.27B3.A.13B2.BA15.16B2A9B3.A.13B2.BA14.28B3.A.13B2.B
A12.5B.2B2.B2.2B2.2B3.8B3.A.13B2.BA42.A2BA14B2A6B2.B.6BABA4B2.BA$.8B
4A9B3A5BA2BA3BA5BA5B16.8B4A9B3A5BA2BA3BA5BA5B16.21B3A5BA2BA3BA5BA5B
13.24B3A5BA2BA3BA5BA5B43.B2A2B2A5B2AB2A3BA5B7.5B7.A.A$2.10B2A8BABA4BA
3B4AB2AB2A2B2A2B17.10B2A8BABA4BA3B4AB2AB2A2B2A2B16.9B2A10BABA4BA3B4AB
2AB2A2B2A2B14.23BABA4BA3B4AB2AB2A2B2A2B44.4B3A3B3A3B3A6B7.2B.2B8.2A$
2.4BA3BA3BA7B3A4BA3BAB3A5B2A2B2AB16.4BA3BA3BA7B3A4BA3BAB3A5B2A2B2AB
16.6B2A2B2A8B3A4BA3BAB3A5B2A2B2AB13.8B2A13B3A4BA3BAB3A5B2A2B2AB43.4B
2A5B2A4BA7B8.6B$.AB2.BA6BA4B.8B.BA5B2A7BA4BA15.AB2.BA6BA4B.8B.BA5B2A
7BA4BA16.4B5A2BA13B.BA5B2A7BA4BA14.8BA2B2A14B.BA5B2A7BA4BA42.AB2.13B.
B2.5B6.10B$A.A7.2B2AB5.6B4.A17B2AB13.A.A7.2B2AB5.6B4.A17B2AB14.AB2.B
2A3B3A4B.7B4.A17B2AB13.8B2AB3A12B4.A17B2AB40.A.A7.5B7.5B4.A2B2A4B2A2B
A$2A8.2B.2B5.5B7.BA2.2B2.B2.2B.ABA2B13.2A8.2B.2B5.5B7.BA2.2B2.B2.2B.A
BA2B13.A.A7.ABA2B5.5B7.BA2.2B2.B2.2B.ABA2B12.AB2.6B2AB2A2B.B2.5B7.BA
2.2B2.B2.2B.ABA2B40.2A8.2B.2B7.5B3.A3B3A2B3A3BA$8.6B6.5B14.3B5.AB23.
6B6.5B14.3B5.AB15.2A8.2B.2B5.5B14.3B5.AB13.A.A7.3BAB7.5B14.3B5.AB50.
6B8.5B4.A2B2A4B2A2BA$6.2A6B2A4.5B13.B2AB28.2A6B2A4.5B13.B2AB30.6B6.5B
13.B2AB20.2A8.2B.2B7.5B13.B2AB55.2A6B2A6.5B6.10B$4.BA2BA4BA2BAB2.5B
14.2A27.BA2BA4BA2BAB2.5B14.2A29.BA6BAB4.5B14.2A29.6B8.5B14.2A54.BA2BA
4BA2BAB4.5B8.6B$3.2BA2BA4BA2BA2B.5B42.2BA2BA4BA2BA2B.5B43.2B2A6B2A2B
2.5B43.10B6.5B69.2BA2BA4BA2BA2B3.ABA2B10.2B$4.BA2BA4BA2BAB2.5B43.BA2B
A4BA2BAB2.5B42.2B3A6B3A2B.5B41.BA2BA4BA2BAB4.5B70.BA2BA4BA2BAB4.3BAB$
6.2A6B2A4.5B45.2A6B2A4.5B43.2B2A6B2A2B2.5B40.3A2B6A2B3A3.5B72.2A6B2A
6.3BAB$8.6B6.5B47.6B6.5B45.BA6BAB4.5B41.BA2BA4BA2BAB4.5B74.6B8.A2BA$
10.2B8.5B49.2B8.5B47.6B6.5B43.10B6.5B76.2B11.3A$20.5B59.5B49.2B8.5B
45.6B8.5B$20.5B59.5B59.5B47.2B10.5B$20.2B2AB59.2B2AB59.2B2AB59.2B2AB$
20.2B3A59.2B3A59.2B3A59.2B3A$20.BAB2A59.BAB2A59.BAB2A59.BAB2A$21.3A
61.3A61.3A61.3A$22.A63.A63.A63.A!

