ConwayLife.com

Posted: **December 9th, 2025, 2:27 pm**

WhiteHawk wrote: December 8th, 2025, 4:20 pm The best reduction yet, guntrue_4800 in (3195 -> 3080)
Code: Select all

Doublepost, but the new super small p5 strikes again (3080 -> 2881)

x = 66, y = 43, rule = B3/S23
7b2o3b2o$7bobobobo9b2o$9bobo12bo$4b2o2bo3bo5b2ob3o$3bobo2bobobo5b2obo
$2bo2bob2obo$3b3o2bob2o6b3o$6b2o2b2o5bo2bo8bo$5bo2bob2o5b2o9b4o$5b2o2b
2o16b2obobo3b2o$26b3obo2bo2b2o$27b2obobo$28b4o$9b2o18bo$2o6bo2bo6b2o17b
2o$bo7b2o7bo18b2o14b2o$bobo12bobo34b2o8b2o$2b2o12b2o45bo$64bo$55bo7b2o
$19bo35bo6bo$19b3o26bo6bo6b3o$22bo24b3o15bo$21b2o23b2o2bo13b2o$45bo3b
2o$36b2o6b2o$36bo6b3o$8bo28b3o4b2o$7bobo29bo5bo3b2o$7bobo27b2o7b2o2bo
9b2o$8bo22b2o4bo8bo2bo10b2o$12b2o10b2o5bobo4bo7bo9b2o$12bobo9b2o7bo3b
2o7bo2bo$14bo18b2o12b2o$14b2o$20bo$19bobob2o$19bobobobo$16b2obobobobo
2bo$16bo2bo2b2ob4o$10bo7b2o4bo$11bo12bobo$9b3o13b2o!
!

EDIT:
guntrue_5220 reduced (4675 -> 3888)

Code: Select all

x = 53, y = 71, rule = B3/S23
15b2o$2o12bo2bo$bo13b2o$bobo$2b2o$8bo12bo$7bobo10bobo$8bo11bobo$2b2o17b
o8b2o$bobo25bo2bo$bo14b2o12b2o$2o13bobo$16bo$33b2o$8b2o23bo$8bo4b2o19b
3o$9bo3b2o21bo$10bo7b2o$8bob4obo3bo32bo$7bobo3bob4o31bobo$7bo2bo2bo37b
2o$8b2o2b2o3b2o$17b2o$7bob5o$3bo3b2obo3bo$3bo9b2o27bo4bo$40b2ob4ob2o$
3bo38bo4bo$2bobo$15b2o8b2o$2b3o9bobo7bo2bo$10b2o2b2o9b2o$10b2o6bo$2b3o
12b2o$17bobo8b2o$2bobo23bo$3bo25b3o$31bo13bo$3bo9b2o29bobo$3bo10bo29b
o2bo$11b3o26b2ob2ob2o$11bo28b2obo2bo$36b2o7bo2bo$14bo21b2o8b3o$13bobo
27b3o$13b3o26bo3bo$14b2o26bob2obo$14b3o26bo3bo$15b2o28b2ob2o$27bo3b2o
3bo9bobo$11bo3b2o9b2o3bo5bo8bobo$16bo8b3o4b5o10bo$11bo3bo10b2o5bo2bo$
13bo13bo6bo$16bo6bo13bo$14bo2bo5b2o10bo3bo$3bo10b5o4b3o8bo$2bobo8bo5b
o3b2o9b2o3bo$2bobo9bo3b2o3bo$b2ob2o28b2o$3bo3bo26b3o$3bob2obo26b2o$4b
o3bo26b3o$5b3o14b2o11bobo$2b3o8b2o7bobo11bo$2bo2bo7b2o9bo$4bo2bob2o13b
2o$3b2ob2ob2o$3bo2bo$4bobo$5bo!

EDIT 2: guntrue_783 reduced (3168 -> 3111)

Code: Select all

x = 51, y = 61, rule = B3/S23
44bo$43bobo$43bo2bo$39b2ob2ob2o$24b2o13b2obo2bo$25bo9b2o7bo2bo$13bo11b
obo7b2o8b3o$12bobo11b2o14b3o$13bo27bo3bo$41bob2obo$29bo12bo3bo$27bo2b
o13b2ob2o$26bo4bo13bobo$25bo4b2ob3o9bobo$25bo2bo2b2o2bo10bo$13bo11bo6b
2ob2o$12bobo5b2o4bobo5b3o$12b3o5bobo4b2o5bobo$12b2ob2o6bo11bo$2bo10bo
2b2o2bo2bo$bobo9b3ob2o4bo$bobo13bo4bo$2ob2o13bo2bo$2bo3bo12bo$2bob2ob
o$3bo3bo27bo$4b3o27bobo$b3o8b2o21bo$bo2bo7b2o$3bo2bob2o29bo$2b2ob2ob2o
27b3o$2bo2bo30bo$3bobo30b2o$4bo$45b2o$45bobo$47bo$47bob2o$44b2obobo$33b
obo8b2obobo$34b3ob2o7bob2o$28b2o4bo2bo2bo3b4o2bo$27bobo8b2o4bo3b2o$20b
o6bo18b2o$20b3o3b2o19bo$23bo21bo$22b2o21b2o2$13b2o$12bobo$12bo$9b2obo
7bo$10bobob2o2b3o$10bobob2o2b2o$9b2obo7bo$9bo2b4o3bo10b2o$10b2o3bo3bo
10bobo$12b2o18bo$12bo13bo5b2o$14bo12bo$13b2o10b3o!

Posted: **December 9th, 2025, 8:24 pm**

WhiteHawk wrote: December 8th, 2025, 4:20 pm guntrue_7020, which probably can be reduced by more than what is done here (I post it in the hopes that it can)

Code: Select all

x = 77, y = 53, rule = B3/S23
bo9bo17b2o5b2o2b2ob2o$b3o5b3o17bo2b2obo2bo2bob2o$4bo3bo21b2obob2ob2ob
o$3b2o3b2o16b2o8bobo2bob2o$23bo2bo2bobob4obob2o2bo$23b3o2b3ob2o2bobo2b
o$26b2o7b2ob4o$6bo12b2o4bo2bo6b3ob3o$5bobo6b2o2bo2bo4b2o$6bo7bobo2bob
o$17b2obo$18bo13b2o$18bo4b2o7b2o7b2o$15b2ob3o3bo16bo$bo13b2o4bo2bobo12b
obo$obo8bo6b2obo3b2o4b2o6b2o$obo7bobo6bob2o7bobo31b2o$bo8b2o7bo10b2o32b
o4bo$17bobo46bobobo$17b2o24bo7b2o9b5obo2bo$6b2o35b3o5b2o9bo5bob2o$5bo
2bo37bo17b5o3b2o$6b2o37b2o23b2o2bo$63bo2bobo3b2o$63bo5b3o$31bo39bo$30b
obo22bo8bo2bo3bobo$30bobo21b4o8b2o4b2o$31bo21b2o$9bo25b2o15b2o2bob2o$
8bobo24bobo14bo2b2o3bo$8bobo26bo13b2o3b2o2bo$9bo27b2o2b2o9bob4o3bo$13b
2o26b2o8b2o8b2o8b2o$13bobo36bo3b4obo9b2o$15bo37bo2b2o3b2o$15b2o36bo3b
2o2bo$54b2obo2b2o$44b2o13b2o$56b4o$26bo13b2o6b2o8bo$26bo16b4o$25bobo11b
obo6bobo22b2o$26bo10b3obobo2bobob3o20bo$26bo9bo3b2ob4ob2o3bo13b2o5b3o
$26bo10b2o3bo4bo3b2o14bo8bo$26bo12b2o2bo2bo2b2o10b2o5b3o$25bobo11bob2o
4b2obo10b2o7bo$26bo$26bo$19bo$20bo$18b3o!

I think it can. (I'm pretty sure that this one won't explode) (5187): EDIT by dvgrn: That "5187" and the width-90 height-57 RLE got me very confused; the actual bounding box was 76*53 = 4028.

Code: Select all

x = 90, y = 57, rule = B3/S23
3$31b2o5b2o2b2ob2o$31bo2b2obo2bo2bob2o$5bo9bo16b2obob2ob2obo$5b3o5b3o
12b2o3bobo4bo2bob2o$8bo3bo12bo2bo2bob4obobob2o2bo$7b2o3b2o11b3o2b2o6b
3o4bo$23b2o3b2o8bo2b2o$24bo2bo2bobo5bo3bobo$24bobob2o4b2o2bo$10bo12b2o
bo$9bobo6b2o2bo2b2o$10bo7bobo2bo10b2o$21b2ob3o7b2o7b2o$22bo3bo16bo$22b
o3bobo12bobo$19b2ob2o3b2o4b2o6b2o$5bo13b2obo9bobo31b2o$4bobo8bo8bo7b2o
32bo4bo$4bobo7bobo6b2o43bobobo$5bo8b2o7bo21bo7b2o9b5obo2bo$21bobo21b3o
5b2o9bo5bob2o$21b2o25bo18b2o5b2o$10b2o35b2o18b2ob2obo2bo$9bo2bo57bo3b
2o$10b2o60b2o$33bo20b3obo14bo$32bobo22bobo8b2o3bobo$32bobo21bo11b2o4b
2o$33bo19bo3b2ob2o$37b2o14b2o4bobo$37bobo14bobo$13bo25bo16bo$12bobo24b
2o2b2o9bo$12bobo28b2o9b3o4b3o9b2o$13bo49bo9b2o$17b2o42bo$17bobo41bobo
$19bo8bo27bobo4b2o$19b2o7bo27b2ob2o3bo$61bo$28bo16b4o9bobo$27bobo14bo
4bo9bob3o$41bobobo2bobobo22b2o$27b3o9b3obobo2bobob3o20bo$38bo3b2ob4ob
2o3bo13b2o5b3o$39b2o3bo4bo3b2o14bo8bo$27b3o11b2o2bo2bo2b2o10b2o5b3o$41b
ob2o4b2obo10b2o7bo$27bobo$28bo$21bo$22bo5bo$20b3o5bo!

Posted: **December 9th, 2025, 8:55 pm**

ElijahKen wrote: December 9th, 2025, 8:24 pm
I think it can. (I'm pretty sure that this one won't explode) (5187):
Code: Select all

Remember to tuck in those Pentadecathlons (5187 -> 3800)

Code: Select all

x = 75, y = 50, rule = B3/S23
27b2o5b2o2b2ob2o$27bo2b2obo2bo2bob2o$bo9bo16b2obob2ob2obo$b3o5b3o12b2o
3bobo2bobo2bob2o$4bo3bo12bo2bo2bo2bob3obob2o2bo$3b2o3b2o11b3o2b2obo3b
o2b2o2b2o$19b2o3b2o2b5o5b3o$20bo2bo2bo2b6o4b2o$20bobob2o7b2o$6bo12b2o
bo$5bobo6b2o2bo2b2o$6bo7bobo2bo10b2o$17b2ob3o7b2o7b2o$18bo3bo16bo$18b
o3bobo12bobo$15b2ob2o3b2o4b2o6b2o$bo13b2obo9bo2bo30b2o$obo8bo8bo7bo2b
o30bo4bo$obo7bobo6b2o8b2o33bobobo$bo8b2o7bo21bo7b2o9b5obo2bo$17bobo21b
3o5b2o9bo5bob2o$17b2o25bo18b2o5b2o$6b2o35b2o18b2ob2obo2bo$5bo2bo57bo3b
2o$6b2o41b3o16b2o$29bo9b2o7bo3bo16bo$28bobo8bobo6b2ob2o11b2o3bobo$28b
obo8bo8bo4bo10b2o4b2o$29bo19b2ob2o$33b2o18bo$33bobo12b2ob2o$9bo25bo12b
3o$8bobo24b2o2b2o4bob2o13b2o$8bobo28b2o2b2ob2o14b2ob2o2b2o$9bo36b2o13b
2obo4b2o$13b2o44b3o$13bobo5bo35b2ob2o$15bo4b3o33bo$15b2o2b5o32b2ob2o$
56bo4bo8bo$41b4o12b2ob2o6bo$40bo4bo11bo3bo7bo2bo$37bobobo2bobobo9b3o11b
o$35b3obobo2bobob3o20bo$34bo3b2ob4ob2o3bo13b2o5b3o$19b5o11b2o3bo4bo3b
2o14bo8bo$20b3o14b2o2bo2bo2b2o10b2o5b3o$14bo6bo15bob2o4b2obo10b2o7bo$
15bo$13b3o!

I am guilty of not doing that myself (guntrue_5220 from the last post, down from 3888 to 3621)

Code: Select all

x = 70, y = 49, rule = B3/S23
bo9bo46bo$b3o5b3o16bo4bo22b3o4b2o$4bo3bo17b2ob4ob2o19bo3b2o2bo2b2o$3b
2o3b2o18bo4bo22b3o2bobob2obo$58bobobobo4bo$60bobo3b3o$59bo2bo2b2o$6bo
12b2obo37b2o$5bobo6b2o2bo2b2o42b2o$6bo7bobo2bo10b2o26bo6b2o$17b2ob3o7b
2o7b2o16b3o$18bo3bo16bo16b2ob2o$18bo3bobo12bobo3bo11b2o3b2ob2o$15b2ob
2o3b2o4b2o6b2o3bobo11b2ob2o2b2o$bo13b2obo9bobo12bo$obo8bo8bo7b2o$obo7b
obo6b2o$bo8b2o7bo21bo$17bobo21b3o$17b2o25bo$6b2o35b2o$5bo2bo53b2o$6b2o
54bo$29bo33b3o$28bobo34bo$28bobo$29bo$33b2o8b2o$33bobo6b2o$9bo25bo8bo
$8bobo24b2o$8bobo$9bo$13b2o7bo$13bobo5bobo38bo$15bo25b2o2b2ob2o11bobo
$15b2o24b2ob2o3b2o11bo$21b3o21b2ob2o$21b3o22b3o$22bo16b2o6bo$39b2o$44b
2o$22bo16b2o2bo2bo$21b3o13b3o3bobo$21b3o12bo4bobobobo$37bob2obobo2b3o
$15bo22b2o2bo2b2o3bo$16bo4bobo17b2o4b3o$14b3o5bo24bo!

