Execution of Old Guns by Variable-Speed Firing Squad

[ElijahKen]

Gun 1909 in 10197 (down from 11830):

Code: Select all

x = 103, y = 99, rule = B3/S23
79bo23b$77b3o23b$76bo26b$69bo6b2o25b$68bobo32b$69bo33b$103b$103b$81b2o
20b$73b2o6b2o20b$73b2o28b$103b$64b2o37b$64b2o37b$103b$79b2o22b$79bobo
21b$81bo21b$81b2o20b$103b$33bo69b$33b3o67b$36bo51b2o13b$29b2o4b2o51b2o
13b$30bo72b$30bobo70b$31b2o64bo5b$51b2o43bobo4b$34b2o15b2o44bo5b$33bo
2bo33bo32b$34bobo33b3o30b$35bo37bo17b2o10b$72b2o17b2o10b$18b2o34bo48b$
18b2o13b2o63b2o3b$26b2obobo2bo16b3o10b2o32bobo2b$26bob2ob3o19bo10bo35b
o2b$30bo5b2o14bo8b2obo20b2o13b2ob$30bob2o3bo23bo2b3o4b2o13bo16b$28bobo
2bo3bobo22b2o3bo3b2o10b3o6b2o9b$26b3ob2o6b2o24b4o15bo8b2o9b$8b2o15bo
38bo15b2obo19b$8bobo14b2o38b3o12bobob2o17b$10bo6b2o49bo13bo2bo17b$10b
2o4bob2o43b5o14b2o5bo13b$16bo2bo43bo23b3o13b$16b2ob2ob3o40bo20bo16b$3b
o13bo2b2o2bo39b2o20b2o15b$3b3o12bo5bo44bo33b$6bo12bo2b2o45b3o31b$5b2o
4b2o7b2o4b2o19bo24bo25b2o3b$9b2o2bo12bo19bobo22b2o25bo4b$8bo5bo12b3o
16bobo38b2o6bo3b3ob$8bo2b2o2bo13bo17bo39b2o6b4o3bo$8b3ob2ob2o25b2o30b
2o24bobo$13bo2bo24bobo29bo2bo20b2ob2ob$13b2obo4b2ob2o15bo32b2o21b2o4b$
14b2o6bobo15b2o58b2ob$6b2o14bobo3b2o6bo64bob$7bo15bo3bobo6b3o61bo2b$4b
3o22bo9bo41b2o17b2ob$4bo33b2o42bo20b$79b3o21b$79bo11b2o5b2o3b$30b2o58b
o2bo4bobo2b$30bo55b2o3bobo6bo2b$27b2obo51b2obobo4bo7b2ob$27bo2b3o4b2o
44bobo9b2o6b$4b2o22b2o3bo3b2o43bo2b2o8bo7b$5bo24b4o49b2o11b3o4b$2b3o
20bo4bo15b2o37b2o11bo4b$2bo20b3o5b3o12bobo36bo17b$3b4o15bo11bo13bo37bo
16b$5bobo14b2o5b5o14b2o35b2o16b$7bo6b2o13bo73b$7b2o4bob2o14bo71b$13bo
2bo13b2o71b$13b2ob2ob3o81b$o13bo2b2o2bo81b$3o12bo5bo81b$3bo12bo2b2o82b
$2b2o4b2o7b2o4b2o78b$6b2o2bo12bo79b$5bo5bo12b3o76b$5bo2b2o2bo13bo76b$
5b3ob2ob2o89b$10bo2bo89b$10b2obo4b2o83b$11b2o6bo83b$3b2o14bobo81b$4bo
15b2o81b$b3o99b$bo101b$103b$103b$103b$103b$10b2o91b$10b2o91b!

EDIT: Reduction to gun 1710 (4130 -> 3944):

Code: Select all

x = 58, y = 68, rule = B3/S23
20b2o36b$20bo37b$21bo36b$8bo11b2o36b$8b3o11b2o34b$11bo8b2o2bo33b$10b2o
9bobo34b$5b2o7bo4bobob2o33b$6bo6bobo3b2o37b$6bobo4bo2bo41b$7b2o5b2o11b
o30b$25b3o30b$24bo33b$5b2o17b2o32b$6bo51b$5bo52b$5b2o51b$8b2o48b$5b2ob
2o48b$4bobo51b$4bo3b4o46b$5b3o3bo46b$8bo49b$7b2o49b$58b$58b$58b$7bo21b
3o26b$5bobo21bo16b2o10b$4bobo23bo15bo11b$3bo2bo7b2o28bobo11b$4bobo37b
2o12b$5bobo50b$7bo46b2o2b$12bo41b2o2b$13bo44b$3bo9bo44b$3bo54b$2bobo
53b$b2ob2o5b2o3b2o10bo5b2o22b$o5bo7bo9b2obobobobo2bo16b3o2b$3bo7bo5bo
6b2obobobo3b2o21b$2o3b2o5b2ob2o10bobo23bobo2b$13bobo6b6ob4o19b5ob$14bo
6bo6bo22b2o3b2o$4bo9bo6b2o3b3o22b2o3b2o$4bo21bo31b$5bo52b$32b2o17b2o5b
$32b2o15b2obo5b$2b2o10b2o33bo8b$2b2o10b2o42b$50b3obo3b$54bo3b$54bo3b$
58b$32b2o24b$33b2o11bo11b$32bo11b3o11b$21b2o20bo5b2o3b2o2b$20bo3bo18bo
b2o4b3o4b$9b2o8bo5bo7bo7bobobo4bo3bo3b$9b2o8bo3bob2o4bobo7b2o2bo5bobo
4b$19bo5bo3b2o14b2o5bo5b$20bo3bo4b2o17b2o8b$21b2o6b2o14b2obo9b$31bobo
11b2obobo7b$33bo15b2o7b!

EDIT 2:
Reduction of gun 5612 (12090 -> 11210) via a universal LCM device:

Code: Select all

x = 118, y = 95, rule = B3/S23
48bo7b2o60b$48b3o5bobob2o56b$51bo6bobobo7bo47b$50b2o5bo2bo2bo5bobo46b$
57b2o2b2o7bo47b$118b$118b$46b2o70b$47bo70b$47bobo68b$48b2o4b2o12b3o47b
$54b2o62b$54b2o12b2o48b$68b2o17bo30b$53b3o12b2o4b2o10bobo29b$74bobo9bo
bo29b$76bo8b2ob3o27b$76b2o2b2o4bo4bo26b$80b2o3b6o27b$88bo29b$7bo45bo7b
2o2b2o51b$6bobo43bobo5bo2bo2bo14b2o35b$7bo45bo7bobobo9bo4bo2bo34b$62b
2obobo8bo3bobo3bo31b$5b5o56b2o6b3o4bo3bobo30b$4bo4bo12b2o62bo31b$3bo2b
o15b2o94b$3bob2o75b2o6bo27b$2obo5bo72b2o4b3o27b$bobo4bobo18b2o56bo7bob
o20b$o2b2o2bo2bo17bo2bo55b2o5bob2o20b$2o6b2o18b2obo45b2o13b3o23b$20bo
10bob2o22b2o19bo12bo4b2o20b$16b2o10b2obob2o18b2o3bo16b3o13b5obo20b$27b
o2bo22bo2bo4b2o12bo19bo22b$3bo22bob2o24b4o3b2o3b2o23b2o3bo21b$3b3o14b
3o4bo2b3o33bobob2obo17bobo3bo20b$6bo13bobo6bo2bo23b2o10bobob2o18bo3b2o
20b$5bobo11bo2bo7b2o23bobo10b2o48b$5b2o13b2o33b2o61b$118b$5b2o27bo83b$
5bo26b3o83b$6bo24bo75b2o4b2o3b$5b2o4b2o18b2o4b2o67bo2bo3b2o3b$12bo24bo
25b2o42b2o9b$9b3o26bo23bo2bo52b$9bo27b2o24b2o16bo36b$80bobo35b$22b2o
13b2o41bobo35b$12b2o7bo2bo11bobo13b2o27bo36b$11bo2bo6bobo13bo13bobo7bo
6b2o48b$11b3o2bo4b3o14b3o10bo8bobo5b2o42b2o4b$14b2obo22bo9b2o4b2obobo
27b2o21b2o4b$13bo2bo38bobobobobo16b2o7b2o27b$12bob2o10b2o27bo4bob2o16b
2o36b$12bo10bo32b3obo57b$9b2obob2o18b2o6b2o9bo5bob5o52b$9b2obo2bo17bo
2bo2b2o2bo9b5obo5bo52b$13b2o18bobo4bobo15bob3o55b$34bo5bob2o11b2obo4bo
54b$17b2o18b2obo14bobobobobo37bo16b$18bo18bo2bo16bobob2o4b2o7b2ob2o19b
obo15b$15b3o16bo4bo9b2o5bobo8bo9bobo20b2o16b$15bo18b5o10b2o6bo7bobo4b
2obo5bob2o33b$29bo35b2o4bobob2o3b2obobo8b2o22b$30bo5bo33bo6bobo6bo8bo
22b$28b3o4bobo4bo27b7o3b7o8bobo20b$36bo3b3o11b2o40b2o20b$39bo13bo2bo
15b3o7b3o33b$39b2o13b2o15bo2bo3bo3bo2bo32b$71b2o4bobo4b2o32b$77bobo38b
$69bo8bo39b$67bobo46b2o$25b2ob2o38b2o46b2o$23bo2bob2o32b2o54b$23b2o24b
2o10bobo21b2o31b$36b2o7b2obobo10b2o22b2o31b$28bo2bo4b2o7bob2obobo60b2o
3b$28b4o19b2o3b2o3b4o48b2o3b$25bo30b2o4bo2bo52b$25b5o11bo18bo3b2o52b$
29bo7b2obobo17b2o27b2o27b$27bo8bobobobo33b2o5b2o5bo20b2o5b$27b2o4bo2bo
bobobob2o29bo2bo4bobob3o15b2o4bobo4b$33b4ob2o2bo2bo25b2o3bobo6bobo18bo
6bo4b$37bo4b2o23b2obobo4bo7b2o16b3o7b2o3b$35bobo30bobo9b2o21bo14b$35b
2o30bo2b2o8bo37b$68b2o11b3o34b$70b2o11bo34b$70bo47b$71bo46b$70b2o46b!

Reductions to the G-to-B would help a lot.
EDIT 3:
Fixed RLE.
The gun is actually p5246, which didn't have an entry in Catagolue.
I posted this gun to demonstrate the LCM device.
EDIT 4:
Big improvement to the LCM device, and subsequently, to the p5246 (= 61 * 2* 43) gun:

Code: Select all

x = 105, y = 74, rule = B3/S23
58b2obo35bo7b$58bob2o33b3o7b$94bo8b2o$53b2o4b5o30b2o7bob$53bo5bo4bo36b
obob$45bob2ob2obo8bo2bo35b2o2b$45b2obobobo9b2obo2bo14bo21b$51bo7bo5bob
obo12bobo5bo14b$58bobo4bo2bo14bo6bob3o10b$31b2o9b2o14bo2bo2b2o24bob3o
10b$31b2o10bo15b2o42b2o$37b2o4bobo54b2o2bo$31b4o2bobo4b2o54bob2ob$30bo
4bobobo65b$30bobobobobo44bo17b3ob$25b2o4b2obobo45bobo15bo2bob$26bo8bob
o18bo24bo2bo15bobo2b$26bobo7bo19bo24b3o17bo3b$27b2o40bo35b$51bo16bobo
10b2obo20b$50bob2o3bo10bobo9bo2b2o20b$37b3o10bo2bo13b2ob2o8b2o23b$37bo
2bo10b3o9b2o10b2o13b3obo10b$12b2o19bo3b2obo22b2o2b2ob2o3b2o13b3obo6bo
3b$12bo26bo28bob2o22bo5bobo2b$7b2o5bo51bo34bo3b$7bo5b2o19bo19bo11b2o6b
2o29b$4b2obo26bo18bobo17bo2bo28b$4bo2bob2o2b2o7bo31bobob2o10bo3bobo3bo
8b2o14b$6b2obo3b2o7bobo27bobobobobo8bobo3bo4bobo7bo14b$9bo12b2o27bobob
o4bo9bo9b2o5b3o15b$9b2o34b2o4bobo2b4o27bo17b$45bobo4b2o12bo6b2o30b$3b
2o25b2o15bo8b2o8b3o4b2o30b$3bo21b2o2bo2bo14b2o7b2o11bo35b$2obo18bo2bo
4bobo35b2o35b$o2b3o4b2o9bobobo5bo7bo38b2o25b$b2o3bo3b2o10bo2bob2o9bobo
bob2o32bo26b$3b4o18bo2bo8bob2ob2obo33b3o23b$3bo15b2o5bo4bo5bo43bo23b$
4b3o12bobo5b5o4b2o67b$7bo13bo83b$2b5o14b2o6b2obo72b$2bo26bob2o72b$4bo
48bo51b$3b2o48b3o49b$56bo48b$43b2o10b2o48b$44bo60b$44bobo58b$34bo10b2o
58b$32b3o29bo40b$31bo32b2o9bo29b$31b2o33bo7bobo28b$16b2o46b2o8bobo28b$
17bo57bo29b$17bob2o84b$18bo2bo23bo59b$19b2o24bo20b2o37b$34b2o9b3o18b2o
7b2o28b$34b2o11bo11b2o14b2o28b$59bo45b$60b3o42b$62bo42b$43bo3b2o56b$
42bobo3bo56b$41bobo3bo57b$37b2obobo3bo58b$37b2obo2b4obo56b$41bobo3bobo
55b$37b2ob2o2bo2bobo55b$38bobo2b2o3bo56b$26b2o10bobo64b$26b2o11bo65b!

[Vort]

Gun 1909 in 10197 (down from 11830):

Universal LCM device (input is gliders):

Looks like search for new glider to dot spark converters became even more important.