A 2-engine p45 gliderless HWSS gun that does not involve a pi-heptomino, bounding box 42×32 (may be reduced with some small spark suppressor)

Code: Select all

x = 42, y = 32, rule = LifeHistory
10.2A12.A$9.B2AB10.3A$2.2B5.3B10.BAB2A$5B.2B2.B2.2B2.2B3.2B3A$24B3A$.
9BA13B3AB$.8B3A12B2A2B$2.6B2AB2A15B4.2A$2.27B2.A.A$.AB2.13B.B2.10BA$A
.A7.5B9.7B6.A$2A8.2B.2B10.6B5.BAB$8.6B12.6B4.3A$6.10B9.7B3.5B$4.4BA4B
A4B7.7B3.5B$3.3B2AB4AB2A3B7.6B2.2B3A2B$4.4BA4BA4B5.2B.2BA3B2.3BA3B$6.
10B6.2A4B3A6BA4B$8.6B8.2AB.4B2A5BA4B$10.2B11.B2.5BAB.3BA3B$25.4B2ABA
3B3A2B$25.4B3A2B.5B$26.4B2A3.5B$26.6B4.3A$25.7B4.BAB$25.6B6.A$26.6B$
26.5B$26.5B$26.5B$26.4B$27.2B!

Method
I used the following gencols inputs in Command Prompt:

Code: Select all

D:\gencols-pt-002>gencols.exe -rule B3/S23 -pat left.life up.life -nph 45 -tc 2 46 -gen 46 -nosynch -del1 -del2 -filt ap > p45.list

D:\gencols-pt-002>gencols.exe -rule B3/S23 -pat right.life p45.list -nph 45 -tc 2 46 -gen 46 -nosynch -del1 -del2 -filt s | makematrix.exe > guns.txt

D:\gencols-pt-002>gencols.exe -rule B3/S23 -pat left.life up2.life -nph 45 -tc 2 46 -gen 46 -nosynch -del1 -del2 -filt 2 | makematrix.exe > p45-p2.txt

D:\gencols-pt-002>gencols.exe -rule B3/S23 -pat left.life up.life -nph 45 -tc 2 46 -gen 46 -nosynch -del1 -del2 -filt 2 | makematrix.exe > p45-p2-1.txt

First one built a list of interactions between left.life

Code: Select all

..........**
..........**
.
.
.
..........*
.........***
........**.**
.
.*
*.*
**
.
.
........*....*
......**.****.**
........*....*

and up.life

Code: Select all

..........**
.........*.*
..........*
.
.
.
...............*
...............*
.......*......*.*
......**.......*
**...**........*
**....**.......*
.......*.......*
..............*.*
...............*
...............*

Second one searched spaceship-emitting reactions over the course of a few days. None of the results work, but a TL + spark → LWSS reaction was noted (which is actually known). Last two commands found combinations that give a p2 object/constellation, of which four results have appropriate clearance for the traffic light reaction.
The next day, in an attempt to repeat the procedure with other orientations, I had

Code: Select all

D:\gencols-pt-002> gencols.exe -rule B3/S23 -pat left.life up.life -nph 45 -tc 2 46 -gen 46 -nosynch -del1 -del2 -filt s | makematrix.exe -space 64 > guns.txt

which unexpectedly yields a single result of the HWSS gun.
Limitation
I know that Ivan Fomichev posted an improved version on his github, but my gencols is Paul Tooke's version compiled some time before due to its isotropic non-totalistic compatibility. No combination of both is apparently available, nor is there an active maintainer taking over the gencols code.
The -nph input parameter is for phase differences between pattern 2 and pattern 1. For periodic patterns it can be simply set as period, but here one of patterns is the list of interactions between two p45 pi-heptomino hasslers, which is not periodic. -nph should be set a bit higher like 60, but then the search may consume a large amount of memory.
...
Using a hammer reaction, a p45 gliderless MWSS gun can be made. No 2- or 3-engine p45 gliderless MWSS gun has been discovered, unfortunately.
No experiment between two p45 and a pentadecathlon has been done.

[vivi]

smallest p24 gun, which is also the second smallest gun in general at 420 cells, found by cvojan (using eye of sauron) and reduced by me

Code: Select all

x = 20, y = 21, rule = B3/S23
18bo$16bo2bo$16bo2bo$17bo$5b2o$6bo$6bobo$7b2o2$12b3o$11bo3bo$10bo5bo$
5b2o3bo5bo$5bo2bobo5bo$11bo$12bo3bo$5bob2o7bo$2o2bobo8bo$o4bo10b3o$4bo
13bo$bo2bo!