EDIT: Here are some newly reduced guns: guntrue_3510 (4717 -> 4081)

Code: Select all

x = 77, y = 53, rule = B3/S23
37bo$35bobo$25b2o6b2o12b2o$24bo3bo4b2o12b2o$13b2o8bo5bo3b2o$13b2o8bo3b
ob2o4bobo12b2o$23bo5bo7bo12b2o$24bo3bo$25b2o21b4o$36bo6b2o2bo3bo$37b2o
4b2o2b2o$28b2o6b2o35bo$28bo2b2o39bobo$29b2obo39bobo$33bo37b2o2b2o$33b
o39bobo$29b2obo6bo21b2o7b4o2bo$28bo2b2o5bo22b2o6bo4bobo$28b2o8b3o7b2o
19bob3obo$49bo20b2obo$49bobo18b2obo$50b2o17bob3obo$69bo4bobo$18b2o50b
4o2bo$19bo11bo41bobo$13b2ob3o12bobo6b5o13bobo10b2o2b2o$13b2obo14b2o6b
ob3obo2b2o8bob4o8bobo$16bo23bo3bo3b2o4b2obo2bob2o8bobo$13b2o26b3o9bob
5o2b2o9bo$12bo2b2o3b2o20bo12bo10b3o$12b2o6bobo34b3o$21b3o12bo21bo$22b
3o8b4o29bo$21b3o8b4o5b2o22b3o$20bobo9bo2bo4bo2bo12b3o10bo$11bo8b2o10b
4o5b2o18b2o2b5obo$11b3o19b4o24b2obo2bob2o4b2o$14bo21bo11b2o11b4obo8b2o
$13b2o33bo15bobo$45b2obo$4b2o39bo2bob2o$3bobo41b2obob5o$3bo46bob5o16b
2o$2obo7bo35b4o22bobo$bobob2o2b3o34bo4b3o21bo$bobob2o2b2o36bobobobo21b
2o$2obo7bo36b2obob3o6b2o$o2b4o3bo10b2o27bobo3bo5b2o$b2o3bo3bo10bobo26b
obo2b2o14b2o$3b2o18bo27bo19bobo$3bo13bo5b2o48bo$5bo12bo54b2o$4b2o10b3o
!

guntrue_585 (2915 -> 2900) (also applied to guntrue_1755)

Code: Select all

x = 58, y = 48, rule = B3/S23
6bo7b2o10bob2o4b2obo$6b3o5b2o10b2o2bo2bo2b2o$o8bo14b2o3bo4bo3b2o12b3o
$3o5b2o13bo3b2ob4ob2o3bo11bobo$3bo20b3obobo2bobob3o12b3o$2b2o22bobobo
2bobobo14b3o$29bo4bo17b3o$14b2obo12bo2bo18b3o$5b2o8bobo12bo2bo18bobo$
6b2o2bo6bo34b3o$7b4o$8b2o$8b2ob2o$4b2o4b3o$4b2o28b2o$27b3o4b2o2b2o$27b
2ob2o7bo$30b2o7bobo15bo$29b4o7b2o13bobo$22bo6bo2b2o11bo10b2o$3b2o4b2o
11bobo8b2o9bobo$3bobo3b2o11bob2o18bobo$5bo39bo$5b2o$3b2o3b3o$2bo2bobo
3bo18b2o$3b2o3bob2o18bo$5b4o5bo9b2o5b3o$5bo2bob5o9b2o7bo$6bobobo$7bo4b
o$11b2o$36b2o12b2o$35bobo12bobo$35bo7b2o7bo$34b2o6bo2bo6b2o$43b2o3$40b
o2b2o4b2o$34bobo3bo5bobo2bo$36b2o2bo8b2o$33bo4b3o6b2o2b3o$32bo2b2obob
ob4obo2bo2bo$32b2obo2bo4bobo3b2o$35bob2ob2obob2o$32b2obo2bo2bob2o2bo$
32b2ob2o2b2o5b2o!

guntrue_705 (5332 -> 5208)

Code: Select all

x = 84, y = 62, rule = B3/S23
30b2o$29bobo21b2o$23b2o4bo23bobo$21bo2bo2b2ob4o21bo4b2o$5b2o14b2obobo
bobo2bo17b4ob2o2bo2bo13b2o$4bobo17bobobobo20bo2bobobobob2o13bobo$4bo19b
obob2o24bobobobo18bo$b2ob2o19bo29b2obobo18bob2o$b2obo54bo19bob2o$4bob
2o30b2o36b2obo$b4o13bo10b2o7bo6b2o18bo11bob4o$o5bo9b3o10b2o5bobo7bo7b
2o9b3o9b2o4bo$b4o10bo20b2o8bobo5b2o12bo10b4o$4b2o8bobo30b2o18bobo9bo$
4b2o8bobo50bobo9bob2o$b3o11bo52bo10bo$82bo$o82bo$obo78bobo$b2o23b2o53b
2o$27bo29b2o$24b3o30bo$24bo33b3o$60bo2$19b2o42b2o$19bobo40bobo$b2o18b
o40bo18b2o$2bo9b2o7b2o38b2o7b2o9bo$bo10b2o56b2o10bo$b2o78b2o$4b2o72b2o
$b2ob2o72b2ob2o$2bo78bo$o3b2o72b2o3bo$4o2bo70bo2b4o$3bobobo68bobobo$2o
bo2bo51bo18bo2bob2o$bobo20b2o32b3o19bobo$o2b2o19bo36bo17b2o2bo$obo2bo
bo14bobo35b2o14bobo2bobo$bobo2b2o14b2o52b2o2bobo$2bo78bo3$59b3o20bo$4b
2o53bo20b3o$4bobo53bo18bo$6bo72b2o$6b2o42bo$50b3o$6b2o45bo$5bo2bo16b2o
25bo$3bo2b2o17b2o25b2o$3b2obo43b2o2bo$6bo42bo2b3o$6b2o42bo23bo8bo$13b
ob2o34b4o6b2o3b2o5bobo5bobo$11b3obobobo33bo7b2o3b2o6bo7b2o$10bo4bob2o
bo34bo$10b2o3bo4bo33b2o$14b2o4b2o!

Using the row-off lso reduces guntrue_717 guntrue_753, guntrue_279, guntrue_849, guntrue_291 and more that I didn't get to (note the p705 gun uses the wrong p3 sparker, though the other ones listed here do.

Lastly for now, guntrue_885 reduced (3344 -> 3311)

Code: Select all

x = 76, y = 43, rule = B3/S23
6b2o5b2o2b2ob2o20bo$6bo2b2obo2bo2bob2o19bobo$7b2obob2ob2obo20b3obo$3b
2o3bobo4bo2bob2o16bo4bob2o$o2bo2bob4obobob2o2bo16bobobobobo$3o2b2o6b3o
4bo12b2o4b2obobo$3b2o8bo2b2o16bo8bobo9b2o$2bo2bobo5bo3bobo14bobo7bobo
8b2o$3b2o4b2o2bo21b2o7bo2bo$48bo$43bo5bo$9b2o31bo3bo3bo$2o6bo2bo6b2o22b
o2bobo2bo10b2o$bo7b2o7bo23bo3bo3bo8bo2bo$bobo12bobo24bo5bo9b2o2b2o$2b
2o12b2o26bo3bo15bo$45b3o14bo$62b2o$19bo37bo$19b3o8bo25bobo$22bo5b2o25b
o2bo10b2o$21b2o6b2o25b2o11b2o$61bo$60bobo$42b2o15b2ob2o$8bo34bo14bobo
2bo$7bobo30b3o16b4obo$7bobo30bo19bo3bo$8bo22b2o23bo5bob2o$12b2o10b2o5b
obo21bobo5bo9b2o$12bobo9b2o7bo20bo7b2o8bo2bo$14bo18b2o20b3o4b2o6bo2b2o
$14b2o45b2o6bob2o$51b2o17bo2b2o$50bobo3b3o12b2o2bo$50bo5b3o15b2o$21b2o
b2o23b2o6bo7bo5b2obo$17b2o3bob2o2b2o34b4o3bo2bo$17bo2bobo6bo34b2o6b2o
$19b2ob7o$12bo8bo$13bo7bob4o38b2o$11b3o8b2o2bo38b2o!

Posted: **December 10th, 2025, 10:34 pm**

Doublepost, but I think a surprise reduction to guntrue_201 with one p3 eater warrants separate mention (2280 -> 2242)

Code: Select all

x = 59, y = 38, rule = B3/S23
41b2o$5b2o35bo$4bobo35bobo$4bo38b2o$b2obo11bo6b2o$b2obo11b3o4b2o28b2o
$4bob2o11bo33b2o$b4obo3bo7b2o$o4b2o3b3o23b2o$b4o8bo21bo2bo$4bo7b2o4bo
bo15b2o$b2obo13bobo$4bo14bo$bo40b2o$o17bo22bo$obo14bobo20bo$b2o13bo18b
o4bo2bo4b2o$12b2o2bo18bo12b2o$12bo4b2o16bob3ob2o$18bo19b3o$17b3o19bo$
15b2ob3obo16b2o4bo$8b2o12bo18bo2b2o$8b2o4bo2bo4bo18bo13b2o$17bo20bobo
14bobo$16bo22bo17bo$14b2o41b2o$38bo$37bobo$20b2o15bobo4b2o$19bo2bo21b
o$20b2o23b3o$38b2o7bo$3b2o33bo$3b2o28b2o4b3o$13bo19b2o6bo$14bo$12b3o!

guntrue_603 also reduced as a result (3240 ->3132)

Code: Select all

x = 58, y = 54, rule = B3/S23
15b2o$15bo35b2o$13bobo35bobo$13b2o38bo$33b2o6bo10b2ob2o$3b2o16b3o9b2o
4b3o9bobob2o$3b2o33bo14bo$19bo18b2o7bo2b2ob4o$19bo25b3o4bo4bo$18b3o23b
o8b4o$37b2o5b2o9bo$16bo13b2o5b2o13bo2bo$15bo14b2o21b3o$14b2o2bo36b2o$
13b3obobo36bo$14b2o2bo2b2o32bobo$15bo5bo33b2o$16b5o$17b3o$18bo$39bo$38b
3o$37b5o$b2o33bo5bo$obo32b2o2bo2b2o$bo36bobob3o$b2o36bo2b2o$2b3o21b2o
14bo$2bo2bo13b2o5b2o13bo$2bo9b2o5b2o$b4o8bo23b3o$o4bo4b3o25bo$b4ob2o2b
o7b2o18bo$4bo14bo33b2o$b2obobo9b3o4b2o9b3o16b2o$b2ob2o10bo6b2o$4bo24b
o$4bobo22b3o$5b2o25bo$31b2o2$22b2o$21bobo$21bo$18b2obo7bo$19bobob2o2b
3o$19bobob2o2b2o$18b2obo7bo$18bo2b4o3bo10b2o$19b2o3bo3bo10bobo$21b2o18b
o$21bo13bo5b2o$23bo12bo$22b2o10b3o!

guntrue_804 (3300 -> 3190)

Code: Select all

x = 58, y = 55, rule = B3/S23
15b2o$15bo35b2o$13bobo35bobo$13b2o38bo$33b2o6bo11bob2o$3b2o16b3o9b2o4b
3o11bob2o$3b2o33bo11b2obo$19bo18b2o7bo3bob4o$19bo25b3o3b2o4bo$18bobo23b
o8b4o$19bo17b2o5b2o7bo$18b2o10b2o5b2o14bob2o$16b2o2bo9b2o21bo$16b5o35b
o$11b3o2bob4o35bo$13bob2o38bobo$14b2obo3bo33b2o$16bobob2o$16bo2b3o17b
o$39bo$18bo$18bo17b3o2bo$36b2obobo$b2o33bo3bob2o$obo38b2obo$o35b4obo2b
3o$bo35b5o$4bo21b2o9bo2b2o$b2obo14b2o5b2o10b2o$4bo7b2o5b2o17bo$b4o8bo
23bobo$o4b2o3b3o25bo$b4obo3bo7b2o18bo$4bob2o11bo33b2o$b2obo11b3o4b2o9b
3o16b2o$b2obo11bo6b2o$4bo24b2o$4bobo21b3o$5b2o20bob2o$26bobo$26bo2bo$
27b2o$21b2o10b2o$20bobo9bo2bo$20bo12b2o$17b2obo7bo$18bobob2o2b3o$18bo
bob2o2b2o$17b2obo7bo$17bo2b4o3bo10b2o$18b2o3bo3bo10bobo$20b2o18bo$20b
o13bo5b2o$21bo13bo$20b2o11b3o!

guntrue_1206 (3960 -> 3828)

Code: Select all

x = 66, y = 58, rule = B3/S23
34bo5b2o$30b2obobo2bo3bo$30b2obobo2bo2b2o$33bobo2bo20b2o$28b6ob3o21b2o
$27bo2bo5b2o$27b2o3bobo16b3o$32bo17bo3bo$49bo2bo$48bobo2bo$33b2o10b4o
$34bo9bo2bo8b2o$34bobo7bo2bobobo3bobo$35b2o8b2o3bo5bo5b2o$55b2o5bo$55b
3o5b3o$30b2o23b3o7bo$19b2o10bo21bo5bo$7bo5bob2obo2bo9bobo19bobobobo$7b
3o3b2obob2obo10b2o2b2o$10bo10bobo12b2o8b2o4bobobobo$3b2o4b2o6b2obob2o
22b2o4bo5bo$4bo12b2obo33b3o$4bobo13bo9b2o22b3o$5b2o13b2o8b2o17b2o$49b
2o$8b2o27b2o$7bo2bo26b2o$8bobo$9bo10bo$19bobo6b2o23b2o$19b2o7bo24b2o$
7b2o17bobo12b2o$2obobo2bo17b2o13b2o17b2o$ob2ob3o7b2o18b3o22b2o$4bo9bo
2bo17b3o$4bob2o7b2o16bo5bo4b2o$5bobo25bobobobo4b2o8b2o$54b2o2b2o$32bo
bobobo19bobo$32bo5bo21bo$34b3o23b2o$34b3o$18bo16b2o$17bobo15bo5bo3b2o
8b2o$17bobo14bobo3bobobo2bo7bobo$18bo15b2o8bo2bo9bo$22b2o19b4o10b2o$22b
obo13bo2bobo$24bo14bo2bo$24b2o11bo3bo17bo$38b3o16bobo3b2o$54b2o5bo2bo
$31b2o21b3ob6o$31b2o20bo2bobo$19bo29b2o2bo2bobob2o$20bo28bo3bo2bobob2o
$18b3o29b2o5bo!

guntrue_1608 (3660 -> 3538)

Code: Select all

x = 58, y = 61, rule = B3/S23
15b2o$15bo35b2o$13bobo35bobo$13b2o38bo$33b2o6bo11bob2o$3b2o28b2o4b3o11b
ob2o$3b2o33bo11b2obo$38b2o7bo3bob4o$45b3o3b2o4bo$44bo8b4o$13b2o3bo18b
2o5b2o7bo$13b2ob2ob2o9b2o5b2o14bob2o$13b2obo2b2o9b2o21bo$9b2o45bo$10b
2o45bo$24b2o29bobo$9b3obo10b2o29b2o$9bobo$20b2o$20b2o$36b2o$36b2o$46b
obo$b2o29b2o10bob3o$obo29b2o$o45b2o$bo45b2o$4bo21b2o9b2o2bob2o$b2obo14b
2o5b2o9b2ob2ob2o$4bo7b2o5b2o18bo3b2o$b4o8bo$o4b2o3b3o$b4obo3bo7b2o$4b
ob2o11bo33b2o$b2obo11b3o4b2o28b2o$b2obo11bo6b2o$4bo24b2o$4bobo21b3o$5b
2o20bob2o$26bobo$26bo2bo$27b2o$21b2o10b2o$20bobo9bo2bo$20bo12b2o$17b2o
bo$18bobob2o$18bobob2o$17b2obo7b2o$17bo2b4o3bo2bo7b2o$18b2o3bo4b2o8bo
bo$20b2o18bo$20bo19b2o$21bo$20b2o2$28bo$23b3ob2o2b2o$23b4o4b2o7bo$27b
2o12bo$39b3o!

EDIT:

ElijahKen wrote: December 11th, 2025, 9:32 am
The tremi-snark can be pulled in one fd by using a smaller queen bee stabilization (4081 -> 3952):
Code: Select all

Helps reduce some other guns too, like guntrue_4230 and guntrue_3870

Posted: **December 11th, 2025, 4:27 am**

Here's a reduction of the p585 gun from 58x50 (2900-cell BB) to 57x50 (2850-cell BB), achieved with a rather-silly p3 eater weld that really should not have worked, but somehow does anyway:

Code: Select all

x = 57, y = 50, rule = B3/S23
52bo$52bo$38bo$6bo7b2o10bob2o4b2obobo12bo$6b3o5b2o10b2o2bo2bo2b2o2bo
10bobo$o8bo14b2o3bo4bo3b2o3b2o$3o5b2o13bo3b2ob4ob2o5bobo6b3o$3bo20b3ob
o6bob3o2bo$2b2o9bo12bobobo2bobobo2bob2o$14bo12b2o6b2o2b2obobo6b3o$7b2o
2bo2b2o13b6o7bo$6b3obobob3o22b4ob2o5bobo$7b2o2bo2b2o22bo4bo8bo$8bo5bo
24b4o$9b5o26bo11bo$10b3o27bo2bo8bo$4b2o5bo28b3o$4b2o28b2o3b2o$28bo5b2o
3bo15bo$27b3o8bobo15bo$26b5o8b2o13b3o$25bo5bo12bo$24b2o2bo2b2o10bobo$
3b2o4b2o12b3obobob3o9bobo$3bobo2bo2bo12b2o2bo2b2o11bo$5bo5bo13bo$5bobo
3bo14bo$3b2o4bobo$2bo2b3o3bo18b2o$3b2o3b4o18bo$5b2obo5bo9b2o5b3o$5bo2b
ob5o9b2o7bo$6bobobo$7bo4bo$11b2o22b2o12b2o$34bobo12bobo$34bo7b2o7bo$
33b2o6bo2bo6b2o$42b2o3$39bo8b2o$34bo4b2o6bo2bo$33b2o6b5o2b2o$33bo2bobo
bo3bob2o2b3o$31bo2b2obo3bo4bo2bo2bo$31b2obo2bobo2bobo3b2o$34bob2ob2obo
b2o$31b2obo2bo2bob2o2bo$31b2ob2o2b2o5b2o!

