Execution of Old Guns by Variable-Speed Firing Squad

[EvinZL]

p2025 glider gun with bounding box 88-by-73 (down from infinity, there is no gun_2025 on Catagolue yet):

Code: Select all

x = 88, y = 73, rule = B3/S23
67b2o$64b2o2bo$65bobo$64bo2b2o11bo$64bobo11b3o$65bob2o8bo$67bo9b2o4bo$
67bobo4bo7bobo$68b2o3bobo6bobo$72bo2bo4bobobob2o$49b2o22b2o5b2o2bob2o$
48bobo8bo24bo$48bo10b3o21b2o$47b2o13bo19bo$61b2o19b3o$17bo67bo$16bobo
65b2o$16bobo$17bo63b2o$44b2o36bo$44b2o36bobo$83b2o$13b2o$14b3o$12bo4bo
37b2o23b2o$12b5obo36b2o23bobo$10b2o4bobo2bo60bo$9bo2b4o2bobobo59b2o$6b
o2b3o4bobo2bo34b2o$6b3o3bob2ob2o36bo2bo7b2o$9bo2bobo40bo2bo8bo$8b2o3bo
42b2o4b2o3bobo$61bo2bo3b2o$2o2bo54bo2bobo$o2b2o54b4ob2o$b5o5bobo$11bob
o45b2o$11b2o47bo$b5o5bobo46bobo$o2b2o6bobo47b2o$2o2bo8bo4$12bobo$12bob
o$12bo$37bo$29bo7b2o$4bo22b3o6bobo$3bobo14bo5bo$2bo3bo3b3o5bobo5b2o$2b
o3bo4bo7b2o$2bo3bo4bo$2bo3bo4bo$2bo3bo4bo$2bo3bo3b3o$3bobo$4bo11b2o$
15bobo8bo$15bo9bobo$14b2o9bobo$26bo4$23b2ob2o$19b2o2b2obo3b2o$19bo6bob
o2bo$20b7ob2o$27bo51bo$22b4obo52bo$22bo2b2o51b3o!
#C [[ MAXGRIDSIZE 9 ]]

87 by 72:

Code: Select all

x = 87, y = 72, rule = B3/S23
66b2o$67bo$66bo$66b2o11bo$64b2o11b3o$63bo2b2o8bo$64bobo9b2o4bo$63b2ob
obo4bo7bobo$67b2o3bobo6bobo$71bo2bo4bobobob2o$21bo26b2o22b2o5b2o2bob2o
$20bobo24bobo8bo24bo$21bo25bo10b3o21b2o$46b2o13bo19bo$60b2o19b3o$84bo
$17b2o64b2o$17b2o$80b2o$43b2o36bo$43b2o36bobo$13b2o67b2o$14b3o$12bo4b
o$12b5obo35b2o23b2o$10b2o6bo35b2o23bobo$9bo2b3obobob2o59bo$6bo2b3o6bo
2bo59b2o$6b3o3bobo3bo2bobo31b2o$9bo2bo4bo4b2o30bo2bo7b2o$8b2o3b2o39bo
2bo8bo$9b4o42b2o4b2o3bobo$2o8b3o47bo2bo3b2o$o2b2o4b2o2bo44bo2bobo$b2o
bo4bo48b4ob2o$5bo3b3o$5bo3b2obo45b2o$b2obo5bob2o45bo$o2b2o5b2o47bobo$
2o9bob2o45b2o$10b2ob2o$10b2ob2o$12bo3$4bo$4bo$3b3o12bo10bo$11b2o3bobo
8b3o5bo$11bobo3b2o7bo8b2o$3b3o3bo3bo12b2o6bobo$4bo4b4o$4bo$4bo$4bo4b4o
$3b3o3bo3bo$11bobo$11b2o3b2o$3b3o9bobo8bo$4bo10bo9bobo$4bo9b2o9bobo$26b
o4$23b2ob2o$19b2o2b2obo3b2o$19bo6bobo2bo$20b7ob2o$27bo49bo$22b4obo50b
o$22bo2b2o49b3o!

EDIT: 74 by 62, reworking the glider release to allow a different geometry

Code: Select all

x = 74, y = 62, rule = LifeHistory
63.2A$63.2A$57.2A$52.2A3.A.A.6A$46.A5.A6.A.A5.A$46.3A4.3A2.B2A3.3A$
49.A5.A3.2B2.A$48.2A6.4B3.2A4.2A$48.4B3.10B4.A$50.13B3.BA.A$48.17B.B
2A$13.2A31.21B$14.3A29.18B2AB$12.A4.A28.17BA2BA$12.5A.A28.16BABAB$10.
2A4.A.A2.A29.13BA2B$9.A2.4AB.A.A.A29.14B$6.A2.3A2.A2B.A2.A31.7B4.4B$
6.3A3.A2BAB2A22.2A6.2B2.6B5.B2A3B$9.A2.A.AB.B23.A5.5B.5B7.A2.A.A.2A$
8.2A3.AB27.3A.12B8.3A.2A.A$8.5B31.A13B11.A$2A.2B5.4B25.A5.14B7.2A.A$A
2.3A3.3BAB25.3A4.13B7.A.A$.2A3B2.5AB28.A3.13B$2.4BA4BA2B20.2A3.2A.A4.
9B2.B2A$2.4BA2.2BABAB19.A4.A.A5.9B2.BA.A$.2A3B3.2B2ABAB19.3A.A6.10B5.
A$A2.3A4.2BABAB21.A.2A2.14B4.2A$2A.2B5.3B3A21.20B$10.3BABA22.2B.7BA8B
$10.B4A24.8BABA7B$11.3AB23.9BABA7B$11.BA2B23.10BA8B$11.5B22.18B$4.B7.
5B21.19B$3.3B5.7B19.19B$3.3A4.4B.4B10.A6.5B.3B3.8B6.2A$2.A3BA3.BAB3.
4B7.3A5.4B3.3B3.9B6.A$2.A3BA2.BABAB3.4B5.A7.4B5.B5.9B2.3A$.2B3A2B.BAB
2A4.4B4.2A5.4B11.12BA$.7B.2A2B6.9B4.4B12.11B$9B.3B7.6B5.4B13.5B2A4B$
9B.3B7.8B2.4B14.5B2A3B$.7B.2A2B5.5BABA7B15.10B$.2B3A2B.BAB2A4.6B2A6B
16.9B$2.A3BA2.BABAB4.6BA6B17.9B$2.A3BA3.BAB3.2AB.10B19.8B$3.3A4.3B2.A
.AB3.B2A4B19.6B2A$3.3B5.B3.A5.2B2A5B19.7B$4.B9.2A6.8B19.7B$22.6B21.6B
2.B$23.5B21.6B.B2A$24.3B13.2B8.7B2A$23.5B10.6B5.6B.2B$22.B2AB2A8.2B6A
2B4.5B$19.2A2.2A.AB6.3BA6BA3B2.6B$19.A2.B3.A.A4.3BA8BA3B.A5B$20.7A.3A
3.3BA6BA4BA5B$27.A3.A4.2B6A2B4.3BAB$22.4A.A2.2A6.6B6.A3B$22.A2.2A13.
2B8.B3A!

[ElijahKen]

p2025 glider gun with bounding box 88-by-73 (down from infinity, there is no gun_2025 on Catagolue yet):

Is there a reason you didn't do this? 66 x 45 = 2970

Code: Select all

x = 66, y = 45, rule = B3/S23
34bo2b2o$34b4obo$39bo$32b7ob2o$31bo6bobo2bo$31b2o2b2obo3b2o$35b2ob2o5$
26b2o$27bo7b2o$27bobo5b2o17bo$15b3o10b2o22b3o$14bo3bo3b3o26bo$13bo5bo
2b3o26b2o2$12bo7bobobo35b2o$12bo7bobobo35bobo$62bo$13bo5bo2b3o13b2o22b
ob2o$2b2obo8bo3bo3b3o13bo20b2obobo$2bob2o9b3o21b3o17b2obobo$41bo11b2o
7bob2o$3b5o29b3obob2o7bo2bo3b4o2bo$2bo5bo27bobobobobo8b2o4bo3b2o$o2bob
o18b2o9bo6bo18b2o$2obo19bobo9b3o3b2o19bo$3bobobobo8bo6bo12bo21bo$3bobo
3bo7bobo17b2o21b2o$2b2obob2o7b2ob2o$4bobo8b2obo9b2o$4bobo9b2o9bobo$5b
2ob2o17bo11b3o$7bobo14b2obo10bo3bo$7bo17bobob2o6bo5bo$6b2o17bobob2o6bo
5bo$14b2o8b2obo9bo5bo$12b2o2b2o6bo2b4o7bo3bo2b2o$12bo4bo7b2o3bo8b3o3bo
bo$13bo2bo10b2o18bo$11bobo2bobo8bo19b2o$11b2o4b2o10bo$28b2o!

[iNoMed]

Period-90 glider gun reduced from 33x32 (1056-cell BB) to 36x27 (972-cell BB), achieved by using a p30 banana sparker found through the very end of the Catagolue "all-soups" xp30 census (I'm not even joking!) and performing an LCM reaction with a p45 Pi hassler (instead of simply using a queen-bee shuttle to period-double a p45 glider gun):

Code: Select all

x = 36, y = 27, rule = B3/S23
26b2o$26bobob2o$28bob2o$27b2o$30b2o$24bo6bo$24bo6bobo$23bobo6b2o$22b2o
b2o$21bo5bo$8bo4bo10bo$6b2ob4ob2o5b2o3b2o$8bo4bo3$2o27b2o$obo26b2o$bo$
29bo$8b2ob2o15bobo$9b3o16bo2bo2b2o$10bo21bob2o$30b2o3$9b2o$9b2o!

[Period1GliderGun]

Period-90 glider gun reduced...performing an LCM reaction with a p45 Pi hassler...

This LCM mechanism can also work with a V spark, which reduces gun_225 (using the p75 I-heptomino hassler, from 1632 to 1540):

Code: Select all

x = 44, y = 35, rule = B3/S23
27bo$25b5obo$19bo4bo5b2o$18bobo4bob2o$18bobo3b2obob5o$17b2ob2o2bo2bob
o4bo$16bo7b2o5b3o$17b3ob2o2bo3bobo$19bobob2ob5o5$28b3o$41bo$31bo8b3o$
39b5o$28bobob2o$5bo2bob2obo2bo12bob3o$5b4ob2ob4o$5bo2bob2obo2bo$26bo5b
o$26bo5b2o$2o24bo3bo3bo4b5o$obo27bo2bo6b3o$bo27bo11bo$7b2o3b2o16b2o$5b
2ob2ob2ob2o$5bo2bo3bo2bo$5bo2bo3bo2bo$6b2o5b2o2$27bo$9b2o17bo$9b2o15b
3o!

EDIT: This can reduce gun_2025 by a tiny amount (2970 -> 2940)

Code: Select all

x = 49, y = 60, rule = B3/S23
27bo$25b5obo$19bo4bo5b2o$18bobo4bob2o$18bobo3b2obob5o$17b2ob2o12bo$16b
o4bo3b3obob3o$17b3o2b2o3b2ob2o$19bo2b2obo$23bobo4$40b3o2$30b3o6bo3bo$
29b5o5bo3bo$29b6o$4bo2b2o4b2o2bo16b2o4b3o$3bo3b3o2b3o3bo8bob4ob2o$4bo
2b2o4b2o2bo11b6o$25bo3b5o6b3o$25bo2bo$2o23bob2o10bo3bo$obo25b3o8bo3bo
$bo9b2o4bo11bobo$6bobob2obo4bo3bo7bo9b3o$5b2o12bobobo$6bo2bo8bo18bo$b
o8bobobo6b3o11b3o$obo31bo$34b2o2$9b2o32b2o$9b2o32bobo$45bo$45bob2o$42b
2obobo$42b2obobo$36b2o7bob2o$26b2o7bo2bo3b4o2bo$25bobo8b2o4bo3b2o$18b
o6bo18b2o$18b3o3b2o19bo$21bo21bo$20b2o21b2o2$11b2o$10bobo$10bo$7b2obo
7bo$8bobob2o2b3o$8bobob2o2b2o$7b2obo7bo$7bo2b4o3bo10b2o$8b2o3bo3bo10b
obo$10b2o18bo$10bo13bo5b2o$12bo12bo$11b2o10b3o!

[Period1GliderGun]

A Herschel + a snake rock reaction can produce a pre-block in the same way as 51P384 and the p166 R hassler. When hooked up to the p123 R hassler, this can reduce several periods that are odd multiples of 123.

p861, LCM(123,7); BB = 53x52 = 2756

Code: Select all

x = 53, y = 52, rule = B3/S23
22b2o5bo$21bo2bobobobob2o$21b2o3bobobob2o$28bobo$10b2ob2o10b4ob6o$10b
2obo4b3o8bo6bo$13bo3bo2bo8b3o3b2o$13b2o2bo3bo9bo$9bo8b4o$9b3o8bo12bo$
12bo18b3o$11b2o17bo$o18bo11bo$3o16b2o7b4o$3bo16b2o6bo5b2o$2b2o11b2o13b
obo2bo$16bobobo8b2ob2o$17bobo$18bob3o$10b2o8b3o6b2o$10b2o18bo$29bo$30b
3o$17b3o12bo2$6b2o$7bo43b2o$7bobo9b3o28bobo$8b2o42bo2$27b2o$16b3o8b2o
$16b3obo$19bobo$5b2ob2o8bobobo$3bo2bobo13b2o$3b2o5bo6b2o$7b4o7b2o$7bo
11bo20b2o3b4o$8bo17b2o12bo3bo3bo$5b3o18bo14bo2bo4bo$5bo12bo8b3o10b2o3b
obob2o$17b4o8bo19bobo$7bo9bo3bo2b2o22b2o2bo$2b2o3b3o8bo2bo3bo18b2o2bo
$2bo6bo8b3o4bob2o19bo2b2o$3b6ob4o10b2ob2o15bo2b2o$8bobo34bobo$5b2obob
obo3b2o28b2obobo$5b2obobobobo2bo29bo4bo$9bo5b2o31bo3bo$48b4o!

p1107, LCM(123, 27); BB = 74*56 = 4144

Code: Select all

x = 74, y = 56, rule = B3/S23
22b2o5bo$21bo2bobobobob2o$21b2o3bobobob2o$28bobo$10b2ob2o10b4ob6o$10b
2obo15bo6bo35b2o$13bo15b3o3b2o34bobo$13b2o16bo41bo$9bo$9b3o21bo$12bo18b
3o$11b2o17bo$o30bo$3o14bo10b4o$3bo13bo10bo5b2o$2b2o13bo12bobo2bo$19b3o
7b2ob2o$13b3o3b3o$19bo$10b2o8b2o7b2o$10b2o8bob3o5bo$16bo4b2ob2o3bo$15b
obo4bobo5b3o$14bo3bo13bo$15bobo$6b2o8bo5bo$7bo13bobo35b2o$7bobo10bo3b
o34b2o$8b2o4bobo4bobo$13b2ob2o4bo15b2o2b2o13bo$14b3obo8b2o9b2o2b2o13b
o$17b2o8b2o7bo6b2o11bo$19bo15bo7bo12b2o$17b3o3b3o10b2ob2ob2o10bo2bo$5b
2ob2o7b3o18bo3b2o10bo2bo$3bo2bobo12bo32bobo$3b2o5bo10bo42b3o$7b4o10bo
$7bo32b2o22bo2b2o$8bo17b2o12bo3b2o19b3ob2o$5b3o18bo14bo2b2o$5bo21b3o10b
2o30b2o$29bo17b2ob3o19b2o$7bo16b2o23b2o2bo$2b2o3b3o15bo$2bo6bo15bob2o
22b3o$3b6ob4o10b2ob2o32bobo$8bobo49bo2bo$5b2obobobo3b2o42bo2bo$5b2obo
bobobo2bo42b2o$9bo5b2o44bo$60bo$60bo2$57b2o$57b2o!