[Period1GliderGun]

smallest p24 gun, which is also the second smallest gun in general at 420 cells, found by cvojan (using eye of sauron) and reduced by me

Code: Select all

x = 20, y = 21, rule = B3/S23
18bo$16bo2bo$16bo2bo$17bo$5b2o$6bo$6bobo$7b2o2$12b3o$11bo3bo$10bo5bo$
5b2o3bo5bo$5bo2bobo5bo$11bo$12bo3bo$5bob2o7bo$2o2bobo8bo$o4bo10b3o$4bo
13bo$bo2bo!

Don't you mean 42 cells?

[dvgrn]

Don't you mean 42 cells?

Where do you see 42 cells? The minimum population seems to be 44, not 42.

"420" is the number of cells in a 20x21 bounding box, and bounding box is the metric by which we measure record-breaking glider guns. This one has now been reduced to 400 cells, 20x20 (second to last entry).

[Period1GliderGun]

Don't you mean 42 cells?

Where do you see 42 cells? The minimum population seems to be 44, not 42.

"420" is the number of cells in a 20x21 bounding box, and bounding box is the metric by which we measure record-breaking glider guns. This one has now been reduced to 400 cells, 20x20 (second to last entry).

Apologies. I've been spending too much time in the OCA forum.

[EvinZL]

p140 glider gun, by ljkiernan1, reduced by me

Code: Select all

x = 43, y = 45, rule = B3/S23
19b2o$20bo$20bobo10b2o$21b2o10b2o9$28bo$27b3o$27bob2o$7b2o21bo$2o6b3o
19b3o$o5bo4bo$b3obob2obo$3bobobobo$4b2ob2o$6b3o$2bo3b3o$bobo2b3o$bobo
2b3o$2bo3b3o$6b3o$4b2ob2o$3bobobobo$b3obob2obo$o5bo4bo$2o6b3o$7b2o5$
28bo7b2o$11b2o15b2o5bobo$12bo15bob2o3b2o$12bobo15b2o7b2o$13b2o7b2o15bo
bo$17b2o3b2obo15bo$16bobo5b2o15b2o$16b2o7bo!

[googleplex]

Code: Select all

[quote=EvinZL post_id=151735 time=1664847393 user_id=2041]
p140 glider gun, by ljkiernan1, reduced by me
[code]
snip

[/quote][/code]

obvious p280 gun:

Code: Select all

x = 43, y = 49, rule = B3/S23
19b2o$20bo$20bobo10b2o$21b2o10b2o9$27b3o$27bo2bo$27bo2bo$7b2o$2o6b3o
19b2o$o5bo4bo19bo$b3obob4o27b2o$3bobo3bo28b2o$4b2o3bo$9bo$2bo2bo3bo27b
ob2o$bobobo3bo27bobo$bobobo3bo28bo$2bo2bo3bo28b2o$9bo28b2o$4b2o3bo28b
2o$3bobo3bo$b3obob4o$o5bo4bo$2o6b3o$7b2o3$42bo$40bobo$28b2o6b2o3b2o$
11b2o14b2obo4bobo$12bo15bo2bo3b2o$12bobo14b3o7b2o$13b2o7b3o14bobo$17b
2o3bo2bo15bo$16bobo4bob2o14b2o$16b2o6b2o!

Additionally, I believe it may be possible to shave off another column if that sparker can be reduced.

[rattlesnake]

Why are glider guns in B3/S23 ranked with bounding box?

[confocaloid]

Why are glider guns in B3/S23 ranked with bounding box?

There was a recent discussion, this post and several posts on the same page.

[simeks]

Not breaking any records with this one, but unusual parallel G9 outputs at p192:

Code: Select all

x = 44, y = 44, rule = LifeHistory
.A$.3A13.2A$4.A9.2A2.A$3.2A8.B2A.A$3.5B5.3B.2A$5.3BA3.B3A.A$3.5BA4B3A
.A$2.3B2A3B2.A.B.2A.A$2.2BABA3B3.2A3.2A22.A$2.2BABABAB5.2A8.2A13.3A$
4.BA3BAB4.A9.A2.2A9.A$3.6BAB6.A8.A.A2B8.2A$3.2BA2BA.B2A3.2A7.2A.BAB5.
5B$3.2B3AB.BA.A12.A.4B3.4B$3.6B4.A12.A.ABA5B3A2B$4.5B4.2A.2A6.A.2A.A.
A2.2BABA3B$2.B.5B5.A.2A6.2A3.2A3.BA2BA3B$B3A2.4B4.A12.2A5.2B2A4B$3AB
3.4B4.3A10.A4.7B$.B6.3BA6.A7.A6.8B$9.ABA3B.B2A7.2A3.2AB.6B$10.2A3B.2B
3.2A7.A.AB.6B$11.8B.B2AB6.A4.6B$11.8B2.2B6.2A4.BA3B$10.10B2.2B11.A4B.
B$11.6BA7B.B7.B3A2.3AB$11.4BABA12B2.5B3.B3A$12.4B2A13B.4B6.B$14.21B$
17.13BA4B$17.12BA3B$16.7BA5B3AB$16.5BABA8B$14.8B2A8B$14.16B$14.10BA5B
$14.9BA5B$13.10B3A2B$12.16B$11.4B2.9B$10.4B4.7B$9.4B5.A5B$8.4B5.A6B$
7.4B5.B3A3B!

[cvojan]

Here is a partial p35 gun.

Code: Select all

x = 155, y = 31, rule = B3/S23
63b2obobo2b2o$35b2o4bob2o13b2o3b2ob2obo2bo$31b2o2bo4bob2obob2obo7bobo
8b3o6bo$5b2o15b2o7bobobo4bo4bobob2o9bo2b2ob2o8b3o2b2o$6bo15bo10bobob2o
bob2obo13b2obobobob2o5bo6bo24b2o12b2ob2ob2o$6bobo11bobo9b2obo2bobo2bob
2o13bobobobobobo4bo2b4o20b2o2bo2bo9bo2bob2obo3b2o$7b2o4bo6b2o8b2obo4bo
bo2bobobo11b4o3bobo3bob2obo2bo3b2o11b2o2bobo2b2o2bob2o3b4obo5bo2bo2b2o
3bo$12bobo10bo3b3o2bobob4obo3bo3b2ob3obo4bo3b2o3b2o3b2obobo2bo6b2o2bob
4o6b3obobobo5bob3obo3bobobo2b3o$11b2ob2o9bo2b2obo2bobo3bo3bo3b5o4bob2o
3bobo5bo4bo3b2obo6bob4o5b6o4bobob2o2b2obobobob4o3bo5bo5b2o$12bobo9bob
2obo2b2o3b4o4bo2bo3bobo2b2obobo6bo3b2obobo11bo7b3o7b3o3bo2bo2bo2bo2bo
2bo3b3ob5o6bo$2ob2o8bo7b2o6bo2b2o2bo2bobo3b3ob3o10bo5b6obo2b4o4bo3bob
6o5bob2o5bo2b4o3b2ob2o2bobo3bobo4b3o5bob2o$o21bob2o3bo13bo2bobo5b2o3b
2obo4b2o3b3o2b2obo6bobo7bo7b2o4b2o4b2o2b2o3bo6b2o2b3o2bo2bo3b3obo$b2o
2bo16bo8bob2ob4o2bo3bo2b2o3b2obo2b2obobo2b2o3b2o2bo4bob2o2b2obobo3b3o
7bobobo3b2o2b3o2bob3o5b2obo2bobob2o2bo$2b3o17b2obo3b2o4b2ob3o5b3o3b2o
9bobo2b2o3bo2bob2o2bo2b2ob2obobo3bo2bob3obob2o3bo5bo7bo2b2obobobo3b2o
3b4ob2o$2b3o17bo6bo7bo10bo2bo2b10o2b3o4b5o3bo10bo4bob2o5bo4b3o6b2o2bob
o2b2o2bo8bo2bo3b2o2bo$b2o2bo12b2o2b2o2b2obo3bo3bo6b2ob2o3b2o10b2o28b2o
bob3o4bo7b3o6bo3bo2bo2b3o6bo9bobo$o21bo6bo7bo10bo2bo2b10o2b3o4b5o3bo
10bo4bob2o5bo4b3o6b2o2bobo2b2o2bo8bo2bo3b2o2bo$2ob2o17b2obo3b2o4b2ob3o
5b3o3b2o9bobo2b2o3bo2bob2o2bo2b2ob2obobo3bo2bob3obob2o3bo5bo7bo2b2obob
obo3b2o3b4ob2o$22bo8bob2ob4o2bo3bo2b2o3b2obo2b2obobo2b2o3b2o2bo4bob2o
2b2obobo3b3o7bobobo3b2o2b3o2bob3o5b2obo2bobob2o2bo$22bob2o3bo13bo2bobo
5b2o3b2obo4b2o3b3o2b2obo6bobo7bo7b2o4b2o4b2o2b2o3bo6b2o2b3o2bo2bo3b3ob
o$21b2o6bo2b2o2bo2bobo3b3ob3o10bo5b6obo2b4o4bo3bob6o5bob2o5bo2b4o3b2ob
2o2bobo3bobo4b3o5bob2o$24bob2obo2b2o3b4o4bo2bo3bobo2b2obobo6bo3b2obobo
11bo7b3o7b3o3bo2bo2bo2bo2bo2bo3b3ob5o6bo$25bo2b2obo2bobo3bo3bo3b5o4bob
2o3bobo5bo4bo3b2obo6bob4o5b6o4bobob2o2b2obobobob4o3bo5bo5b2o$25bo3b3o
2bobob4obo3bo3b2ob3obo4bo3b2o3b2o3b2obobo2bo6b2o2bob4o6b3obobobo5bob3o
bo3bobobo2b3o$30b2obo4bobo2bobobo11b4o3bobo3bob2obo2bo3b2o11b2o2bobo2b
2o2bob2o3b4obo5bo2bo2b2o3bo$32b2obo2bobo2bob2o13bobobobobobo4bo2b4o20b
2o2bo2bo9bo2bob2obo3b2o$33bobob2obob2obo13b2obobobob2o5bo6bo24b2o12b2o
b2ob2o$31bobobo4bo4bobob2o9bo2b2ob2o8b3o2b2o$31b2o2bo4bob2obob2obo7bob
o8b3o6bo$35b2o4bob2o13b2o3b2ob2obo2bo$63b2obobo2b2o!