Posted: **December 11th, 2025, 9:32 am**

WhiteHawk wrote: December 10th, 2025, 10:34 pm Doublepost, but I think a surprise reduction to guntrue_201 with one p3 eater warrants separate mention (2280 -> 2242)

Code: Select all

x = 59, y = 38, rule = B3/S23
41b2o$5b2o35bo$4bobo35bobo$4bo38b2o$b2obo11bo6b2o$b2obo11b3o4b2o28b2o
$4bob2o11bo33b2o$b4obo3bo7b2o$o4b2o3b3o23b2o$b4o8bo21bo2bo$4bo7b2o4bo
bo15b2o$b2obo13bobo$4bo14bo$bo40b2o$o17bo22bo$obo14bobo20bo$b2o13bo18b
o4bo2bo4b2o$12b2o2bo18bo12b2o$12bo4b2o16bob3ob2o$18bo19b3o$17b3o19bo$
15b2ob3obo16b2o4bo$8b2o12bo18bo2b2o$8b2o4bo2bo4bo18bo13b2o$17bo20bobo
14bobo$16bo22bo17bo$14b2o41b2o$38bo$37bobo$20b2o15bobo4b2o$19bo2bo21b
o$20b2o23b3o$38b2o7bo$3b2o33bo$3b2o28b2o4b3o$13bo19b2o6bo$14bo$12b3o!

Here is a p3 eater for the other side (minimal population) (2242 -> 2204):

Code: Select all

x = 58, y = 38, rule = B3/S23
41b2o$5b2o35bo$4bobo35bobo$4bo38b2o$b2obo11bo6b2o$b2obo11b3o4b2o28b2o$
4bob2o11bo33b2o$b4obo3bo7b2o$o4b2o3b3o23b2o$b4o8bo21bo2bo$4bo7b2o4bobo
15b2o$b2obo13bobo$4bo14bo$bo40b2o$o17bo22bo$obo14bobo20bo$b2o13bo18bo
4bo2bo4b2o$12b2o2bo18bo12b2o$12bo4b2o16bob3ob2o$18bo19b3o$17b3o19bo$
15b2ob3obo16b2o4bo$8b2o12bo18bo2b2o$8b2o4bo2bo4bo18bo13b2o$17bo20bobo
14bobo$16bo22bo17bo$14b2o40bo$38bo9b2o3bo$37bobo9bo3bob2o$20b2o15bobo
4b2o2bo4bo$19bo2bo21bo3b2o3b4o$20b2o23b3o3b2o4bo$38b2o8bob2ob2ob2o$3b
2o33bo6b2obo2bobo$3b2o28b2o4b3o3bo3b2o2bo$13bo19b2o6bo4b3o4b2o$14bo33b
o$12b3o!

EDIT:

WhiteHawk wrote: December 9th, 2025, 8:55 pm EDIT: Here are some newly reduced guns: guntrue_3510 (4717 -> 4081)

Code: Select all

x = 77, y = 53, rule = B3/S23
37bo$35bobo$25b2o6b2o12b2o$24bo3bo4b2o12b2o$13b2o8bo5bo3b2o$13b2o8bo3b
ob2o4bobo12b2o$23bo5bo7bo12b2o$24bo3bo$25b2o21b4o$36bo6b2o2bo3bo$37b2o
4b2o2b2o$28b2o6b2o35bo$28bo2b2o39bobo$29b2obo39bobo$33bo37b2o2b2o$33b
o39bobo$29b2obo6bo21b2o7b4o2bo$28bo2b2o5bo22b2o6bo4bobo$28b2o8b3o7b2o
19bob3obo$49bo20b2obo$49bobo18b2obo$50b2o17bob3obo$69bo4bobo$18b2o50b
4o2bo$19bo11bo41bobo$13b2ob3o12bobo6b5o13bobo10b2o2b2o$13b2obo14b2o6b
ob3obo2b2o8bob4o8bobo$16bo23bo3bo3b2o4b2obo2bob2o8bobo$13b2o26b3o9bob
5o2b2o9bo$12bo2b2o3b2o20bo12bo10b3o$12b2o6bobo34b3o$21b3o12bo21bo$22b
3o8b4o29bo$21b3o8b4o5b2o22b3o$20bobo9bo2bo4bo2bo12b3o10bo$11bo8b2o10b
4o5b2o18b2o2b5obo$11b3o19b4o24b2obo2bob2o4b2o$14bo21bo11b2o11b4obo8b2o
$13b2o33bo15bobo$45b2obo$4b2o39bo2bob2o$3bobo41b2obob5o$3bo46bob5o16b
2o$2obo7bo35b4o22bobo$bobob2o2b3o34bo4b3o21bo$bobob2o2b2o36bobobobo21b
2o$2obo7bo36b2obob3o6b2o$o2b4o3bo10b2o27bobo3bo5b2o$b2o3bo3bo10bobo26b
obo2b2o14b2o$3b2o18bo27bo19bobo$3bo13bo5b2o48bo$5bo12bo54b2o$4b2o10b3o
!

The tremi-snark can be pulled in one fd by using a smaller queen bee stabilization (4081 -> 3952):

Code: Select all

x = 76, y = 52, rule = B3/S23
37b2o$36b3o$24bo8bob2o9b2o$24bobo6bo2bo4bo5bo$12b2o11bobo5bob2o5bo$12b
2o11bo2bo7b3o3bo3bo2b2o$25bobo9b2o5bo4b2o$24bobo$24bo9bo12b4o$35b2o5b
2o2bo3bo$34b2o6b2o2b2o$27b2o43bo$27bo2b2o39bobo$28b2ob2o38bobo$31b2o37b
2o2b2o$31b2o6bo32bobo$28b2ob2o5bo21b2o8b3o2bo$27bo2b2o6b3o19b2o7bo3bo
bo$27b2o18b2o19bob3obo$48bo19bo3bo$48bobo17bo3bo$49b2o17bob3obo$69bo3b
obo$31bo6b2o3b2o25b3o2bo$31bobo5b5o28bobo$31b2o6b2ob2o26b2o2b2o$39b2o
b2o3b2o7b2o13bobo$10b2o28b3o4b2o4bo3b2ob2o9bobo$11bo41bo7bo10bo$11bob
o4bo34bobo2b2obo3b2o$12b3ob4o34bobo9bo$14b2obob2o14b2o16bo2bo8bo2bo$14b
o2bob3o11bo2bo17bo2bo8bo2bo$15bobob2o4b2o5bo7b2o14bo9bobo$11bo4b4o5b2o
5bo6bo2bo13b2o3bob2o2bobo$11b3o4bo7bo5bo7b2o19bo7bo$14bo18bo2bo24b2ob
2o3bo4b2o$13b2o20b2o10b2o16b2o7b2o$47bo$4b2o38b2obo$3bobo38bo2bob2o$3b
o42b2ob2o3b2o$2obo7bo42b2o16b2o$bobob2o2b3o34b3ob2o20bobo$bobob2o2b2o
34bo4bo23bo$2obo7bo34bobo3bo21b2o$o2b4o3bo10b2o24b2obob3o6b2o$b2o3bo3b
o10bobo25bobo3bo5b2o$3b2o18bo25bobo2b2o14b2o$3bo13bo5b2o25bo19bobo$5b
o12bo53bo$4b2o10b3o53b2o!

Posted: **December 11th, 2025, 2:30 pm**

guntrue_1710 reduced (3944 -> 3740)

Code: Select all

x = 68, y = 55, rule = B3/S23
32b2o20bo$32bobo18bo2bo$20bo12b3o17bo2bo2bo$17b4o3b2o8b3o6b2o10bo3bo$
16b4o3b2o8b3o7b2o14bo$9b2o5bo2bo3b2obob2o2bobo$9b2o5b4o4bobob2o2b2o$17b
4o3bob2o13bo$20bo20b3o9b2o3b2o$44bo7bo$43b2o7b2ob5o$34bo17b2ob2o$35b2o
15bo3bo$34b2o16b2ob2o$49b5ob2o7b2o$31b2o23bo7bo$31b2o16b2o3b2o9b3o$31b
o35bo$27bob5o5bo$26bo3b3o5bo$27bo10b3o8bo$49bo3bo$49bo2bo2bo$52bo2bo$
54bo2$31bo6b2o3b2o$31bobo5b5o$31b2o6b2ob2o$39b2ob2o$10b2o28b3o$11bo$11b
obo4bo$12b3ob4o$14b2obob2o14b2o$14bo2bob3o11bo2bo$15bobob2o4b2o5bo7b2o
$11bo4b4o5b2o5bo6bo2bo$11b3o4bo7bo5bo7b2o$14bo18bo2bo$13b2o20b2o2$4b2o
$3bobo$3bo$2obo7bo$bobob2o2b3o$bobob2o2b2o$2obo7bo$o2b4o3bo10b2o$b2o3b
o3bo10bobo$3b2o18bo$3bo13bo5b2o$5bo12bo$4b2o10b3o!

Complex older design, for comparison

Code: Select all

x = 58, y = 68, rule = B3/S23
34b2o13b2o$34b2o9b2obobo$20bo10b2o12b2obo$20bobo7b3o15b2o$23b2o6b2o12b
2o$9b2o12b2o9b2o5b2o2bo$9b2o12b2o9b2o5bobobo5b3o$20bobo20bob2o$20bo11b
o10bo7bobo$30bobo11b3o3b5o$31b2o13bo2b2o3b2o$49b2o3b2o3$52b2o$39bo10b
2ob2o$2b2o10b2o24bo9bo2bo$2b2o10b2o22b3o12bo$32b2o16bo$3bo28b2o9bo7b2o
$2bobo36b4o$2bobo21bo13bob5o$3bo17b2o3bobo10b2o6bo3b2o3b2o$21bo2bo5b2o
8b3obo3bo3b5o$22b6ob3o9b2o2bobo5b3o$2obob2o6b3o11bobo2bo21bo$o5bo5bo3b
o7b2obobo2bo2b2o$bo3bo5bo5bo6b2obobo2bo3bo$2b3o6b2obob2o10bo5b2o3$14b
o22bobo$13bobo21b2o$13bobo22bo15b2o$9b2o3bo39b2o$8b3o$5bob2o5b2o28b2o
$5bo2bo4bo2bo27bobo$5bob2o5b2o30bo$8b3o35b2o$9b2o3$31b2o$7b2o22b2o$8b
o$5b3o3bo5b2o$4bo3b4o4bo2bo$4bobo10b2o$5b2ob2o$8b2o$5b2o$5bo$6bo$5b2o
17b2o$24bo$25b3o$7b2o5b2o11bo$6bobo4bo2bo$6bo6bobo3b2o$5b2o7bo4bobob2o
$10b2o9bobo$11bo8b2o2bo$8b3o11b2o$8bo11b2o$21bo22bo$20bo24bo$20b2o21b
3o!

EDIT: guntrue_1590 reduced (4575 -> 4462)

Code: Select all

x = 93, y = 46, rule = B3/S23
8b2o3b2o$8bobo2bo$4bob2o2bo3bo$4b2obobob4o5bo$8b2obo8b3o10b2o$13b2o8b
o9bo$14bo7b2o7bobo$14bob2o13b2o$9b6obo2bo46b2o$16bob2o46b3o$7bo5bo2bo
8b2o30b2o9b2obo8bo$7bo7b2o7bob3o28bo5bo4bo2bo6bobo$6b2o4bo15bo33bo5b2o
bo5bobo11b2o$bo4b2o3bo13b2obo25b2o2bo3bo3b3o7bo2bo11b2o$obobo4b2o15bo
3b2obo20b2o4bo5b2o9bobo$o2bo21bobo50bobo$b3ob2obo17b3o5bo19b4o12bo9bo
$3b3o2b2o17bo3bobo20bo3bo2b2o5b2o$5bo2b3o14b3o2bo26b2o2b2o6b2o$2bobo3b
o17b2o2b3o14bo28b2o11b2o$bo5b3o17bob2ob3o10b3o25b2o2bo9bo2bo$8bobo21b
o2bo8bo27b2ob2o$2bob2o3bo15b2o4bobobo8b2o26b2o12bo$7bob2o13bo3b2o4bo30b
o6b2o$7bo15bo4b2o36bo5b2ob2o10b2o$7b3obo7b2o7bo35b3o6b2o2bo11bo$9b2o8b
o2bo5bo7bob2o36b2o$16b2obo16bobo8b2o$16bo2bob6o9bo6bo2b2o38b2o3b2o$3b
2o13b2obo21b4o39b2o3b2o$2bobo7b2o7bo22b2o41b5o$2bo9bo8b2o18b2ob2o14b2o
3b2o6bo14bobo$b2o10b3o8bob2o13b3o17b5o5bobo$15bo5b4obobob2obo27b2ob2o
6b2o14b3o$21bo3bo2b2ob2obo18bo7b2ob2o$22bo2bobo6bo16b3o8b3o$21b2o3b2o
6bobo13bo$35b2o7b2o3bobo34bo$39b2o3b2o4b2o33b4o$38bobo27b2o14b2obobo$
38b2o10b2o16bo2bo11b3obo2bo$51bo11b2o7bo11b2obobo$44b2o5bobo8bo2bo6bo
12b4o$45bo6b2o9b2o7bo7bo5bo$42b3o23bo2bo9bo$42bo25b2o9b3o!

Really low population original for comparison

Code: Select all

x = 61, y = 73, rule = B3/S23
22b2o6b2o$21bo2bo4bo2bo$21bo2bo4bo2bo$21bo2bo4bo2bo$22b2o6b2o5$26b2o$
17b2o6bo2bo6b2o$18bo7b2o7bo$18bobo12bobo$19b2o12b2o5$51bo5b2o$49b3o4b
4o$48bo6bo2bobo$48b2o4bobo2b2o$53bobo$25bo19b2o5b2o$24bobo18b2o5b3o$24b
obo26bobo$25bo28b2o$29b2o$29bobo$31bo4bo$31b2o2b2o$35b2o$35bo4b3o$42b
o$41bo2$51b2o$47b2o2b2o$47b2o2bob2o$52b3o3$52b2o$52b2o4$7b2o$6bo2bo$6b
o$6bo$6bobo3bo$7bobo3bo$8bo4bo$9b4o5$26b2o$26bo$24bobo$24b2o2$5b2o$5b
2o$14b2o$6bo7b2o$5bobo$2o2bo2bo3b2o47bo$2obo8bo45bobo$4b2o3b3o47b2o$9b
o!