With LCM device, gun_1909 can be optimized further, 10197 -> 9374:

Code: Select all

x = 109, y = 86, rule = LifeHistory
96.2A5.2A$78.2A5.2A5.2A.B2AB3.B2AB.2A$76.2B2AB3.B2A2B3.2A.3B5.3B.2A$
76.4B5.4B4.7B.7B$76.6B.6B6.5B.5B$76.6B.6B6.B3AB.B3AB$78.4B.4B7.BA2BAB
.BA2BAB$77.5B.5B7.A3BA.A3BA$77.5B.5B6.2ABABA.ABAB2A$76.6B.6B5.2AB2AB.
B2AB2A$77.5B.5B6.B3A2B.2B3AB$76.2B3AB.B3A2B5.6B.6B$76.2BA2BA.A2BA2B5.
6B.6B$76.2BA3B.3BA2B5.6B.6B$76.6B.6B5.6B.6B$45.2A29.3BA2B.2BA3B5.6B.
6B$46.A11.2A16.4B2A.2A4B5.6B.6B$37.2A7.A.AB8.A17.6B.6B6.5B.5B$14.2A
21.A.A7.2AB.3B.BA.A17.6B.6B5.6B.6B$15.A11.2A5.BA.A.A9.5B.B2A18.6B.6B
6.5B.5B$15.A.AB8.A6.B2A2.2A8.7B21.5B.5B7.5B.5B$16.2AB.3B.BA.A4.3B4.A
8.7B21.9BA3B6.13B$18.5B.B2A4.4B5.3A5.8B3.B17.7BABA2B5.A6B2.3B.2A$8.2A
8.7B5.4B8.A4.11BA2B2.B13.7BABA2B4.A6B2.B2AB.2A$8.A8.7B5.4B10.3B2.8BA
2BAB.3B13.4B.A3BA4.B3A.2B4.2A$9.3A5.8B3.4B10.13BA4BA3B2A10.7B2AB2AB2.
4B.3B$11.A4.11BA3B6.2B3.4B2AB2A3BA5BA3B2A10.6B.A3BA2.4B3.3B$12.3B2.8B
A2BA2B5.2B2A6B2AB2A3BA5BA2B.B11.4B2.2B3A6B3.BA3B$11.13BA4BA4B2.BAB3A
6B.6B3ABAB15.2B2AB.2B3A5B2.3B2A4B$6.2B3.4B2AB2A3BA5BA6BA5BA3B2AB2A6B
2A2B17.2A2.9B3.2BAB2A3B$5.2B2A6B2AB2A3BA5BA6BA5BA3B2AB2A4B3.2B5.A18.
6B5.9B$5.BAB3A6B.6B3ABAB2.4BA4BA13B9.A.A17.5B7.A4B.B2A$.B.2BA5BA3B2AB
2A6B2A2B5.2BA2BA8B2.3B10.A.A17.5B8.3B2.BA.A$2A3BA5BA3B2AB2A4B3.2B6.3B
A11B4.A8.2A.2A15.7B8.B6.A$2A3BA4BA13B10.4B3.8B5.3A9.B4.2A9.A7B15.2A$.
3B.BA2BA8B2.3B10.4B5.7B8.A5.2AB2A3B2AB7.BABA7B2.2A$2.B2.2BA11B4.A8.4B
5.7B8.2A6.A.2A.2B2A7.2B2A.3BA3B.B2A2B$6.B3.8B5.3A5.4B4.2AB.5B14.A6.2B
A7.4B2.2B3A2B2.4B$11.7B8.A3.4B4.A.AB.3B.B2A12.2A5.BABA5.4B4.A3BA.6B$
10.7B6.3A3.4B5.A8.BA.A18.BA2BA3.4B4.B2AB2A7B$8.2AB.5B6.A4.4B5.2A11.A
15.A2.2B2AB2.ABAB6.5B.4B$7.A.AB.3B.B2A8.4B19.2A13.A.A.7B2AB6.2B3A7B$
7.A8.BA.A6.4B36.A2.2B.5BA7.2B3A7B$6.2A11.A5.4B40.8B8.13B$10.A8.2A3.4B
34.A5.B2A5B10.5B.5B$10.3A10.4B35.3A4.2A4B10.6B.6B$13.A8.4B39.A4.4B11.
6B.6B$12.2A7.4B39.2A4.6B9.6B.6B$12.5B3.4B40.6B2.B.2A9.4B2A.2A4B$14.3B
2.4B43.5B3.A10.4B2A.2A4B$4.2A7.5BA3B43.7B3.3A7.4B2A.2A4B$4.A8.4BA3B
44.8B4.A7.2BAB2A.2ABA2B$.2A.A.B3.7B3A45.9B11.2B3AB.B3A2B$.A2.3AB.2B2A
7B44.11B10.3BA2B.2BA3B$2.2A2.BA3B2A7B45.6B.4B10.5B.5B$4.4A12B45.5B3.
4B9.5B.5B$4.A.2B3.7B.B2A27.A12.8B4.4B4.2A.6B.6B.2A$5.3AB2.7B.BA.A26.
3A8.10B5.4B3.A.A5B3.5BA.A$8.A4.4B5.A29.A6.7B3A2B5.4B3.AB.3B5.3B.BA$3.
5A5.4B5.2A15.2A10.2A6.7BA2BA2B5.4B5.B2AB3.B2AB$3.A10.4B22.A10.5B3.B3A
3BA3BA7.4B5.2A5.2A$5.A9.4B21.A.AB9.4B2.12BA7.4B$4.2A10.4B10.A10.2AB.
3B4.4BA2BA3BA8B8.4B$17.4B7.3A12.7B.4BA18B7.4B$18.4B5.A15.11B2ABAB2A3B
A5BA5B6.4B$19.4B4.2A15.11B3A6BA4BABA5B6.4B$12.2A6.9B14.18BA2BA5B2A5B
7.4B$13.A7.6B14.21BA7BA5B9.4B$13.A.2A5.6B3.B2.2B2.19B.B3.B.2B3.5B12.
4B$14.A2.A4.16BABA14B6.3B7.B15.4B$15.2AB3.5BA11BABABA5B.6B6.B2AB5.3B
15.4B$16.11B2AB2A11B2A3B2.B.5B5.2A6.B2AB15.4B$17.9B2A2B2A10BA5B7.2A
14.2A17.4B$18.29B8.A35.4B$18.17B.B.2B16.3A33.4B$19.15B4.3B17.A34.4B$
19.15B5.A2B.2A49.4B$20.13B5.A.A2B.A50.4B$22.13B2.A.AB2.A52.4B$21.8B4.
2A.A.A3.A54.4B$21.6B6.2ABA2.4A.A53.4B$21.5B8.B2.A.A3.A.A53.4B$21.B.B
9.2A.2A2.A2.A.A54.4B$22.3B9.A.A2.2A3.A56.3BA$21.B2AB9.A.A65.3BA$22.2A
11.A67.3AB!

[ElijahKen]

8398 cell improvement to gun_1849 (17272 -> 8874):

Code: Select all

x = 87, y = 102, rule = B3/S23
31bo55b$29b3o55b$28bo58b$21bo6b2o57b$20bobo64b$21bo65b$87b$87b$33b2o
52b$25b2o6b2o52b$25b2o60b$87b$16b2o69b$16b2o69b$87b$31b2o54b$31bobo53b
$33bo53b$33b2o52b$87b$52b2o33b$53bo33b$4b2o47bobo31b$5bo37bo10b2o31b$
3bo19b2obo14b3o43b$3b2o18bob2o13bo46b$b2o3bo14bobo16b2o45b$o2b4o14b2o
2b2o48b2o10b$2obo22bo48b2o10b$bobob2o5b2o12bob2o57b$bobob2o5b2o13bo2bo
56b$2obo24b2o57b$3bo39b2o32bo9b$3bobo37b2o30b3o9b$4b2o68bo12b$74b2o11b
$13b2o72b$14bo72b$11b3o37bo3b2o25b2o3b$11bo38bobo3bo26bo3b$46b2obobo3b
o27bob2o$46b2obo4bo8b2o10b2o4b3o2bo$50b5obo7bo10b2o3bo3b2ob$42b2obob2o
bo4bobo3b3o16b4o3b$42bob2obo2bob2o2bo4bo4b2o15bo3b$49b2obob2o9bobo12b
3o4b$65bo13bo7b$64b2o14b5o2b$84bo2b$82bo4b$10bo7b2o62b2o3b$10b3o5bobob
2o63b$13bo6bobobo7bo54b$12b2o5bo2bo2bo5bobo53b$19b2o2b2o7bo54b$87b$87b
$8b2o77b$9bo77b$9bobo75b$10b2o4b2o12b3o54b$16b2o69b$16b2o12b2o55b$30b
2o55b$15b3o12b2o4b2o49b$36bobo22bo8b2o15b$38bo22b3o6b2o15b$38b2o24bo
22b$63b2o13b2o7b$78bo8b$15bo7b2o2b2o47bobo8b$14bobo5bo2bo2bo47b2o9b$
15bo7bobobo9bo33b2o14b$24b2obobo8bo32b2o14b$28b2o6b3o48b$87b$87b$53bo
21bo11b$51b3o20bobo10b$32b2o16bo24bo11b$31bobo16b2o35b$31bo5b2o48b$28b
2obo4bo2bo26b2o19b$28bo2bob2o2bobo26b2o19b$29bobobo4bo48b$30b2obobo51b
$34b2o51b$38bob2o45b$34b5ob2o5b2o38b$34bo12b2o38b$37b2ob2o45b$38bobo
46b$38bobo46b$39bo47b$87b$47b2ob2o35b$43b2o2b2obo3b2o31b$43bo6bobo2bo
31b$44b7ob2o33b$51bo35b$46b4obo35b$46bo2b2o36b!

The gun uses a stable x7 device (slightly de-optimized in the gun to avoid a disaster).
FYI, 1849 = 43 * 43

EDIT: The x7 device is a 7G-to-H mechanism with a small H-to-G attached.
I have attached it to a p260 gun to demonstrate the minimum repeat time (although it can easily be overclocked with small adjustments down to 43).

Code: Select all

x = 78, y = 106, rule = B3/S23
38bo39b$36b3o39b$35bo42b$28bo6b2o41b$27bobo48b$28bo49b$78b$78b$40b2o
36b$32b2o6b2o36b$32b2o44b$78b$23b2o53b$23b2o53b$78b$38b2o38b$38bobo37b
$40bo37b$40b2o36b$78b$58b2o18b$59bo14b2o2b$11b2o36bo9bobo12b2o2b$12bo
16b2o16b3o10b2o16b$10bo19bo15bo25b4o2b$10b2o18bob2o12b2o23bo3bo2b$8b2o
3bo14bobobo39bo5b$7bo2b4o14b2o2bo37bobo5b$7b2obo21bob2o34b2o6b$8bobob
2o5b2o12bo2bo37b2o2b$8bobob2o5b2o13b2o39bo2b$7b2obo38b2o24bobo$10bo38b
2o25b2o$10bobo65b$11b2o65b$78b$20b2o56b$21bo35bo3b2o15b$18b3o35bobo3bo
15b$18bo33b2obobo3bo16b$52b2obo4bo17b$56b5obo15b$48b2obob2obo4bobo14b$
48bob2obo2bob2o2bo15b$55b2obob2o16b$78b$78b$78b$78b$78b$78b$20b2o23b3o
30b$3b2o3b2o4b2ob2o2bo4b2o3b4o10bo32b$3bobo3bo5bobob2o5bo3bob2obo10bo
31b$5bo3bob2o2bobobo3b2obo3b2o2b2o42b$5b2ob2obobob2ob2obo2b2o4b2o2b2o
5b2o19b2o14b$9bobobo5bob2o7bob2obo6bo19bo15b$4bob2ob2ob2o6bo2b3o5b4o4b
obo22bo13b$4b2obobo12bo2bo11b2o5b2o14b5o13b$8bo14b2o13b2o5bo13bo18b$
37b2o6bobo12b3o15b$2o35bo2bo5b2o15bo14b$bo2b2o22bo6b2obo21b4o14b$bobob
o22bo6bobo2bobo12b2o3bo3b2o12b$2bo24bo8bo4b2o12b2o4b3o2bo11b$21b2o40bo
b2o11b$4bo15bo2bo12b2o13bo11bo14b$3bobo15b2o13b2o12bobo9b2o14b$4bo12b
2o32bo26b$b3o13b4o35b2o20b$bo14bo4bo35bo20b$17bobobo30b2o3bob2o17b$17b
2o3bo29b2o2b2obo2bo15b$19bo39bob2o15b$52b2o5bo18b$19bo32bo5b2o18b$17b
2o3bo30b3o22b$17bobobo33bo22b$bo14bo4bo56b$b3o13b4o39b2o16b$4bo12b2o
41b2o16b$3bobo15b2o55b$4bo15bo2bo7b3o44b$21b2o7bo2bo7b2o35b$2bo26bo10b
o2bo13b2o6b2o11b$bobobo23bo11b2o7bo6b2o6b2o11b$bo2b2o24bobo3b2o7b2o3bo
7bo19b$2o45bo11bo18b$44bobo12bo18b$8b5o29bob2o13b2ob2o14b$7bo5bo28bo2b
o18bo13b$5b3o5b3o26b3o18b2o13b$4bo11bo61b$5b4obob3obo6b2o17b3o18b2o13b
$9b3o3bo7bobo16bo2bo18bo13b$4bob2o5bo10bo17bob2o13b2ob2o14b$4b2obobobo
b2o29bobo12bo18b$8bo2bobo13bo19bo11bo18b$9b2o2bo12bobo16b2o3bo7bo19b$
13b2o6b2o3bo2bo11b2o7bo6b2o6b2o11b$21b2o4b2o11bo2bo13b2o6b2o11b$31bo4b
2o3b2o35b$32bo3bo41b$32bo2bo42b$26b2o6bo25b2o16b$26b2o32b2o16b!

[Vort]

8398 cell improvement to gun_1849 (17272 -> 8874):

Code: Select all

...

The gun uses a stable x7 device (slightly de-optimized in the gun to avoid a disaster).