[googleplex]

From H4_+1 on catagolue, a new, 2 barreled p30 gun with only 2QBs!

Code: Select all

x = 15, y = 31, rule = B3/S23
3b2o5b2o$3b2o5b2o4$2b3o5b3o$2b3o5b3o$bo3bo3bo3bo$o5bobo5bo$bo3bo3bo3b
o$2b3o5b3o11$3b2o5b2o$2b3o5b3o$3b2o5b2o3$5b2ob2o$6bobo$4bobobobo$4b2o
3b2o!

[Jormungant]

From H4_+1 on catagolue, a new, 2 barreled p30 gun with only 2 GGGs!

Code: Select all

x = 15, y = 31, rule = B3/S23
3b2o5b2o$3b2o5b2o4$2b3o5b3o$2b3o5b3o$bo3bo3bo3bo$o5bobo5bo$bo3bo3bo3b
o$2b3o5b3o11$3b2o5b2o$2b3o5b3o$3b2o5b2o3$5b2ob2o$6bobo$4bobobobo$4b2o
3b2o!

Interesting! One can also make another double barrel with the same idea (but it is bigger)

Code: Select all

x = 25, y = 38, rule = B3/S23
9b2o3b2o$9bobobobo$11bobo$11bobo$7bo3bobo3bo2$5bo5bobo5bo$5bo5bobo5bo
$5bo5bobo5bo2$7b3o5b3o$bo$obo$2o2$7b3o5b3o2$7bobo5bobo$6b5o3b5o$5b2o3b
2ob2o3b2o$5b2o3b2ob2o3b2o3$6bobobo3bobobo$5b2obob2ob2obob2o3b2o$5bo2b
o2bobo2bo2bo2bobo$5b3o9b3o3bo$8bo2bobo2bo$8bobo3bobo$8b2o5b2o$5b3o9b3o
$5bo13bo3$10b2ob2o$11bobo$9bobobobo$9b2o3b2o!

[iNoMed]

p30 single QB gun: (edit to clarify that this is based on the semi-natural four-fold variant that showed up in D4_+1)

Code: Select all

snip

The left side stabilization was pulled in a few rows by iNoMed. It's 7 rows slimmer than GGG, but much taller.

Quick reminder that the "new" p30 gun is actually a known build under a single-QB guise...

[yoleo]

Possible candidate for a smaller guntrue 64:

Code: Select all

x = 32, y = 42, rule = B3/S23
$9b2o$6bo$5bobo2b2o$3bobob3o2bo$3bo2b6o$6b2ob2o11bo3bo$5b6o2bo7bobobob
o$4bo2b3obobo8b2ob2o$5b2o2bobo$10bo$6b2o10b2o9b2o$18bob4ob4obo$3bo15bo
3bobo3bo$3b3o13bo3bobo3bo$6bo13b3o3b3o$5b2o6$10b2ob2o$10bo3bo$11b3o2$
2b2o17b2o$3bo17bo$3o19b3o$o23bo9$9b2o$10bo$7b3o$7bo!