[removed 123*13 because it breaks down]

I will edit this post if I find more guns with this mechanism.

[Chris857]

1st and 3rd pattern don't work and self destruct

[Timelord Missionary]

Trivial population and dialgonal bounding box reduction to the p1107 gun:

Code: Select all

x = 74, y = 56, rule = B3/S23
22b2o5bo$21bo2bobobobob2o$21b2o3bobobob2o$28bobo$10b2ob2o10b4ob6o$10b
2obo15bo6bo35b2o$13bo15b3o3b2o34bobo$13b2o16bo41bo$9bo$9b3o21bo$12bo18b
3o$11b2o17bo$o30bo$3o14bo10b4o$3bo13bo10bo5b2o$2b2o13bo12bobo2bo$19b3o
7b2ob2o$13b3o3b3o$19bo$10b2o8b2o7b2o$10b2o8bob3o5bo$16bo4b2ob2o3bo$15b
obo4bobo5b3o$14bo3bo13bo$15bobo$6b2o8bo5bo$7bo13bobo35b2o$7bobo10bo3b
o34b2o$8b2o4bobo4bobo$13b2ob2o4bo15b2o2b2o13bo$14b3obo8b2o9b2o2b2o13b
o$17b2o8b2o7bo6b2o11bo$19bo15bo7bo12b2o$17b3o3b3o10b2ob2ob2o10bo2bo$5b
2ob2o7b3o18bo3b2o10bo2bo$3bo2bobo12bo32bobo$3b2o5bo10bo42b3o$7b4o10bo
$7bo32b2o22bo2b2o$8bo17b2o12bo3b2o19b3ob2o$5b3o18bo14bo2b2o$5bo21b3o10b
2o30b2o$29bo17b2ob3o19b2o$24b2o23b2o2bo$25bo$25bob2o22b3o$24b2ob2o32b
obo$60bo2bo$16b2o42bo2bo$17bo42b2o$14b3o44bo$14bo45bo$60bo2$57b2o$57b
2o!

[Period1GliderGun]

1st and 3rd pattern don't work and self destruct

Ooh, I didn't notice that. The sparker period also has to be a multiple of 3; if it's coprime to 123, then a beehive will form and kill the reaction.

[ElijahKen]

Ooh, I didn't notice that. The sparker period also has to be a multiple of 3; if it's coprime to 123, then a beehive will form and kill the reaction.

Using a different LCM mechanism fixes this problem.
gun_861 (5369 -> 5032):

Code: Select all

x = 74, y = 67, rule = B3/S23
65bo$63b2o4b2o$63b2o2b2ob3o$64bo8bo$69b2obo$64bobo3bobo$64bob2o$63bo8b
o$59bo4b3ob2o2b2o$59b3o4b2o4b2o$62bo8bo$61b2o4$14bo$14b3o$17bo$16b2o$
73bo$24b2ob2o17bo24bobo$25bob2o17b3o23b2o$25bo23bo$24b2o10b2o10b2o$29b
o7bo$5bo21b3o7bobo$5b3o18bo11b2o$8bo17b2o$7bo60bo$7b4o10bo45bobo$3b2o
5bo10bo45bobo$3bo2bobo12bo46bo$5b2ob2o7b3o18bo3b2o$17b3o3b3o10b2ob2ob
2o$19bo15bo7bo15b2o$17b2o8b2o7bo6b2o14b2o7b2o$14b3obo8b2o9b2o2b2o8b2o
14b2o$13b2ob2o4bo15b2o2b2o8bo$8b2o4bobo4bobo29b3o$7bobo10bo3bo30bo$7bo
13bobo12bo3b2o$6b2o8bo5bo12bobo3bo$15bobo17b2o3bo$14bo3bo13bo6bo$15bob
o4bobo5b3o2b5obo$16bo4b2ob2o3bo5bo4bobo$10b2o8bob3o5bo5b3obobo$10b2o8b
2o7b2o7bob2o$19bo$13b3o3b3o$19b3o7b2ob2o$2b2o13bo12bobo2bo$3bo13bo10bo
5b2o$3o14bo10b4o$o30bo$11b2o17bo$12bo18b3o$9b3o21bo$9bo$13b2o16bo$13bo
15b3o3b2o$10b2obo15bo6bo$10b2ob2o10b4ob6o$28bobo$21b2o3bobobob2o$21bo
2bobobobob2o$22b2o5bo!

gun_1599 (infinity -> 5395):

Code: Select all

x = 83, y = 65, rule = B3/S23
77bo$75b5o$74bo5bo$63b2o10b3o2bo$64bo13bob2o$64bob2o9b2o3bo$59bo5bo10b
o2bobo$59b3o7bo5b2ob2ob2o$62bo7bo4bo$61b2o4bobo5b2ob2ob2o$76bo2bobo$
77b2o3bo$78bob2o$14bo60b3o2bo$14b3o57bo5bo$17bo57b5o$16b2o59bo2$24b2ob
2o17bo$25bob2o17b3o$19bo5bo23bo$18b3o3b2o10b2o10b2o$17b2obo8bo7bo$5bo
21b3o7bobo11bo$5b3o18bo11b2o10b3o$8bo17b2o21bo2b2o$7bo12b2o27b2o3bo13b
o13bo$7b4o7b2o34b2o11bobo10bobo$3b2o5bo7bo4bo30b3o10bobo11b2o$3bo2bobo
8bobob2o45bo$5b2ob2o6b2obobo$17bob2o$16b3o40b2o$27b2o30b2o7b2o$27b2o
23b2o14b2o$24bo27bo$8b2o10bo4bo27b3o$7bobo10bo2b2o30bo$7bo12bo15bo3b2o
$6b2o27bobo3bo$18bo16b2o3bo$14b2o2bo13bo6bo$13bo4bo11b3o2b5obo$14bo14b
o5bo4bobo$10b2o18bo5b3obobo$10b2o17b2o7bob2o$20b3o$18b2obo$17bobob2o6b
2ob2o$2b2o12b2obobo8bobo2bo$3bo11bo4bo7bo5b2o$3o16b2o7b4o$o16b2o12bo$
11b2o17bo$12bo18b3o$9b3o21bo$9bo8bob2o$13b2o3b3o10bo$13bo5bo9b3o3b2o$
10b2obo15bo6bo$10b2ob2o10b4ob6o$28bobo$21b2o3bobobob2o$21bo2bobobobob
2o$22b2o5bo!

There is probably a way to make these more compact.

Some other random small reductions:
gun_111 (3630 -> 3564):

Code: Select all

x = 66, y = 54, rule = B3/S23
41bo11b2o$40bobo10b2o$32bo3b2o2bobo$31bobo2bo2b2ob2o$17b2o12bobo3bobo$
18bo13bob4o2bob2o$18bobo13bo3bobob2o$19b2o12bo3bobo$32bo3bobo$32b2o3bo
$5b2o$5b2o2$45b2o$34bo10b2o3b2o$34b2o14bobo7b2o$29b2o2bobo14bo8bo2bo$
2o26bobo29b2obo$2o26bo34bo$28b2obo31b2o$30b2o16b2o$49bo$20b2o24b3o7bo$
20b2o11b2o11bo8bobo$33bo21bo2bo$34b3o20bo$36bo$61b2o$17bo23b2o17bo2bo$
18b2o22bo17bobo$17b2o23bobo16bo$32bo10b2o12b3o$30b3o24b2o$29bo$29b2o$
14b2o48b2o$15bo48b2o$15bob2o$16bo2bo16b2o$17b2o16bo2bo$11b2o22bo2bo$
11bobo20b2ob2o$13b3o19b2o$12bo3bo$11bobobo$11b2o2bo$40bo3b2o$15b2o22bo
bo3bo$35b2obobo3bo$17b3o15b2obo4bo8b2o$16bo22b5obo7bo$16bobo3b2o7b2obo
b2obo4bobo3b3o$14bobobobo2bo7bob2obo2bob2o2bo4bo$14b2o5b2o15b2obob2o!

gun_106 (3266 ->3174):

Code: Select all

x = 69, y = 46, rule = B3/S23
12b2o3b2o$12bobo2bo$8bob2o2bo3bo39b2o3b2o$8b2obobob4o5bo33b2o2bob3o$
12b2obo8b3o10b2o23bo4bo$17b2o8bo9bo20b4ob2o2bo$18bo7b2o7bobo14b2o4bo2b
obobob2o$18bob2o13b2o15bo8bobobobo$13b2o2b2obo2bo30bo7b2obobo$13b2o5bo
b2o26b5o11bo$20bo10bo18bo$19b2o8bo2b2o19b4o$12b3o13b2ob2o20bo2bo4b2o$
11b2o2bo13bobo29b2o$6b3ob2o17b2o10bo6b2o$5bo10bo11b3o8b2obo5bo2bob2o$
5bo3b3o4bo11b3o2bobo2b2o10b2ob2o$4bo5bo17bobo2bo2bobo3b2o$2b5o5bo2bo
12bo2bo5b5o$2o3bobo2bo2bobo17bo5bo11bo$4b2o2bobo2b3o11bo4b3o3bo10b3o$b
ob2o8b3o11bo10bo9bo15b2o$2bo10b2o17b2ob3o10b2o14bo$12bobo13bo2b2o32b3o
$11b2ob2o13b3o35bo$10b2o2bo8b2o17b3o$12bo10bo17bo4bob2obo$20b2obo5b2o
10bo3bobo3bo$20bo2bob2o2b2o10bo4bo4bo$7b2o13b2obo16b2o5b2o$6bobo7b2o7b
o18bo3bo$6bo9bo8b2o17bo3bo$5b2o10b3o8bob2o13b3o$19bo5b4obobob2obo$25bo
3bo2b2ob2obo18bo$26bo2bobo6bo16b3o$25b2o3b2o6bobo13bo$39b2o7b2o3bobo$
43b2o3b2o4b2o$42bobo$42b2o10b2o$55bo$48b2o5bobo$49bo6b2o$46b3o$46bo!

gun_112 (1406 -> 1292):

Code: Select all

x = 38, y = 34, rule = B3/S23
6b2o8b2o$4bo2bo8b2o$4b2obob2o$5bobo2bo$2b3o2bobo15b2o2b2o$bo3b3o8bo8bo
bo2bo$bob2obobo7b2o4b2obob2o$2obo4bo6bo2bo3bo2bobo3bo$bobo3b2o8b3o3bob
o2b4o$bob2o2b2o6b3o7b3o$2obo3b2o6b3o6bobob2o$3bo4bo6bobo6bo4bo$3b2obob
o6b3o6b2o3bobo$5b3o7b3o6b2o4b2o2bo$b4o2bobo3b3o8b3o5b3o$bo3bobo2bo3bo
2bo4bo2b2o3b2o$4b2obob2o4b2o5bo3bo4bob2o$4bo2bo8bo5bo8bo2bo$6b2o20b2ob
2o$12b2o12b2obo$13bo7bo4b2obo4b2o$10b3o9bo6b2o3bobo$10bo5bo3b3o6bo5b3o
$15bobo12bo5b2o$7bo8bo12b2o2b2o$6bobo24b3o$7bo11bo$12bo5bobo7bo$6b2obo
b2obo2bo2bo8bo4b2o$9b4obo2b3o7b3o4b2o2$9b3o$6b5o6b2o$7bo9b2o!

[Anivec]

gun_1599 (infinity -> 5395):

Code: Select all

x = 83, y = 65, rule = B3/S23
77bo$75b5o$74bo5bo$63b2o10b3o2bo$64bo13bob2o$64bob2o9b2o3bo$59bo5bo10b
o2bobo$59b3o7bo5b2ob2ob2o$62bo7bo4bo$61b2o4bobo5b2ob2ob2o$76bo2bobo$
77b2o3bo$78bob2o$14bo60b3o2bo$14b3o57bo5bo$17bo57b5o$16b2o59bo2$24b2ob
2o17bo$25bob2o17b3o$19bo5bo23bo$18b3o3b2o10b2o10b2o$17b2obo8bo7bo$5bo
21b3o7bobo11bo$5b3o18bo11b2o10b3o$8bo17b2o21bo2b2o$7bo12b2o27b2o3bo13b
o13bo$7b4o7b2o34b2o11bobo10bobo$3b2o5bo7bo4bo30b3o10bobo11b2o$3bo2bobo
8bobob2o45bo$5b2ob2o6b2obobo$17bob2o$16b3o40b2o$27b2o30b2o7b2o$27b2o
23b2o14b2o$24bo27bo$8b2o10bo4bo27b3o$7bobo10bo2b2o30bo$7bo12bo15bo3b2o
$6b2o27bobo3bo$18bo16b2o3bo$14b2o2bo13bo6bo$13bo4bo11b3o2b5obo$14bo14b
o5bo4bobo$10b2o18bo5b3obobo$10b2o17b2o7bob2o$20b3o$18b2obo$17bobob2o6b
2ob2o$2b2o12b2obobo8bobo2bo$3bo11bo4bo7bo5b2o$3o16b2o7b4o$o16b2o12bo$
11b2o17bo$12bo18b3o$9b3o21bo$9bo8bob2o$13b2o3b3o10bo$13bo5bo9b3o3b2o$
10b2obo15bo6bo$10b2ob2o10b4ob6o$28bobo$21b2o3bobobob2o$21bo2bobobobob
2o$22b2o5bo!

I am going to point out the fact that any object including guns cannot start with an infinite bounding box.

[confocaloid]

p2025 glider gun with bounding box 88-by-73 (down from infinity, there is no gun_2025 on Catagolue yet):

Code: Select all

x = 88, y = 73, rule = B3/S23

gun_1599 (infinity -> 5395):

Code: Select all

x = 83, y = 65, rule = B3/S23

I am going to point out the fact that any object including guns cannot start with an infinite bounding box.

Speaking for myself here, I was referring to the simplified description of an algorithm to find the minimum value in a set, which "begins with infinity":

Code: Select all

min := INFINITY
for each value in input do
    if value < min then
        min := value
    endif
endfor

In an actual implementation, sometimes "INFINITY" would be replaced with the highest possible value for the datatype, or with a "sufficiently high value", or the algorithm might be modified to avoid the need for that.

[ElijahKen]

gun_1599 (infinity -> 5395):

I am going to point out the fact that any object including guns cannot start with an infinite bounding box.

By saying infinity, I meant that there was no previous record (and so anything is better, just like any finite number is less than infinity).