Same idea, but different x7 multiplier (8874 -> 7052):

Code: Select all

x = 86, y = 82, rule = LifeHistory
28.2A$28.A2.2A$29.A.A$16.A11.2A2.A$16.3A8.B2.A.A$19.A7.B2A.A$13.A4.2A
6.2B.A$12.A.A3.4BA2B.BA.A$12.A.A5.BABA3B2A$9.2A.A.A.AB.2BA2BA3B$9.2A.
A2.2AB.3B2A2B20.2A18.2A$12.A4.9B11.A8.A.A18.A14.2A$12.2A3.9B9.3A10.A
18.A.AB11.2A$14.AB.9B8.A13.2A18.2AB.B.3B$12.3A12B7.2A13.B20.7B3.4A$
11.A2.B.12B3.5B13.3B18.7B2.A3.A$11.2A3.18B14.6B16.7B.2BAB$16.18B3.B2.
B3.B2.10B11.10BABAB$14.2A.41B3.2B2.13B2A2B$14.A3.33B2A15BD12B.2A$12.A
.A3.33B2A15BDBD8B4.A$12.2A4.8B3.39B3D6B6.A.A$17.8B3.42BD6B7.2A$17.7B
3.51B$15.2AB.5B3.13B2A3B4.13B.4B8.4B$14.A.AB.5B4.10B.A2BAB5.7B.B4.4B
10.4B$14.A5.4B4.12B2AB18.4B12.4B$13.2A5.3B6.5B2.8B16.4B14.4B$30.2B5.
7B2.B12.4B16.4B$29.2A4.9B.B2A10.4B18.4B$29.A4.12B2A9.4B20.4B$27.A.A5.
9B.2B9.4B22.3BA$2.A7.2A15.2A8.8B10.ABAB24.ABA$2.3A5.A.A.2A22.8B8.B2AB
26.2A$5.A6.A.A.A7.A14.8B6.3BA28.B$4.2A5.AB.A2.A5.A.A14.2B2.4B4.4B$4.
4B2.B2AB.2A5.2BAB19.4B2.4B$6.3B2.4B8.2B21.8B$6.4B.4B7.3B22.2B2A2B$2A
5.9B5.4B23.BABA$.A5.11B3.6B20.2BA3B$.A.AB.21B19.8B$2.2AB.2B2A12B3A2B
18.4B2.4B$4.4B2A18B16.4B4.4B$4.24B15.4B6.4B$4.18B2A4B14.4B8.4B$5.2B3A
12B2A2B.B2A11.4B10.4B8.A$5.21B.BA.A9.4B5.2A5.4B5.5A$5.6B3.11B5.A8.4B
7.A5.4B4.A5.A$7.4B5.9B5.2A6.4B8.A.AB.7B2.B3A2.A$7.3B7.4B.4B11.4B10.2A
B.7B3.2B.A.2A$7.2B8.4B2.4B9.4B13.12B4A2.A$6.BA2B5.2A.B2AB2.4B3.8B14.
7B2A3BAB2.2A$6.A.A5.A2.A.BA4.4B.8B15.7B2A2B.B3A$7.A7.A.A.A6.3BA8B15.
10B3.B.A$16.2A.A.A5.ABA8B14.4BA3B8.A.2A$20.2A5.B2A7B14.4BABA2B7.2A.2A
$28.7B8.A6.6BA3B$29.5B7.3A5.4B3.4B.2A$31.4B5.A7.4B5.4B.A$32.4B4.2A5.
4B5.B2A2B.A.2A$33.9B4.4B7.2A2B2A.A2.A$34.6B5.4B11.3B.A.2A$34.8B2.4B9.
2A5.A$32.6B3A6B10.A5.2A$32.6BA7B13.A$32.6BABA4B13.2A$30.2AB.4B2A4B$
29.A.AB3.B2A4B$29.A5.2B2A5B$28.2A6.8B$36.6B$37.5B$38.3B$37.5B$36.B2AB
2A$33.2A2.2A.AB2.2A$33.A2.B3.A.A2.A$34.7A.2A$41.A$36.4A.A$36.A2.2A!

[ElijahKen]

8398 cell improvement to gun_1849 (17272 -> 8874):

Code: Select all

...

The gun uses a stable x7 device (slightly de-optimized in the gun to avoid a disaster).

Same idea, but different x7 multiplier (8874 -> 7052):

Code: Select all

...

Small improvement (7052 -> 6318):

Code: Select all

x = 78, y = 81, rule = B3/S23
20b2o56b$20bo2b2o53b$21bobo54b$8bo11b2o2bo53b$8b3o11bobo53b$11bo8b2obo
54b$5bo4b2o9bo56b$4bobo7bo4bobo56b$4bobo6bobo3b2o57b$b2obobobo4bo2bo
61b$b2obo2b2o5b2o22b2o18b2o18b$4bo24bo8bobo18bo14b2o2b$4b2o21b3o10bo
18bobo12b2o2b$6bo19bo13b2o18b2o16b$4b3o19b2o44b4o2b$3bo67bo3bo2b$3b2o
67bo5b$70bobo5b$6b2o62b2o6b$6bo36b2o29b2o2b$4bobo36b2o30bo2b$4b2o69bob
o$76b2o$78b$7b2o23b2o44b$3b2obobo22bo2bo43b$3b2obo25b2o44b$6bo71b$6b2o
70b$21b2o15b2o38b$6b4o11bo16b2o38b$2o4bo3bo11bo55b$bo7b2o10b2o55b$bobo
74b$2b2o74b$21bo56b$14bo5bobo55b$10b2o2bo6bo56b$10b2o2bo63b$2o76b$o2b
2o73b$b2obo73b$78b$b3o17bo56b$bo2bo15bobo55b$2bobo15bo2bo34bo19b$3bo
17b3o16b2o14b5o17b$41bo13bo5bo16b$20bob2o17bobo12b3o2bo16b$20b2o2bo17b
2o15bob2o15b$23b2o31b4o2bo15b$10bo2b2o36b2o3bo3b2o16b$3bo6bo2b2o36b2o
4b3o18b$2bobo5bo48bo18b$3bo43bo11bob2o15b$46bobo9b2ob2o15b$23bo10bo12b
o30b$14b2o8bo7b3o17b2o24b$14bo7b3o6bo21bo24b$15b3o13b2o15b2o3bob2o21b$
17bo30b2o2b2obo2bo19b$55bob2o19b$48b2o5bo22b$48bo5b2o22b$50bo27b$49b2o
27b$21b2o55b$20bobo8bo46b$20bo9bobo45b$19b2o9bobo45b$31bo46b$78b$78b$
78b$28b2ob2o45b$24b2o2b2obo3b2o41b$24bo6bobo2bo41b$25b7ob2o43b$32bo45b
$27b4obo45b$27bo2b2o46b!

I have posted my previous version of this gun to Catagolue several times, but it still hasn't updated.

[confocaloid]

[...] I have posted my previous version of this gun to Catagolue several times, but it still hasn't updated.

Catagolue readsynth queue is currently clogged by a high volume of submissions (by someone else; the glider guns are relatively low-volume as far as I can tell). The submissions should be processed eventually later. viewtopic.php?f=7&t=2224&start=800

[ElijahKen]

Another improvement to gun_1909, this time true period (9374 -> 6966):

Code: Select all

x = 86, y = 81, rule = B3/S23
24bo61b$24b3o59b$27bo58b$26b2o6bo51b$33bobo50b$34bo51b$86b$86b$21b2o
63b$21b2o6b2o55b$29b2o55b$86b$38b2o46b$38b2o46b$86b$23b2o41b2o18b$22bo
bo41b2o18b$22bo63b$21b2o12bo50b$10bo23b2o50b$9bobo3b2o17bobo49b$8bo2bo
3bo41bo28b$8bobob2obo41b3o26b$5b2obobobobo17bo27bo6bo8b2o8b$5bo2bobo
21b3o24b2o5bob2o5bobo8b$7bobobo23bo29b2o3bo4bo10b$6b2obobo22bobo24b2o
3bo7b2o10b$4bo2bob2o23bobo18bo6b2o2bo3bo15b$4b2o29bo17b3o3b2obo3bo19b$
52bo6bo6bo15bo3b$52b2o26b3o3b$58bo2bo4bobo10bo6b$21b2o35bo8bo3bo8bo5b$
20bo2bo35bo10bobo4bo2bo5b$7bo13b2o33b3o27b$6bobo47bo15bo6bo6b$6bobo63b
o3bob2o6b$7bo16b2o42bo3bo2b2o9b$24bo5b2o28b2ob2o7bo3b2o8b$3bo7bo13b3ob
obo23b2o4bobo4bo3b2o12b$b2o9b2o13bobo19b2o4bobo3bobo5b2obo5b2o6b$28b2o
7b2o10b2o4bo6bo8bo6bo7b$o2bo7bo2bob2ob2o16b2o40b3o4b$16b2obo2bo58bo4b$
b2o4bo4b2o5bob2o22b2obo37b$19bo25b2ob3o35b$18b2o31bo34b$7bo7bobo2b2o
23b2ob3o35b$3bo2bobo2bo3b2o2bo2bo21bo2b2o37b$3bo3bo3bo8b2o21bobo40b$4b
o5bo15bo15bobob2obo30b2o4b$26b3o14bo2bob2o30bo5b$4bo5bo18bo16bo13bo20b
3o2b$4bo2bo2bo17b2o15b2o13b3o20bo2b$5bo3bo32bobo2b2o14bo6bo8b4o3b$2b3o
5b3o29b2o2bo2bo12b2o5bob2o5bobo5b$2bo9bo34b2o19b2o3bo4bo7b$64b2o3bo7b
2o7b$65b2o2bo3bo12b$62b2obo3bo16b$62bo6bo15bo$83b3o$33b2o26bo2bo4bobo
10bo3b$31bo2bo26bo8bo3bo8bo2b$30bob2o28bo10bobo4bo2bo2b$30bo28b3o24b$
27b2obo4bo23bo15bo6bo3b$27b2ob2o3b3o37bo3bob2o3b$38bo32bo3bo2b2o6b$37b
2o27b2o7bo3b2o5b$66bo4bo3b2o9b$64bobo5b2obo5b2o3b$64b2o8bo6bo4b$82b3ob
$84bob$86b$86b$86b$86b$74b2o10b$74b2o10b!

EDIT: Optimized (6966 -> 5616):

Code: Select all

x = 78, y = 72, rule = B3/S23
25bo52b$25b3o50b$28bo49b$27b2o6bo42b$34bobo41b$35bo42b$58b2o18b$29b2o
27b2o18b$22b2o5b2o47b$22b2o54b$28bo49b$27b2o49b$27bobo9b2o8bo28b$39b2o
8b3o26b$52bo15b2o8b$24b2o25b2o14bobo8b$23bobo33b2o6bo10b$23bo34b2obo4b
2o10b$22b2o34bo2bo16b$53b3ob2ob2o16b$53bo2b2o2bo13bo3b$9bo43bo5bo12b3o
3b$8bobo3b2o38b2o2bo12bo6b$7bo2bo3bo35b2o4b2o7b2o4b2o5b$7bobob2obo36bo
12bo2b2o9b$4b2obobobobo17bo16b3o12bo5bo8b$4bo2bobo21b3o14bo13bo2b2o2bo
8b$6bobobo23bo26b2ob2ob3o8b$5b2obobo22bobo25bo2bo13b$3bo2bob2o23bobo
16b2ob2o4bob2o13b$3b2o29bo18bobo6b2o14b$48b2o3bobo14b2o6b$48bobo3bo15b
o7b$48bo22b3o4b$13bo6b2o51bo4b$13bobo3bo2bo55b$13b2o5b2o56b$5b2o71b$5b
2o71b$23b2o53b$23bo5b2o47b$bo22b3obobo41b2o4b$obo23bobo18b2o23bo5b$obo
24b2o7b2o9bo4bo20b3o2b$bo13b2ob2o16b2o10bo3b3o20bo2b$15b2obo2bo25b2o6b
o15b4o3b$18bob2o22b2o8b2o14bobo5b$18bo25b2ob2o13b2o6bo7b$17b2o28bo13b
2obo4b2o7b$6bo7bobo2b2o23b2o3bo11bo2bo13b$5bobo6b2o2bo2bo21bo2b4o6b3ob
2ob2o13b$6bo12b2o21bobobo9bo2b2o2bo13bo$25bo17bo2bob2o6bo5bo12b3o$25b
3o18bobo8b2o2bo12bo3b$28bo16b2o2bo3b2o4b2o7b2o4b2o2b$3b2o3b2o17b2o13bo
bo2bobo4bo12bo2b2o6b$4bo3bo33b2o2b2obob3o12bo5bo5b$b3o5b3o37bobo13bo2b
2o2bo5b$bo9bo37b2o13b2ob2ob3o5b$64bo2bo10b$58b2o4bob2o10b$58bo6b2o11b$
56bobo14b2o3b$56b2o15bo4b$32b2o40b3ob$30bo2bo42bob$29bob2o45b$29bo48b$
26b2obo4bo43b$26b2ob2o3b3o41b$37bo28b2o10b$36b2o28b2o10b!

EDIT 2: Optimized again... by 1 column. (5616 -> 5544):

Code: Select all

x = 77, y = 72, rule = B3/S23
25bo51b$25b3o49b$28bo48b$27b2o6bo41b$34bobo40b$35bo21b2o18b$57b2o18b$
77b$22b2o53b$22b2o6b2o45b$30b2o45b$48bo28b$39b2o7b3o26b$39b2o10bo4b2o
9b2o8b$50b2o14bobo8b$24b2o30bobo7bo10b$23bobo28b5o6b2o10b$23bo29bo23b$
22b2o31bobo19b$73bo3b$58b2o11b3o3b$9bo47bobo10bo6b$8bobo3b2o33b2o7bo3b
o7b2o5b$7bo2bo3bo35bo10bobo13b$7bobob2obo32b3o11b2o14b$4b2obobobobo17b
o15bo29b$4bo2bobo21b3o29bobo11b$6bobobo23bo9b2o21bo9b$5b2obobo22bobo8b
obo4b2ob2o6b5o10b$3bo2bob2o23bobo8bo7bobo7bobo12b$3b2o29bo17bobo14b2o
6b$53bo9b2o4bo7b$70b3o4b$72bo4b$20b2o55b$19bo2bo54b$20b2o55b$77b$77b$
23b2o52b$23bo5b2o40b2o4b$bo22b3obobo40bo5b$obo23bobo18b2o2bo20b3o2b$ob
o24b2o7b2o9bo3b3o20bo2b$bo13b2ob2o16b2o10bo5bo4b2o9b4o3b$15b2obo2bo25b
2o4b2o14bobo5b$18bob2o22b2o13bobo7bo7b$18bo25b2ob2o8b5o6b2o7b$17b2o28b
o8bo20b$6bo7bobo2b2o23b2o3bo8bobo16b$5bobo6b2o2bo2bo21bo2b4o26bo$6bo
12b2o21bobobo14b2o11b3o$25bo17bo2bob2o10bobo10bo3b$25b3o18bobo3b2o7bo
3bo7b2o2b$28bo16b2o2bo3bo10bobo10b$3b2o3b2o17b2o13bobo2bob4o11b2o11b$
4bo3bo33b2o2b2o29b$b3o5b3o37b2o15bobo8b$bo9bo38bo19bo6b$48bo8b2o6b5o7b
$48b2o7bo7bobo9b$55bobo14b2o3b$55b2o9b2o4bo4b$73b3ob$32b2o41bob$30bo2b
o43b$29bob2o44b$29bo47b$26b2obo4bo42b$26b2ob2o3b3o10bo17b2o10b$37bo10b
o16b2o10b$36b2o8b3o28b!