The bottom eater just deals with a blinker, so the main body of the oscillator is quite small. I ran a few periodic CatForce searches and found a few still life factories, but no easy glider-producing reactions where the glider travels in the right direction. There's this

Code: Select all

x = 31, y = 42, rule = B3/S23
9b2o$6bo$5bobo2b2o$3bobob3o2bo$3bo2b6o$6b2ob2o11bo3bo$5b6o2bo7bobobobo
$4bo2b3obobo8b2ob2o$5b2o2bobo$10bo$6b2o10b2o9b2o$18bob4ob4obo$3bo15bo
3bobo3bo$3b3o13bo3bobo3bo$6bo13b3o3b3o$5b2o6$10b2ob2o$10bo3bo$11b3o2$
2b2o17b2o$3bo17bo$3o19b3o$o18bo4bo$18bobo$19b2o6$17b2o$17b2obo$21bo$
18bo$19bob2o$21b2o!

but wrong direction.

[C28]

Possible candidate for a smaller guntrue 64:

Code: Select all

x = 32, y = 42, rule = B3/S23
$9b2o$6bo$5bobo2b2o$3bobob3o2bo$3bo2b6o$6b2ob2o11bo3bo$5b6o2bo7bobobob
o$4bo2b3obobo8b2ob2o$5b2o2bobo$10bo$6b2o10b2o9b2o$18bob4ob4obo$3bo15bo
3bobo3bo$3b3o13bo3bobo3bo$6bo13b3o3b3o$5b2o6$10b2ob2o$10bo3bo$11b3o2$
2b2o17b2o$3bo17bo$3o19b3o$o23bo9$9b2o$10bo$7b3o$7bo!

reduced

Code: Select all

x = 31, y = 35, rule = B3/S23
9b2o$6bo$5bobo2b2o$3bobob3o2bo$3bo2b6o$6b2ob2o11bo3bo$5b6o2bo7bobobob
o$4bo2b3obobo8b2ob2o$5b2o2bobo$10bo$6b2o10b2o9b2o$18bob4ob4obo$3bo15b
o3bobo3bo$3b3o13bo3bobo3bo$6bo13b3o3b3o$5b2o6$10b2ob2o$10bo3bo$11b3o2$
2b2o17b2o$3bo17bo$3o19b3o$o23bo5$11b2o$11b2o!

[iNoMed]

Blueprint for a much smaller p32 gun using a p32 Dueling Banjos variant from mvr catsoup stdin:

Code: Select all

x = 22, y = 37, rule = B3/S23
13bo3bo$12bobobobo$10b2o2bobo2b2o$10b2ob2ob2ob2o$9bobo7bobo$10bo2b2ob
2o2bo2$13b2ob2o$9bo2bobobobo2bo$9bo3bo3bo3bo$3b2o$3b2o2$10b2o$2b2o5bob
o6b2o$2b2o5bo8b2o$9b3o3$o$o8b3o$o8bo8b2o$9bobo6b2o$10b2o4$9bo3bo3bo3bo
$9bo2bobobobo2bo$13b2ob2o2$10bo2b2ob2o2bo$9bobo7bobo$10b2ob2ob2ob2o$
10b2o2bobo2b2o$12bobobobo$13bo3bo!

[cvojan]

I am not sure if any sparker work here.

Code: Select all

x = 27, y = 37, rule = B3/S23
18bo3bo$17bobobobo$15b2o2bobo2b2o$15b2ob2ob2ob2o$14bobo7bobo$15bo2b2o
b2o2bo2$18b2ob2o$14bo2bobobobo2bo$14bo3bo3bo3bo$8b2o$8b2o2$2ob2o10b2o
$5o2b2o5bobo6b2o$b3o3b2o5bo8b2o$14b3o2$b3o$b3o$o2bo10b3o$bo12bo8b2o$14b
obo6b2o$15b2o$7bo$5b2o$6b2o$14bo3bo3bo3bo$14bo2bobobobo2bo$18b2ob2o2$
15bo2b2ob2o2bo$14bobo7bobo$15b2ob2ob2ob2o$15b2o2bobo2b2o$17bobobobo$18b
o3bo!