Having said that, rearranging the p123 LCM mechanism makes it smaller:
gun_861 (5032 -> 4182):

Code: Select all

x = 82, y = 51, rule = B3/S23
22b2o5bo$21bo2bobobobob2o$21b2o3bobobob2o$28bobo$10b2ob2o10b4ob6o$10b
2obo15bo6bo$13bo5bo9b3o3b2o36bo$13b2o3b3o10bo39b2o4b2o$9bo8bob2o49b2o
2b2ob3o$9b3o21bo38bo8bo$12bo18b3o43b2obo$11b2o17bo41bobo3bobo$o16b2o
12bo40bob2o$3o16b2o7b4o39bo8bo$3bo11bo4bo7bo5b2o31bo4b3ob2o2b2o$2b2o
12b2obobo8bobo2bo31b3o4b2o4b2o$17bobob2o6b2ob2o36bo8bo$18b2obo47b2o$
20b3o$10b2o24b2o3bo$10b2o24b2o2bobo$14bo25bobo$13bo4bo10b2o5b4obo3bo9b
o$14b2o2bo10bobo3bo3bo5b3o5b3o$18bo12bo2bobo3bo7bo3bo$6b2o23b2o2bobo3b
o5b2o3b2o27bo$7bo12bo15bo3b2o37bobo$7bobo10bo2b2o55b2o$8b2o10bo4bo23b
3o$24bo24bo2bo$27b2o19bo3bo$27b2o19b4o$16b3o30bo$17bob2o$5b2ob2o6b2obo
bo30b2o22bo$3bo2bobo8bobob2o28b3o21bobo$3b2o5bo7bo4bo27bo2bo20bobo$7b
4o7b2o30bo25bo$7bo12b2o27bo$8bo17b2o21bo4bo$5b3o18bo11b2o27b2o$5bo21b
3o7bobo11bo2bo4bo7b2o7b2o$17b2obo8bo7bo13b2o6b3o14b2o$7bo10b3o3b2o10b
2o24bo$2b2o3b3o9bo5bo35b2o$2bo6bo15bob2o$3b6ob4o10b2ob2o$8bobo$5b2obob
obo3b2o$5b2obobobobo2bo$9bo5b2o!

gun_1599 (5395 -> 4641):

Code: Select all

x = 91, y = 51, rule = B3/S23
22b2o5bo$21bo2bobobobob2o$21b2o3bobobob2o$28bobo$10b2ob2o10b4ob6o$10b
2obo15bo6bo$13bo15b3o3b2o$13b2o16bo$9bo75bo$9b3o21bo49b5o$12bo18b3o48b
o5bo$11b2o17bo40b2o10b3o2bo$o21bo8bo40bo13bob2o$3o20b2o3b4o40bob2o9b2o
3bo$3bo24bo5b2o31bo5bo10bo2bobo$2b2o26bobo2bo31b3o7bo5b2ob2ob2o$19bo9b
2ob2o36bo7bo4bo$18b3o48b2o4bobo5b2ob2ob2o$17bob2o63bo2bobo$16b2o2b2o
14b2o3bo43b2o3bo$17b4o15b2o2bobo43bob2o$18b3o19bobo40b3o2bo$29b2o5b4ob
o3bo9bo26bo5bo$29bobo3bo3bo5b3o5b3o27b5o$31bo2bobo3bo7bo3bo32bo$6b2o
23b2o2bobo3bo5b2o3b2o$7bo28bo3b2o$7bobo$8b2o$18b3o$18b4o$17b2o2b2o37bo
$18b2obo37bo2bo$18b3o37b2o3bo$5b2ob2o9bo41bobo12bo13bo$3bo2bobo44b2o2b
o4b2o11bobo10bobo$3b2o5bo42b2o3b2o15bobo11b2o$7b4o3b2o60bo$7bo8bo$8bo
17b2o$5b3o18bo11b2o27b2o$5bo21b3o7bobo11b2o6bo7b2o7b2o$29bo7bo13b2o6b
3o14b2o$7bo16b2o10b2o24bo$2b2o3b3o15bo35b2o$2bo6bo15bob2o$3b6ob4o10b2o
b2o$8bobo$5b2obobobo3b2o$5b2obobobobo2bo$9bo5b2o!

gun_123 x 11 = gun_1353 in 5110 (no previous record):

Code: Select all

x = 73, y = 70, rule = B3/S23
56b2o$55bo2bo12b2o$71bo$43b2o24bobo$39b2o3bo24b2o$39bo2bo8bo12bo$37b2o
2b3o6bobo10bobo$36bo2b2o9bobo11bo$36bobo2b3o25b2o$34b2obob2o2bo25bobo$
34bo2bo3b2o28bo$35b2ob2o31b2o$36bobo$36bo2bo$37b2o24b2o$58b2o4bo$58b2o
3bo$37bo24bo$35b3o20b5obo$28b2o4bo14bo8bo4bobo$28bobo3b2o12bobo9bo2bob
o$26bobob5o13bobo8b2o3bo$26b2obob3o15bo$29bo3b2o18b2o$26b2obo2bo20bobo
$27bob2o24bo$27bo27b2o$25bobo$23b3ob2o$22bo11bo4b2o$23b3ob2o5bo4bobo$
25bob2o5bo6bo$41b2o$5b2o$4bobo7b2o$4bo9bo$b2ob2o3b2o5bo$b2obobo3bo4b2o
5b2o$4bo5bob2o8bo$b4ob2o3bobob2o2b2obo$o4bo7bo2bo2bobo19b2o$b4o8b2o15b
2o9bo3b2o$2bo27b2o7bobo3b2o$2bo2bo14b2o17b2o$2b3o13b2obo4b3o14b4o$b2o
14bo3bo21bo2bo$bo15b2o2bo14bo$obo13bo5bo9bo4bo$b2o12bo5bo9b2o5bo$15bo
3bo11b2obo2bo$15bo19bo$13bo2bob2o11bo3bo$12bo5b2o9bo5bo12b2o$13bo4bo9b
o5bo13bobo$14bo14bo2b2o16bo$4bo2bo21bo3bo16b2o$4b4o14b3o4bob2o$10b2o
17b2o$4b2o3bobo7b2o$4b2o3bo9b2o15b2o$8b2o17b2o5bo2bo$28bo5b2obobo$25b
3o9b2obo$25bo8b2o4bo$34bo5b2o$36bo$14b2o19b2o$13bobo$13bo$12b2o!

Another new (somewhat trivial period, but still below 200) gun_1233 in 6522:

Code: Select all

x = 84, y = 78, rule = B3/S23
30b2o$30bobo$32bo4b2o$28b4ob2o2bo2bo$28bo2bobobobob2o$31bobobobo$32b2o
bobo$36bo2$22b2o$23bo7b2o$23bobo5b2o$24b2o2$47bo$47b3o$50bo$49bobo$49b
obo$34b2o14bo$34bo$35b3o$37bo$46bobo$47b2o16b2o$47bo17b2o4$45b2o$3b2o
39bobo$4bo39bo$2bo10b3o27b2o7b2o$2b5o8bo5b2o29b2o$7bo6bo6bo$4b3o12bobo
38b2obo$3bobo13b2o39b2ob3o8bo2b2o$3bob2o59bo7b4obo$b2o2bo2bob2o48b2ob
3o13bo$o2b2o6bo47bo2b2o8b7ob2o$2obo5b2o42b2o3bobo10bo6bobo2bo$3bo36bo
11bobo2bobob2obo6b2o2b2obo3b2o$3b2o35b3o11bo3bo2bob2o10b2ob2o$43bo17bo
$42b2o16b2o$11b2o30b3o11bobo2b2o11b2o$12bo31b2o11b2o2bo2bo10b2ob2o$9b
3o31b2o17b2o2b2o6b2obo$9bo33b2o22bo$48b2o17bobo$48bo14b2o3b2o$47bo15bo
$46b3o2b2o8bobo19bo$46b2obo11b2o4bo13bobo$46b2ob2o14b3o14b2o$47bobo14b
o$48bo15b2o$78b2o$78bo$79b3o$81bo3$54b2o$47b2o4bobo8bo$47b2o4bo9bobo$
52b2o9bobo$64bo4$61b2ob2o$57b2o2b2obo3b2o$57bo6bobo2bo$58b7ob2o$65bo$
60b4obo$60bo2b2o!

[iNoMed]

Here's a somewhat-unexpected reduction of the period-690 glider gun (The quintessential LCM of p30 and p46 technology, by the way) from 51x24 (1224-cell BB) to 49x22 (1078-cell BB), achieved by replacing the queen-bee shuttle technology in the p30 portion with a more-compact alternative oscillator:

Code: Select all

x = 47, y = 22, rule = B3/S23
5b2o4b2o$5bobo2bobo$7bo2bo$6bo4bo$6bo4bo$6bo4bo32b2o$8b2o34b2o$b3o$30b
2o$o3bo15b2o7bobo13b2o$o3bo6bo8b2o7bo15b2o$9bobo17b3o$b3o8b2o$11b2o2$b
3o25b3o$29bo15b2o$o3bo24bobo13b2o$o3bo25b2o2$b3o40b2o$44b2o!

Edit: Period-360 glider gun reduced from 37x33 (1221-cell BB) to 40x23 (920-cell BB) by entirely replacing a period-doubled LCM(45,20) build with a LCM(30,72) build closely related to the p690 gun reduction:

Code: Select all

x = 38, y = 21, rule = B3/S23
5b2o4b2o8bo10bo$5bobo2bobo6b3o10b3o$7bo2bo7bo5bo4bo5bo$6bo4bo5bob6o4b
6obo$6bo4bo5bobo14bobo$6bo4bo4b2o2bo2b2o4b2o2bo2b2o$8b2o8bob2o2bo4bo2b
2obo$b3o14bobo12bobo$19bo14bo$o3bo$o3bo6bo$9bobo$b3o8b2o5b2o12b2o$11b
2o6b2o12b2o2$b3o26b2o$29bob2o$o3bo24bob2o$o3bo25bo2$b3o!

[Period1GliderGun]

Reductions/explicit examples of four LCM gun periods:

Code: Select all

x = 235, y = 80, rule = B3/S23
68b2o$67bo$67bo2bo$70bo$77b2o$52b2o11b2o2bo6bo2bo$53bo12b5o5bob2o121b
2o$53bobo8bo5b2o5bob3o119b2o$5b2o47b3obo5b2o5bo8bobo$5bobo3bo4bo39b2o
bo5b5o12bo$6b2o4bo2bobo4b2o32bo2bo6bo2b2o11b2o116bo7b2o3b3o$5b2o3bob2o
2bo4bobo33b2o140bobo3bo3bo3bobo$5b2o2b2o2bo7bo43bo134bo4bo4bo$4b2o6b2o
5b2obo34b2o6bo2bo128b3o5bo4bo$9b2o2bo5bo2bo32bo2b3o7bo128bo7bo7b2o12b
o$9bobo9b2ob2o29b2o4bo4b2o138b2ob2o2b2o12bobo$10bo4b2o7bobo33b2o137b2o
5b2obo16bobo$14b4o6bobo171bo22b2o5bo$14b5o4b2ob2o173bo9b2o7bo2bo$8bo9b
2o97b2o5b2o73b2o8b2obo8b2o$7bobo13b2ob2o85b2o3bo5bo3b2o79b3o$7bobo13b
2obo86bo15bo80bo$5b3ob2o4bo12bo85bo13bo69bo$4bo22b2o168bobo$5b3ob2o187b
o$7bob2o3$117b2o5b2o89bo$117b2obobob2o88bobo$3b2o112bo2bobo2bo89bo$3b
2o112b3o3b3o77bo$11b3o69bo118b3o$11bo2bo66bobo107b2o8bob2o8b2o$2b2o10b
o13bo35bo17b2o106bo2bo7b2o9bo$3bo6b2o14bobo34bobo19b2o98bo5b2o22bo$3o
7b3o14b2o27b2o4bo3bo18bobo97bobo16bob2o5b2o$o29b2o23bobo4bo3bo20bo96b
obo12b2o2b2ob2o$17b2o11bobo22bo6b4o21b3o96bo12b2o7bo7bo$17bobo12bo21b
2o7bo26bo112bo4bo5b3o$19bo12b3o54b2o112bo4bo4bo$19b2o14bo162bobo3bo3b
o3bobo$34b2o118bo43b3o3b2o7bo$2o152bobo$bo115b2o34bobo$bobo113b2o36bo
55b2o$2b2o185b2o20b2o$20bo168b2o$8b3o7b3o129bo2b2o$9b2o6bo131b7o$6bo10b
2o128bo3bo2bo2b2o$6bo2bo63bo7b2o64bo3bo4bobo31bo5bo$7b3o61b4o6bo65bo4b
2o3bo31b3o3b3o$16b2o52bo3bo4bobo66b2o4bo33b2o2bobo2b2o$16b2o52bo3bo4b
2o43b2o24b2ob2o2bo4b2o24b2ob2ob2ob2o$71bobo49bobo24b2obo3b2obo2bo27b2o
b2o$72bo50bo32bobob3o26bobo3bobo$122b2o32bobo29bo2bo3bo2bo$145b2o10bo
b2o30bo3bo$10b2obo124bo6bo9bobobobo26bobo5bobo$10b2ob3o123bo6b3o6b2o3b
o28bo7bo$16bo120b3o8bo$10b2ob3o$9bo2b2o126b2o$9b2o129bo$141b3o$143bo$
143bobo$144b2o2$185b2o13b2o25bo$185b2o2b2o5b2o2b2o26bo$189b2o5b2o28b3o
2$75b2o152b2o$75bo153bo$76b3o151b3o$78bo153bo$232bobo$233b2o!

p340 (2574 -> 1653), p1806 (2848 -> 2496), p2714 (infinity -> 3082), p2898 (infinity -> 2193)

[iNoMed]

p780 gun reduced from 63x38 (2394-cell BB) to 43x32 (1376-cell BB) using a completely-different LCM(30,52) mechanism from the previous design (Which more closely resembled the p570 and p870 guns) - another period down in my quest for extreme optimisation of the various p30n gun periods using LCM technology:

Code: Select all

x = 43, y = 32, rule = B3/S23
26b2o4b2o$26bobo2bobo$28bo2bo$27b2o2b2o$26b3o2b3o$28bo2bo$36bo$35bobo$
14bo20bobo$14bo19b2obob2o$6bo8bo18bo2bobo$6b3o19bo6bobo2bo$9bo18b3o4bo
2bobo$8b2o17bo9b2ob2o$28b2o5bo4bo$3bo24bo6b5o2bo$2bo2bo34b3o$2bo2bo31b
3o$4bo9bo22bo3b2o$13bobo23b2obo$12b2ob2o20bo2bo$12bo2bo21bobo2bo$11b2o
b2o20bo2bob2o$12bobo4b2o15b2obobo$2b2o9bo6bo16bobobo$2bo17bob2o13bobob
2o$obo14b2ob2obo14bo$2o6b2o8bo$4b2o2b2o6bobo$3bobo10b2o$3bo$2b2o!

Edit on January 29th: p930 gun reduced from 56x50 (2800-cell BB) to 60x37 (2220-cell BB), achieved by replacing a period-sextupled p155 gun with an LCM(186,30) design relying on a familiar spark generated by a BRx46B conduit (accomplishing a notable goal in my quest for LCM-based optimisation of the p30n guns - Every single three-digit p30n gun period is now below a 2500-cell bounding box):

Code: Select all

x = 60, y = 37, rule = B3/S23
28b2o$28b2o$6b2o$6b2o7b2o20b2o$15b2o19bobo$36b2o$40b2o$7bo32bobo$6bobo
33bo$6bobo33b2o5bo$7bo29b2o8b3o$37b2o7bo$46b2o3$24bo18b3o$23bobo17b3o$
24bo17bo3bo2$19bo21b2o3b2o$18bobo$19bo38bo$57bobo$58bo$49b2o2bo3bo$5b
2o43b4o3bo$5b2o29bo15bo3bo$2o11b3o19bobo11b5obo$bo13bo19bobo11bobobobo
$bobo10b2o20bo13b2obobobo$2b2o48bobob2o$6b2o44bobo$5bobo19b2o24b2o$5b
2o20b2o7b2o$36b2o$14b2o$14b2o!