EDIT 2: Some 3n guns with reduced rectifiers
guntrue_213 (3894 -> 3828)

Code: Select all

x = 66, y = 58, rule = B3/S23
10b2o5b2o15b2obob2o$9bo2bo2bo3bo7bob2obo2bob2o2bo$9b2obo2bo2b2o7b2obo
b2obo4bobo$10bobo2bo19b5obo14bo$10bob3o16b2obo4bo14b3o$8bo4b2o16b2obo
bo3bo12bo$11bo23bobo3bo11b2o$6b3obo25bo3b2o$6b4o$6bo15b3o$21bo2bo$20b
o3bo$20bo$9b2o9bo3bo35b2o$10bo2b2o6bo2bo35b2o$10bobo2bo6b3o$8b2obob2o
$9bobobo$6b2ob3obo$4b2obo3b2o12b2o$2b2obo19bo$7bo18b3o29b2obob2o$2bo25b
o10b2o17b2ob2obo$2bob3o31bobo$2o36bo$2bo34b2o2$6bo$5bobo$4bo2bo$5b2o3$
b2o$obo$o$bo$4bo$b2obo32bo27bo$4bo32bobo23bobo$b4o32b2o25b2o$o$ob6o42b
o$b2o2b2obo40bobo$5bobo40bobo$8bo4bo32b3o2b3o3b2o$8bo4b3o20bo8bo3b2o3b
o2b2o$8bo7bo18bobo3bo4b3o2b2obo$15b2o18bobo2bobo5bobo2bo$36bo3bobo6bo
bo$17b2obo6b2o12bo8bo$17bo4bo3bo2bo7b4o$18b2o2bo4bobo$18bo3bo5bo7b3o$
19bo19bo$19bob2obo7b2o3bobo$23bo8bo2bobobobo$23bo9b2o5b2o!

guntrue_237 (4680 -> 4608)

Code: Select all

x = 72, y = 64, rule = B3/S23
16b2o5b2o15b2obob2o$15bo2bo2bo3bo7bob2obo2bob2o2bo$15b2obo2bo2b2o7b2o
bob2obo4bobo$16bobo2bo19b5obo14bo$16bob3o16b2obo4bo14b3o$14bo4b2o16b2o
bobo3bo12bo$17bo23bobo3bo11b2o$12b3obo25bo3b2o$12b4o$12bo3$34b2o$34b2o
30b2o$19b2o7bo37b2o$18bo2bo6b2o$17bob2o6bobo$17bo$16b2o$31b2o$11b2o18b
o$11bo20b3o29b2obob2o$9bobo22bo10b2o17b2ob2obo$9b2o33bobo$6b2o36bo$4b
2obo35b2o$2b2obo$7bo$2bo$2bob3o$2o$2bo2$6bo$5bobo$4bo2bo$5b2o2$43bo27b
o$b2o40bobo23bobo$obo40b2o25b2o$o$bo54bo$4bo50bobo$b2obo49bobo$4bo47b
3o2b3o3b2o$b4o46bo3b2o3bo2b2o$o51b3o2b2obo$ob6o46bobo2bo$b2o2b2obo46b
obo$5bobo48bo$8bo4bo$8bo4b3o$8bo7bo$15b2o$42bob3o$17b2obo6b2o12bobo$17b
o4bo3bo2bo11b2o$18b2o2bo4bobo11b3o$18bo3bo5bo7b4obo$19bo19bobo$19bob2o
bo7b2o3bobob2o$23bo8bo2bobobo2bo$23bo9b2o5b2o!

guntrue_549 (3712 -> 3648)

Code: Select all

x = 64, y = 57, rule = B3/S23
13b2o5b2o15b2obob2o$12bo2bo2bo3bo7bob2obo2bob2o2bo3bo$12b2obo2bo2b2o7b
2obob2obo4bobo2b3o$13bobo2bo19b5obo6bo$13bob3o16b2obo4bo7b2o$11bo4b2o
16b2obobo3bo$14bo23bobo3bo$9b3obo25bo3b2o$9b4o$9bo$26b2o31b2o$24b2obo
31b2o$24b2o$24b2obo$16b2o8b2o$15bo2bo43b2o$14bob2o44b2o$14bo$13b2o$28b
2o$28bo$29b3o$31bo10b2o$41bobo$41bo$40b2o$61b2o$35b2o24b2o$35bo$33bob
o$33b2o10bo$45b3o$48bo$47b2o$12b2o48b2o$12b2o48bo$59b2obo$58bo2bo$49b
2o8b2o$11bo37bob2o$11b3o37b2o$14bo34bob2o$13b2o34b2o2$4b2o25b2o3bo$3b
obo25bo3bobo$3bo28bo3bobo$2obo7bo21bo3bobob2o$bobob2o2b3o12b2o5bob4o2b
ob2o$bobob2o2b2o13bo5bobo3bobo$2obo7bo13b3o2bobo2bo2b2ob2o$o2b4o3bo10b
2o4bo3bo3b2o2bobo$b2o3bo3bo10bobo15bobo10b2o$3b2o18bo16bo11b2o$3bo13b
o5b2o$5bo12bo$4b2o10b3o!

This reduction reduces guntrue_621, guntrue_657

guntrue_534 (4130 -> 4071)

Code: Select all

x = 69, y = 59, rule = B3/S23
39b2o$39bobo$41bo4b2o$37b4ob2o2bo2bo10bo$37bo2bobobobob2o10bo$40bobob
obo13bo$41b2obobo14bobo$24b2o19bo14bob2o2b2o$23bobo24bo10b6obo$17b2o4b
o7b2o17b3o15bo$15bo2bo2b2ob4o4bo7b2o11bo10b4o$15b2obobobobo2bo4bobo5b
2o10bobo9bo$8bo9bobobobo8b2o17bobo9bob2o$7bobo8bobob2o29bo10bo$19bo47b
o$6bo2bo58bo$b2obobobo23b2o32bobo$ob2o3bo15b2o7bo33b2o$o4bo17b2o5bobo
$b4o25b2o11b2o$2bo40bo$2bo2bo38b3o$2b3o41bo$b2o43bob2o$bo42b2obobo$ob
o41bo2bo18b2o$b2o17b2o24b2o7b2o9bo$21bo33b2o10bo$18b3o45b2o$5b2o11bo44b
2o$4bo2bo55b2ob2o$5bobo58bo$6bo56b2o3bo$62bo2b4o$61bobobo$43bo18bo2bo
b2o$4bo38b3o19bobo$3bobo40bo17b2o2bo$3b2o2bobo15b2ob2o15b2o14bobo2bob
o$b2o2bo2b2o14bobobo32b2o2bobo$2bobo12b2o7bobo37bo$2bob6o6bo2bo8bob2o
$3bo5bo6bobo3bo2bo2bobo$4b3o10bo5bobob2obo13b3o20bo$6bo17b2o3bo14bo20b
3o$12b2o12b3o16bo18bo$13bo12bo37b2o$10b3o22bo$10bo24b3o$38bo$37bo$37b
2o$35b2o2bo$34bo2b3o$35bo23bo8bo$36b4o6b2o3b2o5bobo5bobo$38bo7b2o3b2o
6bo7b2o$40bo$39b2o!

the latter reduction also reduces guntrue_579, guntrue_582

guntrue_642 (4450 -> 4361)

Code: Select all

x = 89, y = 49, rule = B3/S23
30b2obob2o15b2o5bo$29bo2b2obo2bob2obo7bo3bo2bobob2o$28bobo4bob2obob2o
7b2o2bo2bobob2o$29bob5o19bo2bobo$14bo16bo4bob2o16b3ob6o$14b3o13bo3bob
ob2o16b2o5bo2bo$17bo11bo3bobo23bobo3b2o$16b2o11b2o3bo26bo3$68bo$67bob
o$41b2o24bobo$41b2o25bo$56b2o$55bo2bo$56b3o2bo25b2o$59b3o25bo$58bo26b
obo$44b2o13b3o23b2o$45bo16bo$42b3o16b2o$42bo3$46bo$26b2o16b3o$26bo16b
o$2b2o23b3o13b2o$bobo26bo$bo25b3o$2o25bo2b3o$30bo2bo$31b2o$20bo6b2o$19b
obo5b2o$19bobo24b3o$20bo6b4o12b2o2bo$26bo4bo11bobo$26b5obo22bo3b2o$24b
2o4bobo21bobo3bo10b2o$23bo2bo5b2o19bobo3bo11bo$23b2obobobo2bo15b2obob
o3bo13b3o$26bo2bob3o15b2obo2b4obo13bo$26b2obo3bo19bobo3bobo$28bobob2o
15b2ob2o2bo2bobo$28bobobo11bo5bobo2b2o3bo$29bo2bo12bo4bobo$30b2o11b3o
5bo!

guntrue_681 (4980 -> 4860)

Code: Select all

x = 81, y = 60, rule = B3/S23
28b2o$27bobo21b2o$21b2o4bo23bobo$19bo2bo2b2ob4o21bo4b2o$7b3o9b2obobob
obo2bo17b4ob2o2bo2bo10bo$7b2o13bobobobo20bo2bobobobob2o10bo$5bob2o13b
obob2o24bobobobo13bo$b2o5bo14bo29b2obobo14bobo$ob3o2bo10bo38bo14bob2o
2b2o$o5bo9b3o17b2o24bo10b6obo$b4o10bo11b2o7bo6b2o17b3o15bo$4b2o8bobo10b
2o5bobo7bo7b2o11bo10b4o$4b2o8bobo17b2o8bobo5b2o10bobo9bo$b3o11bo29b2o
17bobo9bob2o$65bo10bo$o78bo$obo77bo$b2o75bobo$78b2o$24b2o$25bo29b2o$22b
3o30bo$22bo33b3o$19b2obo35bo$19bobob2o33bob2o$b2o18bo2bo31b2obobo$2bo
9b2o7b2o33bo2bo18b2o$bo10b2o44b2o7b2o9bo$b2o64b2o10bo$4b2o72b2o$b2ob2o
69b2o$2bo72b2ob2o$o3b2o72bo$4o2bo68b2o3bo$3bobobo66bo2b4o$2obo2bo66bo
bobo$bobo20b2o29bo18bo2bob2o$o2b2o19bo30b3o19bobo$obo2bobo14bobo33bo17b
2o2bo$bobo2b2o14b2o33b2o14bobo2bobo$2bo70b2o2bobo$78bo3$4b2o50b3o20bo
$4bobo49bo20b3o$6bo50bo18bo$6b2o68b2o$47bo$6b2o39b3o$5bo2bo16b2o23bo$
3bo2b2o17b2o22bo$3b2obo42b2o$6bo40b2o2bo$6b2o38bo2b3o$13bob2o30bo23bo
8bo$11b3obobobo28b4o6b2o3b2o5bobo5bobo$10bo4bob2obo29bo7b2o3b2o6bo7b2o
$10b2o3bo4bo31bo$14b2o4b2o29b2o!

EDIT 3: guntrue_702 (2730 -> 2706)

Code: Select all

x = 66, y = 41, rule = B3/S23
6bo7b2o10bob2o4b2obo$6b3o5b2o10b2o2bo2bo2b2o$o8bo14b2o3bo4bo3b2o$3o5b
2o13bo3b2ob4ob2o3bo$3bo20b3obobo2bobob3o$2b2o22bo3bo2bo3bo18bo2b2o$28b
2ob2ob2o20b4obo$18bo12b2o28bo$17b3o34b7ob2o$16b2ob2o32bo6bobo2bo$11b3o
3b3o33b2o2b2obo3b2o$18bo38b2ob2o2$4b2o$4b2o28b2o21b2o$34b2o21b2ob2o$48b
2o6b2obo$21bo27bo$20b3o3b3o20bobo$19b2ob2o26b2o$3b2o4b2o9b3o24bo$3bob
o3b2o10bo23b3o17bo$5bo38bo18bobo$5b3o36b2o18b2o$3b2o$2bo2bob2o3bo17b2o
$3b2o3b4o18bo29b2o$5b2obo5bo9b2o5b3o11bo14bo$5bo2bob5o9b2o6bo2bo8bobo
14b3o$6bobobo19bo3b2o8b2o17bo$7bo4bo17b4o$11b2o21b2o$30b2o2bobo16b2o$
30b2o3bo17b2o2$56b2o$39b2o14bo2bo$40bo9b2obo2b2o$37b3o11bob2obo$37bo11b
obobo2bo$49b2o3b2o!

Posted: **December 12th, 2025, 4:38 pm**

gun_221 reduction (4617 -> 4389) by using the odd-period pi-G:

Code: Select all

x = 77, y = 57, rule = B3/S23
27b2o11bo$27b2o10bobo$39bobo2b2o3bo$38b2ob2o2bo2bobo$42bobo3bobo$38b2o
bo2b4obo$38b2obobo3bo$42bobo3bo15b2o$43bobo3bo14bo$44bo3b2o12bobo$58b
2o2b2o$58b2o2$35b2o39bo$35b2o37b3o$20b2o45b2o4bo$19bo2bo45b2o3b2o$18b
ob2o46b2o$18bo50b2o$17b2o50b2o$24bo7b2o40bobo$24b2o6bo43bo$23bobo7b3o
33bo6bo$35bo10b2o21bo2bo2bo$11b2o32bobo$11b2o32bo$44b2o24b2o$70b2o2$2o
$bo23b2o$bobo21bo32b2o$2b2o19bobo32b2o$23b2o10bo$35b3o7bobo$38bo6b2o$
37b2o7bo$52b2o$52bo$49b2obo$48bo2bo$49b2o$34b2o$34b2o2$11b2o$7b2o2b2o
$6bobo12b2o3bo$6bo14bo3bobo$5b2o15bo3bobo$23bo3bobob2o$21bob4o2bob2o$
20bobo3bobo$20bobo2bo2b2ob2o$21bo3b2o2bobo$29bobo10b2o$30bo11b2o!

EDIT: Same for gun_209 (4212 -> 3996)

Code: Select all

x = 74, y = 54, rule = B3/S23
24b2o11bo$24b2o10bobo$36bobo2b2o3bo$35b2ob2o2bo2bobo$39bobo3bobo$35b2o
bo2b4obo$35b2obobo3bo$39bobo3bo15b2o$40bobo3bo14bo$41bo3b2o12bobo$55b
2o2b2o$55b2o2$32b2o39bo$32b2o37b3o$17b2o45b2o4bo$16bo2bo45b2o3b2o$15b
ob2o5bo40b2o$15bo8b2o40b2o$14b2o7bobo40b2o$29b2o40bobo$11b2o16bo43bo$
11b2o17b3o33bo6bo$32bo10b2o21bo2bo2bo$42bobo$42bo$2o39b2o24b2o$bo23b2o
40b2o$bobo21bo$2b2o19bobo$23b2o10bo$35b3o17b2o$38bo16b2o$37b2o$42bobo
7b2o$42b2o8bo$43bo5b2obo$48bo2bo$49b2o$34b2o$34b2o2$11b2o$7b2o2b2o$6b
obo12b2o3bo$6bo14bo3bobo$5b2o15bo3bobo$23bo3bobob2o$21bob4o2bob2o$20b
obo3bobo$20bobo2bo2b2ob2o$21bo3b2o2bobo$29bobo10b2o$30bo11b2o!

Posted: **December 12th, 2025, 5:14 pm**

ElijahKen wrote: December 11th, 2025, 9:32 am=

Here is a p3 eater for the other side (minimal population) (2242 -> 2204):
Code: Select all

Is there a way to p3 weld these two sets of two eaters where the white-red one is p3 and the green is stable?

Code: Select all

x = 12, y = 13, rule = LifeHistory
4.A$2.3A$.A$.2A$3B$B$2B$2B$2B8.CD$3B7.C$4B3.BC.C$5B2.B2C$8B!

Code: Select all

x = 14, y = 12, rule = LifeHistory
2A$.A$.A.A$2.2A4$12.CD$12.C$B5.B2.BC.C$2B3.3B.B2C$3B.6B!

First is asking to see if guntrue_426 and multiples can be reduced, partially since their syringe catalysts aren't optimal. Second is for guntrue_501 and multiples

Code: Select all

x = 67, y = 51, rule = LifeHistory
23.2E.ED2C3.2D10.2A5.2A$19.2D.C.DCE.CD.E.CE.C7.A3.A2.A2.A$20.DC.E2.D.
EDCEDC.2C7.2A2.A2.A.2A$20.D.E.2CECE19.A2.A.A$21.D.DE2D2.E.2E16.3A.A$23.
E3.E.E.2E16.2A4.A$7.A9.A4.E3.E.E23.A$7.3A5.3A3.D2C.D.E25.A.3A$10.A3.A
6.2D3.D27.4A$9.2A3.2A41.A3$34.2A$34.2A$2A47.2A$.A46.A2.A$.A.A45.2A.A$
2.2A48.A$52.2A4.2A$5.A31.2A19.2A$4.A.A31.A$5.2A28.3A$23.2A10.A30.A$23.
A.A38.3A$25.A16.2A19.A$25.2A16.A19.2A$9.2A32.A.A$8.A.A22.A10.2A$8.2A21.
3A$30.A$11.2A3.2A12.2A$11.A4.A47.2A$12.3A.A47.2A$14.A.A.2A$17.A2.A$18.
2A$14.2A$14.2A41.2A$33.3A21.2A$14.4A12.2A2.A18.2A$13.A4.A11.A.A21.A$13.
5A.A22.A3.2A3.3A$11.2A4.A.A21.A.A3.A3.A$10.A2.A5.2A19.A.A3.A$10.2A.A.
A.A2.A15.2A.A.A3.A$13.A2.A.3A15.2A.A2.4A.A$13.2A.A3.A19.A.A3.A.A$15.A
.A.2A15.2A.2A.DCD.A.A$15.A.A.A11.A5.A.A2.CED.DA$16.A2.A12.A4.A.A$17.2A
11.3A5.A!