[iNoMed]

41x30 p32 gun completed by mvr:

Code: Select all

x = 38, y = 27, rule = B3/S23
6b2o23b2o$5bo2bo21bo2bo$6bo2bo5b2o5b2o5bo2bo$2bo6bo5b2o5b2o5bo6bo$bobo
3bo2bo17bo2bo3bobo$2b2o3b3o19b3o3b2o2$2b2o3b3o7bo3bo7b3o3b2o$bobo3bo2b
o3b2o2bobo2b2o3bo2bo3bobo$2bo6bo5b3o3b3o5bo6bo$6bo2bo2b2o11b2o2bo2bo$
5bo2bo21bo2bo$6b2o23b2o4$3b3o3b3o2$b2o3bobo3b2o9bo$bo4bobo4bo7bobo$o5b
obo5bo7b2o$bo4bobo4bo$2b3o5b3o2$5b2ob2o$4bobobobo$5bo3bo!

[googleplex]

P896 gun, unfortunately not smaller than record holder:

Code: Select all

x = 68, y = 52, rule = LifeHistory
23.AB$22.B2A$22.2ABAB$21.A2B3A$20.A.ABAB$18.BABA.A$17.3A2BA$17.BAB2A$
19.2AB$19.BA$16.3B.B3.BA$16.8BA.A$15.2A2B2A4BA$15.2A2BABAB.B$16.B.2B2A
2B10.2A$18.2B2AB3.2B6.A$20.3B.5B2.BA.A$12.A8.9B.B2A9.2A$12.3A7.5BA4B10.
A2.A.2A$15.A4.A5B3A3B5.2AB.B.A.2A.A$14.2A3.A5BA3BA2B4.B3AB2A.A$14.4B.
ABA4BABAB2AB4.2A.ABA.A$16.4BA4BA5BAB5.3B.BA$6.2B6.11B3ABABAB5.2B3A$7.
B5.11BA4B2A.B2A4.3A$6.BA4.12BAB2A3B.BA.A2.B3AB6.A$6.2AB3.13B3A2B5.A3.
3A6.A.A$4.BAB2A.19B6.2A2.BAB6.A.A$4.3A2BA.18B11.B6.2A.2A3.2A$5.BABA.A
.18B8.5B5.B6.A4.2A.A$7.A.ABA5B.12B7.7B3.2AB4A.A4.A.2A$8.A2B3A7BA8B7.9B
.2A.A3.A$9.2ABAB.4B4A6B9.7B.3B3.A4.A3.3A$9.B2A3.3B4ABA3B10.10B4.3A2.A
.A.AB2.A$10.AB3.2BA2BA2BA4B7.13B2.A4.A2BA.AB3A$17.BA6BA4B.17B2.2B3A3B
A.A2B2.2A$17.2BA6BA21B2.2A2.3B5.2A.A$12.2A4.3B3AB2A15B.9B2A3BA5.A2.A$
10.2B2AB2.5B4A16B.4B2.3B2A3BA5.A3.A$6.2B2.4B3.6B2A21B4.2A2.3B5.2A.A.A
$5.BAB2.3BA2B.6BA21B5.2B3A3BA.A2B2.2A$5.5B.B3AB.17B6.4B6.A4.A2BA.AB3A
$4.3ABA3BA2BA18B5.4B8.3A2.A.A.AB2.A$3.A.2A2B2.2BABA2B6.B.8B4.4B10.A4.
A3.3A$.2B2A.A4.3BA2B9.7B4.4B9.A3.A$BAB3A5.2B.B12.6B3.4B10.5A5.A.2A$5B
5.BA2B10.3B3.2B3.4B21.2A.A$2.BAB5.A.A6.B2.BA3B7.4B14.2A.A$2.2B7.A6.3A
B2A2B2A5.4B15.A.2A$18.4A4B2A4.A3B$19.3B2A2.B4.A3B$19.3B8.B3A!