[Period1GliderGun]

p189 reduction (2040 -> 1848) via the new p63:

Code: Select all

x = 56, y = 33, rule = B3/S23
29b2o$27b3o$22b2o2bo4bo$22bo3bob2ob3o$23b3obobo4bo$25bobo3b3o$25bobob
obo$26b2ob2o3$52b2o$29bo16b2o4b2o$29bo12b2ob2obo$41b4obob3o$27bobobo$
11bo15b5o13b3obob4o$11b3o10b2o4bob2o13bob2ob2o$14bo8bo4bo2b2obo7b2o4b
2o$13b2o14bobo2b3o5b2o$23b2o5b2o$4b2o21b5o$3bobo23bo10b2o4bo$3bo35bob
o4bobo$2obo7bo14b2o10b3o6bo2bo$2obob2o2b3o15bo10b2o5bobob3o$3bob2o2b2o
13b3o5b2o5b2o3b4o3b2o$2obo7bo12bo7b2o6b3obobo5b2o$o2b4o3bo10b2obo16bo
2bo6b3o$b2o3bo3bo10bobo19bobo4bobo$3b2o18bobo19bo4b2o$3bo13bo5b2obo$4b
o13bo7bo$3b2o11b3o7b2o!

[ElijahKen]

Small reductions to two guns:
gun_416 (1980 -> 1680):

Code: Select all

x = 47, y = 35, rule = B3/S23
36b2obo4b2o$26bo9bob2o4b2o$25bobo$11b3o12bo$9bob3o22b2o6b3o$8bobobo23b
2o7b2o$8bo2bo8bo21b2o$9b2o9bo21b3o$2b2o9b2o5bobo20bobo$o2b3o8b2o2bo4b
2o19b2o$2o4bob2o4b2o2bo4b2o$2b2obo5bo$2bo2bo5bo$3bobo5bo13bo18b2o$3o3b
ob2o15bobo15bo2bo$o2b3o11b2o6b2o15bobobo$3bo8b2o3b2o22b3obo$12b2o14bo
12b3o$27bobo$28bo$4bo32b2o$3bobo18b3o7b2obo$4bo18b5o3b2obo2bo$23b2o2bo
2bo3bob2o$31bobo4bo$31bo$7b2o27bo2bo$7b2o17b2o8bobo$2b2o22b2o9bo$bobo$
bo$2o13b2o$15bo10bo$8b2o6b3o8bo$8b2o8bo6b3o!

gun_428 (3472 -> 3456):

Code: Select all

x = 64, y = 54, rule = B3/S23
3b2o3b2o2bo2bob2obo5bo$3bobobobo2b4obob2o3b3o$5bobo8bo6bo$2o2bob2o3bob
3o7b2o$o10b3o$b9o9bo$7bo10bobo$b2obobo5b2o3bo2bo$b2ob2o6b2o4b2o4$2o$bo
$bobo$2b2o3$2o4b2o$bo3bo2bo$o5bobo$2o5bo41b2o$2bo46b2o5b2o$2obo52b2o$b
obo$bob2o2b2o$2o3bob2o20bo24b2o$3b2o22b3o24b2o$4bo21bo33b2o$2o24b2o32b
2o$o4bo5b2o$b3obo6bo$3bobobo4bob2o$b3obo2bo4bo2bo16bo$o4bob2o5b2o17b2o
$2o3bo26bob2o$5bob2o23bobo$3bobob2o18bo4b2o$3b2o7bo$11bobo$11bobo24bo
3b2o$8b2obob2o22bobo3bo$7bobobo3bo20bobo3bo19b2o$6bobo3b5obo13b2obobo
3bo20bo$5bob3o6bo2bo12b2obo2b4obo16bobo$6bo2bob2o2b2o19bobo3bobo15b2o$
9bobo20b2ob2o2bo2bobo$10bobo3bobo14bobo2b2o3bo$7bo2bobobobo2bo13bobo$
7b2obo2bo3b2obo13bo$10bo3b3o3bo$10b2o4bo3b2o9bo$32bo23b2o$30b3o23b2o!

Gun 57 continues to frustrate me. Here is a very close partial (the beehive just needs to be restored):

Code: Select all

x = 54, y = 35, rule = B3/S23
30b2o5b2o3b2o$28bo2bo5bo4bobo3bo$38b3obo2bobobo$40bob4ob2o$28b2o12bo$
41bobo3b4o$40b3ob3o4bo$34bo5bobo2b4obobo$32b2o5b2o9bobo$26b3o2b3o6bob
2o2bobo3b2o$26b2o2b3o6bobob3o4bo$14bo12bo2bo8bo4bo4bo$7b2o3b5o7bo2bo4b
obo3b2o2bobo2bobobo$8bo2bo5bo5bo2bobo3bo5b2o2bob4o2bobo$8bobob2ob2o7bo
bo5b3o3b2o2bo5bobobo$6b2o2bobobo23b2o2bob2o2bo2bo$5bobobo4bo24bo4bobob
o$2bo2bo2b2obo2b2o23bobobo2b2o$bobobo5bo2b2o3b3o5bobo7b2ob2obobo$bobo
2b4obo2b2o5bo3bobo2bo5bo5bo2bo$2bobobo2bobo2b2o3bobo4bo2bo7b5o3b2o$4bo
4bo4bo8bo2bo12bo$3bo4b3obobo6b3o2b2o$2o3bobo2b2obo6b3o2b3o$bobo9b2o5b
2o$bobob4o2bobo5bo$2bo4b3ob3o$3b4o3bobo$11bo$5b2ob5o7b2o2bo$6bobo3bo8b
3o$6bo3b2o10bo$7b3o8b2o$9bo7bo2bo$18b2o!
[[ STOP 57 ]]

[iNoMed]

Here is a solution that is quite a bit smaller than the existing p57 gun:

Code: Select all

snip

I found it by first finding a p3 reaction that could replace the beehive. I then used a little Python script I wrote to convert the JLS save file to a LLS input file, and completed the search with LLS.

I suspect it can be reduced somewhat with an alternate p3. I might look for a smaller solution later. Anyone else is welcome to try in the meantime.

Here is the previous gun_57 for reference:

Code: Select all

snip

Here's a miniscule reduction to the p57 gun design from 55x50 to 54x50 - not with the slightly-bulky B-to-glider but instead with the other p3 domino sparker (directly ripped from the previous p57 gun design):

Code: Select all

x = 54, y = 50, rule = B3/S23
31b2o11bob2o2b2obo$31b2o11bobo3bob2o$43bo2b3o$45b2o$43bo2b2o2bo$39b2ob
2obo$39b3o7b2obo$38bo6bo3bo2bo$41b3ob2o2bo3bo$38b2ob3obo4b3o$43b2ob4o$
15bo24bob2o5bob2o$13b5o22b2obo4bo2bo$7b2o3bo5bo12bo8bo3bob2obobo$7bobo
bobob3o10bob3o7bo3bob2obob2o$9bobobo11b2o5bo7b2obo4bo3bo$8bobob2obo24b
ob2o5bobo$4b2obo2bobob2o7bo5b2o12b2ob4ob2o$5bob3o2bo2bo7b3obo10b2ob3ob
o4bo$4bo5bobo2bo8bo16b3ob2obobo$4bob2o2b3ob2o22bo7bobob2o$3b2obo2bo3bo
bo23b5o4b2o2bo$10bo2b2o23bo4bo3bo3bo$3b3o2b2o4bo25b2o3b2ob3o$obo2bo3bo
b2o26b2ob5obo$2ob2o2bobo3b2obo25bo5bo$3bobo3b4o3bo21bo2b2obobob2o$3bob
ob2o8bo21b2obob2obo2bo$2b2o6b7o25b2o5b2o$5b5o29b2o4b4o$2b2o6b2obobobo
20bo2b2o2bo2bo$bo2b2o3b2o2bo2bob2o19bo2bo$b2obob4o6b2o22b2o$2bob2o2bo
3b3obo3b2o$2bo2bob2o2bo5bobo$ob2obobo3b5obob2o2bo6bo$2o2bo4bobob2o8bo
7bo$3bo4b2obobo3bob2o2bo5b3o$3o7bo4bobobobo$o9bobob2obo3bo2bo$7b2obo6b
7obob2o$8bo2b2ob3o2bo5bobo$8bo5b2o2b2o2bob2o2bo$9b4o9b2o2b3o$11bob6ob
2o3bo$15bo2bo7bo$20b7o$19b2o$23b2o$23b2o!

[vilc]

Here is a solution that is quite a bit smaller than the existing p57 gun:

Code: Select all

snip

I found it by first finding a p3 reaction that could replace the beehive. I then used a little Python script I wrote to convert the JLS save file to a LLS input file, and completed the search with LLS.

I suspect it can be reduced somewhat with an alternate p3. I might look for a smaller solution later. Anyone else is welcome to try in the meantime.

Here is the previous gun_57 for reference:

Code: Select all

snip

Here's a miniscule reduction to the p57 gun design from 55x50 to 54x50 - not with the slightly-bulky B-to-glider but instead with the other p3 domino sparker (directly ripped from the previous p57 gun design) [...]

Reduction to the p3 catalyst that saves one more column and two rows. Locally optimized for bounding box and population using LLS.

Code: Select all

x = 53, y = 48, rule = B3/S23
30b2o11bob2o2b2obo$30b2o11bobo3bob2o$42bo2b3o$44b2o$42bo2b2o2bo$38b2ob
2obo$38b3o7b2obo$37bo6bo3bo2bo$40b3ob2o2bo3bo$37b2ob3obo4b3o$42b2ob4o$
14bo24bob2o5bob2o$12b5o22b2obo4bo2bo$6b2o3bo5bo12bo8bo3bob2obobo$6bobo
bobob3o10bob3o7bo3bob2obob2o$8bobobo11b2o5bo7b2obo4bo3bo$7bobob2obo24b
ob2o5bobo$3b2obo2bobob2o7bo5b2o12b2ob4ob2o$4bob3o2bo2bo7b3obo10b2ob3ob
o4bo$b3o5bobo2bo8bo16b3ob2obobo$o2bob2o2b3ob2o22bo7bobob2o$bobobo2bo3b
obo23b5o4b2o2bo$2obo5bo2b2o23bo4bo3bo3bo$2b2o3b2o4bo25b2o3b2ob3o$2bobo
3bob2o26b2ob5obo$b2obobobo3b2obo25bo5bo$o2bob2ob4o3bo21bo2b2obobob2o$
2o5bo8bo21b2obob2obo2bo$2b4obob7o25b2o5b2o$2bo3bobo29b2o4b4o$3bo2bo2b
2obobobo20bo2b2o2bo2bo$4bob4o2bo2bob2o19bo2bo$3b2obobo6b2o22b2o$2bo4bo
3b3obo3b2o$bob3o4bo5bobo$bobobo4b5obob2o2bo6bo$2b2o4bobob2o8bo7bo$5b4o
bobo3bob2o2bo5b3o$2b2o5bo4bobobobo$bo2b4obobob2obo3bo2bo$2bobo2bobo6b
7obob2o$3bo6b2ob3o2bo5b2obo$13b2o2b2o2b2o$10b2o9bobob2o$9bo3b7obob2obo
$9bobobo2bo3bobo$10bobo6bo2bo$11bo8b2o!

[iNoMed]

gun_19 reduced from 160x132 (21120-cell BB) to 123x116 (14268-cell BB) using the new single-engine p57 gun design - Doesn't use vilc's updated B-to-glider though sadly so I'll post the prototype I currently have built:

Code: Select all

x = 123, y = 116, rule = B3/S23
35b2o5b2o3b2o$35b2o5bo4bobo3bo29b2ob2o9b2o$43b3obo2bobobo29bobo3b2o5bo
$45bobob2ob2o30bo2b4obobo3bo$51bo33bobo4bob4obobo$45bo2b8o30bo3b2obo5b
ob3obo$45bo3bo6bo30b3obob4o2bo4b2o$47b3o2bob2obo35bobo3b4o$32bo2b2o7b
2ob2obo2bo3bo24bo4b2obo2bob5o2bob2o2b2o$31bo3bobo9b2obo3bo2b2o21b3o2bo
2b2obobobo3bo4bobo2bo$39bo4bobo3bo3bo24bo5b2o6bo2b3o3bo4b2o$19bo10bo2b
obobo6bo2bo5b2o24bo2b3o6b2obobo3bobob3o$17b5o7bo3bobo9bo3bo2bobobo21b
2obo3b4o3bobobob4o5b2o$11b2o3bo5bo6bob2obobobo3bo2b3ob4o2bobo21bob4o2b
obo2bobobob3o2b2obo2bo$11bobobob5o7b2o5bo3bobo2b3o5bobobo20bo2bo2b2o3b
o4bobo3bo2b2o2b2obo$13bobobobo9b2o6b2o6bo3b2o2bo2bo21bob2obo2bob2ob2ob
o7b4o2bobo$12bobobo2bo24bo2bobobobo23b2o4b2o2bobo4bobobob2o4b3ob2o$8b
2obo2bo3bo6b2o6b2o9bobobo2b2o25bo2bo7b2obobo13bobo$9bob2obob3o2bobo3bo
5b2o7b5obobo27bobob7o3bo2b2o6b2o3bobo$8bo7b3o2bo3bobobob2obo6bo5bo2bo
26b2o3bo2bobo2bobo16bo$8bob2ob2o3bo9bobo3bo7b4obobo25bo2bob2o2b2obo$7b
2obo4bo3bo6bobobo2bo10bo2b2o26b2ob2obo3bobo2bo$10bo3b4obo4bo21bo29bobo
b2o2bo2b3o$7b6o2b2o9bobo3bo12b2o26bo2bo3bobobob2o16bo$4bobo4bobob2o2bo
7b2o2bo40bobobo5bo3b2o15b2o$4b2obo3bobo59bo2bobobo2bo18bo2bo$7bobobob
5obobo54bobob3o20b2o$7bob4o8bo23b2o4bo25bobo$6b2obo4b7o4b2o17bobo4b3o
25bob2o$8b6o11b4o14bo10bo24b2obo$6b2o6b3obob3o3b2obo9b2obob2o7b2o30bo$
5bo2b2o2bobo3bo9b2o8bobobo3bo37bo23b2o$5b2obo2bo8bobobo13bo4b3o10b2o
26b3o20bo2bo10b2o$6bo2bo2bo3b5o4bo13b3obo5bo6b2o50b2o11b2o$6bo2bob2o2b
o2bo2bo3bo15bo6b2o58bo$4bob2obobo3b2o2bob7o14bobobo$4b2o2bo4bobo2bo2bo
4b2o16b2o2bo$7bo4b2obobo3b4o20bob2o8b2o$4b3o7bob2obobobob2o18bobo9bobo
6bo36bo$4bo9bobob2obo6bo15b2o2bo8bo8b3o28bob2obobo3b2o11b2o$11b2obobo
4b2o3b2obob2o14b2o20bo27b2obobobo15bobo$12bo2b4obo2b3o3bobo36b2o32bob
3o4b2obo5bo$12bo5bo2bobob2ob2o2bo68b2obo2b4o3bob2ob2o$13b4o7bo5b3o9bo
57bo3b2o2b2o2bo$15bob9o2b2o5bo7bo56b4o2bob2obob3o3b4o$19bo2bo7bo3bobo
4b3o3bo5b2o15bobo31b2o7b3obo4bo$24b6o4b2o10b2o6b2o14b2o17b2o11bo3b2ob
2o4b3obobo$23b2o9b2o10b2o23bo17bo7b2o3b3o2bobo2b3o2bob2o$27bo5b3obo8b
2o10b2o18b2o4b2o5bo5bo7b2o2bo7b2o$26bobo4bo3bo8b3o9bobo10b2o5bobo3bo2b
4obobo3bo5bo4b2o4bobob2o$27bo5bo3bo9bo12bo10b2o7bo4bobo4bob4obobo2b5o
2bo2bo2bobobo$33b3obo13bo8b2o18b2o4bo3b2obo5bob3o6b4obobo2bo$34b2ob2o
48b3obob4o2bo4b6o5bobo$34bo3bo28bo25bobo3b4o7bo5bo$33bob3o28bobob2o10b
o4b2obo2bob5o2bob2o2b2o3b3o$31bo3bo14bo15bobobobo7b3o2bo2b2obobobo3bo
4bobo2bobo2bo$31bo19bo11b2obobobobo2bo3bo5b2o6bo2b3o3bo4b2o2b2o3bo$32b
o16b3o11bo2bo2b2ob4o3bo2b3o6b2obobo3bobob3o4bo3b2o$25b2o28bobo7b2o4bo
6b2obo3b4o3bobobob4o5b2o3bo$26bo29b2o13bobo5bob4o2bobo2bobobob3o2b2obo
2bo3bo$26bobo14b2o11bo15b2o4bo2bo2b2o3bo4bobo3bo2b2o2b2obo3bobo$9bo17b
2o4bobo6bo2bo32bob2obo2bob2ob2obo7b4o2bobo4b2o$7b3o3b2o17bo2bo7b2o16bo
15b2o4b2o2bobo4bobobob2o4b3ob2o$6bo5bo2bo14b6o26bo15bo2bo7b2obobo13bob
o$5bob2obo2b2o15b2o28b3o15bobob7o3bo2b2o6b2o3bobo$2bo2bo5b2o33b2o29b2o
3bo2bobo2bobo16bo$bobobobobo4b3o29bo25b2obo2bob2o2b2obo$2b2obobo4b2o3b
o29b3o23bob2ob2obo3bobo2bo$6b2obo3bo2b2o31bo23bo2bobob2o2bo2b3o7bo4b3o
$2b2o2b2o2bo2bobo2b2o54bobo3bobobob2o8b2o5b2o$bobo2bo3b4ob2o3bo33b2o7b
obo7b2obo5bo3b2o7b2o5b2o$o2bobo3b2o6b2o2bo32bo9b2o10bobobo2bo12bobo3bo
bo$5ob2obo2b4o3b3o34bo7bo6bo4bobob3o14b2o4b4o$5b2o3bo6b2o3b2o12b2o14b
5o12bobo5bobo18bo3bo2b2o$2b2o2b4o8bobo2bo13bo13bo18b2o7bob2o19bob2o2b
3o$2bo5bob8o2b2o15bobo4bo7b3o24b2obo19b3o2b2obo$obo9b4o2bobo17b2o3bobo
9bo50b2o2bo3bo$2o16bobo21bo3bo5b4o18bobo29b4o4b2o$19bo22bo3bo5bo3b2o
17b2o31bobo3bobo4b2o$42bo3bo6b3o2bo16bo33b2o5b2o3b2o$11b2o30bobo9bob2o
49b2o5b2o$10b2obo30bo10bo23b2o27b3o4bo$10b2ob2o39b2o26bo$2o10bobo3b2o
59bobo$2o11b2o2b2obo59bo22bo$12b4ob2o27b2o54bobo3b2o11b2o$12bob4o28bo
25b3o9bo17bobo15bobo$17b2o21bob2o3b3o22b6o7b2o14b2ob3o4b2obo5bo$14b2o
16bo7b2obo5bo25b2obo5b2o13bo2bobo2b4o3bob2ob2o$15b4obo11b2o9bobo31bobo
19b2o3b2o2b2o2bo$14b2ob4o10bobo6b3obobo32bo21b3o2bob2obob3o3b4o$12bob
2o2b2o16bo2bo2bo3bo2bo29b2o9bo10bo2b2o7b3obo4bo$13b2o3bobo15bo2b2o2bob
2obobo37bobo11bo3b2ob2o4b3obobo$18b2ob2o13b3obob3obo2bo39b2o12b2o2bobo
2b3o2bob2o$19bob2o11bo3bobo3bobo58b2o2bo7b2o$20b2o10b2obobo5bo2b2o57bo
3b2o4bobob2o$32bob2ob2obobobo2bo45bobo10b3o2bo2bo2bobobo$13bo16b4o8bob
2o48b2o14b4obobo2bo$12bobo11b2o2bo3bo3b3o3bo49bo13b2o5bobo$12bobo2b4o
5bobobob2ob3o3b2obo62bo2bo5bo$11b2o2b8ob3obo2bobob2ob2o4b2o53bo8b2o3b
3o$12bobo8b2o2b2ob3o6bob2obo55bo12bo$12bob2o6bo2b2obo4bo3b2o2bo2bo53b
3o$13bo3b4o2b2obobob4o4bobo2bo$14b2o7bo2bobob2o2b4o3bob2o$16b5obo3bobo
3bo5b3o2bo59bo$14b2o2bob2ob4o2bo6b2o5bo60b2o$13bo2bobo3b2o3bobo4bo2bo
2b3o60b2o$13b2o2b2ob2o4bo2b4ob2o4bo$20b2o2b2obobob2o$17b2o4b4obo2bo2b
2o73bo$17bob3obo5bobobo2bo70bobo$21bobob4obo4bobo70b2o$24bo3bobob4o2bo
$25bo5b2o3bobo$24b2o9b2ob2o!

Edit: I'll let someone else have at this - the geometry is different between the two designs so it's not trivial to rebuild gun_19 with the vilc design: (123x114 design)

Code: Select all

x = 123, y = 114, rule = B3/S23
36b2o5b2o3b2o33b2ob2o9b2o$34bo2bo5bo4bobo3bo29bobo3b2o5bo$44b3obo2bobo
bo28bo2b4obobo3bo$46bob4ob2o30bobo4bob4obobo$34b2o12bo37bo3b2obo5bob3o
bo$47bobo3b4o30b3obob4o2bo4b2o$46b3ob3o4bo35bobo3b4o$40bo5bobo2b4obobo
23bo4b2obo2bob5o2bob2o2b2o$38b2o5b2o9bobo21b3o2bo2b2obobobo3bo4bobo2bo
$32b3o2b3o6bob2o2bobo3b2o19bo5b2o6bo2b3o3bo4b2o$32b2o2b3o6bobob3o4bo
22bo2b3o6b2obobo3bobob3o$20bo12bo2bo8bo4bo4bo22b2obo3b4o3bobobob4o5b2o
$18b5o7bo2bo4bobo3b2o2bobo2bobobo21bob4o2bobo2bobobob3o2b2obo2bo$12b2o
3bo5bo5bo2bobo3bo5b2o2bob4o2bobo19bo2bo2b2o3bo4bobo3bo2b2o2b2obo$12bob
obob2ob2o7bobo5b3o3b2o2bo5bobobo19bob2obo2bob2ob2obo7b4o2bobo$14bobobo
bo23b2o2bob2o2bo2bo19b2o4b2o2bobo4bobobob2o4b3ob2o$13bobo4bo24bo4bobob
o23bo2bo7b2obobo13bobo$9b2obo2bobo2b2o23bobobo2b2o24bobob7o3bo2b2o6b2o
3bobo$10bob4obo2b2o3b3o5bobo7b2ob2obobo25b2o3bo2bobo2bobo16bo$7b3o5bob
o2b2o5bo3bobo2bo5bo5bo2bo23bo2bob2o2b2obo$6bo2bob2ob2obo2b2o3bobo4bo2b
o7b4obobo24b2ob2obo3bobo2bo$7bobob2obo5bo8bo2bo12bo2b2o26bobob2o2bo2b
3o$6b2obo3bobo2bobo6b3o2b2o13bo25bo2bo3bobobob2o16bo$10bo2b2ob2obo6b3o
2b3o12b2o24bobobo5bo3b2o15b2o$10b2o2bo2bob2o5b2o45bo2bobobo2bo18bo2bo$
7b2obobobo3bobo4bo50bobob3o20b2o$6bo2b4ob5ob3o22b2o4bo25bobo$6b2o5bo5b
o2bo21bobo4b3o25bob2o$8b4obob7o21bo10bo24b2obo$8bo3bobo11b2o2bo8b2obob
2o7b2o30bo$9bo2bo3b2obob3o3b3o8bobobo3bo37bo23b2o$10bobo3b2ob2o2bo4bo
9bo4b3o10b2o26b3o20bo2bo10b2o$9b2obo2bobobobob3o13b3obo5bo6b2o50b2o11b
2o$8bo3b2o3b2ob2obobo15bo6b2o58bo$7bobob2o3bo5bobobo15bobobo$7bo3bo4bo
3b2o2b2o18b2o2bo$8b2obo2bobo3b2o5b3o15bob2o8b2o$10bob3obobo2bo2b2obo
17bobo9bobo6bo36bo$8b2o5bob2obobobob2o16b2o2bo8bo8b3o28bob2obobo3b2o
11b2o$7bo2b4obo3b2obo5b2o17b2o20bo27b2obobobo15bobo$8bobo2bobobo4bobob
3obo2bo34b2o32bob3o4b2obo5bo$9bo6bob2obo8b4o67b2obo2b4o3bob2ob2o$19bob
ob2o2b3o12bo57bo3b2o2b2o2bo$16bobo6bobobobo11bo56b4o2bob2obob3o3b4o$
15bobob7obob2obo8b3o3bo5b2o15bobo31b2o7b3obo4bo$15bobobo6bobo3bo13b2o
6b2o14b2o17b2o11bo3b2ob2o4b3obobo$16bobo3b2o2bo2bobo14b2o23bo17bo7b2o
3b3o2bobo2b3o2bob2o$17bo4b2o3bobob2o13b2o10b2o18b2o4b2o5bo5bo7b2o2bo7b
2o$28b2o16b3o9bobo10b2o5bobo3bo2b4obobo3bo5bo4b2o4bobob2o$30b3obo12bo
12bo10b2o7bo4bobo4bob4obobo2b5o2bo2bo2bobobo$30bo6bo13bo8b2o18b2o4bo3b
2obo5bob3o6b4obobo2bo$28bobo3b4o49b3obob4o2bo4b6o5bobo$28b2o4bo32bo25b
obo3b4o7bo5bo$33bob2obo27bobob2o10bo4b2obo2bob5o2bob2o2b2o3b3o$31bo3bo
b2o11bo15bobobobo7b3o2bo2b2obobobo3bo4bobo2bobo2bo$31bo19bo11b2obobobo
bo2bo3bo5b2o6bo2b3o3bo4b2o2b2o3bo$32bo16b3o11bo2bo2b2ob4o3bo2b3o6b2obo
bo3bobob3o4bo3b2o$25b2o28bobo7b2o4bo6b2obo3b4o3bobobob4o5b2o3bo$26bo
29b2o13bobo5bob4o2bobo2bobobob3o2b2obo2bo3bo$26bobo14b2o11bo15b2o4bo2b
o2b2o3bo4bobo3bo2b2o2b2obo3bobo$9bo17b2o4bobo6bo2bo32bob2obo2bob2ob2ob
o7b4o2bobo4b2o$7b3o3b2o17bo2bo7b2o16bo15b2o4b2o2bobo4bobobob2o4b3ob2o$
6bo5bo2bo14b6o26bo15bo2bo7b2obobo13bobo$5bob2obo2b2o15b2o28b3o15bobob
7o3bo2b2o6b2o3bobo$2bo2bo5b2o33b2o29b2o3bo2bobo2bobo16bo$bobobobobo4b
3o29bo25b2obo2bob2o2b2obo$2b2obobo4b2o3bo29b3o23bob2ob2obo3bobo2bo$6b
2obo3bo2b2o31bo23bo2bobob2o2bo2b3o7bo4b3o$2b2o2b2o2bo2bobo2b2o54bobo3b
obobob2o8b2o5b2o$bobo2bo3b4ob2o3bo33b2o7bobo7b2obo5bo3b2o7b2o5b2o$o2bo
bo3b2o6b2o2bo32bo9b2o10bobobo2bo12bobo3bobo$5ob2obo2b4o3b3o34bo7bo6bo
4bobob3o14b2o4b4o$5b2o3bo6b2o3b2o12b2o14b5o12bobo5bobo18bo3bo2b2o$2b2o
2b4o8bobo2bo13bo13bo18b2o7bob2o19bob2o2b3o$2bo5bob8o2b2o15bobo4bo7b3o
24b2obo19b3o2b2obo$obo9b4o2bobo17b2o3bobo9bo50b2o2bo3bo$2o16bobo21bo3b
o5b4o18bobo29b4o4b2o$19bo22bo3bo5bo3b2o17b2o31bobo3bobo4b2o$42bo3bo6b
3o2bo16bo33b2o5b2o3b2o$11b2o30bobo9bob2o49b2o5b2o$10b2obo30bo10bo23b2o
27b3o4bo$10b2ob2o39b2o26bo$2o10bobo3b2o59bobo$2o11b2o2b2obo59bo22bo$
12b4ob2o27b2o54bobo3b2o11b2o$12bob4o28bo25b3o9bo17bobo15bobo$17b2o21b
2o5b3o22b6o7b2o14b2ob3o4b2obo5bo$14b2o16bo7bo2b2o4bo25b2obo5b2o13bo2bo
bo2b4o3bob2ob2o$15b4obo11b2o7bobo33bobo19b2o3b2o2b2o2bo$14b2ob4o10bobo
6b2o2bo34bo21b3o2bob2obob3o3b4o$12bob2o2b2o16bo2bo2b3o34b2o9bo10bo2b2o
7b3obo4bo$13b2o3bobo15bo2b2obo2b2o41bobo11bo3b2ob2o4b3obobo$18b2ob2o
13b3obob3o2bo41b2o12b2o2bobo2b3o2bob2o$19bob2o11bo3bobo4bobo57b2o2bo7b
2o$20b2o10b2obobo5b2obo58bo3b2o4bobob2o$32bob2ob2obobobo48bobo10b3o2bo
2bo2bobobo$13bo16b4o8bobo49b2o14b4obobo2bo$12bobo11b2o2bo3bo3b3o3b2o
48bo13b2o5bobo$12bobo2b4o5bobobob2ob3o3b2obo62bo2bo5bo$11b2o2b8ob3obo
2bobob2ob2o4bo54bo8b2o3b3o$12bobo8b2o2b2ob3o6bob2ob2o54bo12bo$12bob2o
6bo2b2obo4bo3b2o2bobo2bo51b3o$13bo3b4o2b2obobob4o4bobo3b2obo$14b2o7bo
2bobob2o2b4o3bobo2bo$16b5obo3bobo3bo5b3o3b2o57bo$14b2o2bob2ob4o2bo6b2o
66b2o$13bo2bobo3b2o3b2o4bo3bob2o62b2o$13b2o2b2ob2o3b2o2b6o2bobo$20b2o
2bobobo5b3o2bo$17b2o4b4obo2b2o4bob2o$17bob4o3bobobobobobobo2bo$19bo5bo
2b2o3bo2bobobo$19bob2o2bobo6b2o3bo$20bobo3b2o!