[Period1GliderGun]

gun_630 reduction (1880 -> 1624)

Code: Select all

x = 56, y = 26, rule = B3/S23
2o23b2o$obo21bo2bo$o23bobo$25bob4o9bo$26b2ob2o7b3o6b2o3bo$27bo9bo9bob
obobo$37b2o10bob2o$48bobo$48bobob3o$44bo4b2obo2bo$43b2o9b2o$42b4o$41b
2o3b3o$40b3o2bo3bo$41b2o2bo4bo$42bo2b2o2bo$3b3o41bo$2bo3bo3b3o8b2o$bo
5bo2b3o8b2o$46bo$o7bobobo34b2o$o7bobobo32b2o$34b2o11bo$bo5bo2b3o21bo$
2bo3bo3b3o22b3o$3b3o31bo!

gun_645 reduction (3196 -> 2528)

Code: Select all

x = 79, y = 32, rule = B3/S23
2o23b2o$obo21bo2bo$o23bobo$25bob4o9bo$26b2ob2o7b3o$27bo9bo$37b2o4$43b
o$42bo$41bo4bo$41bo4b2o$43b2o$44b2o$3b3o$2bo3bo3b3o8b2o$bo5bo2b3o8b2o
$47b2o$o7bobobo35b2o$o7bobobo32b2o4bo$34b2o10bo4bo$bo5bo2b3o21bo15bo$
2bo3bo3b3o22b3o11bo25b2o$3b3o31bo37bobo$77bo$77b2o$54b2o$55bo$52b3o$52b
o!

[iNoMed]

gun_630 reduction (1880 -> 1624)

Code: Select all

snip

Small reduction with a better Pi-eating catalyst:

Code: Select all

x = 54, y = 26, rule = B3/S23
2o25bo$obo16b2o6bo10bo$o19bo6bo8b3o6b2o3bo$20bobo12bo9bobobobo$21b2o
12b2o10bob2o$46bobo$26b2o18bobob3o$25b3o19b2obo2bo$28bo23b2o$26b3o$28b
o13bo$42b2o$2bo24bo12bo2b2o$b3o23bo16b2o$8b3o32b2o$8b2obo7b2o19b4o$b3o
3bo3bo7b2o19bobo$7bo2bo33bo$bobo41b2o$bobo39b2o$7bo2bo21b2o11bo$b3o3bo
3bo20bo$8b2obo21b3o$8b3o24bo$b3o$2bo!

[Period1GliderGun]

gun_1806 reduction (3942 -> 2848)

Code: Select all

x = 89, y = 32, rule = B3/S23
9b3o23b2o$9bo24bo2bo$10bo23bobo$35bo3b2o9bo$36b2obo8b3o$37bo9bo$8b2o27b
o9b2o$7bobo$3b2o2bo$3bobob2o$5bo$5bob2o42b2o$ob2obo2bo42b3obobo$2obo2b
2o4b2o2bo34b2obo$3bo7bo2b3o35bo4bo$3b2o9bobo36bobo$14bo2bo36bo$11bo5b
o13b2o$11bo2bo16b2o25bo$12bobo9b2o31bobo$12b3o2bo7bo29bo4bo$12bo2b2o4b
2o2bob2o29bob2o$20bo2bob2obo15b2o9bobob3o$20b2obo20bo15b2o$23bo21b3o37b
2o$20b2obobo21bo37bobo$21bo2b2o61bo$19bobo65b2o$19b2o43b2o$65bo$62b3o
$62bo!

[ElijahKen]

3 row reduction to gun_1058:

Code: Select all

x = 92, y = 71, rule = B3/S23
32b2o25bo$32bobo22bo2bo28b2o$34bo4b2o4b2o10b5o27b2o$30b4ob2o2bo2bo2b2o
10b3ob2o16b2o$30bo2bobobobob2o15b2obo16bo$33bobobobo19b2o16bo2b2o8b2o$
34b2obobo37bo2bo9b2o$38bo20b2o16bobo$58b2obo16b2o$24b2o19b2o10b3ob2o$
25bo7b2o10b2o10b5o16b2o$25bobo5b2o22bo2bo16bobo$26b2o31bo17bo2bo9b2o$
77bo2b2o8b2o$33b3o42bo$35bo43b2o$34bo54b2o$89b2o$45bo$36b2o5bobo18b3o$
36bo7b2o20bo$37b3o25bo$32bo6bo$32bo$b2o12b2o2bo4b2o6bo$b2o12bob2o6b2o$
16bo6bobo2b3o3b3o14b2o$16b3o4b2o26b2o2$16b3o4b2o$16bo36b2o$b2o12bob2o
7b2o6b2o16bobo$b2o12b2o2bo3bo3bo6bo19bo$26bo8b3o$24bo12bo$24bobo$25b2o
6$41b3o$43bo$42bo9$b2o27b2o$b2o26bobo$11b2o18bo$13bo$2o8b2o2bo$2o9bo2b
o17bo$12bobo16bo2bo$12b2o16b5o10b2o$29b2ob3o10b2o$12b2o16bob2o$12bobo
16b2o$2o9bo2bo76bo$2o8b2o2bo16b2o56bobo$13bo16bob2o56b2o$11b2o16b2ob3o
10b2o$b2o27b5o10b2o$b2o28bo2bo$32bo!

[d/dx]

guntrue_660 (i think)

Code: Select all

x = 86, y = 74, rule = B3/S23
7$11b2o$11bobo8bo$13bo4b2obobo4b2o$15b2ob3obo4bobo$15b2o3bo6bo$10b3o4b
4o4b2obo$15b3obo5bo2bo$15bobo9b2ob2o$16bo13bobo$23b2o5bobo$22bo2bo3b2o
b2o$23b3o7bo$24bo4b2obo$29b2obobo$33b2o2$12b2o4b2o$11bo2bo2bo2bo4bo$
11b2ob4ob2o5bo$12bob4obo4b3o$13b2o2b2o13b3o10b2o$34bo10bo$33bo9bobo$
43b2o$10bo2bob2obo2bo17bo$10b4ob2ob4o16bobo8b2o3bo$10bo2bob2obo2bo16bo
bo9bo2bobo$39bo8bo4bobo$48b5obo$52bo$48b2o3bo$48b2o4bo$25bob2o24b2o$
25b2o2bo$28bo$25b2ob2o31b2o$25bobo3b2o28bo$27bob2o2bo25bobo$26bobo2b3o
7bo17b2o$26bo2b2o9bobo11bo$27b2o2b3o6bobo10bobo$29bo2bo8bo12bo$29b2o3b
o24b2o$33b2o24bobo$46b2o13bo$45bo2bo12b2o$46b2o!

[confocaloid]

guntrue_660 (i think)

Code: Select all

x = 86, y = 74, rule = B3/S23
7$11b2o$11bobo8bo$13bo4b2obobo4b2o$15b2ob3obo4bobo$15b2o3bo6bo$10b3o4b
4o4b2obo$15b3obo5bo2bo$15bobo9b2ob2o$16bo13bobo$23b2o5bobo$22bo2bo3b2o
b2o$23b3o7bo$24bo4b2obo$29b2obobo$33b2o2$12b2o4b2o$11bo2bo2bo2bo4bo$
11b2ob4ob2o5bo$12bob4obo4b3o$13b2o2b2o13b3o10b2o$34bo10bo$33bo9bobo$
43b2o$10bo2bob2obo2bo17bo$10b4ob2ob4o16bobo8b2o3bo$10bo2bob2obo2bo16bo
bo9bo2bobo$39bo8bo4bobo$48b5obo$52bo$48b2o3bo$48b2o4bo$25bob2o24b2o$
25b2o2bo$28bo$25b2ob2o31b2o$25bobo3b2o28bo$27bob2o2bo25bobo$26bobo2b3o
7bo17b2o$26bo2b2o9bobo11bo$27b2o2b3o6bobo10bobo$29bo2bo8bo12bo$29b2o3b
o24b2o$33b2o24bobo$46b2o13bo$45bo2bo12b2o$46b2o!

Actually, that's not a p(660 = 60 x 11) gun, but instead a p(720 = 60 x 12) gun.

Even though the pattern contains a device that's supposed to work as a x11 G-to-G pulse divider, the repeat time of that pulse divider happens to be higher than 60 ticks. When you send a p60 glider stream in, one incoming glider is absorbed by a spark from the glider-emitting stage. This means the actual period multiplication is x12 in this case; despite having a pulse divider in the pattern, the device no longer functions as a pulse divider.

You can sanity-check by appending another instance of the same pulse divider device to the output p720 glider stream, and observe that the resulting high-period gun has period 7920 = 11 x 720. Two different period multiplications are achieved by using the same device in two different modes:

Code: Select all

#C In LifeViewer, try pressing F6 (Settings -> Pattern -> Identify) to see the period of this gun.
#C Note the LifeViewer script commands, which should ensure
#C that the period detection happens in a reasonable time.
#C [[ MAXGRIDSIZE 9 THEME Catagolue KILLGLIDERS ]]
x = 71, y = 64, rule = B3/S23
54b2o$53bo2bo12b2o$54b2o13bo$41b2o24bobo$37b2o3bo24b2o$37bo2bo21bo$35b
2o2b3o19bobo$34bo2b2o9b2o12bo$34bobo2b3o6b2o17b2o$35bob2o2bo25bobo$33b
obo3b2o28bo$33b2ob2o31b2o$36bo$33b2o2bo$33bob2o24b2o$56b2o4bo$56b2o3bo
$b2o57bo$bobo8bo43b5obo$2bobo2b2o2bobo4b2o27bo8bo4bobo$4b3obo3bo4bobo
26bobo9bo2bobo$bo3bo11bo28bobo8b2o3bo$bo8bo4b2obo28bo$bo3bo3b2o4bo2bo
32b2o$5bob2o8b2ob2o29bobo$6bo13bobo30bo$13b2o5bobo30b2o$12bo2bo3b2ob2o
$13bobo7bo$13b3o3b2obo$19b2obobo$23b2o2$3bo4bo$2b2o4b2o$bo8bo$2b3o2b3o
$4bo2bo27b2o$35bo$33bobo$b2o6b2o22b2o$o2bo4bo2bo17bo$o2bo4bo2bo16bobo
8b2o3bo$o2bo4bo2bo16bobo9bo2bobo$b2o6b2o18bo8bo4bobo$24bobo11b5obo$25b
2o15bo$25bo12b2o3bo$38b2o4bo$15bob2o24b2o$15b2o2bo$18bo$15b2ob2o31b2o$
15bobo3b2o28bo$17bob2o2bo25bobo$16bobo2b3o6b2o17b2o$16bo2b2o9b2o12bo$
17b2o2b3o19bobo$19bo2bo21bo$19b2o3bo24b2o$23b2o24bobo$36b2o13bo$35bo2b
o12b2o$36b2o!

By the way, this forum thread is only for reductions (by the bounding box area) of existing gun mechanisms or designs. Please check Catagolue first, before posting, to see if the gun would be a bounding box area reduction.

Both guntrue_720 and guntrue_7920 are already smaller than the patterns posted here, so these aren't reductions. (And even if the gun you posted indeed happened to be p660, the existing guntrue_660 on Catagolue is already smaller than that.)

[ElijahKen]

Actual reduction to gun_660 (48 cells):

Code: Select all

x = 48, y = 47, rule = B3/S23
29bo2b2o$29b4obo$34bo$27b7ob2o$26bo6bobo2bo$26b2o2b2obo3b2o$30b2ob2o3$
23b2o$22bo2bo7bo$21bobobo6bobo$20b3obo7bobo$20b3o10bo5$21bo$19b3o$18bo
$18b2o13b2o$33bo$12b2o20b3o$3b2o10b3o18bo$b3obo4bo4bo2b2obo25bo$o4bo4b
o2bo4b5o22bobo$b3ob2o3bo2bo2b4ob2o6b2o15b2o$3b2o2bo4b2o5b2o6bo2bo$6b3o
5b2ob2o7bob2o$6b3o5bobobo7bobo$4bo3bo16b2obo8b3o$3bob4o6b3o7bo2bob2o4b
o3bo3b3o$4bo20b3o2bo4bo5bo2b3o$6bo18bo2bo2bo$5b2o18b3ob3o2bo7bobobo$
24bobo7bo7bobobo$9b3o11bo4b2o$9b9o4bo3bobobo4bo5bo2b3o$16bo2bo3bo6bo5b
o3bo3b3o$13bo4b2o5b5o7b3o$8b2o4bobo11bo$9bo6bob2o2bo3bo3bo$6b3o5bobob
2o3bo2b5o$6bo7b2o8b2o$26b2ob2o$26b2ob2o!

[Period1GliderGun]

gun_123 reduction (3000 -> 2968) using the new p123 R hassler:

Code: Select all

x = 56, y = 53, rule = B3/S23
31bo$31b3o$34bo$33b2o2$41b2ob2o$42bob2o$42bo$41b2o$22b2o22bo$22bobo19b
3o$24bo18bo$24b2o2b5o10b2o$27b4o2bo21bo$22b8obo2bo18b3o$22bo10bo18bo$
25bo6b2o18b2o$25b2o$39b3o$37b2ob2o$2o35b2ob2o2b2o$obo34b3o4b2o$o4$48b
2o$48bo$46bobo$46b2o2$2o25b2o4b3o$obo24b2o2b2ob2o$2bo28b2ob2o$2b2o27b
3o$6b2o38b2o$5bobo31b2o6bo$5bo33bo10bo$2bo3bo31bo2bob8o$2b4o33bo2b4o$
16b2o10b2o10b5o2b2o$2b2o12bobo10bo18bo$2b2o14bo7b3o19bobo$18b2o6bo22b
2o$30b2o$30bo$27b2obo$27b2ob2o2$38b2o$38bo$39b3o$41bo!