EDIT:
P640, much closer to current record holder (2912 vs 2650)

Code: Select all

x = 56, y = 52, rule = LifeHistory
23.AB$22.B2A$22.2ABAB$21.A2B3A$20.A.ABAB$18.BABA.A$17.3A2BA$17.BAB2A$
19.2AB$19.BA$16.3B.B3.BA$16.8BA.A$15.2A2B2A4BA$15.2A2BABAB.B$16.B.2B2A
2B10.2A$18.2B2AB3.2B6.A$20.3B.5B2.BA.A$12.A8.9B.B2A9.2A$12.3A7.5BA4B10.
A2.A.2A$15.A4.A5B3A3B5.2AB.B.A.2A.A$14.2A3.A5BA3BA2B4.B3AB2A.A$14.4B.
ABA4BABAB2AB4.2A.ABA.A$16.4BA4BA5BAB5.3B.BA$6.2B6.11B3ABABAB5.2B3A$7.
B5.11BA4B2A.B2A4.3A$6.BA4.12BAB2A3B.BA.A2.B3AB6.A$6.2AB3.13B3A2B5.A3.
3A6.A.A$4.BAB2A.19B6.2A2.BAB6.A.A$4.3A2BA.18B11.B6.2A.3A$5.BABA.A.18B
8.5B5.B4.A$7.A.ABA5B.12B7.7B3.2AB3A$8.A2B3A7BA8B7.9B.2A.A$9.2ABAB.4B4A
6B9.7B.3B$9.B2A3.3B4ABA3B10.10B$10.AB3.2BA2BA2BA4B7.13B2.3B.2A$17.BA6B
A4B.17B2.B2A2.A$17.2BA6BA21B2.BAB2A$12.2A4.3B3AB2A15B.7BA3B$10.2B2AB2.
5B4A16B.4B2.BA3B$6.2B2.4B3.6B2A21B4.BAB2A$5.BAB2.3BA2B.6BA21B5.B2A2.A
$5.5B.B3AB.17B6.4B6.3B.2A$4.3ABA3BA2BA18B5.4B$3.A.2A2B2.2BABA2B6.B.8B
4.4B$.2B2A.A4.3BA2B9.7B4.4B$BAB3A5.2B.B12.6B3.4B$5B5.BA2B10.3B3.2B3.4B
$2.BAB5.A.A6.B2.BA3B7.4B$2.2B7.A6.3AB2A2B2A5.4B$18.4A4B2A4.A3B$19.3B2A
2.B4.A3B$19.3B8.B3A!

[hotdogPi]

Why didn't this make it to the forums? (p32, reaction found by mvr and noticed by iNoMed, third Rich's p16 found by mvr again in a separate search)

Code: Select all

x = 28, y = 37, rule = B3/S23
3b2o13bo3bo$b2obo12bobobobo$o2bo12bo2bobo2bo$o2bo4bo6b2ob2ob2ob2o$o2bo
3bobo4bo3bo3bo3bo$b3o3b2o4bo2bob2ob2obo2bo$16bo7bo$b3o3b2o9b2ob2o$o2bo
3bobo3bo5bobo5bo$o2bo4bo5b2ob2o3b2ob2o$o2bo$b2obo$3b2o$16bo$15b2o6b2o$
14b2o7b2o$15bo$16bo2$16bo$15bo$14b2o7b2o$15b2o6b2o$16bo4$14b2ob2o3b2ob
2o$13bo5bobo5bo$18b2ob2o$16bo7bo$13bo2bob2ob2obo2bo$14bo3bo3bo3bo$15b
2ob2ob2ob2o$16bo2bobo2bo$17bobobobo$18bo3bo!

p108 gun that is basically "CatForce oscillator search find but emits gliders"), Nico Brown, iNoMed did eater 3 → toad

Code: Select all

x = 92, y = 92, rule = B3/S23
48b2o$48b2o$38b2o$39bo$39bobo$40b2o3$37b2o$37bobo$38bo11$43bo$42bobo$
44bo$43b2o$40bo2bo$40b2obo$40b2obo$29bo31b2o$28bo2bo10bo20bo$28bo2bo9b
o18bo$30bo10b2o18b2o6$43b3o36b2o$44bo5b2o29bobo5bo$39bo9b2obo29bo4b3o$
38bobo10bo12b3o19bo$38b2o20b2o2b2o20b2o$2o37bo20bobo6bo$2o52bo9b4o2bo$
53b2o12b3o$54bo$37bo$22b3o12b2o$21bo2b4o9bo52b2o$22bo6bobo20bo37b2o$4b
2o20b2o2b2o20b2o$5bo19b3o12bo10bobo$2b3o4bo29bob2o9bo$2bo5bobo29b2o5bo
$8b2o36b3o6$29b2o18b2o10bo$31bo18bo9bo2bo$28bo20bo10bo2bo$29b2o31bo$
48bob2o$48bob2o$48bo2bo$47b2o$47bo$47bobo$48bo11$53bo$52bobo$53b2o3$
50b2o$50bobo$52bo$52b2o$42b2o$42b2o!