[ElijahKen]

One more row saved by JLS from the last reduced sparkers:

Code: Select all

x = 53, y = 47, rule = B3/S23
30b2o11bob2o2b2obo$30b2o11bobo3bob2o$42bo2b3o$44b2o$42bo2b2o2bo$38b2ob
2obo$38b3o7b2obo$37bo6bo3bo2bo$30bo9b3ob2o2bo3bo$30bo6b2ob3obo4b3o$42b
2ob4o$14bo17b2o5bob2o5bob2o$12b5o6bo5b2ob2o5b2obo4bo2bo$6b2o3bo5bo4bob
2o2bo4bo5bo3bob2obobo$6bobobobob3o9bo12bo3bob2obob2o$8bobobo14bo6bo4b
2obo4bo3bo$7bobob2obo6bob8obo6bob2o5bobo$3b2obo2bobob2o4bo6bo15b2ob4ob
2o$4bob3o2bo2bo12bo9b2ob3obo4bo$b3o5bobo2bo5bo4bo2b2obo8b3ob2obobo$o2b
ob2o2b3ob2o5b2ob2o5bo6bo7bobob2o$bobobo2bo3bobo5b2o16b5o4b2o2bo$2obo5b
o2b2o23bo4bo3bo3bo$2b2o3b2o4bo9bo15b2o3b2ob3o$2bobo3bob2o11bo14b2ob5ob
o$b2obobobo3b2obo25bo5bo$o2bob2ob4o3bo21bo2b2obobob2o$2o5bo8bo21b2obob
2obo2bo$2b4obob7o25b2o5b2o$2bo3bobo29b2o4b4o$3bo2bo2b2obobobo6bo13bo2b
2o2bo2bo$4bob4o2bo2bob2o5b2o12bo2bo$3b2obobo6b2o6b2o14b2o$2bo4bo3b3obo
3b2o$bob3o4bo5bobo$bobobo4b5obob2o2bo$2b2o4bobob2o8bo$5b4obobo3bob2o2b
o$2b2o5bo4bobobobo$3bob2o2bobob2obo4bo$3bo2b4obobo2bo6bo$4bo6b2ob2ob2o
3b2o$5b4obo4bobo2b2obobo$8bob2obobo2bobobob2o$7bo4b2o2bobo2b2o15bo$8b
3o3bobobo4b2obo12bo$10b2ob2ob2o5bob2o10b3o!

JLS shaved off another row (2438):

Code: Select all

x = 53, y = 46, rule = B3/S23
30b2o11bob2o2b2obo$30b2o11bobo3bob2o$42bo2b3o$44b2o$42bo2b2o2bo$38b2ob
2obo$38b3o7b2obo$37bo6bo3bo2bo$40b3ob2o2bo3bo$37b2ob3obo4b3o$33bo8b2ob
4o$14bo15b3ob2o3bob2o5bob2o$12b5o11bobob3o4b2obo4bo2bo$6b2o3bo5bo5bo3b
2o4b2o4bo3bob2obobo$6bobobobob3o4b2o2b3o4b2o5bo3bob2obob2o$8bobobo9b2o
7b2o6b2obo4bo3bo$7bobob2obo7b2o6b2o7bob2o5bobo$3b2obo2bobob2o6b2o7b2o
10b2ob4ob2o$4bob3o2bo2bo5b2o4b3o2b2o4b2ob3obo4bo$b3o5bobo2bo4b2o4b2o3b
o9b3ob2obobo$o2bob2o2b3ob2o4b3obobo11bo7bobob2o$bobobo2bo3bobo3b2ob3o
14b5o4b2o2bo$2obo5bo2b2o6bo16bo4bo3bo3bo$2b2o3b2o4bo25b2o3b2ob3o$2bobo
3bob2o26b2ob5obo$b2obobobo3b2obo25bo5bo$o2bob2ob4o3bo21bo2b2obobob2o$
2o5bo8bo21b2obob2obo2bo$2b4obob7o25b2o5b2o$2bo3bobo29b2o4b4o$3bo2bo2b
2obobobo20bo2b2o2bo2bo$4bob4o2bo2bob2o19bo2bo$3b2obobo6b2o22b2o$2bo4bo
3b3obo3b2o$bob3o4bo5bobo$bobobo4b5obob2o2bo$2b2o4bobob2o8bo$5b4obobo3b
ob2o2bo$2b2o5bo4bobobobo$bo2b3o2bobob2obobo3b4o$2bobo2bobo6b2ob3obo$3b
o3bobob3obo6b3obo$6b2o6b2ob2ob2o2bo2b2o$8bob3o3bob2o2bobo3bobo$8bobo2b
3o5bobo7bo$9bo3bo8bo7b2o!

Edit: Realized that iNoMed had replaced the sparker before me, so I removed that, and previous edit notes.

[iNoMed]

Returning to the gun_19 world, Here's a reduction to 118x117 (13806-cell BB) that takes it below gun_17 (128x108, 13824-cell BB) and therefore removes its status as the largest pseudo-period glider gun design:

Code: Select all

x = 117, y = 118, rule = B3/S23
30b2o5b2o3b2o33b2ob2o9b2o$30b2o5bo4bobo3bo29bobo3b2o5bo$38b3obo2bobobo
28bo2b4obobo3bo$40bo2b3ob2o30bobo4bob4obobo$41bo38bo2bobobo5bob3obo$
43b2ob5o30b2o2bo2bob4o4b2o$41b2o8bo32b2obobob2o2b2o$39b2obo2bo2b3obo
23bo4b2ob4o2bo4b2ob2o2b2o$45b2obobobo21b3o2bo2bo4bobo3b2o3bobo2bo$39bo
3bob2ob2o2b2o19bo5b2o6bo2b4ob2obo2b2o$40b2ob2o4b2o22bo2b3o5bo3bobo3bob
5o$14bo24bobo7bo22b2obo3b4o2b2obobo2bo7b2o$12b5o13b2o7b2obobo2bobobo
21bo2bobo4b4obobob2o2b4o3bo$6b2o3bo5bo11bob2o6bo2bob4o2bobo19bo2bo2b2o
3bo4bob2o2bo6b2obo$6bobobobob3o12bo2bo6bo2bo5bobobo19bob2obo6b3ob2o2b
2o8bobo$8bobobo17b3o6b2obob2o2bo2bo19b2o4b2ob2obobo2bob3ob8o2b2o$7bobo
b2obo7b2o6b2o7bob2obobobo23bob2o3b3ob2obobobo5b4o2bobo$3b2obo2bobob2o
6b3o17bobo2b2o24bo3b3o3bo3bo2b2o11bobo$4bob3o2bo2bo6bo2bo12b3obobobo
25b2obo8b4o16bo$b3o5bobo2bo6b2obo11bo5bo2bo23bo2bobobob2ob2obo$o2bob2o
2b3ob2o7b2o13b4obobo24b2o2bo5bobob2o11bo$bobobo2bo3bobo24bo2b2o26bobo
3bobo3bo12bobo$2obo5bo2b2o27bo25bo2bob3obob3o14bobo$2b2o3b2o4bo26b2o
24bobob2obo2b2o2bo14b2o$2bobo3bob2o55bo2bo3bo2bo2bo3bo18b2o$b2obobobo
3b2obo54bobob3o7bobo9b2ob3ob2o$o2bob2ob4o3bo23b2o4bo25bobo10b2o14bob2o
$2o5bo8bo21bobo4b3o25bob2o21bo3bo$2b4obob7o21bo10bo24b2obo21bo3bo$2bo
3bobo24b2obob2o7b2o48b2obo$3bo2bo2b2obobobo15bobobo3bo10b2o43b2ob3ob2o
$4bob4o2bo2bob2o13bo4b3o10bo4bo40b2o17b2o$3b2obobo6b2o16b3obo4b2o6bo5b
o47b2o9b2o$2bo4bo3b3obo3b2o14bobo6bo6bo5bo45bobo$bob3o4bo5bobo22bo15bo
45bobo$bobobo4b5obob2o2bo14bob2o13b2o48bo$2b2o4bobob2o8bo16bob2o11b2o$
5b4obobo3bob2o2bo8bo7bobo18bo36bo$2b2o5bo4bobobobo8bobo6b2o2bo8bo8b3o
8bo19bob2obobo16b2o$bo2b4obobob2obo3bo2bo6b2o9b2o5bob2o11bo5b2o20b2obo
bobo2b4o9bobo$2bobo2bobo6b7obo2bo21bo12b2o6b2o24bo2b8obo5bo$3bo6b2ob3o
2bo5b4o67b2obo8b4o2b2o$13b2o2b2o2b2o33b3o35bo3b2o6bo3b2o$10b2o9bobobo
20bo9bo37b4o3b4o2bob2ob5o$9bo3b7obob2obo19bo3bo6bo40b2o6b2o3bobo2bo$9b
obobo6bobo3bo22b2o32b2o11bo3b2ob4o3bo2bobo$10bobo3b2o2bo2bobo21b2obo
32bo7b2o3b3o2bobo2bo2b2o2b2o$11bo4b2o3bobob2o20b3o2b2o18b2o4b2o5bo5bo
7b2o2bo3bob2o$22b2o28bobo10b2o5bobo3bo2b4obobo3bo5bo4b2o4bobob2o$24b5o
25bo10b2o7bo4bobo4bob4obobo2b5o4bobobobobo$24bo2b2o2bo22b2o18b2o4bo2bo
bobo5bob3o6b2o5bo2bo$22bobo4b3o12bo36b2o2bo2bob4o4b6o2bob2obo$22b2o21b
2o14bo22b2obobob2o2b2o7bo5bo$27bob2obo11b2o14bobob2o10bo4b2ob4o2bo4b2o
b2o2b2o3b3o$25b5ob2o5b3o19bobobobo7b3o2bo2bo4bobo3b2o3bobo2bobo2bo$25b
3o10bobo16b2obobobobo2bo3bo5b2o6bo2b4ob2obo2b2o2b2o3bo$50bo6bo2bo2b2ob
4o3bo2b3o5bo3bobo3bob5o4bo3b2o$19b2o16bo2b2o6bobo8b2o4bo6b2obo3b4o2b2o
bobo2bo7b2o3bo$20bo28b2o14bobo5bo2bobo4b4obobob2o2b4o3bo3bo$20bobo15b
2o26b2o4bo2bo2b2o3bo4bob2o2bo6b2obo3bobo$21b2o14bo34bob2obo6b3ob2o2b2o
8bobo4b2o$71b2o4b2ob2obobo2bob3ob8o2b2o$24b2o46bob2o3b3ob2obobobo5b4o
2bobo$24b2o26bo19bo3b3o3bo3bo2b2o11bobo$40b2o11b2o16b2obo8b4o16bo$3bob
o3bobo21bo6bo11b2o5bo6b2obo2bobobob2ob2obo$3b2ob2o3bo20b2o7b3obo14bo6b
ob2o2bo5bobob2o$6bobo3bo19bobo8b2obo11b3o6bo2bobo3bobo3bo$3b2obo4b5o
30bo21bobob3obob3o$4bo4bobob3o30bob2o17b2ob2obo2b2o2bo17bo$3bo2b4obo6b
2o27bo3bo11bo6bo3bo2bo2bo16bobo$4b2o5bo2b2o3bo2b2o28bo11b2o4bobob3o23b
o$6b4o3b3o3bobo2bo24b2o3bo8b2o6bobo25b2o$6bo2bobo4bob2ob2o2bo25b2o20bo
b2o22bo2bo$3b2obo2bobo3b2o6b2o26b2ob2o17b2obo3bo17bo2bo$3b2ob3o3b2o4b
5o2b3o23b2o26bo20b2o$10bobo3b2o4b3o3bo23bo3bo22b3o18bo$8b2o3bo2bobo2bo
4b2o26bobo10bo33bobo11b2o$8bo4bobob6obobo29bo11bo33bo12b2o$6bobo15bobo
39b3o$6b2o16bobob2o16b3o23bobo$25b2ob2o16bo26b2o$47bo3b2o20bo$18bo33bo
44bo$16b2obo30b3o25bo17bobo16b2o$16bo2bo46b2o11bo16bobo2b4o9bobo$6b2o
11bo5bo29b2o9b2o3bo5b3o15b2o2b8obo5bo$6b2o9bo3b2ob2o29bobo12bobo20bo2b
obo8b4o2b2o$18b2o4bobo30bo13bobo19b2o3b2o6bo3b2o$20bo36b2o14bo8bo12b3o
3b4o2bob2ob5o$19bob3o22b2o25b2o8b2o10bo2b2o6b2o3bobo2bo$21b3obo20bo2b
2o31b2o12bo3b2ob4o3bo2bobo$24bo12b3o7bobo47b2o2bobo2bo2b2o2b2o$18bobo
4b2o12bo6b2o2bo48b2o2bo3bob2o$19b2ob2o3bo10bo6bo3b2o37bo10bo3b2o4bobob
2o$19bo5bo15b3o2bobo2b2o33bobo11b3o4bobobobobo$25bo2bo17bob3o2bo33b2o
15b2o5bo2bo$25bob2o10bo4b3o4bobo48b2o2bob2obo$26bo12bobobo2bo3bobo48bo
2bo5bo$37bo2b2ob2ob3obo40bobo8b2o3b3o$19bo17bo8bobobo41b2o13bo$18bobo
12bo2bobob2ob4o3b2o40bo$18bobo10b2obo2b3o7bo2bo$17b2obob6o6bobo4bo2b2o
b2obo46bo$18bo4bo2bob2obo2bo4bob2o2bob2ob2o46bo$18bob3o4b2o2bo2bob2obo
b3o8bo43b3o$19bo2b5o3bobobo4bobo3bobobobobo$20b2o4bo3bobobobo3b4o3bobo
2bo$22b2ob2obo3bobob2o6b3o3b2o49bo$20b2o2bo2bob4o2bob2o3b2o58b2o$19bo
2bobo4bo3b2o2bobo3bob2o54b2o$19b2o2b2obo4b2o2b4o4bobo$26b2o4bobo5b2obo
bo$23b2o5b2o2bo2b2obo4b2o60bo$23bob5o2bobobobob3obo2bo57bobo$25bo3b3o
2b2o3bo2bobobo59b2o$25bob2o2bobo6b2o3bo$26bobo3b2o!

[vilc]

Returning to the gun_19 world, Here's a reduction to 118x117 (13806-cell BB) that takes it below gun_17 (128x108, 13824-cell BB) and therefore removes its status as the largest pseudo-period glider gun design:

A tiny reduction :