[ElijahKen]

Further reduction (2968 -> 2856):

Code: Select all

x = 56, y = 51, rule = B3/S23
9bo5b2o$5b2obobobobo2bo$5b2obobobo3b2o$8bobo$3b6ob4o10b2ob2o$2bo6bo15b
ob2o$2b2o3b3o15bo$7bo16b2o$29bo6b2o$5bo21b3o7bo14b2o$5b3o18bo10bobo12b
2o$8bo2b5o10b2o10b2o$7bo2b4o2bo33b4o$7b6obo2bo31bo3bo$3b2o11bo33bo$3bo
2bobo6b2o31bobo$5b2ob2o38b2o$22b3o27b2o$20b2ob2o28bo$20b2ob2o2b2o24bob
o$20b3o4b2o25b2o2$8b2o$7bobo$7bo$6b2o4$55bo$10b2o4b3o34bobo$10b2o2b2ob
2o35b2o$14b2ob2o$14b3o$29b2ob2o$2b2o18b2o6bobo2bo$3bo18bo11b2o$3o18bo
2bob6o$o21bo2b4o2bo$11b2o10b5o2bo$12bo18b3o$9b3o21bo$9bo$13b2o16bo$13b
o15b3o3b2o$10b2obo15bo6bo$10b2ob2o10b4ob6o$28bobo$21b2o3bobobob2o$21bo
2bobobobob2o$22b2o5bo!

And another reduction to gun_660 (2256 -> 1978):

Code: Select all

x = 46, y = 43, rule = B3/S23
19b2o$19bobo$23bo7b2o7bo$17b4o6b2obobo5b3o$16bo3bob2o3b2obo6bo$15bobo
4bo8bo6bo$15bob5o5b2obobobo3bo$16bo4bo5bob2o2bo$18bob5o3bo8bo$17b2o11b
o2b2ob2o$20bo$15b6o3bo15bobo$15bo4bo3bo3b3o9b2obo$16bob3o5b2o3bo11bo$
15b2obo4bo2bo4bo6b5ob2o$16bobob2o4bo3bo7bo5bo$16bobobo6b3o10bobobo$11b
obo3bo2bo18bo4b2o$14bo3b2o19bo3bo$10bo2bo20bo5b2obo$9bobobo19bobo5bobo
bo$9bo2bo20bobo5bo2b2o$10b2o9bo12bo5b2o$4b2o10b2o3bobo$3bobo9bo2bo2b2o
$3bo12b2o9b2o$2obo24bo$bobob2o18b3o$bobo6bo14bo$2obo2bo2bobo$o2b5ob3o
9b2o$b2o3b2ob2o10bobo$3b2o18bo4bo2bob2obo2bo$3bo19b2o2b2o2bo4bo2b2o$5b
o22bo2bob2obo2bo$4b2o11bobo$18b2o$18bo$31b2o2b2o$29b2o6b2o$29b2o6b2o$
29bo2bo2bo2bo$30b2o4b2o!

[Entity Valkyrie 2]

gun_18 reduced from 151×64 (9664) to 150×64 (9600):

Code: Select all

x = 150, y = 64, rule = B3/S23
85b2o$86bo5bo47b3o$2o5b2o69bo2bo2bo5b3o48b2o$o5bobo25b2o42b4o2b2o3bo
51b2obo$b3o2bo28bo5bo34b2o4b2o3bo2bo50bo5b2o$4bobo3bo16bo2bo2bo5b3o8b
2o23bo2b4o2b5obo51bo2b3obo$b2obobo3b4o13b4o2b2o3bo12bo24bobo3bobo3b2o
9bo14b2o27bo5bo$4bo3bo16b2o4b2o3bo2bo11bobo8bobob2o4b4obo3bobob2o10b3o
8bo5bo30b4o$bo22bo2b4o2bob3obo12b2o3b2o3bo9b2ob2o5bobo11bo11b3o5bo2bo
2bo21b2o$o24bobo3b3o3b2o9bo8b3o8bo6bo20b2o13bo3b2o2b4o21b2o$obo18b4obo
3bo3b2o10b3o11b2o6bo14bo26bo2bo3b2o4b2o21b3o$b2o8b3o7b2ob2o4bobo12bo
11b3o7bo15bo10bo15bo3b3o2b4o2bo$10b2o3bo8bo6b3o11b2o10b3ob2o2b2o26b3o
5bo9b2o3b3o3bobo2bo21bo$9b2o2bobo56b2obo9b2o5bobobo4b3o11bo3bo3bo4bo
17b2obo$10bo5bo6bo47bo4bob2o5bobo3b3ob3o6bo10bobobo8bo7b2o4b2o4bo$11b
2o2bo5bo33bo14bo6b2o8b2o3bobobo6b2o11b3o5b3o7b2o3bo2b2o$15bo5bo2b2o28b
obo6bo6bo7b2o6b2o5b3o21bo17bob3o$13bo6bo5bo15b3o5b2obo2bo5b2ob2o9bo2b
4o11bo39bo3b3o4b2o$21bobo2b2o14bo3bo4bob2o2b2o2bob4o4b2ob2o4b2o38b2o
22bo$12bo8bo3b2o15bob2o3bo2bo2bobo2bobo43bo11bo22b2o$9b2ob2o9b3o10bobo
10b2obob2o2bobo2bo41b3o8b2o4b3o3bo$9b5o23b2o11bo2bo3b2o2b2o53bo6b3obo$
12b2o23bo12bo2bo5b2o2b3o13b2o2b2o9bo21bo2b2o2bo3b2o7b3o$12bo38b2ob5o2b
obo2bo11bo2b2o2bo6bobo22bob2o4b2o13bo$30b2o23bo2bobobo2b2o9bobob4obobo
5b2o40bo4bo$12bobo14b4o16b6o2b2obo13b3obobo2bobob3o49bo$13bo14bo4bo15b
o4bo3bo2bo3b2o6bo3b2ob4ob2o3bo17bo27b2o$25bobobo2bobobo13b3obob2ob2obo
bobo7b2o3bo4bo3b2o18bobo25bo$23b3obobo2bobob3o13bo6bo2bobo11b2o2bo2bo
2b2o20b2o6b6o14bo$22bo3b2ob4ob2o3bo5bobo13b2ob2o10bob2o4b2obo26b2o6b2o
12bo$23b2o3bo4bo3b2obo5b2o5bo4bo54bobobo2bobobo$25b2o2bo2bo2b2o2bobo4b
o8b2o54b3obo6bob3o$25bob2o2bob2obo2bobo68bo3b2ob4ob2o3bo$29b3obo3b2obo
18b2o16b2o16b2o14b2o3bo4bo3b2o$26b2o5bob2o3bobobo13b2ob2o13b2ob2o13b2o
b2o14b2o2bo2bo2b2o$27bob3ob2o2b3obob2o14b4o14b4o14b4o14bob2o4b2obo$26b
o2bo2bo3bo4bo3b2o13b2o16b2o16b2o11b2o21bo$26b2o2bo3b2ob4ob2o3bo60bo2bo
20bobo$31b3obobo2bobob3o7bobo51bobo20bobo$33bobobo2bobobo5bo4b2o52bob
4o7b2o9bo$36b2o2b2o8b2o3bo54b2ob2o10bo$20b3o13b2o2b2o7bobo52b2o5bo8b2o
4b2o$21b2o36bo37bo5b2o14b2o6bo$20b2o38b2o29bo4bobo6bo12b2o7bo$21bo37b
2o30b3o2bobo11bo8bo3bo2bo6b2o$17b2o9b2ob2o4b2o55bobob2o8bo2bo3bo8bo8bo
bo$18bob2o6b2ob2o4bo2bo2bo47b4obo3bo6bo7b2o18bo$20bo6b2o3bo3bo3bo3bo5b
3o10bobo25bo2bobo3bo6bo6b2o19b2o$20bo7b2ob2ob2o8bo4bo3bo10b2o27b2obo3b
o6b2o4b2o8bo$29b5o8bobo4bo3bo10bo22b2o2bo2bo5bo8bo12b2ob2o6bo$30bo4bob
o3bobo5bo3bo33bo2bobobo2bo2bo10b2o8bob4o5bobo$14b2o2b2o2bo27b3o15bo19b
5ob2obo2bo19bobo9bob3o$14b2obob5o45b2o22bo2bob2o20bo2bo9bo3bo$20b2ob2o
7bo6b3o26b2o18b4obob2obo7b2ob2o10b2o12b3o$14b4o2bo3b2o6bo20b2o33bo2bob
obo2bo7b2o6b2o9b2o6bo$9b2o4bo3b3ob2o5bob2o4bobobo10bo38bo3b2o7bo3bo3b
3o10b3o2b2o2b3o$8bobo9b2ob2o4b2o3bo3bo3bo11b3o15bobo31b3o4bo2b4obobob
3obo2b3o2bo$8bo24bobo3b2o2bo2bo9bo16b2o33bo3bobob2o4bo6bobo3bo$7b2o23b
o2b4o3b4obo25bo32b2o4bobobobobobobo2bo4bobo$33b2o4b2o5b2o58bo6bo2bobo
3bob8obo$35b4o2b2o3bo30bo26bobo4bobob2obob2obo7bobobo$35bo2bo2bo5b3o
28b2o24b2o3b3ob2o2bobo3bob2o2bobob2obo$43bo5bo27b2o29bo7bo2bo3b2obo2b
2o5bo$42b2o64b2o7b2o17b2o!

It's been nearly four months and I can't believe that the Catagolue page for gun_18 still hasn't been updated yet...

[confocaloid]

[...] It's been nearly four months and I can't believe that the Catagolue page for gun_18 still hasn't been updated yet...

I think you can DIY that by submitting the canonical form through the nonmagical box in https://catagolue.hatsya.com/syntheses

[Vort]

...
These new H-to-Gs are really coming in handy to provide more compact options for producing the different possible mod-8 timings, e.g., for the LxR-chain toolkit.

Also can be useful for guns:
gun_299: 5106 -> 3550:

Code: Select all

x = 71, y = 50, rule = LifeHistory
2.2A27.A11.2A$3.A26.A.A9.B2AB$3.A.AB15.A3.2A2.A.A9.3B$4.2AB14.A.A2.A
2.2A.2A9.B.B$2A4.3B12.A.A3.A.A2.B8.5B$.A4.4B12.A.4A2.AB2A6.6B$.A.AB2.
4B13.A3.A.A.2A4.8B$2.2AB.6B6.A4.A2.BA.A2.13B$4.8B4.3A3.A.2BA.A5.13B$
4.8B3.A6.2A.2BA5.15B$4.9B2.2A9.3B4.15B$4.13B10.2B.B.17B$4.11B5.29B$4.
12B3.4BD11B2A13B$4.13B2.4B3D9B2A14B$7.11B.4BDBD20B3.B2A$8.5BA11BD19B
4.A2.A$8.6BA14B2.2B2.B3.6B5.2A.A$7.5B3A11B14.6B7.A$8.19B11.9B6.2A$8.
19B11.2A4.4B$9.19B11.A5.4B$7.8B.12B.2B5.3A7.4B16.2A$7.7B3.8B2A3B2A4.A
8.6B7.2A6.A$5.2AB.4B5.7B2AB.B2A8.B.10B5.B2A2B.BA.A$4.A.AB.2B2AB5.10B.
B8.2AB.B2A7B5.4B.B2A$4.A6.2A7.6B8.A4.2A3B2A8B3.7B$3.2A16.4B7.3A5.2B.
12B.8B$22.4B5.A11.19B$23.4B4.2A11.19B$16.2A6.9B11.19B$17.A7.6B14.11B
3A5B$17.A.2A5.6B3.B2.2B2.14BA6B$18.A2.A4.19BD11BA5B$19.2AB3.20BDBD4B.
11B$20.14B2A9B3D4B2.13B$21.13B2A11BD4B3.12B$22.29B5.11B$22.17B.B.2B
10.13B$23.15B4.3B9.2A2.9B$23.15B5.A2B.2A6.A3.8B$24.13B5.A.A2B.A3.3A4.
8B$26.13B2.A.AB2.A4.A6.6B.B2A$25.8B4.2A.A.A3.A13.4B2.BA.A$25.6B6.2ABA
2.4A.A12.4B4.A$25.5B8.B2.A.A3.A.A12.4B3.2A$25.B.B9.2A.2A2.A2.A.A13.4B
$26.3B9.A.A2.2A3.A15.3BA$25.B2AB9.A.A24.3BA$26.2A11.A26.3AB!

[dvgrn]

The current guntrue_241 is 3700 cells:

Code: Select all

x = 74, y = 50, rule = LifeHistory
41.A11.2A$40.A.A9.B2AB$32.A3.2A2.A.A9.3B$18.A12.A.A2.A2.2A.2A9.B.B$18.
3A10.A.A3.A.A2.B8.5B$21.A10.A.4A2.AB2A6.6B$20.2A12.A3.A.A.2B4.8B$20.4B
9.A2.BA.A2.A2BA9B$22.3B7.A.2BA.A5.BA11B$21.4B7.2A.2BA5.A14B$4.2A15.5B
10.3B4.2A3BA9B$3.B2A2B12.6B11.2B.B.3BA13B$4.4B12.8B2.15B2AB2A9B$5.4B10.
41B$3.5B12.41B$.7B13.7B.27B3.B2A$.7B12.35B4.A2.A$2A7B11.19B2.2B2.B3.6B
5.2A.A$2A9B8.17B14.6B7.A$.B.11B2.2B.15B14.9B6.2A$4.29B15.2A4.4B$4.20B
.8B16.A5.2B2A$4.16B2A2B3.8B11.3A7.2A2B$4.16B2A2B5.B3.2A2.A8.A10.BA2B$
5.18B10.A3.3A12.B.3B.4B$12.4B.3B.B12.3A3.A10.18B$13.2BAB10.A8.A2.2A3.
B5.2B2A16B$14.2B2A7.3A11.8B3.2B2A16B$15.2A2B5.A16.8B.20B$16.4B4.2A15.
29B$9.2A6.9B14.15B.2B2.11B.B$10.A7.6B14.17B8.9B2A$10.A.2A5.6B3.B2.2B2.
19B11.7B2A$11.A2.A4.35B12.7B$12.2AB3.27B.9B11.7B$13.44B9.5B$14.44B7.4B
$15.9B2AB2A15B2.13B7.4B$15.13BA3B.B.2B10.7B2.4B6.2B2AB$16.9BA3B2A4.3B
9.7B3.4B7.2A$16.14BA5.A2B.2A5.7B4.4B$17.11BAB5.A.A2B.A6.5B6.4B$19.9BA
2BA2.A.AB2.A7.4B8.4B$18.8B4.2B.A.A3.A9.2B10.4B$18.6B6.2ABA2.4A.A8.2B10.
4B$18.5B8.B2.A.A3.A.A6.B2AB10.4B$18.B.B9.2A.2A2.A2.A.A7.2A12.4B$19.3B
9.A.A2.2A3.A23.3BA$18.B2AB9.A.A32.3BA$19.2A11.A34.3AB!