EDIT: guntrue_906 reduced (5734 -> 5640)

Code: Select all

x = 94, y = 60, rule = B3/S23
12b2o6bo15b2obob2o$11bo2bo3b2obo7bob2obo2bob2o2bo$11b2ob5ob2o7b2obob2o
bo4bobo$12bobo2bo19b5obo32bo11bo$11bo2bo2bo15b2obo4bo34b3o7b3o$13bo2b
o16b2obobo3bo20bo15bo5bo6bo$10b2o25bobo3bo19b3o12b2o5b2o3b3o$8bo3bo25b
o3b2o4bo17bo22bo$7bo3bo17b3obo14b3o14b2o22b2o$8bobo17bob4o17bo6bo$27b
o22b2o6b3o$28b2o24b2o5bo$54b2o4b2o$92b2o$15b2o75b2o$14bo2bo$13bob2o$13b
o$12b2o73b2o$27b2o58b2o$27bo54b2o$28b3o51bo$30bo10b2o40b3o$40bobo42bo
$40bo$39b2o10b2o$52bo$34b2o13b3o17b2o$34bo14bo19b2o$32bobo$32b2o10bo$
44b3o$47bo$46b2o$11b2o48b2o$11b2o48bo$58b2obo$57bo2bo$58b2o$43b2o$43b
2o$12b2o$12b2o2$30b2o3bo$3b2o25bo3bobo$3bobo25bo3bobo$4bo27bo3bobob2o
$23b2o5bob4o2bob2o$23bo5bobo3bobo$24b3o2bobo2bo2b2ob2o$7b2o17bo3bo3b2o
2bobo$7b2o29bobo10b2o$2b2o35bo11b2o$bobo$bo$2o13b2o$15bo10bo$8b2o6b3o
8bo$8b2o8bo6b3o!

guntrue_981 reduced via a skipped row reduction to the H-to-G converter (4840 -> 4785)

Code: Select all

x = 87, y = 55, rule = B3/S23
9b2o11bo$9b2o10bobo$21bobo2b2o3bo$20b2ob2o2bo2bobo$24bobo3bobo12b2o$20b
2obo2b4obo13bo$20b2obobo3bo13bobo$24bobo3bo12b2o$25bobo3bo$26bo3b2o2$
51b2o$52bo14b2o$13bo3b2o33bobo12b2o$13b2o2b2o9b2o23b2o$2b2o8bobo13bob
o34b4o$bo2bo23bo4b2o29bo3bo$ob2o29bobo29bo$o32bob2o26bobo$b3o28bob2o27b
2o$3bo4bo5b2o16b3o32b2o$7b2o5bo53bo$6bobo6b3o24b2o24bobo$5b3o9bo11b2o
11b2o25b2o4bo$5b3o22bo42b3o$b2o24b3o42bo$b2o2bob2o18bo44b2o$5bob2o13b
2o40bo$22bo22bo19b2o14b2o$20bobo22bobo16b2o15bobo$20b2o10bo12b2o36bo$
32b3o48bob2o$35bo44b2obobo$34b2o44b2obobo$49b2o23b2o7bob2o$49bo14b2o7b
o2bo3b4o2bo$2o44b2obo13bobo8b2o4bo3b2o$2o25b2o16bo2bo7bo6bo18b2o$26bo
2bo16b2o8b3o3b2o19bo$25b2o2bo29bo21bo$26b2o2bo27b2o21b2o$3b2o22b4o$3b
2o44b2o$48bobo$48bo$19b2o3bo20b2obo7bo$19bo3bobo20bobob2o2b3o$20bo3bo
bob2o16bobob2o2b2o$12b2o7bo4bob2o15b2obo7bo$12bo6bob5o19bo2b4o3bo10b2o
$13b3o2bobo4bob2obob2o12b2o3bo3bo10bobo$15bo3bo2b2obo2bob2obo14b2o18b
o$20b2obob2o12b2o7bo13bo5b2o$39b2o9bo12bo$49b2o10b3o!

this also reduces guntrue_327 (4158 -> 4104)

Code: Select all

x = 76, y = 54, rule = B3/S23
39b2o$20b2obob2o12b2o$15bo3bo2b2obo2bob2obo$13b3o2bobo4bob2obob2o$12b
o6bob5o$12b2o7bo4bob2o36bo2b2o$20bo3bobob2o36b4obo$19bo3bobo45bo$19b2o
3bo39b7ob2o$63bo6bobo2bo$63b2o2b2obo3b2o$3b2o62b2ob2o$3b2o27b4o$21b2o
8bo3bo$20bobo8bo4bo30b2o$16bo5bo9b3o11b2o19b2ob2o$2o11b2o2bo27bo2bo9b
2o6b2obo$2o10bo5bo27b2obo9bo$11b2ob2o33bo9bobo$12b4o3bo29b2o9b2o$13bo
4bo15b2o$15b3o17bo39bo$15bo16b3o38bobo$20b2o10bo41b2o$20bobo$22bo$22b
2o46b2o$b2o24bo42bo$b2o24b3o41b3o$30bo16b2obo22bo$17bo11b2o11b3o2b2o2b
o17bo$15b3o25b2o6bo16bobo$14bo29b2o4b2o16bobo$3bo10b2o33bo17b2ob2o$b3o
42b2o15b2o$o62bobo$ob2o61bo$bo2bo59bo3bo$2b2o61b4o$53b2o$52bobo12b2o$
13b2o2bo23bo10bo14b2o$15b4o20b2o10b2o$15b2o2bo19b3o$19b2o5bo3b2o$18b2o
5bobo3bo$19b2o3bobo3bo12b2o$20b2obobo3bo13bobo$20b2obo2b4obo13bo$24bo
bo3bobo12b2o$20b2ob2o2bo2bobo$21bobo2b2o3bo$9b2o10bobo$9b2o11bo!

EDIT 2: guntrue_872 reduced by removing a signal from the p436 gun (3618 -> 3456)

Code: Select all

x = 64, y = 54, rule = B3/S23
39b2o$20b2obob2o12b2o$15bo3bo2b2obo2bob2obo$13b3o2bobo4bob2obob2o$12b
o6bob5o$12b2o7bo4bob2o$20bo3bobob2o$19bo3bobo$19b2o3bo3$3b2o$3b2o$31b
2o$31b2o$46b2o$2o43bo2bo$2o44b2obo$49bo$49b2o$34b2o$35bo$32b3o$20b2o10b
o$20bobo$22bo24b2o$22b2o22b2o$b2o24bo20bo$b2o24b3o$30bo$17bo11b2o11b2o
$15b3o24b2o$14bo$3bo10b2o$b3o$o61b2o$ob2o58b2o$bo2bo$2b2o$17b2o$17b2o
2$57b2o$57b2o$26bo3b2o$25bobo3bo$24bobo3bo$20b2obobo3bo$20b2obo2b4obo
$24bobo3bobo7b2o$20b2ob2o2bo2bobo7b2o$21bobo2b2o3bo26bo$9b2o10bobo35b
o$9b2o11bo34b3o!

EDIT 3:

Entity Valkyrie 2 wrote: December 9th, 2025, 7:01 am p8064 solifuge gun (of a 27-engine variant):
Code: Select all

Say, weirdly enough the gun allows for a smaller guntrue_8064 than the one currently in Catagolue (3025 -> 2772)

Code: Select all

x = 62, y = 41, rule = B3/S23
30bo4bo$29bobo2bo$27b3ob2obobo$b2ob2o5b2ob2o2b2o6bo4bo2b2o$2bobo5bobo
bobo2bo6b4o2b4o$2bo7bo3bobobo8bo2bobo2bo$2ob5ob6ob2ob3o5b4o2b4o$bobo2b
2o9bobo2bo4b2o2bo4bo$bo2bo2bo4b3o2b2obobo3bobob2ob3o$2b2o8bob2o3bobo6b
o2bobo$14bo2bobo7bo4bo$6b2o6b2obobo$5bo2bo6bob2o14bo$6b2o7bo16bo$13bo
bo17bo15b2o$13b2o34b2o7b2o$2b2o54bo$bo2bo55bo$2b2o12bo34bo7b2o$16b3o16b
2o14bo6bo$19bo16bo14bo6b3o$18b2o16b2o23bo$44bo15b2o$43b3o$32b2o8b2obo
$5bo26bo8b2o$4bobo26b3o6b2obo6bo$4bobo28bo7b3o6bo$5bo22b2o3b2o9bo11b2o
$9b2o10b2o5bobo2bo17b2o3b2o$9bobo9b2o7bo4bo16bo$11bo18b2o2b2o7b2o7bo$
11b2o30b2o$17bo$16bobob2o$16bobobobo$13b2obobobobo2bo$13bo2bo2b2ob4o$
7bo7b2o4bo$8bo12bobo$6b3o13b2o!

Posted: **December 13th, 2025, 10:15 am**

WhiteHawk wrote: December 12th, 2025, 5:14 pm Is there a way to p3 weld these two sets of two eaters where the white-red one is p3 and the green is stable?
Code: Select all
x = 12, y = 13, rule = LifeHistory
4.A$2.3A$.A$.2A$3B$B$2B$2B$2B8.CD$3B7.C$4B3.BC.C$5B2.B2C$8B!
Code: Select all
x = 14, y = 12, rule = LifeHistory
2A$.A$.A.A$2.2A4$12.CD$12.C$B5.B2.BC.C$2B3.3B.B2C$3B.6B!
First is asking to see if guntrue_426 and multiples can be reduced, partially since their syringe catalysts aren't optimal. Second is for guntrue_501 and multiples

For the first one, no, at least not without making the second one periodic as well.
For the second one, thanks for the context!
Here is a minpop weld:

Code: Select all

x = 17, y = 19, rule = B3/S23
13b2o$13b2o2$8b2ob4o$5b2o2bobo3bo$5bo3bo4bo$6b3obo3bobo$8bobo4b2o$11b
2o$2o7bobo$o5b2o3bo$b3obo3b2o$2bo$2bo2bo$2b3o$b2o$bo$obo$b2o!

Currently searching for the other p3 eater.

EDIT: Some low-period reduction targets I compiled (list may be outdated):
gun_164 (Edit 2: Done previously), gun_170, gun_178 (Edit 2: Tried and failed), (Edit 3: More like this list is very outdated; removed some entries), gun_229, gun_233.

Posted: **December 13th, 2025, 12:27 pm**

ElijahKen wrote: December 13th, 2025, 10:15 am For the first one, no, at least not without making the second one periodic as well.

I don't think it's a problem if the second eater is periodic, as long as it reduces the bounding box

There probably are many more 3n guns where welded p3 eaters could help remove a row, these were just some starters

Also, guntrue_501 reduced (4582 -> 4524)

Code: Select all

x = 78, y = 58, rule = B3/S23
66b2o$66b2o2$76b2o$76bo$74bobo$74b2o$58b2o$48b2o8b2o$49bo$49bobo22b2o
$27b2o16b2o3b2o22bobo$13b2o12bo17bo30bo$13b2o10bobo18bo29b2o$25b2o18b
2o$8b2ob4o$5b2o2bobo3bo56b2o$5bo3bo4bo57b2o$6b3obo3bobo$8bobo4b2o$11b
2o29b2o$2o7bobo30b2o$o5b2o3bo$b3obo3b2o$2bo$2bo2bo$2b3o$b2o$bo$obo$b2o
50b2o$54bo$51b3o$5b2o44bo23b2o$4bo2bo67b2o$5bobo54b2o$6bo50b2o2bo2bo$
54bo2bo4bobo7b2o$bo51bobobo5bo8bobob2o$bobo50bo2bob2o9bobob2obo$bo3bo
51bo2bo9b2o$5b2o51bo4bo$2b2ob2o52b5o$5b2o18b2o$3bo3b2o17b2o9bo23bo$5b
o19bo9b3o22bobo$6bo3bo23bo26bo$8b2obo23bo$11bo20bo2bo$11b2o19bo$22b3o
4b3o2bo$22bo5b4obo$22bo$27bo2bobo$17b2o11bo$18bo7b3o32bo$15b3o44bo$15b
o44b3o!

Posted: **December 13th, 2025, 3:36 pm**

WhiteHawk wrote: December 13th, 2025, 12:27 pm
ElijahKen wrote: December 13th, 2025, 10:15 am For the first one, no, at least not without making the second one periodic as well.
I don't think it's a problem if the second eater is periodic, as long as it reduces the bounding box

There probably are many more 3n guns where welded p3 eaters could help remove a row, these were just some starters

I agree that it is fine, but I was unable to find one. It is just harder to search for. (Edit: And I'm pretty sure it's impossible in this case.)
Finding/searching for p3 eater welds is probably one of my favorite things to do.

WhiteHawk wrote: December 13th, 2025, 12:27 pm Also, guntrue_501 reduced (4582 -> 4524)

Code: Select all

x = 78, y = 58, rule = B3/S23
66b2o$66b2o2$76b2o$76bo$74bobo$74b2o$58b2o$48b2o8b2o$49bo$49bobo22b2o
$27b2o16b2o3b2o22bobo$13b2o12bo17bo30bo$13b2o10bobo18bo29b2o$25b2o18b
2o$8b2ob4o$5b2o2bobo3bo56b2o$5bo3bo4bo57b2o$6b3obo3bobo$8bobo4b2o$11b
2o29b2o$2o7bobo30b2o$o5b2o3bo$b3obo3b2o$2bo$2bo2bo$2b3o$b2o$bo$obo$b2o
50b2o$54bo$51b3o$5b2o44bo23b2o$4bo2bo67b2o$5bobo54b2o$6bo50b2o2bo2bo$
54bo2bo4bobo7b2o$bo51bobobo5bo8bobob2o$bobo50bo2bob2o9bobob2obo$bo3bo
51bo2bo9b2o$5b2o51bo4bo$2b2ob2o52b5o$5b2o18b2o$3bo3b2o17b2o9bo23bo$5b
o19bo9b3o22bobo$6bo3bo23bo26bo$8b2obo23bo$11bo20bo2bo$11b2o19bo$22b3o
4b3o2bo$22bo5b4obo$22bo$27bo2bobo$17b2o11bo$18bo7b3o32bo$15b3o44bo$15b
o44b3o!

And here is the other p3 eater "weld" for this gun (newly discovered AFAIK) (4446):

Code: Select all

x = 78, y = 57, rule = B3/S23
66b2o$66b2o2$76b2o$76bo$74bobo$74b2o$58b2o$48b2o8b2o$49bo$49bobo22b2o$
27b2o16b2o3b2o22bobo$13b2o12bo17bo30bo$13b2o10bobo18bo29b2o$25b2o18b2o
$8b2ob4o$5b2o2bobo3bo56b2o$5bo3bo4bo57b2o$6b3obo3bobo$8bobo4b2o$9bob2o
29b2o$2o6b2obo30b2o$o6bobobo$b3obobob2o$4b2o$4b2o$b3o2$o$obo$b2o50b2o$
54bo$51b3o$5b2o44bo23b2o$4bo2bo67b2o$5bobo54b2o$6bo50b2o2bo2bo$54bo2bo
4bobo7b2o$53bobobo5bo8bobo$5bo48bo2bob2o9bobob3o$2o3bo51bo2bo9b2o5bo$o
2b3obo50bo4bo12b2o$b3o4b2o49b5o$4bo2bo$ob2o2bobobo13b2o11bo23bo$2obob
2obo2b2o12b2o8b3o22bobo$3bo2bobo3bobo9bo9bo26bo$3b2o2bo7bo18b2o$14b2o
4b2o11b2o$8bo10b3o10b2o$3b2o3bobo8bo2bo6bo3bo$3bo2bo5b2o5b2obo4b3ob3o$
4b6ob3o6b2o10bo$9bobo2bo12b6o$6b2obobo2bo2b2o8b2obo29bo$6b2obobo2bo3bo
7b2o33bo$10bo5b2o41b3o!

Posted: **December 13th, 2025, 4:01 pm**

ElijahKen wrote: December 13th, 2025, 3:36 pm
I agree that it is fine, but I was unable to find one. It is just harder to search for. (Edit: And I'm pretty sure it's impossible in this case.)
Finding/searching for p3 eater welds is probably one of my favorite things to do.
WhiteHawk wrote: December 13th, 2025, 12:27 pm Also, guntrue_501 reduced (4582 -> 4524)
Code: Select all
And here is the other p3 eater "weld" for this gun (newly discovered AFAIK) (4446):
Code: Select all

Wow! That is a really great reduction (too bad it doesn't reduce guntrue_1002 too, though I guess it's better for population)

I bet a lot of guns could use that reduction to the period-3 eater in terms of bounding box. Wish that population reduction fix would also be admitted to catagolue's algorithm.