Code: Select all

x = 117, y = 117, rule = B3/S23
30b2o5b2o3b2o33b2ob2o9b2o$30b2o5bo4bobo3bo29bobo3b2o5bo$38b3obo2bobobo
28bo2b4obobo3bo$40bo2b3ob2o30bobo4bob4obobo$41bo38bo2bobobo5bob3obo$
43b2ob5o30b2o2bo2bob4o4b2o$41b2o8bo32b2obobob2o2b2o$39b2obo2bo2b3obo
23bo4b2ob4o2bo4b2ob2o2b2o$45b2obobobo21b3o2bo2bo4bobo3b2o3bobo2bo$39bo
3bob2ob2o2b2o19bo5b2o6bo2b4ob2obo2b2o$40b2ob2o4b2o22bo2b3o5bo3bobo3bob
5o$14bo24bobo7bo22b2obo3b4o2b2obobo2bo7b2o$12b5o13b2o7b2obobo2bobobo
21bo2bobo4b4obobob2o2b4o3bo$6b2o3bo5bo11bob2o6bo2bob4o2bobo19bo2bo2b2o
3bo4bob2o2bo6b2obo$6bobobobob3o12bo2bo6bo2bo5bobobo19bob2obo6b3ob2o2b
2o8bobo$8bobobo17b3o6b2obob2o2bo2bo19b2o4b2ob2obobo2bob3ob8o2b2o$7bobo
b2obo7b2o6b2o7bob2obobobo23bob2o3b3ob2obobobo5b4o2bobo$3b2obo2bobob2o
6b3o17bobo2b2o24bo3b3o3bo3bo2b2o11bobo$4bob3o2bo2bo6bo2bo12b3obobobo
25b2obo8b4o16bo$b3o5bobo2bo6b2obo11bo5bo2bo23bo2bobobob2ob2obo$o2bob2o
2b3ob2o7b2o13b4obobo24b2o2bo5bobob2o11bo$bobobo2bo3bobo24bo2b2o26bobo
3bobo3bo12bobo$2obo5bo2b2o27bo25bo2bob3obob3o14bobo$2b2o3b2o4bo26b2o
24bobob2obo2b2o2bo14b2o$2bobo3bob2o55bo2bo3bo2bo2bo3bo18b2o$b2obobobo
3b2obo54bobob3o7bobo9b2ob3ob2o$o2bob2ob4o3bo23b2o4bo25bobo10b2o14bob2o
$2o5bo8bo21bobo4b3o25bob2o21bo3bo$2b4obob7o21bo10bo24b2obo21bo3bo$2bo
3bobo24b2obob2o7b2o48b2obo$3bo2bo2b2obobobo15bobobo3bo10b2o43b2ob3ob2o
$4bob4o2bo2bob2o13bo4b3o10bo4bo40b2o17b2o$3b2obobo6b2o16b3obo4b2o6bo5b
o47b2o9b2o$2bo4bo3b3obo3b2o14bobo6bo6bo5bo45bobo$bob3o4bo5bobo22bo15bo
45bobo$bobobo4b5obob2o2bo14bob2o13b2o48bo$2b2o4bobob2o8bo16bob2o11b2o$
5b4obobo3bob2o2bo8bo7bobo18bo36bo$2b2o5bo4bobobobo8bobo6b2o2bo8bo8b3o
8bo19bob2obobo16b2o$bo2b4obobob2obo3bo2bo6b2o9b2o5bob2o11bo5b2o20b2obo
bobo2b4o9bobo$2bobo2bobo6b7obo2bo21bo12b2o6b2o24bo2b8obo5bo$3bo6b2ob3o
2bo5b4o67b2obo8b4o2b2o$13b2o2b2o2b2o33b3o35bo3b2o6bo3b2o$10b2o9bobobo
20bo9bo37b4o3b4o2bob2ob5o$9bo3b7obob2obo19bo3bo6bo40b2o6b2o3bobo2bo$9b
obobo6bobo3bo22b2o32b2o11bo3b2ob4o3bo2bobo$10bobo3b2o2bo2bobo21b2obo
32bo7b2o3b3o2bobo2bo2b2o2b2o$11bo4b2o3bobob2o20b3o2b2o18b2o4b2o5bo5bo
7b2o2bo3bob2o$22b2o28bobo10b2o5bobo3bo2b4obobo3bo5bo4b2o4bobob2o$24b5o
25bo10b2o7bo4bobo4bob4obobo2b5o4bobobobobo$24bo2b2o2bo22b2o18b2o4bo2bo
bobo5bob3o6b2o5bo2bo$22bobo4b3o12bo36b2o2bo2bob4o4b6o2bob2obo$22b2o21b
2o14bo22b2obobob2o2b2o7bo5bo$27bob2obo11b2o14bobob2o10bo4b2ob4o2bo4b2o
b2o2b2o3b3o$25b5ob2o5b3o19bobobobo7b3o2bo2bo4bobo3b2o3bobo2bobo2bo$25b
3o10bobo16b2obobobobo2bo3bo5b2o6bo2b4ob2obo2b2o2b2o3bo$50bo6bo2bo2b2ob
4o3bo2b3o5bo3bobo3bob5o4bo3b2o$19b2o16bo2b2o6bobo8b2o4bo6b2obo3b4o2b2o
bobo2bo7b2o3bo$20bo28b2o14bobo5bo2bobo4b4obobob2o2b4o3bo3bo$20bobo15b
2o26b2o4bo2bo2b2o3bo4bob2o2bo6b2obo3bobo$21b2o14bo34bob2obo6b3ob2o2b2o
8bobo4b2o$71b2o4b2ob2obobo2bob3ob8o2b2o$24b2o46bob2o3b3ob2obobobo5b4o
2bobo$24b2o18b2o6bo19bo3b3o3bo3bo2b2o11bobo$2bob2o2b2o30b2o2b2o7b2o16b
2obo8b4o16bo$2b2o4b3o22bo6bo11b2o5bo6b2obo2bobobob2ob2obo$5bob2o2bo20b
2o7b5o14bo6bob2o2bo5bobob2o$2b2ob2o2b2o2b2o17bobo10bo12b3o6bo2bobo3bob
o3bo$3bobo2bobo2bo27b2o2bobo20bobob3obob3o$2bo2b4obobo4b2o22b2o3b3o18b
2ob2obo2b2o2bo17bo$3b2o4b2o7bo2b2o25b4o11bo6bo3bo2bo2bo16bobo$5b4obo2b
3o2bobo2bo25bob3o10b2o4bobob3o23bo$5bo2bob3o4b2ob2o2bo26bobo9b2o6bobo
25b2o$2b2obo4bob3o7b2o29b2o18bob2o22bo2bo$2b2ob4o3b3obob2obo2b3o23b2ob
o19b2obo3bo17bo2bo$15bo2b2o2b2o3bo23bob2o24bo20b2o$7b2ob2obo3b4o2bob2o
24bob3o23b3o18bo$7bo5bob2o4b3obo29bo11bo33bobo11b2o$5bobo15bobo42bo33b
o12b2o$5b2o11b2o3bobob2o37b3o$24b2ob2o17b3o23bobo$46bo2b2o22b2o$18bobo
52bo$19b2o27bobo46bo$15b3o2b2o27bo28bo17bobo16b2o$5b2o6bo4b3o3bo29b2o
10b2o11bo16bobo2b4o9bobo$5b2o10b4o2bobo28bobo9b2o3bo5b3o15b2o2b8obo5bo
$13b2o4b2o4bo30bo13bobo20bo2bobo8b4o2b2o$17bob2o35b2o13bobo19b2o3b2o6b
o3b2o$20bo2b2o20b2o26bo8bo12b3o3b4o2bob2ob5o$18b2o2bo22bo2b2o23b2o8b2o
10bo2b2o6b2o3bobo2bo$22b2obo20bobo33b2o12bo3b2ob4o3bo2bobo$17bo4b2o4b
2o5b3o7b2o2bo47b2o2bobo2bo2b2o2b2o$17bobo2b4o11bo6bo2bobo49b2o2bo3bob
2o$18bo3b3o4bo6bo3b2o3bo4b2o36bo10bo3b2o4bobob2o$21b2o2b3o12b2obobob3o
2bo33bobo11b3o4bobobobobo$22b2o14b3o2bo2b2o2bobo34b2o15b2o5bo2bo$22bob
o12bo2bobo3bob2obo50b2o2bob2obo$40bob2o2b2obo51bo2bo5bo$18bo16bobo2bob
o2bo3bo41bobo8b2o3b3o$17bobo3b2o6b2o2bo3b7obob2o41b2o13bo$17bobo13bobo
b2o7bo2bo42bo$16b2ob3o4b2obobobo4bobo2b2o4bo$17bobo2b4o7bob2ob2obo2bob
2ob2o46bo$17bob2o2b2o2bo3bobo4bo3b2o2bobo2bo46bo$18bo2bob2o2b3obobobo
2bobo2b4ob3obo43b3o$19b2o5b4obobobo3b4o3bobo2bo$21b3obobo3bobob2o6b3o
3b2o$19b2o4bo3b3o2bo6b2o58bo$18bo2bobo4bo3b2o2bob2o2bob2o56b2o$18b2o2b
2obo2b4o2b4o4bobo56b2o$25b4o4bo5b4obo$22b2o4b2obobo2b2obo2bob2o$22bob
5o2bobobobo2b2obo2bo60bo$24bo5bo2b2o3bo2bobobo59bobo$24bob2o2bobo6b2o
3bo61b2o$25bobo3b2o!

[Timelord Missionary]

A tiny reduction :

Code: Select all

x = 117, y = 117, rule = B3/S23
30b2o5b2o3b2o33b2ob2o9b2o$30b2o5bo4bobo3bo29bobo3b2o5bo$38b3obo2bobobo
28bo2b4obobo3bo$40bo2b3ob2o30bobo4bob4obobo$41bo38bo2bobobo5bob3obo$
43b2ob5o30b2o2bo2bob4o4b2o$41b2o8bo32b2obobob2o2b2o$39b2obo2bo2b3obo
23bo4b2ob4o2bo4b2ob2o2b2o$45b2obobobo21b3o2bo2bo4bobo3b2o3bobo2bo$39bo
3bob2ob2o2b2o19bo5b2o6bo2b4ob2obo2b2o$40b2ob2o4b2o22bo2b3o5bo3bobo3bob
5o$14bo24bobo7bo22b2obo3b4o2b2obobo2bo7b2o$12b5o13b2o7b2obobo2bobobo
21bo2bobo4b4obobob2o2b4o3bo$6b2o3bo5bo11bob2o6bo2bob4o2bobo19bo2bo2b2o
3bo4bob2o2bo6b2obo$6bobobobob3o12bo2bo6bo2bo5bobobo19bob2obo6b3ob2o2b
2o8bobo$8bobobo17b3o6b2obob2o2bo2bo19b2o4b2ob2obobo2bob3ob8o2b2o$7bobo
b2obo7b2o6b2o7bob2obobobo23bob2o3b3ob2obobobo5b4o2bobo$3b2obo2bobob2o
6b3o17bobo2b2o24bo3b3o3bo3bo2b2o11bobo$4bob3o2bo2bo6bo2bo12b3obobobo
25b2obo8b4o16bo$b3o5bobo2bo6b2obo11bo5bo2bo23bo2bobobob2ob2obo$o2bob2o
2b3ob2o7b2o13b4obobo24b2o2bo5bobob2o11bo$bobobo2bo3bobo24bo2b2o26bobo
3bobo3bo12bobo$2obo5bo2b2o27bo25bo2bob3obob3o14bobo$2b2o3b2o4bo26b2o
24bobob2obo2b2o2bo14b2o$2bobo3bob2o55bo2bo3bo2bo2bo3bo18b2o$b2obobobo
3b2obo54bobob3o7bobo9b2ob3ob2o$o2bob2ob4o3bo23b2o4bo25bobo10b2o14bob2o
$2o5bo8bo21bobo4b3o25bob2o21bo3bo$2b4obob7o21bo10bo24b2obo21bo3bo$2bo
3bobo24b2obob2o7b2o48b2obo$3bo2bo2b2obobobo15bobobo3bo10b2o43b2ob3ob2o
$4bob4o2bo2bob2o13bo4b3o10bo4bo40b2o17b2o$3b2obobo6b2o16b3obo4b2o6bo5b
o47b2o9b2o$2bo4bo3b3obo3b2o14bobo6bo6bo5bo45bobo$bob3o4bo5bobo22bo15bo
45bobo$bobobo4b5obob2o2bo14bob2o13b2o48bo$2b2o4bobob2o8bo16bob2o11b2o$
5b4obobo3bob2o2bo8bo7bobo18bo36bo$2b2o5bo4bobobobo8bobo6b2o2bo8bo8b3o
8bo19bob2obobo16b2o$bo2b4obobob2obo3bo2bo6b2o9b2o5bob2o11bo5b2o20b2obo
bobo2b4o9bobo$2bobo2bobo6b7obo2bo21bo12b2o6b2o24bo2b8obo5bo$3bo6b2ob3o
2bo5b4o67b2obo8b4o2b2o$13b2o2b2o2b2o33b3o35bo3b2o6bo3b2o$10b2o9bobobo
20bo9bo37b4o3b4o2bob2ob5o$9bo3b7obob2obo19bo3bo6bo40b2o6b2o3bobo2bo$9b
obobo6bobo3bo22b2o32b2o11bo3b2ob4o3bo2bobo$10bobo3b2o2bo2bobo21b2obo
32bo7b2o3b3o2bobo2bo2b2o2b2o$11bo4b2o3bobob2o20b3o2b2o18b2o4b2o5bo5bo
7b2o2bo3bob2o$22b2o28bobo10b2o5bobo3bo2b4obobo3bo5bo4b2o4bobob2o$24b5o
25bo10b2o7bo4bobo4bob4obobo2b5o4bobobobobo$24bo2b2o2bo22b2o18b2o4bo2bo
bobo5bob3o6b2o5bo2bo$22bobo4b3o12bo36b2o2bo2bob4o4b6o2bob2obo$22b2o21b
2o14bo22b2obobob2o2b2o7bo5bo$27bob2obo11b2o14bobob2o10bo4b2ob4o2bo4b2o
b2o2b2o3b3o$25b5ob2o5b3o19bobobobo7b3o2bo2bo4bobo3b2o3bobo2bobo2bo$25b
3o10bobo16b2obobobobo2bo3bo5b2o6bo2b4ob2obo2b2o2b2o3bo$50bo6bo2bo2b2ob
4o3bo2b3o5bo3bobo3bob5o4bo3b2o$19b2o16bo2b2o6bobo8b2o4bo6b2obo3b4o2b2o
bobo2bo7b2o3bo$20bo28b2o14bobo5bo2bobo4b4obobob2o2b4o3bo3bo$20bobo15b
2o26b2o4bo2bo2b2o3bo4bob2o2bo6b2obo3bobo$21b2o14bo34bob2obo6b3ob2o2b2o
8bobo4b2o$71b2o4b2ob2obobo2bob3ob8o2b2o$24b2o46bob2o3b3ob2obobobo5b4o
2bobo$24b2o18b2o6bo19bo3b3o3bo3bo2b2o11bobo$2bob2o2b2o30b2o2b2o7b2o16b
2obo8b4o16bo$2b2o4b3o22bo6bo11b2o5bo6b2obo2bobobob2ob2obo$5bob2o2bo20b
2o7b5o14bo6bob2o2bo5bobob2o$2b2ob2o2b2o2b2o17bobo10bo12b3o6bo2bobo3bob
o3bo$3bobo2bobo2bo27b2o2bobo20bobob3obob3o$2bo2b4obobo4b2o22b2o3b3o18b
2ob2obo2b2o2bo17bo$3b2o4b2o7bo2b2o25b4o11bo6bo3bo2bo2bo16bobo$5b4obo2b
3o2bobo2bo25bob3o10b2o4bobob3o23bo$5bo2bob3o4b2ob2o2bo26bobo9b2o6bobo
25b2o$2b2obo4bob3o7b2o29b2o18bob2o22bo2bo$2b2ob4o3b3obob2obo2b3o23b2ob
o19b2obo3bo17bo2bo$15bo2b2o2b2o3bo23bob2o24bo20b2o$7b2ob2obo3b4o2bob2o
24bob3o23b3o18bo$7bo5bob2o4b3obo29bo11bo33bobo11b2o$5bobo15bobo42bo33b
o12b2o$5b2o11b2o3bobob2o37b3o$24b2ob2o17b3o23bobo$46bo2b2o22b2o$18bobo
52bo$19b2o27bobo46bo$15b3o2b2o27bo28bo17bobo16b2o$5b2o6bo4b3o3bo29b2o
10b2o11bo16bobo2b4o9bobo$5b2o10b4o2bobo28bobo9b2o3bo5b3o15b2o2b8obo5bo
$13b2o4b2o4bo30bo13bobo20bo2bobo8b4o2b2o$17bob2o35b2o13bobo19b2o3b2o6b
o3b2o$20bo2b2o20b2o26bo8bo12b3o3b4o2bob2ob5o$18b2o2bo22bo2b2o23b2o8b2o
10bo2b2o6b2o3bobo2bo$22b2obo20bobo33b2o12bo3b2ob4o3bo2bobo$17bo4b2o4b
2o5b3o7b2o2bo47b2o2bobo2bo2b2o2b2o$17bobo2b4o11bo6bo2bobo49b2o2bo3bob
2o$18bo3b3o4bo6bo3b2o3bo4b2o36bo10bo3b2o4bobob2o$21b2o2b3o12b2obobob3o
2bo33bobo11b3o4bobobobobo$22b2o14b3o2bo2b2o2bobo34b2o15b2o5bo2bo$22bob
o12bo2bobo3bob2obo50b2o2bob2obo$40bob2o2b2obo51bo2bo5bo$18bo16bobo2bob
o2bo3bo41bobo8b2o3b3o$17bobo3b2o6b2o2bo3b7obob2o41b2o13bo$17bobo13bobo
b2o7bo2bo42bo$16b2ob3o4b2obobobo4bobo2b2o4bo$17bobo2b4o7bob2ob2obo2bob
2ob2o46bo$17bob2o2b2o2bo3bobo4bo3b2o2bobo2bo46bo$18bo2bob2o2b3obobobo
2bobo2b4ob3obo43b3o$19b2o5b4obobobo3b4o3bobo2bo$21b3obobo3bobob2o6b3o
3b2o$19b2o4bo3b3o2bo6b2o58bo$18bo2bobo4bo3b2o2bob2o2bob2o56b2o$18b2o2b
2obo2b4o2b4o4bobo56b2o$25b4o4bo5b4obo$22b2o4b2obobo2b2obo2bob2o$22bob
5o2bobobobo2b2obo2bo60bo$24bo5bo2b2o3bo2bobobo59bobo$24bob2o2bobo6b2o
3bo61b2o$25bobo3b2o!