The shiny new Rx155 enables a p241 gun with a 68*52 = 3536-cell bounding box:

Code: Select all

x = 68, y = 52, rule = B3/S23
25bo$6bo18b3o$6b3o19bo18b2o$9bo17b2o16bo2bo$8b2o35b3o$54b2o$45b3o5bob
o$o44bo2bo4bo$3o20b2o22b2o3b2o$3bo19b2o34b2o$2b2o55bo$50bo6bobo$50b2o
5b2o$46b2o3b2o$45bo3bo2b2o$b2o41bo$b2o42bobo3b2o$63b2o$34b2o12bobo12b
2o$17b2o14bobo12b3o$17bobo13bo16bo$19bo12b2o15bo$19b2o42b2o$44b2o17b2o
$45bo$42b3o$25bo16bo$23b3o$22bo$3b2o17b2o$3b2o42b2o$18bo15b2o12bo$17b
o16bo13bobo$17b3o12bobo14b2o$3b2o12bobo12b2o$3b2o$15b2o3bobo42b2o$23b
o41b2o$14b2o2bo3bo$15b2o3b2o$9b2o5b2o$8bobo6bo$8bo55b2o$7b2o34b2o19bo
$14b2o3b2o22b2o20b3o$14bo4bo2bo44bo$12bobo5b3o$12b2o$20b3o35b2o$19bo2b
o18bo16bo$19b2o21bo16b3o$40b3o18bo!

[Vort]

Large delay of NW14T188_SE8T60 turned out to be quite useful for optimizations.
For example,
gun_769 before (5874):

Code: Select all

x = 89, y = 66, rule = LifeHistory
29.2A$28.A.A21.2A$22.2A4.A23.A.A$20.A2.A2.2A.4A21.A4.2A$20.2A.A.A.A.A
2.A17.4A.2A2.A2.A$23.A.ABABAB19.A2.A.A.A.A.2A$23.A.AB2AB22.BABABA.A$
24.AB.2B24.B2ABA.A$19.A7.3B24.2B.BA$17.3A7.4B6.2A14.3B$16.A8.3B2AB6.A
6.2A6.4B$15.A.A7.3B2AB3.BA.A7.A6.B2A3B$14.BA.A5.10B.B2A8.A.AB3.B2A3B$
13.3BA5.13B11.2AB.10B$11.4B6.14B13.13B$9.6B5.15B13.14B7.A$8.7B4.4B2.
8B15.15B6.3A$.B.4B.8B2.4B5.6B17.8B2.4B8.A$2AB.17B4.9B16.6B5.4B6.A.A$
2A18B5.2A4.4B14.9B4.4B5.A.AB$.2B.16B6.A5.4B12.4B4.2A5.4B5.A3B$4.16B3.
3A7.4B10.4B5.A7.4B6.4B$5.15B3.A10.4B8.4B7.3A5.4B5.6B$6.12B.B2A.A11.4B
6.4B10.A6.4B4.7B$6.11B2.BA.A.2A10.4B4.4B19.4B2.8B.4B.B$7.10B5.A2.A11.
4B2.4B21.17B.B2A$7.6B2A2B5.2A14.8B23.18B2A$7.6B2A3B21.6B24.16B.2B$7.
10B23.4B25.16B$3.A.2AB.8B22.6B24.15B$.3AB2AB3.7B20.8B21.2AB.12B$A4.B
6.6B19.4B2.4B19.A.AB2.11B$.3A.2A4.6B19.4B4.4B18.A5.10B$3.2A2.A4.5B18.
4B6.4B16.2A5.2B2A6B$6.A.A.8B16.4B8.4B21.3B2A6B$2.A.2A.A.A8B8.A6.4B10.
4B21.10B$2.2A.A.BA2B.6B6.3A5.4B12.4B20.8B.B2A.A$5.A2.2B2.7B4.A7.4B14.
4B18.7B3.B2AB3A$5.2A.B3.7B4.2A5.4B16.4B17.6B6.B4.A$3.2A2.A.A2.8B.4B4.
4B18.4B17.6B4.2A.3A$2.A2.A2.2A2.11B5.4B20.4B16.5B4.A2.2A$3.2A7.12B3.
4B22.4B14.8B.A.A$12.12B2.4B24.4B4.A8.8BA.A.3A$13.11B.4B26.4B3.3A6.6B.
2BAB.A2.A$7.2A7.7B.5B27.4B5.A4.7B2.2B2.A.A.A$8.A6.15B27.4B3.2A4.7B3.B
.2A2.A.A$8.A.AB2.16B28.4B2.4B.8B2.A.A2.A.A.A$9.2AB.17B29.4B3.11B2.2A
2.2A.2A$11.19B30.4B.12B$11.19B31.B3A12B$12.18B32.A13B10.A$10.19B34.A
9B11.3A$10.2A2.17B31.12B9.A$11.A3.11B.B.2A30.16B6.2A$8.3A6.10B2.A24.A
6.24B$8.A10.8B3.3A21.3A3.23B$20.7B5.A24.A2.24B$19.8B29.A.B.24B$18.9B
29.2A27B$19.6B29.2A2.A22B.4B$21.5B27.A2.3A3B3.2B3.B7.2B3.4B$21.3B.B2A
26.A4.2B3.4B.3B5.BA2B3.4B$22.B2.BA.A26.4A5.B2AB.B2AB4.A.A5.3BA$28.A
28.A7.2A3.2A6.A7.ABA$28.2A29.A27.2A$58.2A28.B!

gun_769 after (5460):

Code: Select all

x = 84, y = 65, rule = LifeHistory
30.2A$29.A.A$23.2A4.A23.2A$21.A2.A2.2A.4A19.A.A$21.2A.A.A.A.A2.A21.A
4.2A$24.A.ABABAB19.4A.2A2.A2.A$24.A.AB2AB20.A2.A.A.A.A.2A$25.AB.2B23.
BABABA.A$28.3B23.B2ABA.A$19.A8.4B6.2A15.2B.BA$17.3A6.3B2AB6.A15.3B7.A
$16.A9.3B2AB3.BA.A6.2A6.4B7.3A$15.A.A6.10B.B2A8.A6.B2A3B8.A$14.BA.A5.
13B10.A.AB3.B2A3B7.A.A$13.3BA5.14B11.2AB.10B5.A.AB$11.4B6.15B13.13B5.
A3B$9.6B5.4B2.8B15.14B6.4B$8.7B4.4B5.6B15.15B5.6B$.B.4B.8B2.4B4.9B16.
8B2.4B4.7B$2AB.17B5.2A4.4B15.6B5.4B2.8B.4B.B$2A18B7.A5.4B13.9B4.17B.B
2A$.2B.16B4.3A7.4B11.4B4.2A5.18B2A$4.16B4.A10.4B9.4B5.A6.16B.2B$5.15B
16.4B7.4B7.3A3.16B$6.12B.B2A15.4B5.4B10.A3.15B$6.11B2.BA.A15.4B3.4B
11.A.2AB.12B$7.10B5.A16.4B.4B10.2A.A.AB2.11B$7.6B2A2B5.2A16.7B11.A2.A
5.10B$7.6B2A3B23.5B14.2A5.2B2A6B$7.10B24.5B20.3B2A6B$3.A.2AB.8B23.7B
20.10B$.3AB2AB3.7B21.4B.4B19.8B.B2A.A$A4.B6.6B20.4B3.4B17.7B3.B2AB3A$
.3A.2A4.6B20.4B5.4B9.2A5.6B6.B4.A$3.2A2.A4.5B19.4B7.4B7.B2AB5.6B4.2A.
3A$6.A.A.8B17.4B9.4B7.3B5.5B4.A2.2A$2.A.2A.A.A8B8.A7.4B11.4B5.B.B5.8B
.A.A$2.2A.A.BA2B.6B6.3A6.4B13.4B4.5B3.8BA.A.2A.A$5.A2.2B2.7B4.A8.4B
15.4B3.B2A4B.6B.2BAB.A.2A$5.2A.B3.7B4.2A6.4B17.4B.2B2A11B2.2B2.A$3.2A
2.A.A2.8B.4B5.4B19.19B3.B.2A$2.A2.A2.2A2.11B6.4B21.18B2.A.A2.2A$3.2A
7.12B4.4B23.17B2.2A2.A2.A$12.12B3.4B25.16B7.2A$13.11B2.4B27.15B$16.7B
2.4B29.13B$15.8B.4B31.9B7.2A$14.8B.4B33.9B6.A$12.B.12B35.9B2.BA.A$8.
2A.2A13B36.9B.B2A$9.A.A.B.11B2.2A31.4B2A6B$8.A2.A.A12B3.A28.B.5BABA5B
$8.2A2.2A.B.11B.A.2A24.2A6BA8B$17.9B2A.A2.A24.2A18B$18.4B.3B.A.2A27.
20B$18.4B2.2B.A.A28.21B$19.2B3.2B2A2.A29.2B.17B$18.2B4.BAB.2A28.4B3.B
2.13B$17.B2AB3.B2A.A29.2A9.8B.4B$18.2A6.A.A30.A9.7B3.4B$24.A.A.2A26.
3A10.9B2.3BA$24.2A30.A19.2A3.ABA$76.A5.2A$77.3A3.B$79.A!

[ElijahKen]

Somewhat small reduction to gun_19 (22275 -> 22005):