EDIT: Proof of concept guntrue_477 (4180 -> 4104). I guess I challenge you to also find a p3 weld for that first bumper

Code: Select all

x = 76, y = 54, rule = B3/S23
64b2o$64b2o2$74b2o$74bo$72bobo$72b2o$56b2o$46b2o8b2o$47bo$47bobo22b2o
$25b2o16b2o3b2o22bobo$9b2o14bo17bo30bo$9b2o12bobo18bo29b2o$23b2o18b2o
$9b4o$9bo3bo56b2o$12bo57b2o$12bobo$13b2o$9b2o29b2o$9bo30b2o$7bobo$7b2o
$2o$bo$bobo$2b2o3$6b2o43b2o$5bo2bo43bo$6bobo40b3o$7bo41bo23b2o$73b2o$
60b2o$6bo48b2o2bo2bo$b2o3bo45bo2bo4bobo7b2o$bo2b3obo42bobobo5bo8bobob
2o$2b3o4b2o41bo2bob2o9bobob2obo$5bo2bo46bo2bo9b2o$bob2o2bobobo13b2o11b
o17bo4bo$b2obob2obo2b2o12b2o8b3o18b5o$4bo2bobo3bobo9bo9bo$4b2o2bo7bo18b
2o22bo$15b2o4b2o11b2o22bobo$9bo10b3o10b2o24bo$4b2o3bobo8bo2bo6bo3bo$4b
o2bo5b2o5b2obo4b3ob3o$5b6ob3o6b2o10bo$10bobo2bo12b6o$7b2obobo2bo2b2o8b
2obo23bo$7b2obobo2bo3bo7b2o27bo$11bo5b2o35b3o!

EDIT 2:
guntrue_1035 also reduced (3850 -> 3780)

Code: Select all

x = 70, y = 54, rule = B3/S23
8b2o5b2o15b2obob2o$7bo2bobobo2bo7bob2obo2bob2o2bo$7b2obobo3b2o7b2obob
2obo4bobo$8bobo22b5obo$8bob4o15b2obo4bo$6b3o20b2obobo3bo$7b2o24bobo3b
o15b2o$6bobo25bo3b2o15bo$3b3obo45bobo$49b2o2b2o$49b2o2$26b2o$26b2o$11b
2o48b2o$10bo2bo47b2o$9bob2o$9bo55b2o$8b2o55b2o$3b2o18b2o$4bo18bo$2bo21b
3o$2b5o14b3o2bo10b2o$7bo13bo2bo11bobo$4b3o12bobo2b2o10bo$3bo15b2o14b2o
32bo$3b4o60bobo$b2o3bo3b2o47b2o7b2o$o2b3o4b2o48bo$2obo53b3o$3bo45b2o6b
o$3b2o22bo21b2o$27b3o$30bo$11b2o16b2o$12bo$9b3o$9bo22bobo$32b2o$33bo2$
39b2o$32b2o5bobo$32b2o7bo$41b2o2$28bo$27bobob2o$27bobobobo$24b2obobob
obo2bo$24bo2bo2b2ob4o$26b2o4bo$32bobo$33b2o!

guntrue_1062 reduced (3913 -> 3870) (EDIT 12/14: reduced even further to 3822)

Code: Select all

x = 91, y = 42, rule = B3/S23
23b2o2bo$22bob4o$22bo$20b2ob7o23bo$18bo2bobo6bo21bobo$18b2o3bob2o2b2o
19b3obo$22b2ob2o22bo4bob2o$49bobobobobo$44b2o4b2obobo$45bo8bobo9b2o$23b
o21bobo7bo10b2o$22bobo9b2o10b2o$22bobo9bo$7b2o14bo8bobo14bo$7bobo22b2o
15bobo7bo$10bo2b2o34b2o8b3o22bo$8b2obo2bo41b3o3b2o6bob2o8b3o$7bobob2o
21bo20b3obobob2o5b2obo7bo$8bo25b3o18bo5bo3bo15b2o$b2o34bo22b5o$2bo33b
2o23bobo$2bobo9b2o6b2o28b2o8bo4b2o$3b2o9b2o7bo17bo9b3o2bobo7bo2bo9bo$
20b3o19bo9b2o2bo2bo6bobo8bo2bob4o$20bo14b2o2bo2b2o12bobo8bo10bo6bo$34b
3obobob3o12bo16bo3bo5bo$11b2o4b2o16b2o2bo2b2o29b2o8bo$11bobo3bobo16bo
5bo3b2o5b2o18b2ob2o2b2o$12bo6bo17b5o4bobo5bo7bob2o8bo$19b2o17b3o7bo2b
3o8b2obo8b3o$39bo8bobo22b5o$2o45b2ob2o15b2ob3o4b2o10b2o$o2bo63b2ob2o17b
2o$b3o62b2ob3o$66b3o$b3o3b2o27b2ob2o26bobo10bo$obo4b2o23b2o3bob2o2b2o
23b2o9bobo$o3bo27bo2bobo6bo35bobob2o$b3obo28b2ob7o34bobobobobo$3bobo13b
o16bo40bobobo4bo$4bo15bo15bob4o35bobobob3o$18b3o16b2o2bo36bo3b2o!

guntrue_1077 reduced below 6000 (6438 -> 5985) - also worked on guntrue_1101

Code: Select all

x = 95, y = 63, rule = B3/S23
44b2o$43bobo$37b2o4bo$35bo2bo2b2ob4o$35b2obobobobo2bo$38bobobobo17bo$
38bobob2o18b3o11b2o$39bo25bo10b2o$34bo29b2o$32b3o17b2o$31bo11b2o7bo$30b
obo10b2o5bobo$30bobo17b2o21bo18b2o$31bo40bobo17b2o$71bo3bo$71bo3bo$70b
3ob3o$58bo12bo3bo$15b2o41b3o10bo3bo$15b2o23b2o19bo10bobo$41bo18b2o5b2o
4bo$38b3o$38bo24bo5bo7b2o12bo$35b2obo23b2o5bo7b2o7b2o2bobo$35bobob2o21b
o23bobo2bobo$17b2o18bo2bo22b2o3bo20b2o2bo$18bo9b2o7b2o25b3o23bobo$17b
o10b2o57bo2bob2o$17b2o67bobobo$20b2o48b2o15bo2b4o$17b2ob2o19bo29bo16b
2o3bo$18bo20b3o26b3o20bo$16bo3b2o16bo29bo19b2ob2o$16b4o2bo15b2o48b2o$
19bobobo67b2o$16b2obo2bo57b2o10bo$17bobo23b3o25b2o7b2o9bo$16bo2b2o20b
o3b2o22bo2bo18b2o$16bobo2bobo23bo21b2obobo$17bobo2b2o7b2o7bo5b2o23bob
2o$18bo12b2o7bo5bo24bo$69b3o$36bo4b2o5b2o18bo$17bo17bobo10bo19b2o23b2o
$17b3o14bo3bo10b3o41b2o$11bo8bo13bo3bo12bo$11b3o5b2o12b3ob3o$14bo19bo
3bo$13b2o19bo3bo$35bobo40bo$4b2o30bo21b2o17bobo$3bobo51bobo5b2o10bobo
$3bo53bo7b2o11bo$2obo7bo44b2o17b3o$bobob2o2b3o13bo18b2o29bo$bobob2o2b
2o13bobo5b2o10bo25bo$2obo7bo13bo6b2o11b3o18b2obobo$o2b4o3bo10b2o24bo17b
obobobo$b2o3bo3bo10bobo38bo2bobobobob2o$3b2o18bo38b4ob2o2bo2bo$3bo13b
o5b2o41bo4b2o$5bo12bo45bobo$4b2o10b3o45b2o!

EDIT 3:
guntrue_1029 reduced (4473 -> 4270), though it might be reducible with a weld for the tremi-snark

Code: Select all

x = 70, y = 61, rule = B3/S23
20bo11bo$20b3o7b3o$23bo5bo$22b2o5b2o15bo$44b3o$43bo$43b2o3$35bo6b2o16b
o2b2o$33b2ob2o4b2o16b4obo$18b2o16b2o27bo$17bobo12bo3bobo19b7ob2o$17bo
39bo6bobo2bo$16b2o15bo23b2o2b2obo3b2o$34b3o24b2ob2o$35b2o$30b2o21b2o$
49b2obobo6b2o$44b2o2bo2b2o8b2ob2o$9bo19bo2bo11bobo2bo3bo6b2obo$9b3o17b
o17b2ob2obo$12bo17bo17bobo2bobo$11b2o14b3o10bo4bo2bo2bo2b2o$27bo13b2o
bobob3o$40b2o3bobo21bo$3b2o41bo2b2o16bobo$3bo43b2ob3o15b2o$2obo49bo$o
2b3o4b2o35b2ob3o$b2o3bo3b2o35b2obo13b2o$3b4o57bo$3bo15b2o18b2o24b3o$4b
3o12bobo8b2o7b2o26bo$7bo13bo9bo$2b5o14b2o8bobo$2bo29b2o$4bo$3b2o24bo$
27b3o24b2o$26bo26bobo$26b2o25bo$52b2o$51bo$50b4o$48b2o4bo$37bo8bobob3o
2bo$36bobo5b3o6b2o$16b2o18bobo4bo4b2ob2o$15bobo5b2o12bo6b4o4bo$15bo7b
2o9b3o11b4o$14b2o18bo11bo2bo$46b2o$28bo$24b2obobo$23bobobobo$20bo2bob
obobob2o$20b4ob2o2bo2bo$24bo4b2o$22bobo$22b2o!

guntrue_1119 reduced below 7000 (7474 -> 6976)

Code: Select all

x = 109, y = 63, rule = B3/S23
44b2o$43bobo17b2o11bo$37b2o4bo19b2o10bobo$35bo2bo2b2ob4o27bobo2b2o3bo
$35b2obobobobo2bo26b2ob2o2bo2bobo$38bobobobo33bobo3bobo$38bobob2o30b2o
bo2b4obo$39bo34b2obobo3bo$34bo43bobo3bo15b2o$32b3o17b2o25bobo3bo14bo$
31bo11b2o7bo27bo3b2o12bobo$30bobo10b2o5bobo41b2o2b2o$30bobo17b2o42b2o
$31bo$71b2o$71b2o$52b2o2b2o$52bo2bo2bo$15b2o36b2ob2o$15b2o23b2o12bobo
50b2o$41bo12bobo50bo$38b3o14bo12b2o35bobo$38bo29bo36b2o$35b2obo30b3o$
35bobob2o30bo10b2o$17b2o18bo2bo40bobo$18bo9b2o7b2o42bo$17bo10b2o50b2o
22b2o$17b2o85bo$20b2o66b2o15b3o$17b2ob2o65bobo17bo$18bo68bo$16bo3b2o64b
2o15b2o$16b4o2bo80bobo$19bobobo81bo$16b2obo2bo18bo4b2o57b2o$17bobo19b
3o3bobo$16bo2b2o17bo8bo$16bobo2bobo14b2o35bo$17bobo2b2o51b3o$18bo51bo
7bo$69b2o6b2o$69bobo$17bo$17b3o$11bo8bo$11b3o5b2o$14bo34bo$13b2o32b3o
37b2o$46bo33b2o5bobo$4b2o41bo32b2o7bo$3bobo40b2o41b2o$3bo41bo2b2o$2ob
o7bo33b3o2bo25bo$bobob2o2b3o13bo23bo25bobob2o$bobob2o2b2o13bobo5b2o3b
2o6b4o26bobobobo$2obo7bo13bo6b2o3b2o7bo25b2obobobobo2bo$o2b4o3bo10b2o
21bo27bo2bo2b2ob4o$b2o3bo3bo10bobo20b2o28b2o4bo$3b2o18bo56bobo$3bo13b
o5b2o56b2o$5bo12bo$4b2o10b3o!

EDIT 4:

ElijahKen wrote: December 13th, 2025, 3:36 pm I agree that it is fine, but I was unable to find one. It is just harder to search for. (Edit: And I'm pretty sure it's impossible in this case.)

Would it be likely to exist if there were more rows available below? (i.e. for period-multiplied guns)

Posted: **December 13th, 2025, 7:07 pm**

WhiteHawk wrote: December 13th, 2025, 4:01 pm Wow! That is a really great reduction (too bad it doesn't reduce guntrue_1002 too, though I guess it's better for population)

I bet a lot of guns could use that reduction to the period-3 eater in terms of bounding box. Wish that population reduction fix would also be admitted to catagolue's algorithm.

EDIT: Proof of concept guntrue_477 (4180 -> 4104). I guess I challenge you to also find a p3 weld for that first bumper
Code: Select all
x = 76, y = 54, rule = B3/S23
64b2o$64b2o2$74b2o$74bo$72bobo$72b2o$56b2o$46b2o8b2o$47bo$47bobo22b2o
$25b2o16b2o3b2o22bobo$9b2o14bo17bo30bo$9b2o12bobo18bo29b2o$23b2o18b2o
$9b4o$9bo3bo56b2o$12bo57b2o$12bobo$13b2o$9b2o29b2o$9bo30b2o$7bobo$7b2o
$2o$bo$bobo$2b2o3$6b2o43b2o$5bo2bo43bo$6bobo40b3o$7bo41bo23b2o$73b2o$
60b2o$6bo48b2o2bo2bo$b2o3bo45bo2bo4bobo7b2o$bo2b3obo42bobobo5bo8bobob
2o$2b3o4b2o41bo2bob2o9bobob2obo$5bo2bo46bo2bo9b2o$bob2o2bobobo13b2o11b
o17bo4bo$b2obob2obo2b2o12b2o8b3o18b5o$4bo2bobo3bobo9bo9bo$4b2o2bo7bo18b
2o22bo$15b2o4b2o11b2o22bobo$9bo10b3o10b2o24bo$4b2o3bobo8bo2bo6bo3bo$4b
o2bo5b2o5b2obo4b3ob3o$5b6ob3o6b2o10bo$10bobo2bo12b6o$7b2obobo2bo2b2o8b
2obo23bo$7b2obobo2bo3bo7b2o27bo$11bo5b2o35b3o!

Thanks! Unfortunately, that weld is impossible.

WhiteHawk wrote: December 13th, 2025, 12:27 pm EDIT 2:
guntrue_1035 also reduced (3850 -> 3780)

Code: Select all

x = 70, y = 54, rule = B3/S23
8b2o5b2o15b2obob2o$7bo2bobobo2bo7bob2obo2bob2o2bo$7b2obobo3b2o7b2obob
2obo4bobo$8bobo22b5obo$8bob4o15b2obo4bo$6b3o20b2obobo3bo$7b2o24bobo3b
o15b2o$6bobo25bo3b2o15bo$3b3obo45bobo$49b2o2b2o$49b2o2$26b2o$26b2o$11b
2o48b2o$10bo2bo47b2o$9bob2o$9bo55b2o$8b2o55b2o$3b2o18b2o$4bo18bo$2bo21b
3o$2b5o14b3o2bo10b2o$7bo13bo2bo11bobo$4b3o12bobo2b2o10bo$3bo15b2o14b2o
32bo$3b4o60bobo$b2o3bo3b2o47b2o7b2o$o2b3o4b2o48bo$2obo53b3o$3bo45b2o6b
o$3b2o22bo21b2o$27b3o$30bo$11b2o16b2o$12bo$9b3o$9bo22bobo$32b2o$33bo2$
39b2o$32b2o5bobo$32b2o7bo$41b2o2$28bo$27bobob2o$27bobobobo$24b2obobob
obo2bo$24bo2bo2b2ob4o$26b2o4bo$32bobo$33b2o!

That gun explodes; were you meaning this?