A stator reduction (-9 cells)

Code: Select all

x = 120, y = 118, rule = B3/S23
32b2o5b2o3b2o33b2ob2o9b2o$32b2o5bo4bobo3bo29bobo3b2o5bo$40b3obo2bobob
o28bo2b4obobo3bo$42bo2b3ob2o30bobo4bob4obobo$43bo38bo2bobobo5bob3obo$
45b2ob5o30b2o2bo2bob4o4b2o$43b2o8bo32b2obobob2o2b2o$41b2obo2bo2b3obo23b
o4b2ob4o2bo4b2ob2o2b2o$47b2obobobo21b3o2bo2bo4bobo3b2o3bobo2bo$41bo3b
ob2ob2o2b2o19bo5b2o6bo2b4ob2obo2b2o$42b2ob2o4b2o22bo2b3o5bo3bobo3bob5o
$16bo24bobo7bo22b2obo3b4o2b2obobo2bo7b2o$14b5o13b2o7b2obobo2bobobo21b
o2bobo4b4obobob2o2b4o3bo$8b2o3bo5bo11bob2o6bo2bob4o2bobo19bo2bo2b2o3b
o4bob2o2bo6b2obo$8bobobobob3o12bo2bo6bo2bo5bobobo19bob2obo6b3ob2o2b2o
8bobo$10bobobo17b3o6b2obob2o2bo2bo19b2o4b2ob2obobo2bob3ob8o2b2o$9bobo
b2obo7b2o6b2o7bob2obobobo23bob2o3b3ob2obobobo5b4o2bobo$5b2obo2bobob2o
6b3o17bobo2b2o24bo3b3o3bo3bo2b2o11bobo$6bob3o2bo2bo6bo2bo12b3obobobo25b
2obo8b4o16bo$3b3o5bobo2bo6b2obo11bo5bo2bo23bo2bobobob2ob2obo$2bo2bob2o
2b3ob2o7b2o13b4obobo24b2o2bo5bobob2o11bo$3bobobo2bo3bobo24bo2b2o26bob
o3bobo3bo12bobo$2b2obo5bo2b2o27bo25bo2bob3obob3o14bobo$4b2o3b2o4bo26b
2o24bobob2obo2b2o2bo14b2o$4bobo3bob2o55bo2bo3bo2bo2bo3bo18b2o$3b2obob
obo3b2obo54bobob3o7bobo9b2ob3ob2o$2bo2bob2ob4o3bo23b2o4bo25bobo10b2o14b
ob2o$2b2o5bo8bo21bobo4b3o25bob2o21bo3bo$4b4obob7o21bo10bo24b2obo21bo3b
o$4bo3bobo24b2obob2o7b2o48b2obo$5bo2bo2b2obobobo15bobobo3bo10b2o43b2o
b3ob2o$6bob4o2bo2bob2o13bo4b3o10bo4bo40b2o17b2o$5b2obobo6b2o16b3obo4b
2o6bo5bo47b2o9b2o$4bo4bo3b3obo3b2o14bobo6bo6bo5bo45bobo$3bob3o4bo5bob
o22bo15bo45bobo$3bobobo4b5obob2o2bo14bob2o13b2o48bo$4b2o4bobob2o8bo16b
ob2o11b2o$7b4obobo3bob2o2bo8bo7bobo18bo36bo$4b2o5bo4bobobobo8bobo6b2o
2bo8bo8b3o8bo24bobo16b2o$3bo2b4obobob2obo3bo2bo6b2o9b2o5bob2o11bo5b2o
25bobo2b4o9bobo$4bobo2bobo6b7obo2bo21bo12b2o6b2o23b2o2b8obo5bo$5bo6b2o
b3o2bo5b4o68bobo8b4o2b2o$15b2o2b2o2b2o33b3o36bo2b2o6bo3b2o$12b2o9bobo
bo20bo9bo38b3o3b4o2bob2ob5o$11bo3b7obob2obo19bo3bo6bo40b2o6b2o3bobo2b
o$11bobobo6bobo3bo22b2o32b2o12bo2b2ob4o3bo2bobo$12bobo3b2o2bo2bobo21b
2obo32bo7b2o5bo2bobo2bo2b2o2b2o$13bo4b2o3bobob2o20b3o2b2o18b2o4b2o5bo
5bo7b2o2bo3bob2o$24b2o28bobo10b2o5bobo3bo2b4obobo3bo3b3o4b2o4bobob2o$
26b5o25bo10b2o7bo4bobo4bob4obobo3b4o4bobobobobo$26bo2b2o2bo22b2o18b2o
4bo2bobobo5bob3o6b2o5bo2bo$24bobo4b3o12bo36b2o2bo2bob4o4b6o2bob2obo$24b
2o21b2o14bo22b2obobob2o2b2o7bo5bo$29bob2obo11b2o14bobob2o10bo4b2ob4o2b
o4b2ob2o2b2o3b3o$27b5ob2o5b3o19bobobobo7b3o2bo2bo4bobo3b2o3bobo2bobo2b
o$27b3o10bobo16b2obobobobo2bo3bo5b2o6bo2b4ob2obo2b2o2b2o3bo$52bo6bo2b
o2b2ob4o3bo2b3o5bo3bobo3bob5o4bo3b2o$21b2o16bo2b2o6bobo8b2o4bo6b2obo3b
4o2b2obobo2bo7b2o3bo$22bo28b2o14bobo5bo2bobo4b4obobob2o2b4o3bo3bo$22b
obo15b2o26b2o4bo2bo2b2o3bo4bob2o2bo6b2obo3bo$23b2o14bo34bob2obo6b3ob2o
2b2o8bobo2b2o$73b2o4b2ob2obobo2bob3ob8o2b2o$26b2o46bob2o3b3ob2obobobo
5b4o2bobo$26b2o18b2o6bo19bo3b3o3bo3bo2b2o11bobo$4bob2o2b2o30b2o2b2o7b
2o16b2obo8b4o16bo$4b2o4b3o22bo6bo11b2o5bo6b2obo2bobobob2ob2obo$7bob2o
2bo20b2o7b5o14bo6bob2o2bo5bobob2o$4b2ob2o2b2o2b2o17bobo10bo12b3o6bo2b
obo3bobo3bo$5bobo2bobo2bo27b2o2bobo20bobob3obob3o$4bo2b4obobo4b2o22b2o
3b3o18b2ob2obo2b2o2bo17bo$5b2o4b2o7bo2b2o25b4o11bo6bo3bo2bo2bo16bobo$
7b4obo2b3o2bobo2bo25bob3o10b2o4bobob3o23bo$7bo2bob3o4b2ob2o2bo26bobo9b
2o6bobo25b2o$4b2obo4bob3o7b2o29b2o18bob2o22bo2bo$4b2ob4o3b3obob2obo2b
3o23b2obo19b2obo3bo17bo2bo$17bo2b2o2b2o3bo23bob2o24bo20b2o$9b2ob2obo3b
4o2bob2o24bob3o23b3o18bo$9bo5bob2o4b3obo29bo11bo33bobo11b2o$7bobo15bo
bo42bo33bo12b2o$7b2o11b2o3bobob2o37b3o$26b2ob2o17b3o23bobo$48bo2b2o22b
2o$20bobo52bo$21b2o27bobo46bo$17b3o2b2o27bo28bo17bobo16b2o$7b2o6bo4b3o
3bo29b2o10b2o11bo16bobo2b4o9bobo$7b2o10b4o2bobo28bobo9b2o3bo5b3o15b2o
2b8obo5bo$15b2o4b2o4bo30bo13bobo20bo2bobo8b4o2b2o$19bob2o35b2o13bobo19b
2o3b2o6bo3b2o$22bo2b2o20b2o26bo8bo12b3o3b4o2bob2ob5o$20b2o2bo22bo2b2o
23b2o8b2o10bo2b2o6b2o3bobo2bo$24b2obo20bobo33b2o12bo3b2ob4o3bo2bobo$19b
o4b2o4b2o5b3o7b2o2bo47b2o2bobo2bo2b2o2b2o$19bobo2b4o11bo6bo2bobo49b2o
2bo3bob2o$20bo3b3o4bo6bo3b2o3bo4b2o36bo10bo3b2o4bobob2o$23b2o2b3o12b2o
bobob3o2bo33bobo11b3o4bobobobobo$24b2o14b3o2bo2b2o2bobo34b2o15b2o5bo2b
o$24bobo12bo2bobo3bob2obo50b2o2bob2obo$42bob2o2b2obo51bo2bo5bo$20bo16b
obo2bobo2bo3bo41bobo8b2o3b3o$19bobo3b2o6b2o2bo3b7obob2o41b2o13bo$19bo
bo13bobob2o7bo2bo42bo$18b2ob3o4b2obobobo4bobo2b2o4bo$19bobo2b4o7bob2o
b2obo2bob2ob2o46bo$19bob2o2b2o2bo3bobo4bo3b2o2bobo2bo46bo$20bo2bob2o2b
3obobobo2bobo2b4ob3obo43b3o$21b2o5b4obobobo3b4o3bobo2bo$23b3obobo3bob
ob2o6b3o3b2o$21b2o4bo3b3o2bo6b2o58bo$20bo2bobo4bo3b2o2bob2o2bob2o56b2o
$20b2o2b2obo2b4o2b4o4bobo56b2o$27b4o4bo5b4obo$24b2o4b2obobo2b2obo2bob
2o$24bob5o2bobobobo2b2obo2bo60bo$26bo5bo2b2o3bo2bobobo59bobo$26bob2o2b
obo6b2o3bo61b2o$27bobo3b2o!
 

[Period1GliderGun]

Smaller gun_171 (3782 -> 2703)

Code: Select all

x = 53, y = 51, rule = B3/S23
ob2ob2o14b2o$2ob4ob3o10b2o$5bo$8b2o$3b5o3bo$2bob2o2b2o$6b2o3b5o$obo2b
3o$o3b4o3b2o2bo$b3o5bobo3bo$4b4o6bo$b2o5b2o2bo25bo$2bobobob3obo23b5o$
2bobo2bo3b2o2bo19bo5bo3b2o$b2obo2bo3b2o2bo5b3obo10b5obobobo$bo2bobob3o
bo9bob4o10bobobobo$2bo5b2o2bo10b2o2b2o9bo2bobobo$b2ob4o6bo9b4obo9bo3b
o2bob2o$3bobo3bobo3bo10bob3o5bo2b3obob2obo$3bo2b2o3b2o2bo20bo2b3o7b3o
$2b2obobo31bo3b2ob2obo2bo$bo2b2o5b5o22bo3bo4bobobo$2bo3bo2b2o27bob4o3b
obob2o$3b3obo4b3o26b2o2b5o$5bo2bob2o26bo2b2obobobo$5bobobobo3bo28bobo
3b2o$4b2o3b2o4bo20bobob5obob2o2bo$3bo2b2obobob2o21bo8bo5b2o$3b2o6b2o24b
7obob4o$5b4o4b2o29bobo3bo$5bo2bo2b2o2bo19b3obob3o2bo2bo$11bo2bo24bo3b
ob2obo$12b2o19bobobo8bob2o$32bo4b5o3bo4bo$10b4o18bo3bo2bo2bo2bob2o2bo
$10bo3bo9bo5b7obo2b2o4bobobo$13b2o7b2o6b2o4bo2bo2bobo2bob2o$23b2o8b4o
3bobob5o$4b2o25b2obobobob2obo5b2o$3bobo23bo6bob2obobob4o2bo$3bo21b2ob
ob2o3b2o4bobobo2bobo$2obo7bo13bob2o3b3o2bob4o6bo$bobob2o2b3o17bob2obo
bo2bo$bobob2o2b2o15b2o3bobo6b3o$2obo7bo14bob2obob7obobo$o2b4o3bo10b2o
7bobo3bo2bobobo$b2o3bo3bo10bobo6bo2bo6bobo$3b2o18bo7b2o8bo$3bo13bo5b2o
$5bo12bo$4b2o10b3o!

EDIT: gun_285 (4312 -> 3540)

Code: Select all

x = 59, y = 60, rule = B3/S23
6bob2ob2o14b2o$6b2ob4ob3o10b2o$11bo$14b2o$9b5o3bo$8bob2o2b2o11bo$12b2o
3b5o4b3o$6bobo2b3o11b2o2bo$6bo3b4o3b2o2bo6b3o$7b3o5bobo3bo$10b4o6bo$7b
2o5b2o2bo25bo$8bobobob3obo6bob2ob3o9b5o$8bobo2bo3b2o2bo3b3obo2bo8bo5b
o3b2o$7b2obo2bo3b2o2bo3b2ob2ob2o9b5obobobo$7bo2bobob3obo10b3o12bobobo
bo$8bo5b2o2bo10b2o2b2o9bo2bobobo$7b2ob4o6bo11b3o10bo3bo2bob2o$9bobo3b
obo3bo9b2ob2ob2o3bo2b3obob2obo$9bo2b2o3b2o2bo9bo2bob3o3bo2b3o7b3o$8b2o
bobo17b3ob2obo6bo3b2ob2obo2bo$7bo2b2o5b5o22bo3bo4bobobo$8bo3bo2b2o27b
ob4o3bobob2o$9b3obo4b3o26b2o2b5o$11bo2bob2o15b3o8bo2b2obobobo$11bobob
obo3bo12bo2b2o11bobo3b2o$10b2o3b2o4bo13b3o4bobob5obob2o2bo$9bo2b2obob
ob2o15bo5bo8bo5b2o$9b2o6b2o24b7obob4o$11b4o4b2o29bobo3bo$11bo2bo2b2o2b
o19b3obob3o2bo2bo$17bo2bo24bo3bob2obo$18b2o19bobobo8bob2o$38bo4b5o3bo
4bo$38bo3bo2bo2bo2bob2o2bo$36b7obo2b2o4bobobo$36b2o4bo2bo2bobo2bob2o$
39b4o3bobob5o$37b2obobobob2obo5b2o$12bo22bo6bob2obobob4o2bo$12b3o9bo6b
2obob2o3b2o4bobobo2bobo$15bo7bo7bob2o3b3o2bob4o6bo$4bo9b2o7b3o9bob2ob
obo2bo$3b3o26b2o3bobo6b3o$30b3ob2obob7obobo$29bo6bobo3bo2bobobo$3b3o23b
2o5bo2bo6bobo$37b2o8bo$3bobo5b2o3b2o$3bobo5b2o2bo2bo7b2o$15bo2bo6bo2b
o$3b3o10b2o8b2o3$3b3o35b8o$4bo9b2o25bob4obo$15bo25b8o$12b3o17bo$11bo19b
o$o10b2o18b3o!