Code: Select all

x = 163, y = 135, rule = B3/S23
24b2o3b2o5b2o63b2o5b2o3b2o$19bo3bobo4bo5b2o63b2o5bo4bobo3bo$18bobobo2b
ob3o79b3obo2bobobo$19b2ob4obo83bo2b3ob2o$25bo86bo$17b4o3bobo32b2o2b2o
9b2o2b2obo32b2ob5o$16bo4b3ob3o28b2o3b3o2bo5bo2bo3bobo20bo9b2o8bo$15bob
ob4o2bobo29bo7b2o5b2o3b3o2bo18b3o6b2obo2bo2b3obo$15bobo9b2o28b2o2bo17b
2o19b2o2bo11b2obobobo$14b2o3bobo2b2obo7b3o17b2o3bo14bo2b2o2bo18b5o4bo
3bob2ob2o2b2o$17bo4b3obobo5bo2bo14bo2b3obo2b3o15bob2ob2o15b4o5b2ob2o4b
2o$18bo4bo4bo5b2obo13bo2b2obo4b3o8bob2o7b3o15b4o4bobo7bo$16bobobo2bobo
2b2o8b2o12bo4b3ob2ob3o6bo2bo3bo6bo10b2obob2o5b2obobo2bobobo$9bo5bobo2b
4obo2b2o8b2o11b4obob2o2bo3bo5bo3bo2b2ob3o13bo4bo6bo2bob4o2bobo5bo$7b3o
3b3obobo5bo2b2o7bo2bo12b2o8b3o7b3o4bob3ob2o10bo2b2o7bo2bo5bobob3o3b3o$
6bo5bo3bo2bo2b2obo2b2o8b2o12b2o4b5o13b4ob2o16b4o7b2obob2o2bo2bo3bo5bo$
5bob2obo2b3o3bobobo4bo24bo8bob2o7b2obo5b2obo9bo4bo9bob2obobobo3b3o5bob
o$2bo2bobob4o7b2o2bobobo13b2o8b2o2b2o2b3obo2bo3bo2bo2bo4bob2o7b4o15bob
o2b2o7b4obobo2bo$bobobob3o4b4o4bobob2ob2o10bo2bo7b2o2b2obo2bobob2o3b2o
bobob2obo3bo7b2o2bo10b3obobobo4b4o2bo2bo2bobobo$2b2obo6b2o4bo3bo2bo5bo
10b2o8b2o2b2obo2bobo9bobob2obo3bo6bo4bo9bo5bo2bo3bo4b2o4bobob2o$5bo2b
2o3bo2b2o2bobo3b5o11b2o8b2o2b2o2b3o2b3o3b2obo2bo4bob2o5b2obob2o10b5o3b
obo2b2o2bo7b2o$2b2o3b3o3bobo2b3ob2o4bo15bob2o5bo8bobo2bo3bo4bo5b2obo4b
4o16bo4b2ob3o2bobo2b3o2bob2o$bobobo4bob2ob2o27bo2bo4b2o4b5ob2o7b2ob4ob
2o7b4o28b2ob2o4b3obobo$o2bobo3b2o6b2o25b3o6b2o19b2o4bob3ob2o2b5o25b2o
7b3obo4bo$3o3b2o4b5o2bo31b4obob2ob2o11bob2ob2ob3o6bo2b2o23bo2bob2obob
3o3b4o$4bobo3b2o4b3obo31bo7bo3bobo5b3obo10bo4b3o23bob2o2b2o2bo$2b2o3bo
2bobo2bo4bo30bo2b2o5b2o2bobo3bobo2b2o6b3o6bo24bobo2b4o3bob2ob2o$2bo4bo
bob6obob2o12b2o16bo2b3o2bo6bo3bo3bo2bo3b2ob2o16b2o12b2ob3o4b2obo5bo$ob
o15bobo14bo19b3o2b2ob4o5b6o2bobo20bo14bobo15bobo$2o16bobo14bobo19b3obo
15bo23bobo14bobo3b2o11b2o$19bo16b2o12b2o7bobob2o9b2obob2o6b2o12b2o16bo
$50b2o7b2o2bobo7bobo2bo8b2o$9b3o43b2o6bobo7bobo6b2o$8b5o14bo13bo13bo8b
o9bo8bo27bo12b3o4b2o$7bob5o13b3o10b3o10bobo27bobo23b3o18b2ob2o$2o4b2ob
3o2b2o14bo22b2o29b2o22bo16bo8bo2b2o$2o5b3o2bob2o13b2o18b2o6b2o4bo24b2o
18b2o15bobobo4bo2b2o$8bo6b2o23b3o6bobo4bobo4b3o21bobo30bo3bo8bo$12bo2b
o22b2o2bo7b2o3bo10bo20b2o29b4o7b3o$12b3o39bob2o7b2o30bobo17bo2b2o6bobo
$18b3o17b3o9b5o3bo38b2o15bobo6b2o2bo$17bo2bo29bo4b3o10b2o28bo14b3o7b4o
$16b2o6bo26b3obo5bo6b2o41bo8bo3bo$17b2obo2b3o27bo6b2o48bo4bobobo$17b2o
2b3ob2o27bobobo51bo8bo$19b5obo30b2o2bo49b2ob2o$20b5o32bob2o51b2o4b3o$
21b3o33bobo10b2o6bo$36b2o18b2o2bo8b2o7b3o20b2o$30b2o4bobo4bo15b2o10bo
9bo13bob2obobo4b2o16bo$12bobo8bobo4b2o5b2o3bobo35b2o13b2obob2o5b2o10b
2o3bobo$10b2o2bo8bo2b2o13bo2bo79bobo$10b2o4b6o4b2o6b2o16bobo59bob2o4b
3ob2o$11bob2o2bo2bo2b2obo8bo5bobo9b2o28bo17b2o8b2obo3b4o2bobo2bo$10bo
2b2obo4bob2o2bo4b3o5b2o3b2o6bo6bo22bobo11b2o2b2o5b2o6bo2b2o2b2o3b2o$7b
ob2o2b5o2b5o2b2o3bo7b2o3b2o12b3o2b3o16b2o11bobo8bo5b3obob2obo2b3o$5b2o
8bo2b2o2bo18bobobo16b2o2bo29bo10bobobob3o7b2o2bo$8bobob3o8b2o3bobo14b
2o12bo2bo7b2o18b2o3b2o8b2o2bob3o4b2ob2o3bo$5b5o3bobo2b2o2bobo5bo10bo4b
o12bo4b2o4bobo10b2o5bobo13bob2obo2b3o2bobo2b2o5bo$5bobobo5bo2b2o2bo4bo
3bo11b3o14bob2o8bo10b2o7bo13bo3b2o7bo2b2o5b3o$7bo7bobo2bobobobob3o3b2o
4bob2o17b2o9b2o18b2o13b3obobo4b2o3bo4bo3b2o3b2o$11b3ob2ob2ob2ob3obo4bo
bo3b2o68bobo2bo2bo2b3o5b2o2bo4bobo3bo$5b2o2bobo2bo8bo3b2ob4o45bo31bobo
b4o14b3obo2bobobo$5bo8bob5ob4o2bobo3bo7b2o34bobob2o27bobo5b2o14bob4ob
2o$7bo3b2obobo5bo2b2obo3bobo5bo3bo15bobo15bobobobo27bo5bo2bo15bo$6b2o
5bo4bobo4bo2bo2b2obob2o2bo3bo6b2o8b2o12b2obobobobo2bo25b3o3b2o15bobo3b
4o$17b2ob2o4b2o7bo3bo5b2o3bo2bo7bo6bo6bo2bo2b2ob4o7b2o5b2o11bo19b3ob3o
4bo$42bo4bo3b2o13bobo8b2o4bo11bobo3bobo31bobo2b4obobo$17b2ob2o4b2o13bo
bo3bo19b2o14bobo12bo2bob3o28b2o9bobo$6b2o5bo4bobo4bo2bo8bo4bo4bo36b2o
10b2obob2o2b3o27bob2o2bobo3b2o$7bo3b2obobo5bo2b2obo2b2o5b2o5b2o7b2o39b
o3bo2bo2b3o2bo23bobob3o4bo$5bo8bob5ob4o2bobo2bo6bo3bo9bo16bobo21bo2b2o
bo5b2o2bo14b3o5bo4bo4bo$5b2o2bobo2bo8bo3b2ob3o7bo3bo10b3o14b2o18b2obo
3bo2bo7bo7b2o4bobo2bo3b2o2bobo2bobobo$11b3ob2ob2ob2ob3obo12b3o13bo14bo
19b2obob5ob2obob4o6b3o3bo2b2o4b2o2bob4o2bobo5bo$7bo7bobo2bobobobob3o
64bo2bobo7b2o10b3o10b2o2bo5bobob3o3b3o$5bobobo5bo2b2o2bo4bo3bo30b2o31b
o2bob5o4b2o8bo4bo8b2o2bob2o2bo2bo3bo5bo$5b5o3bobo2b2o2bobo5bo31bo30b2o
3b2o9bo9b2o2b2o9bo4bobobo3b3o2bob2obo$8bobob3o8b2o3bobo21b2o10bo24bo2b
o2b3o3b2o2b2o2b2o8bo4bo9bobobo2b2o7b4obobo2bo$5b2o8bo2b2o2bo21b2o5b2o
7b5o11bo12b4o2bo2b2o3bob2o2b2o10b3o8b2ob2obobo4b4o4b3obobobo$7bob2o2b
5o2b5o2b2o3bo12bo7bo5bo14bobo21b2o3bob2o2b2o4b2o2bo3b3o5bo5bo2bo3bo4b
2o6bob2o$10bo2b2obo4bob2o2bo4b3o10bobo12bobo12b2o4bo9b7o3b2o2b2o2b2o3b
o2bobo4b2o6b5o3bobo2b2o2bo3b2o2bo$11bob2o2bo2bo2b2obo8bo10b2o13bobo18b
2o6bo7b2o9bo5b3o16bo4b2ob3o2bobo3b3o3b2o$10b2o4b6o4b2o6b2o26b2o17b2o7b
obob2o2bob5o4b2o35b2ob2obo4bobobo$10b2o2bo8bo2b2o27b2ob2obo2b2o25bobob
o2bobo7b2o34b2o6b2o3bobo2bo$12bobo8bobo4b2o5b2o17b2o4b2o2bo26bobob5ob
2obob4o31bo2b5o4b2o3b3o$29bo2bo3bobo18bo5bob2o20bo4b2obo3bo2bo7bo31bob
3o4b2o3bobo$36b2o25bo21bobo4bo3bo2b3o5b2o2bo30bo4bo2bobo2bo3b2o$17bo9b
o4bo29b2o22b2o5bobo3bo2bo2b3o2bo6bo9b2o12b2obob6obobo4bo$19b3o72b3obo
2b2o2b3o9b2o8bo14bobo15bobo$16bo3b2o4bo3bob3o64bobob3o12bo6bobo14bobo
16b2o$13bo13bo6b2o7b2o9b2o40bo4bobo7b2o7bo4b2o16bo$12bo3bo3bo2b2o3b5ob
o7bobo9bo43bobob2o7b2o2bo4bo30bo$13bo2bo3bo9b4o10bo10b3o31bo8bobo5b2o
7bo33b3o$13bo2bo2bo11bo25bo32b2o7b2o6bo8bo2bo15bo12b3obo$14bob2o71b2o
5bo10bobo6bobo14b3o8bo2b2ob2o$15b2obo78bo10b2o6b3o13bo11b4o3bo9b2o$13b
o2bo2bo30b2o43b3o14b2o18b2o9bob2o3b2o9b2o$12bo3bo2bo29bobo59bobo$2o6b
2o2bo3bo3bo8b2o18b2o60b2o31bo4b2o$2o17bo10bo22b2o45bo43bo3b2o$11b2o3bo
10b3o23bobo45b2o40b2o3bo$11b3o13bo27bo8bo35b2o40b2o4bo$15bo28b3o8b2o6b
obo61b3o$43bo2bo3b2o7b2o2bobo51bo7b2o2bo11b2o3b2obo$19bo16b2o5bo3bo2b
2o7bobob2o51bo8bo15bo3b4o$2o16bobo14bobo6b4o9b3obo54b3o9bo12b2ob2o2bo$
obo15bobo14bo10bo8b3o2b2ob4o37bo23bo11bob3o$2bo4bobob6obob2o12b2o16bo
2b3o2bo6bo37bo19bo15b3o$2b2o3bo2bobo2bo4bo30bo2b2o5b2o2bobo35b3o35bo$
4bobo3b2o4b3obo31bo7bo3bobo42bobo12bob2o3b2o$3o3b2o4b5o2bo21b2o8b4obob
2ob2o47b2o12b2o5b2o4bobo8bobo$o2bobo3b2o6b2o22b6o6b2o55bo24b2o2bo8bo2b
2o$bobobo4bob2ob2o24bo2bob3o3b2o4b5ob2o61b2o6b2o4b6o4b2o$2b2o3b3o3bobo
2b3ob2o4bo10b3o2bobobo4bo8bobo2bo47bo11bo8bob2o2bo2bo2b2obo$5bo2b2o3bo
2b2o2bobo3b5o8b2obob2o2b2o2b2o2b2o2b3o2b3o35b2o11bo11b3o4bo2b2obo4bob
2o2bo$2b2obo6b2o4bo3bo2bo5bo6bo3bo2bob3o2b2o2b2obo2bobo38b2o3bo5b3o13b
o3b2o2b5o2b5o2b2obo$bobobob3o4b4o4bobob2ob2o7b2o5bo2bo3b2o2b2obo2bobob
2o39bobo30bo2b2o2bo8b2o$2bo2bobob4o7b2o2bobobo10bo6b2o4b2o2b2o2b3obo2b
o40bobo21bobo3b2o8b3obobo$5bob2obo2b3o3bobobo4bo24bo8bob2o44bo8bo12bo
5bobo2b2o2bobo3b5o$6bo5bo3bo2bo2b2obo2b2o4b2o6bo9b2o4b5o47b2o8b2o9bo3b
o4bo2b2o2bo5bobobo$7b3o3b3obobo5bo2b2o3bo2bo5b2o9b2o8b3o53b2o11b3obobo
bobo2bobo7bo$9bo5bobo2b4obo2b2o2b3obo2bo3bo7b4obob2o2bo3bo67bob3ob2ob
2ob2ob3o$16bobobo2bobo2b2o2b2o2b2obob2o9bo4b3ob2ob3o63b3ob2o3bo8bo2bob
o2b2o$18bo4bo4bo4bobobo2b3o8bo2b2obo4b3o60bo3bo2bobo2b4ob5obo8bo$17bo
4b3obobo4b3obo2bo11bo2b3obo2b3o58bobo4b2o2bob2o2bo5bobob2o3bo$14b2o3bo
bo2b2obo7b6o14b2o3bo63b2o8bo2bo4bobo4bo5b2o$15bobo9b2o10b2o16b2o2bo73b
2o4b2ob2o$15bobob4o2bobo29bo7b2o$16bo4b3ob3o28b2o3b3o2bo61bobo$17b4o3b
obo32b2o2b2o64b2o$25bo103bo$19b2ob4obo$18bobobo2bob3o104bo$19bo3bobo4b
o5b2o97bo$24b2o3b2o5b2o95b3o!

[iNoMed]

Inspired by the above gun_19 reduction, here's a reduction of the period-57 glider gun from 67x66 to 66x63, achieved by reformulating how the glider stream is formed:

Code: Select all

x = 63, y = 66, rule = B3/S23
20b2o3b2o5b2o15b2o$15bo3bobo4bo5b2o14bo2bo$14bobobo2bob3o21bo2b2o2bo2b
o$15b2ob2obobo24b2o4b4o$17bo32b2o6b2o$13b8o2bo24b2obobob2o2bo$12bo6bo
3bo23bo4b2o3b2o$11bob2obo2b3o25bo3bobobobo$11bo3bo2bob2ob2o26b2obo2bo$
10b2o2bo3bob2o26b3o4bob2o$14bo3bo3bobo27b2o2bo$14b2o5bo2bo22b5o5b2o$6b
2o4bobobo2bo3bo9bo21bobobo$6bo4bobo2b4ob3o2bo5bobo12bo2b2o3b2o2bo$8bob
o2bobo5b3o2bo4b2obo12bo3bobo3bobob2o$7b3o3bobo2b2o3bo9bo14bo6b4obobo$
6bo5b2obobobobo2bo25bo2b2o5bo$5bobo6bo2bo2bobobo15bo9bob3obobo2bo$2bo
2bobob5o3b2obob5o12bob2o4bo2b2o3bo2bob2o$bobobo2bo2bo7bobo5bo11bobo5bo
2b2o3bo2bobo$2b2obobo4b2o5bobob5o12bo9bob3obobobo$4b2o7bo2b2ob2obo27bo
2b2o5b2o$2b2obo2b3o2bobo2bo3bob2o22bo6b4o$bobob3o4b2ob2o2b3o2bobo20bo
3bobo5b3o$o4bob3o7b2o5bobo20bo2b2o3b4o3bo$4o3b3obob2obo2bo3b2ob2o27b3o
2bobo$10bo2b2o2b2obo12b2o12b5o3b2o$2b2ob2obo3b4o2bobo2b2ob2o5b2o18b2o
2b2obo$2bo5bob2o4b3obobobob2o23bo3b5o$obo15bobobo30b2o$2o11b2o3bobob2o
11bo10b2o9bo$19bo14b2o10b2o4b3ob4ob2o$33b2o21b2ob2obo$34bo$25b2o8bob3o
$25bo11b3o$2o12bo8bobo19b2o3b2o$2o12b2o7b2o20bobo2b2o$14bobo29b2o$15b
3o$14b2obo28b2o3b2o$15bob2o27bo4bo$15b3o29bo4b3o$16bobo27b2o6bo$17b2o$
18bo3$37bo$35bobo$36b2o$2bo3b2o3bob2o3b2o3b2obo$bobobo3bobo3bo6bo3bo$o
2bobo3bobo14bo7bo$obobo4bobobo2b6o2bobo5b3o$b2ob2ob2o2bob2o3b2o3b2obob
2obo3b2o$6bobobo6bo2bo11bobo2bo$5b3o2bo3bob2o2b2obo3bo3b2o2b2o$2b2o4bo
7b2o2b2o5bo5b2o$3bobobobo2b2obo2b2o2bob3ob5o2b2o$3bobo4bo2bobobo2bobob
2obo6bo2bo$2b2o2b4ob2ob2o6b2obob2o2b2o3b2o$4bobo2bobo3bob4o4b2o3b3obo
15bo$4b2o6b3o7b3o3b2o5b2obo12b2o$14bob5obo2b3obob3obob2o11b2o$15bobo2b
2o3bo4bobobo!