Code: Select all

x = 70, y = 54, rule = B3/S23
8b2o6bo15b2obob2o$7bo2bo3b2obo7bob2obo2bob2o2bo$7b2ob5ob2o7b2obob2obo
4bobo$8bobo2bo19b5obo$7bo2bo2bo15b2obo4bo$9bo2bo16b2obobo3bo$6b2o25bob
o3bo15b2o$4bo3bo25bo3b2o15bo$3bo3bo45bobo$4bobo42b2o2b2o$49b2o2$26b2o$
26b2o$11b2o48b2o$10bo2bo47b2o$9bob2o$9bo55b2o$8b2o55b2o$3b2o18b2o$4bo
18bo$2bo21b3o$2b5o14b3o2bo10b2o$7bo13bo2bo11bobo$4b3o12bobo2b2o10bo$3b
o15b2o14b2o32bo$3b4o60bobo$b2o3bo3b2o47b2o7b2o$o2b3o4b2o48bo$2obo53b3o
$3bo45b2o6bo$3b2o22bo21b2o$27b3o$30bo$11b2o16b2o$12bo$9b3o$9bo22bobo$
32b2o$33bo2$39b2o$32b2o5bobo$32b2o7bo$41b2o2$28bo$27bobob2o$27bobobobo
$24b2obobobobo2bo$24bo2bo2b2ob4o$26b2o4bo$32bobo$33b2o!

WhiteHawk wrote: December 13th, 2025, 12:27 pm EDIT 3:
guntrue_1029 reduced (4473 -> 4270), though it might be reducible with a weld for the tremi-snark

Code: Select all

x = 70, y = 61, rule = B3/S23
20bo11bo$20b3o7b3o$23bo5bo$22b2o5b2o15bo$44b3o$43bo$43b2o3$35bo6b2o16b
o2b2o$33b2ob2o4b2o16b4obo$18b2o16b2o27bo$17bobo12bo3bobo19b7ob2o$17bo
39bo6bobo2bo$16b2o15bo23b2o2b2obo3b2o$34b3o24b2ob2o$35b2o$30b2o21b2o$
49b2obobo6b2o$44b2o2bo2b2o8b2ob2o$9bo19bo2bo11bobo2bo3bo6b2obo$9b3o17b
o17b2ob2obo$12bo17bo17bobo2bobo$11b2o14b3o10bo4bo2bo2bo2b2o$27bo13b2o
bobob3o$40b2o3bobo21bo$3b2o41bo2b2o16bobo$3bo43b2ob3o15b2o$2obo49bo$o
2b3o4b2o35b2ob3o$b2o3bo3b2o35b2obo13b2o$3b4o57bo$3bo15b2o18b2o24b3o$4b
3o12bobo8b2o7b2o26bo$7bo13bo9bo$2b5o14b2o8bobo$2bo29b2o$4bo$3b2o24bo$
27b3o24b2o$26bo26bobo$26b2o25bo$52b2o$51bo$50b4o$48b2o4bo$37bo8bobob3o
2bo$36bobo5b3o6b2o$16b2o18bobo4bo4b2ob2o$15bobo5b2o12bo6b4o4bo$15bo7b
2o9b3o11b4o$14b2o18bo11bo2bo$46b2o$28bo$24b2obobo$23bobobobo$20bo2bob
obobob2o$20b4ob2o2bo2bo$24bo4b2o$22bobo$22b2o!

It can be (4270 -> 4209):

Code: Select all

x = 69, y = 61, rule = B3/S23
20bo11bo$20b3o7b3o$23bo5bo$22b2o5b2o15bo$44b3o$43bo$43b2o3$42b2o$42b2o
15bo2b2o$18b2o14b3o22b4obo$17bobo14bo2bo26bo$17bo14b2o2b2o19b7ob2o$16b
2o13bo5bo18bo6bobo2bo$34b3o19b2o2b2obo3b2o$31b2o27b2ob2o$31bo2b3o$32bo
2bo13b2o2b2o$32b2o10b2o2bo2bo2bo5b2o$9bo34bobo2bobobo6b2ob2o$9b3o17b2o
16b2ob2ob2o4b2obo$12bo17bo8bo8bo$11b2o14b3o10b2o3bo2bob2ob2o$27bo11b2o
3bobob2obob2o$45bobo$3b2o41bo2b2o17bo$3bo43b2ob3o13bobo$2obo49bo13b2o$
o2b3o4b2o35b2ob3o$b2o3bo3b2o35b2obo$3b4o56b2o$3bo15b2o18b2o22bo$4b3o
12bobo8b2o7b2o23b3o$7bo13bo9bo34bo$2b5o14b2o8bobo$2bo29b2o$4bo$3b2o24b
o$27b3o24b2o$26bo26bobo$26b2o25bo$52b2o$48bo$47bo3b3o$54bo$37bo8bobo2b
2o2bo$36bobo5b3obobo2b2o$16b2o18bobo4bo4b2ob2o$15bobo5b2o12bo6b4o4bo$
15bo7b2o9b3o11b4o$14b2o18bo11bo2bo$46b2o$28bo$24b2obobo$23bobobobo$20b
o2bobobobob2o$20b4ob2o2bo2bo$24bo4b2o$22bobo$22b2o!

Surprisingly, the more welded version has a lower minpop/statorpop than the previous version.

Also guntrue_279 with a p3 eater (4366 -> 4248):

Code: Select all

x = 72, y = 59, rule = B3/S23
42b2o$42bobo$44bo4b2o$40b4ob2o2bo2bo10bo$24b2o14bo2bobobobob2o10bo$23b
obo17bobobobo13bo$17b2o4bo20b2obobo14bobo$15bo2bo2b2ob4o20bo14bob2o2b
2o$15b2obobobobo2bo25bo10b6obo$8bo9bobobobo9b2o17b3o15bo$7bobo8bobob2o
11bo7b2o11bo10b4o$19bo15bobo5b2o10bobo9bo$6bo2bo26b2o17bobo9bob2o$b2ob
obobo23b2o22bo10bo$ob2o3bo15b2o7bo37bo$o4bo17b2o5bobo38bo$b4o25b2o37bo
bo$2bo66b2o$2bo2bo$2b3o41b2o$b2o43bo$bo45b3o$obo45bo2bo$b2o17b2o24bo3b
2o$21bo11bo12b2o$18b3o12b2o34b2o$5b2o11bo13bobo23b2o9bo$4bo2bo50b2o10b
o$5bobo61b2o$6bo59b2o$66b2ob2o$bo67bo$bobo62b2o3bo$bo3bo59bo2b4o$5b2o
57bobobo$2b2ob2o39bo18bo2bob2o$5b2o39b3o19bobo$3bo3b2o40bo17b2o2bo$5bo
42b2o14bobo2bobo$6bo3bo53b2o2bobo$8b2obo8b2o4b2o41bo$11bo7bo2bo3b2o$
11b2o6bobo4b2o$20bo6b2o18b3o20bo$26bo20bo20b3o$15b2o8bobo3b4o13bo18bo$
16bo8bo2bob2o35b2o$13b3o8b2o4b2o6bo$13bo16b2o6b3o$29b2o10bo$40bo$40b2o
$38b2o2bo$37bo2b3o$38bo23bo8bo$39b4o6b2o3b2o5bobo5bobo$41bo7b2o3b2o6bo
7b2o$43bo$42b2o!

EDIT: Replaced above with lower population version. Note that the lower population snark-syringe weld is the same displacement as the compact eater weld, but with fewer cells.

Posted: **December 13th, 2025, 7:15 pm**

ElijahKen wrote: December 13th, 2025, 7:07 pm That gun explodes; were you meaning this?
Code: Select all

Yes, thanks for fixing it!

ElijahKen wrote: December 13th, 2025, 7:07 pm It can be (4270 -> 4209):
Code: Select all
Surprisingly, the more welded version has a lower minpop/statorpop than the previous version.

guntrue_1116 (EDIT: Weirdly unrelated to the reductions of 279n guns in either this post or Elijah Ken's) can be reduced in this manner too (4071 -> 4012)

Code: Select all

x = 68, y = 59, rule = B3/S23
37bo$37bo6bo$37bo4b3o$41bo$14b2o25b2o$14bo$11b2obo$12bob2o24b2o$11bo28b
obo15bo2b2o$11b5o17b3o6bo15b4obo$16bo16bo2bo4bo21bo$11b2ob2o15b2o2b2o
5b3o11b7ob2o$11b2obo15bo5bo7bo10bo6bobo2bo$16bo16b3o19b2o2b2obo3b2o$15b
2o13b2o27b2ob2o$30bo2b3o$31bo2bo13b2o2b2o$31b2o10b2o2bo2bo2bo5b2o$43b
obo2bobobo6b2ob2o$46b2ob2ob2o4b2obo$38bo8bo$39b2o3bo2bob2ob2o$38b2o3b
obob2obob2o$44bobo$45bo2b2o17bo$46b2ob3o13bobo$2o5b2o43bo13b2o$bo5b2o
37b2ob3o$bobo42b2obo$2b2o58b2o$6b2o30b2o22bo$5bobo21b2o7b2o23b3o$6bo23b
o34bo$30bobo$31b2o2$28bo$3b5o18b3o$b3obob3o15bo$o4bo4bo14b2o$ob2o2bob
2obo$bo2b2o3bobo35bo$2b2o2bo2bobob2o32bo$4bo4bobob2o$4b4ob2o25bo8bo3b
o$8bo26bobo5b3obob3o$6bobo6b2o18bobo4bo4b2o3bo$6b2o6bobo5b2o12bo4bobo
b2o2b2obo$14bo7b2o9b3o5bob2o2b2o2bo$13b2o18bo4b2obobob2o2b2o$38b2obob
obo2bo$27bo14b2ob4o$23b2obobo15bo$22bobobobo15bobo$19bo2bobobobob2o13b
2o$19b4ob2o2bo2bo$23bo4b2o$21bobo$21b2o!

Also, guntrue_1199 reduced by over 1000 cells (6716 -> 5500)

Code: Select all

x = 100, y = 54, rule = B3/S23
39b2o42b2o$20b2obob2o12b2o41bo2bo12b2o$15bo3bo2b2obo2bob2obo49b2o13bo
$13b3o2bobo4bob2obob2o36b2o24bobo$12bo6bob5o40b2o3bo24b2o$12b2o7bo4bo
b2o33bo2bo2bo21bo$20bo3bobob2o33b3o2b3o19bobo$19bo3bobo40b2o23bo$19b2o
3bo40bo2b3o25b2o$64bob2o2bo25bobo$64bo3b2o28bo$3b2o57b2ob2o31b2o$3b2o
23b2o33bobo$26b2ob2o32bo2bo$26bo2bo34b2o24b2o$26bo2bo16b2o37b2o4bo$2o
25b2o16bo2bo36b2o3bo$2o44b2obo39bo$49bo35b5obo$49b2o25bo8bo4bobo$34b2o
39bobo9bo2bobo$35bo39bobo8b2o3bo$32b3o41bo$20b2o10bo13bo33b2o$20bobo22b
2o17b2o14bobo$22bo22bobo15bobo16bo$5bobobo12b2o41bo16b2o$b2o2b3o2bo16b
o$b2o3bo20b3o$6bo23bo$6bo4bo5bo11b2o11b2o25bo$6bo8b3o24b2o24bobo$7b3o
4bo53bobo$3bo10b2o16b2o33b2ob2o$b3o28bob2o27b2o$o34bo27bobo$ob2o29bob
o29bo$bo2bo8bo14bobo2b2o29bo3bo$2b2o10bo13b2o35b4o$12b3o2b2o10bo23b2o
$17b2o33bobo12b2o$52bo14b2o$51b2o2$26bo3b2o$25bobo3bo$24bobo3bo12b2o$
20b2obobo3bo13bobo$20b2obo2b4obo13bo$24bobo3bobo12b2o$20b2ob2o2bo2bob
o$21bobo2b2o3bo65bo$9b2o10bobo74bo$9b2o11bo73b3o!

EDIT:

ElijahKen wrote: December 13th, 2025, 7:07 pm Also guntrue_279 with a p3 eater (4366 -> 4248):
Code: Select all
EDIT: Replaced above with lower population version. Note that the lower population snark-syringe weld is the same displacement as the compact eater weld, but with fewer cells.

guntrue_837 and guntrue_1674 also get reductions (5670 -> 5544) - pattern below in p837, remove the rightmost glider for p1674

Code: Select all

x = 88, y = 63, rule = B3/S23
44b2o$43bobo$37b2o4bo$35bo2bo2b2ob4o$35b2obobobobo2bo14b2o$38bobobobo
17bobo$38bobob2o20bo4b2o$39bo20b4ob2o2bo2bo$34bo25bo2bobobobob2o$32b3o
17b2o9bobobobo9bo$31bo11b2o7bo11b2obobo8bobo$30bobo10b2o5bobo15bo$30b
obo17b2o26bo2bo$31bo22b2o23bobobob2o$15b2o38bo7b2o15bo3b2obo$16bo38bo
bo5b2o17bo4bo$16bobo37b2o25b4o$17b2o66bo$82bo2bo$40b2o41b3o$41bo43b2o
$38b3o45bo$36bo2bo45bobo$36b2o3bo24b2o17b2o$40b2o12bo11bo$17b2o34b2o12b
3o$18bo9b2o23bobo13bo11b2o$17bo10b2o50bo2bo$17b2o61bobo$20b2o59bo$17b
2ob2o$18bo67bo$16bo3b2o62bobo$16b4o2bo59bo3bo$19bobobo57b2o$16b2obo2b
o18bo39b2ob2o$17bobo19b3o39b2o$16bo2b2o17bo40b2o3bo$16bobo2bobo14b2o42b
o$17bobo2b2o53bo3bo$18bo41b2o4b2o8bob2o$60b2o3bo2bo7bo$60b2o4bobo6b2o
$17bo20b3o18b2o6bo$17b3o20bo20bo$11bo8bo18bo13b4o3bobo8b2o$11b3o5b2o35b
2obo2bo8bo$14bo34bo6b2o4b2o8b3o$13b2o32b3o6b2o16bo$46bo10b2o$4b2o41bo
$3bobo40b2o$3bo41bo2b2o$2obo7bo33b3o2bo$bobob2o2b3o13bo23bo$bobob2o2b
2o13bobo5b2o3b2o6b4o$2obo7bo13bo6b2o3b2o7bo$o2b4o3bo10b2o21bo$b2o3bo3b
o10bobo20b2o$3b2o18bo$3bo13bo5b2o$5bo12bo$4b2o10b3o!

EDIT 2: guntrue_231 reduced (3996 -> 3672)

Code: Select all

x = 68, y = 54, rule = B3/S23
21b2obob2o15b2o5b2o$20bo2b2obo2bob2obo7bo3bo2bo2bo$19bobo4bob2obob2o7b
2o2bo2bob2o$20bob5o19bo2bobo$22bo4bob2o16b3obo$21bo3bobob2o16b2o4bo$20b
o3bobo23bo$15bo4b2o3bo25bob3o$13b3o36b4o$12bo21bobo18bo$12b2o18bo2b2o
$8b2o21b3o$8b2o2$47b2o$46bo2bo$47b2obo$b2o47bo$b2o47b2o$35b2o$36bo$33b
3o23b2o$21b2o10bo25b2o$21bobo$2b2o19bo$3bo19b2o42bo$3o62b3o$o42b2o19b
o$44bo19b2o$44bobo$7b2o25bo10b2o$7b2o23b3o$31bo$31b2o$16b2o47b2o$17bo
47b2o$17bob2o$18bo2bo$19b2o2$6b2o4b2ob2o41b2o$7bo4bob2obo16b3o21b2o$7b
ob2obo4bo13b2o2bo18b2o$5b2o2bobob4ob2o11bobo21bo$6bobo2bobo4bobo22bo3b
2o3b3o$5bo2b2obob2o2b2obo21bobo3bo3bo$6b2o3bob2obobob2o19bobo3bo$8b2o
2b3o2b2o4bo13b2obobo3bo$8bo5bo4b3obo13b2obo2b4obo$9bo5b4o4bo17bobo3bo
bo$8b2o8bob2o15b2ob2o2bo2bobo$15b2obobo11bo5bobo2b2o3bo$15b2obobo12bo
4bobo$19bo11b3o5bo!

guntrue_693 reduced below 5000 cells (5037 -> 4692)

Code: Select all

x = 69, y = 68, rule = B3/S23
25b2o$26bo7b2o$26bobo5b2o$27b2o4$21b2o$21b2o17b2o$40b2o$59bo2b2o$8bo25b
3o22b4obo$7bobo24bo2bo4b2o20bo$32b2o2b2o4bobo12b7ob2o$6bo2bo21bo5bo6b
o11bo6bobo2bo$b2obobobo25b3o7b2o10b2o2b2obo3b2o$ob2o3bo10bo12b2o27b2o
b2o$o4bo10b3o12bo2b3o$b4o10bo16bo2bo13b2o2b2o$2bo11bobo15b2o10b2o2bo2b
o2bo5b2o$2bo2bo8bobo27bobo2bobobo6b2ob2o$2b3o10bo13b2o16b2ob2ob2o4b2o
bo$b2o27bo8bo8bo$bo25b3o10b2o3bo2bob2ob2o$obo24bo11b2o3bobob2obob2o$b
2o42bobo$46bo2b2o17bo$47b2ob3o13bobo$53bo13b2o$47b2ob3o$47b2obo$19b2o
42b2o$19bobo17b2o22bo$b2o18bo8b2o7b2o23b3o$2bo9b2o7b2o8bo34bo$bo10b2o
17bobo$b2o29b2o$4b2o$b2ob2o$2bo51b2o$o3b2o47bobo$4o2bo46bo$3bobobo44b
2o$2obo2bo5b2o11bo22bo$bobo7b2o10b3o21bo3b3o$o2b2o8bo8bo31bo$obo2bobo
14b2o13bo8bobo2b2o2bo$bobo2b2o28bobo5b3obobo2b2o$2bo16b2o15bobo4bo4b2o
b2o$17bo2bo16bo6b4o4bo$16b3o2bo12b3o11b4o$20b2o12bo11bo2bo$7b2o7b3o27b
2o$8bo6bo5bo$8bobo4b2o2b2o$9b2o4bo2bo$16b3o2$11b2o$11b2o17b2o$30b2o4$
24b2o$17b2o5bobo$17b2o7bo$26b2o!