[ElijahKen]

Using the above gun_57 reduction, here is another reduction to gun_19 (22005 -> 21280):

Code: Select all

x = 160, y = 133, rule = B3/S23
24b2o3b2o5b2o62b2o5b2o3b2o$19bo3bobo4bo5b2o62b2o5bo4bobo3bo$18bobobo2b
ob3o78b3obo2bobobo$19b2ob2obobo82bob4ob2o$21bo90bo$17b8o2bo32b2ob2o8b
2o2b2o32bobo3b4o$16bo6bo3bo28b3ob4o2bo4bo2b3o3b2o28b3ob3o4bo$15bob2obo
2b3o35bo3b2o4b2o7bo29bobo2b4obobo$15bo3bo2bob2ob2o28b2o17bo2b2o28b2o9b
obo$14b2o2bo3bob2o29bo3b5o13bo3b2o27bob2o2bobo3b2o$18bo3bo3bobo28b2o2b
2obo8b3o2bob3o2bo13bo9bobob3o4bo$18b2o5bo2bo22b5o3b2o12b3o4bob2o2bo10b
o11bo4bo4bo$16bobobo2bo3bo8b2o21b3o2bobo4b3ob2ob3o4bo11bo3b2o5b2o2bobo
2bobobo4b2o$9bo5bobo2b4ob3o2bo5bobo12bo2b2o3b4o3bo4bo3bo2b2obob4o8b2ob
2o8b2o2bob4o2bobo4bo$7b3o3b3obobo5b3o2bo4bo2bo12bo3bobo5b3o6b3o8b2o10b
3o2b3o5b2o2bo5bobo2bobo$6bo5bo3bo2bo2b2o3bo8b2o14bo6b4o12b5o4b2o10bo
11b2o2bob2o2bobo3b3o$5bob2obo2b3o3bobobobo2bo7bo8bo8bo2b2o5b2o6b2obo8b
o24bo4bobobob2o5bo$2bo2bo5b2o7b2o2bobobo15b2o8bob3obobobo2bo2bo2bob3o
2b2o2b2o11bo11bobobo2bo2bo3bob2obo$bobobobobo4b4o4bobob5o12bo2bo4bo2b
2o3bo2bobob2o2b2obobo2bob2o2b2o5b3o2b3o8b2ob2obob2o3b3o5bo2bo$2b2obobo
4b2o4bo3bo2bo5bo11bobo5bo2b2o3bo2bobo8bobo2bob2o2b2o8b2ob2o7bo5bobo9bo
bobobobo$6b2obo3bo2b2o2bobo3b5o13b2o8bob3obobob4o2b3o2b3o2b2o2b2o5b2o
3bo9b5obobo5b2o4bobob2o$2b2o2b2o2bo2bobo2b3ob2o4bo25bo2b2o5bo2bo2bo2bo
bo8bo11bo14bob2ob2o2bo3bob2o$bobo2bo3b4ob2o35bo6b4ob2o6b2ob5o4b2o8bo
13b2obo3bo2bobo2bo2b2o2b2o$o2bobo3b2o6b2o32bo3bobo5bo19b2o22bobo2b3o2b
2ob4o3bo2bobo$5ob2obo2b4o3bo31bo2b2o3b3o13b2ob2obob4o20bobo5b2o6b2o3bo
bo2bo$5b2o3bo6b2obo38b2o2bob2o4bobo3bo7bo20b2ob2o3bo3b4o2bob2ob5o$2b2o
2b4o8bobo30b5o4b2o3bobo2bobo2b2o5b2o2bo12b2o12bob2o6bo3b2o$2bo5bob8o2b
2o12b2o21bo2bo2bo3bo2bo6bo2b3o2bo13b2o5b2ob2o2bobo8b4o2b2o$obo9b4o2bob
o14bo19bo5b2ob3o4b4ob2o2b3o23b2obobobo2b8obo5bo$2o16bobo14bobo19bobobo
14bob3o30bobobo2b4o9bobo$19bo16b2o12b2o9bob2o8b2obobo7b2o22b2obobo16b
2o$50b2o7b2o2bobo6bobo2b2o7b2o26bo$55b2o6bobo6bobo6b2o11b2o26bo$27bo
14bo12bo8bo8bo8bo10bobo23bo3bo$11b2o14b3o10bo2bo9bobo26bobo10bo11b2o9b
o4bo$2o8b2o18bo9b2obo9b2o28b2o9bo13bo6bo7bo$2o9b2o16b2o9b3o6b2o6b2o4bo
23b2o19bobo3bo4b2o2bo8b2o$12b3o34bobo4bobo4b3o20bobo20b2o7bo2b2o9b2o$
14bo20b2o13b2o3bo10bo19b2o27b2o3bobo$14bo18bo4bo15bob2o7b2o52b3o$18bo
14bo4bo11b5o3bo56b2o2bobo$18bo14bo4bo11bo4b3o10b2o43bobo2b2o$18b3o14b
2o14b3obo4b2o6b2o43b3o$20b2o31bobo4b2o50bobo3b2o$21b2o32b2o2b3o50b2o2b
o$20b2o33b2o3bo38bobo9bo2b2o4bo$57bob2o38b2o10bo7bo$57bobo40bo10bo4bo$
36b2o18b2o2bo50bo3bo$30b2o4bobo20b2o11b2o38bo$11bobo10bobo3b2o5b2o11bo
bo18b2o47bo$10bob2obob4obob2obo23b2o20bo8bo18b2o16bobo$13b12o9b2o15bo
30b3o16bobo9b4o2bobo$11bob2o8b2obo8bo11bo37bo17bo5bob8o2b2o$9b3o14b3o
3b3o11bobo14bo2bo17b2o17b2o2b4o8bobo2bo$6bo2b2o2bo3b4o3bo2b2o3bo12bo2b
o11b2o3bo40b2o3bo6b2o3b2o$6b3ob3o4b4o6b3o30bo4bo35b5ob2obo2b4o3b3o$8bo
3b2obo6bobo4bo15bobo12b2obo6b2o14bo14bo2bobo3b2o6b2o2bo5bo$5bo4bob2obo
2b2o2bobo4b3o12b2o3b2o12bo6bobo13b2o14bobo2bo3b4ob2o3bo4b3o$5bo3bo5bob
o2bobo2bob2o2bo12b2o3b2o21bo12bob2o14b2o2b2o2bo2bobo2b2o4bo3b2o3b2o$6b
obo3bo2bobo2bobobobob3o14bobobo22b2o13b2o18b2obo3bo2b2o7bo2bo4bobo3bo$
6bo3b4ob8obobo22b2o43b2o7b2obobo4b2o3bo3bo3bo3b3obo2bobobo$5b2o3b2o2bo
13bob3o12bo4bo5b4o34bobo5bobobobobo4b3o3bo10bo2b3ob2o$5bo4b3obob4ob2o
2bo2bobo2bo13b3o5b6o26b2o7bo6bo2bo5b2o7bo4bo6bo$7bo4bobobo3bobo3bobo2b
2o11bob2o11bo6bo29b2o8bob2obo2b2o19b2ob5o$6b2o4b2o4bobo4bo2bo14b2o19bo
bo40bo5bo2bo4bo5bo5b2o8bo2b2o$17b2ob2o4b2o37b2o16bo24b3o3b2o15b2obo2bo
2b3obo2bo$37b2o22bo20bobob2o22bo9bo4b2o10b2obobob2o$38bo43bobobobo30bo
3b2o6bo3bob2ob2o2bo$19b2ob2o4b2o8bobo14bo13bobo7b2obobobobo2bo26b2o3bo
8b2ob2o4b2o2bo4bo$8b2o4b2o4bobo4bo2bo8b2o14b2o13b2o7bo2bo2b2ob4o14bo
12bobo9bobo7bo4bo3b3o$9bo4bobobo3bobo3bobo2b2o21bo13bo10b2o4bo11b2o3b
5o7bo2bobo3b2o4b2obobo2bobobo3bo5bo$7bo4b3obob4ob2o2bo2bobo2bo6b2o43bo
bo10bo2bo5bo6b3o5b3o4bo2bob4obob4o2bob2obo$7b2o3b2o2bo13bob3o7b2o3b3o
38b2o10bobobob3o7b2o3bo3bo5bo2bo7bo4b4obobo2bo$8bo3b4ob8obobo18bo10b2o
38b2o2bobo16bo9b2obob2o5b3o4b3obobobo$8bobo3bo2bobo2bobobobob3o15bo9bo
38bobobob2obo24bob2obobo7b2o6bob2o$7bo3bo5bobo2bobo2bob2o2bo25b3o12bo
19bo2bo2b2obob2o9bo16bobo2bo2b3o2bo3b2o2bo$7bo4bob2obo2b2o2bobo4b3o27b
o10bobo18bobobo5bo2bo5bo3bo3b2o7b3obobobo3bo2bobo3b3o3b2o$10bo3b2obo6b
obo4bo41b2o4bo13bobo2b4obo2bo4b3o5b3o6bo5bobob3o2b2ob2obo4bobobo$8b3ob
3o4b4o6b3o48b2o12bobobo2bobob2o4b2o3bobo2bo7b5o2bobo2b2o6b2o3bobo2bo$
8bo2b2o2bo3b4o3bo2b2o3bo44b2o15bo7bobo9bobo17bo2b2o2b5o4b2o3b3o$11b3o
14b3o3b3o31b2o25b2o4b2ob2o8bo3b2o9b3o5b2o2b3o4b2o3bobo$13bob2o8b2obo8b
o30bo23b2o2b2ob2obo3bo6b2o3bo3b2o5bo2bobo4bo4bo2bobo2bo3b2o$15b12o9b2o
32bo14bo7bobobob2o10b2o4bo4bo8b2ob4obobob6obobo4bo$12bob2obob4obob2obo
20b2o14b5o12bobo7bob3o2bo2bob2o16b3o11bobobo15bobo$13bobo10bobo3b2o5b
2o10bo13bo18b2o8bo8b2o5bo5bo8bo5b2ob3o2bobo16b2o$32b2o4bobo10bobo12b3o
26b5ob2o28b2obo4b2o$38b2o12b2o3bo11bo33bo7bo4bo$22bo33bob2o6b4o27b2ob
2obo9bo2bo6bo21b4o$21bobo9b2o21bo2bo6bo3b2o26bobo3bo8b3o6b2o20bo3b2o$
21bobo11b3o19b3o7b3o2bo14bo10bo3b2o17b2obo19bo4bo$22b2o5b2o6bo31bob2o
15b2o9b3o18bo24b2o3bo7b2o$14b2o14b2o4b2o31bo17b2o5bo6bo17b2o2bo8b2o13b
4o7b2o$14b2ob3ob2o12bo32b2o25bo22b3ob2o8b2o6b2o5bo$15b2obo13b2o59b3o
23b2o2bo15bobo4b2o2bo$16bo3bo99bo17b2obo8b2o$16bo3bo39b2o59b2obo10b2o
8bob2o$18bob2o38bo37bo23b2o12bo2b2o4bobo$14b2ob3ob2o5b2o31b3o35b2o22bo
5bo9bo5b2o$2b2o17b2o5b2o33bo34b2o28b2o6b4o$2b2o9b2o33b2o3b2o3b2o67b2ob
o5bo3b2o$13bobo30bo2bo3bo4bobo3bo63bobo6bo4bo$13bobo29bobo6b3obo2bobob
o38bo24b2o6b2o3bo$14bo41bob4ob2o37bobo33b4o$46b2ob2o7bo44b2o17b2o$21b
2o4bob2o17bo8bobo3b4o54bobo4b2o$2b2o16bobo2b3ob2o5bo19b3ob3o4bo27b2o
24b2o5b2o4bobo8bobo$2bobo9b4o2bobobo11b3o17bobo2b4obobo26b2o3bo6bobo
22b2o2bo8bo2b2o$4bo5bob8o2bob4ob2o8bo6b2o7b2o9bobo30bobo6b2o14b2o6b2o
4b6o4b2o$4b2o2b4o8bobo4bobo2bo5b2o5b3o8bob2o2bobo3b2o30bobo5bo15bo8bob
2o2bo2bo2b2obo$7b2o3bo6b2o2b2o5b3o13bo8bobob3o4bo35bo22b3o4bo2b2obo4bo
b2o2bo$2b5ob2obo2b4o3b2o2bo19b4o6bo4bo4bo36b2o9bo13bo3b2o2b5o2b5o2b2ob
o$2bo2bobo3b2o6b2o2bobo2b5o6b2obobobobo5b2o2bobo2bobobo46bo22bo2b2o2bo
8b2o$3bobo2bo3b4ob2o2b3obobo5bo5b2obobo6bo2b2o2bob4o2bobo43b3o14bobo3b
2o8b3obobo$4b2o2b2o2bo2bobo2bo3bobob2ob2o6bo2b5o2bobo2b2o2bo5bobobo60b
o5bobo2b2o2bobo3b5o$8b2obo3bo2b3o2bo2bobobo9bo6b3o4b2o2bob2o2bo2bo60bo
3bo4bo2b2o2bo5bobobo$4b2obobo4b2o7bobo4bo24bo4bobobo52bo11b3obobobobo
2bobo7bo$3bobobobobo4b3o5b2obo2b2o4b3o6bo9bobobo2b2o54b2o11bob3ob2ob2o
b2ob3o$4bo2bo5b2o4bo7bo2b2o2bobo2b5o2bo6b2ob2obobo55b2o8b3ob2o3bo8bo2b
obo2b2o$7bob2obo2b4obob4obo2b2o2bo6bobob2o5bo5bo2bo64bo2bobo2b4ob5obo
8bo$8bo5bo3bobobo2bobo2b2o5bobobobob2o6b5o3b2o64b2o2bob2o2bo5bobob2o3b
o$9b3o3bo4bo4bo4bo6b4o14bo67bo7bo2bo4bobo4bo5b2o$11bo4bo2bo4b3obobo8bo
81bobo8b2o4b2ob2o$17bo3bobo2b2obo8b3o81b2o$16b2obo9b2o7b2o$14bo2bobob
4o2bobo$14b2o2bo4b3ob3o96bobo$19b4o3bobo98b2o$27bo99bo$21b2ob4obo$20bo
bobo2bob3o100bo$21bo3bobo4bo5b2o93bo$26b2o3b2o5b2o91b3o!

[Period1GliderGun]

gun_608 reduction (4814 -> 2337)

Code: Select all

x = 57, y = 41, rule = B3/S23
30b2o4b2o4b2o$29bo2bobo4bobo2bo$29b3o10b3o$32b2o6b2o$31bo2b6o2bo$31b2o
8b2o6$41b2o$19b2o6b2o11bo2bo7bobo$19bo7bo13bobo5b2o$20b3ob2obo7bobo4b
o7b2o$b2o19bobobo7b2o2bo12bo$bo2bo27b2o4bo$3b2o26b2o2bo2bob2o$14b2o10b
2o4bo2b4o$bobo11bo17bo5bo2b2o9b2o$o2bo11bobo17b4obobo10bo$bo14b2o17bo
3b7o8b3o$29b2o5b8obo10bo$b2o4b2o12bo9bo4bo2b2o2b3o$7b2o11bob2o4bobo6b
3o3b2o$bobo15bo2bo6bo9b2o$2b2o10b2o5bo17bobo$bob2o8bo2bo4b2ob3o13b2o$
bob2o9b2o4b2o$2b2o2b3o13bobo$bobo4bo$15bo$b2o3bo7b2o$5bobo5bob2o$bo4b
o5b3o2bo$o2bo10bobobo$bobo11bobobo$16bo2b3o$3b2o12b2obo25bo$bo2bo13b2o
27bo$b2o15bo26b3o!