Posted: **December 13th, 2025, 8:48 pm**

I wonder if this pseudo-gun_29 could be reduced by 2011 cells and set a record. (Currently 11,220, and the record is 9,212 cell BB.)

Code: Select all

x = 117, y = 108, rule = B3/S23
24b2o$24b2o$18bo$17b3o$17b3o$23b2o$14b6o3bobo$5b2o3b2obo2bobob2o$5b2o
2bobo4bobob2o2bo$9bobo2bobobobo$14bob2ob3obo$11b2o6b3o4b2o$12b5o3bo2bo
2bobo$21bobo4bo$22bo5b2o$97b3o$3bo94bo$3b3o17b2o$6bo16bo68b3o7b3o5b2o$
5b2o17b3o64bobo3b3o3bobo4b2o$26bo78bo$94b2o5b2ob2o$2o5bo81bo3bo3bobo3b
o$bo4bobo79bob2ob3o5b3o$bobo2bo2bo3b5o70bo$2b2o4b3o6b2o22bo45b2o$6bob
3ob2obo23b3o$9bobobobo2bobo17bo74bo$5bo2b2obobo4bobo2b2ob2o10b2o52b2o
17b3o$8b2obobo2bob2o3b2obo66bo16bo$4bobo3b6o10bo63b3o17b2o$5b2o19bobo
61bo$10b3o14b2o$10b3o22b2o78b2o$11bo22bo2bo77bo$35b2o63b3o5b3ob2obo$
100bo3bobo3bo3bo$27b2o69b2ob2o5b2o$25b2ob2o68bo$10b3o12b4o63b2o4bobo3b
3o3bobo$11bo14b2o10b2o7bo44b2o5b3o7b3o$6bo4bobo24bo9b2o$6bob3o2b4o22b
3o5b2o56bo$11bobo4b2o9b2o3b2o5bo62b3o$6bo5b2o5bo3b2o6bobo$6bo2b2o8bo3b
2o3bo7bo$7bo4b4ob2o10b2o3b2o$11bo3bo75bo2bo$2b2o7bo2b2o45b4o25bo$bobo
7bo2b2o45bo3bo24bo3bo$bo11b3o37b3o5bo28b4o11bo$2o53bo6bo2bo39bo$54bo
49bobo$26bo73bo9bo$5b2o17b3o73bo9b2o$6bo16bo37bobo28b2o4b4ob2ob2obob2o
$3b3o17b2o37b2o28b2o3b2o4bobob4o$3bo58bo33bo5bo2bo4bo$97b2o2b3o3bo2bo$
28b2o70bo2bo3bo5b2o$14b3o11bo71bobo5b2o3bobo$14b2o2bo7bobo71bobo5b3o4b
o$14b2o2bo7b2o42bo44b2o$14bo3bo49bobo$11b2ob4o4bo16b2o28b2o19bo$5b2o3b
o8b2o2bo14bobo49b3o17b2o$5b2o3bo5b2o5bo5b2o9bo5b2o45bo16bo$10b2o4bobo
11bo15bo45b2o17b3o$13b4o2b3obo6bobo11bobo66bo$16bobo4bo7b2o11b2o30bo$
18bo58b2o8b2o$17b3o56b2o10bo4b3o5bobo$48b3o37bobo3b2o5bobo$40bo6b3o39b
2o5bo3bo2bo$38b4o51bo2bo3b3o2b2o$37b2o3bo50bo4bo2bo5bo$36bo3b2o42bo8b
4obobo4b2o3b2o$37b4o6b3o35bo5b2obob2ob2ob4o4b2o$18bo17b3o9b3o12bo19b3o
6b2o9bo$16b3o16b2o26b3o27bo9bo$15bo16bo3bo29bo30bobo$15b2o6b2o7b4o21b
2o6b2o31bo$23bo34bo39bo$20b2obo8b2o14b2o8bobo$22bo9b2o14b2o9b2o29bobo$
18bo72b2o$17bo3bo69bo$15bo5bo36bobo6bo$14bo7bo44b2o$14bo3b2o3bo33bo11b
o$14b2o5bobo17b3o14b2o7b2o$22bo18bo2bo22bo31bo$41bo55bobo$41bo56b2o$
22bo19bobo6bo$21bobo5b2o19b2o7b2o$21bo3b2o3bo18bo11bo$22bo7bo19b2o$23b
o5bo21bo6bobo44bo$23bo3bo78b2o$26bo78b2o$11b2o9bo35b2o9b2o$11b2o8bob2o
33bobo8b2o$21bo38bo$20b2o6b2o22b2o6b2o$29bo22bo60bo$26b3o24b3o58bo$26b
o28bo56b3o!

Posted: **December 14th, 2025, 1:26 am**

ElijahKen wrote: December 13th, 2025, 8:48 pm I wonder if this pseudo-gun_29 could be reduced by 2011 cells and set a record. (Currently 11,220, and the record is 9,212 cell BB.)
Code: Select all

That pattern isn't 11220 cells, but here is the smallest form I could make based on it at 10804 cells

Code: Select all

x = 107, y = 101, rule = B3/S23
26bo28bo$26b3o24b3o$29bo22bo$20b2o6b2o22b2o6b2o$21bo38bo$11b2o8bobo34b
obo8b2o$11b2o9b2o34b2o9b2o$25b2o$25b2o$25bo2bo29b2o$25bo2b2o21b2o6bo$
22b2o2bo3bo19b2o8bo$21b2o6b2o9bobo8b2o7bo27bo$43bo15bo27b3o$43bo43b3o
$40bo2bo38b2o$41b3o15bo21bobo3b6o$14b2o6b2o34bo7b2o17b2obobo2bob2o3b2o
$14bo3bo2b2o35bo8b2o13bo2b2obobo4bobo2b2o$15b2o2bo39bo6b2o18bobobobo2b
obo$16bo2bo39b2o22bob3ob2obo$18b2o59b2o4b3o6b2o$18b2o58bobo2bo2bo3b5o
$21b2o9b2o14b2o9b2o17bo4bobo$21bobo8b2o14b2o8bobo16b2o5bo$23bo34bo$15b
2o6b2o7b4o21b2o6b2o36bo$15bo16bo3bo29bo15b2o17b3o$16b3o16b2o26b3o17bo
16bo$18bo29b3o12bo16b3o17b2o$38b2o7b3o30bo$37b2obo$38bob2o57bo5b2o$39b
2o57bobo4bo$47b3o39b5o3bo2bo2bobo$48b3o37b2o6b3o4b2o$91bob2ob3obo$86b
obo2bobobobo$31b2o11b2o36b2o2bobo4bobob2o2bo$30bobo11bobo35b2o3b2obo2b
obob2o$30bo8bo6bo44b6o3bobo$29b2o9bo5b2o52b2o$38b3o53b3o$94b3o$95bo2$
50b2o$45bo3b4o25b2o$45b2ob2ob2o24b2ob2o$44bobo2b2o27b4o12b3o$79b2o14b
o$93bobo4bo$90b4o2b3obo$87b2o4bobo$82b2o3bo5b2o5bo$54bo27b2o3bo8b2o2b
o$52bobo33b2ob4o4bo$53b2o36bo3bo$91b2o2bo7b2o$25b2o15b2o47b2o2bo7bobo
$26bo15bo48b3o11bo$26bobo11bobo62b2o$27b2o11b2o18bo$34b3o24b2o17bo$33b
o2bo8bo14b2o18b3o17b2o$33bob2o6bo2bo36bo16bo$34bo8bo2bo35b2o17b3o$44b
o58bo2$44bo23bo8b2o$43bo2bo22bo8bo11b3o$14bo28bo2bo12bo7b3o8bobo7bo2b
2o$12b3o16b2o12bo13b3o17b2o7bo2b2o$11bo16bo3bo29bo25bo3bo$11b2o6b2o7b
4o21b2o6b2o21bo4b4ob2o$19bo34bo28bo2b2o8bo3b2o$2o15bobo8b2o14b2o8bobo
26bo5b2o5bo3b2o$2o15b2o9b2o14b2o9b2o17bobo11bobo4b2o$75b2o6bob3o2b4o$
75bo7bo4bobo$88bo$23b2o24b2o36b3o$9bob2o10b2o26bo$12bo15bo20b2o7b3o$8b
o3b2o6b2o31bo3bo3bob3o17bo$8b2o4b3o3b3o12b3o16bobo3bo3b2o15bobo$14b3o
3b3o4b2o4b5o7b2o3bo3bobo25b2o$15b2o6b2o3bo4bo3b2o6b3obo3bo3bo$8bo15bo
9b2o2b2o10b3o7b2o$12b2o10b2obo7bo2b2o19bo$12b2o24b2o20b2o$37bo51bo$90b
2o$89b2o$7b2o9b2o34b2o9b2o$7b2o8bobo34bobo8b2o$17bo38bo$16b2o6b2o22b2o
6b2o$25bo22bo48bo$22b3o24b3o46bo$22bo28bo44b3o!

EDIT:

Period1GliderGun wrote: December 15th, 2025, 3:33 pm guntrue_229 reduction (4476 -> 4661)
Code: Select all

Old bounding box was 4779 (EDIT 2: Neither reduction worked)

(also, thanks for remembering to specify guntrue over gun, but still linking to Catagolue and posting in regular RLE would also be more helpful)

Posted: **December 15th, 2025, 3:33 pm**

guntrue_229 reduction (4476 -> 4661)

Code: Select all

x = 79, y = 59, rule = LifeHistory
29.2A11.A$28.B2AB9.A.A$29.3B9.A.A2.2A3.A$28.B.B9.2A.2A2.A2.A.A$28.5B8.
B2.A.A3.A.A$28.6B6.2ABA2.4A.A$28.8B4.2A.A.A3.A$29.13B2.A.AB2.A15.2A$27.
13B5.A.A2B.A14.A$26.15B5.A2B.2A11.BA.A$26.15B4.3B12.2A.B2A$25.17B.B.2B
12.B2A2B$25.29B6.4B$24.13B2A16B3.6B14.A$23.14B2A16B2.6B7.B5.3A$22.2AB
3.27B.7B6.2AB3.A$21.A2.A4.35B6.2A3.2A$20.A.2A5.6B3.B2.2B2.20B5.2A5B$20.
A7.6B14.21B2.2A2B$19.2A6.9B14.21B2A4B$26.4B4.2A15.25BABA$25.4B5.A15.28B
A$24.A3B7.3A12.21BA6BA$23.B2AB10.A10.2AB.3B2.14BA2BA2BA$22.BABA21.A.A
B6.19B$21.4B22.A8.12B2.4B$11.2A7.4B22.2A7.12B3.2B2AB$10.B2AB5.4B31.10B
8.2A$10.3B5.4B31.4B.6B$11.B.B3.4B31.4B3.B.B$9.6B.4B31.4B5.3B$2A7.10B31.
4B5.B2AB$.A7.9B7.2A22.4B7.2A$.A.AB2.10B8.A22.4B$2.2AB.10B6.BA.A21.ABA
B$4.12B2.3B.B2A10.A10.B2AB$4.19B12.3A7.3BA$4.19B15.A5.4B$4.18B15.2A4.
4B$5.18B14.9B6.2A$6.19B14.6B7.A$7.21B2.2B2.B3.6B5.2A.A$9.35B4.A2.A$10.
7B.27B3.B2A$10.6B2.16B2A14B$9.6B3.16B2A13B$9.4B6.29B$9.2B2AB12.2B.B.17B
$7.2AB.2A12.3B4.15B$6.A.AB11.2A.2BA5.15B$6.A14.A.2BA.A5.13B$5.2A15.A2.
BA.A2.13B$23.A3.A.A.2A4.8B$21.A.4A2.AB2A6.6B$20.A.A3.A.A2.B8.5B$20.A.
A2.A2.2A.2A9.B.B$21.A3.2A2.A.A9.3B$29.A.A9.B2AB$30.A11.2A!

guntrue_233 reduction (4920 -> 4800)

Code: Select all

x = 80, y = 60, rule = LifeHistory
30.2A11.A$29.B2AB9.A.A$30.3B9.A.A2.2A3.A$29.B.B9.2A.2A2.A2.A.A$29.5B8.
B2.A.A3.A.A$29.6B6.2ABA2.4A.A$29.8B4.2A.A.A3.A$30.13B2.A.AB2.A15.2A$28.
13B5.A.A2B.A14.A$27.15B5.A2B.2A11.BA.A$27.15B4.3B12.2A.B2A$26.17B.B.2B
12.B2A2B$26.29B6.4B$25.13B2A16B3.6B14.A$24.14B2A16B2.6B7.B5.3A$23.2AB
3.27B.7B6.2AB3.A$22.A2.A4.35B6.2A3.2A$21.A.2A5.6B3.B2.2B2.20B5.2A5B$21.
A7.6B14.21B2.2A2B$20.2A6.9B14.21B2A4B$27.4B4.2A15.25BABA$26.4B5.A15.28B
A$25.4B7.3A12.21BA6BA$24.A3B10.A10.2AB.3B2.14BA2BA2BA$23.B2AB21.A.AB6.
19B$22.BABA22.A8.12B2.4B$21.4B22.2A7.12B3.2B2AB$11.2A7.4B31.10B8.2A$10.
B2AB5.4B31.4B.6B$10.3B5.4B31.4B3.B.B$11.B.B3.4B31.4B5.3B$9.6B.4B31.4B
5.B2AB$2A7.10B31.4B7.2A$.A7.9B7.2A22.4B$.A.AB2.10B8.A22.ABAB$2.2AB.10B
6.BA.A21.B2AB$4.12B2.3B.B2A10.A10.3BA$4.19B12.3A7.4B$4.19B15.A5.4B$4.
18B15.2A4.4B$5.18B14.9B6.2A$6.19B14.6B7.A$7.21B2.2B2.B3.6B5.2A.A$9.35B
4.A2.A$10.7B.27B3.B2A$10.6B2.16B2A14B$9.6B3.16B2A13B$9.4B6.29B$9.2B2A
B12.2B.B.17B$7.2AB.2A12.3B4.15B$6.A.AB11.2A.2BA5.15B$6.A14.A.2BA.A5.13B
$5.2A15.A2.BA.A2.13B$23.A3.A.A.2A4.8B$21.A.4A2.AB2A6.6B$20.A.A3.A.A2.
B8.5B$20.A.A2.A2.2A.2A9.B.B$21.A3.2A2.A.A9.3B$29.A.A9.B2AB$30.A11.2A!

Posted: **December 15th, 2025, 5:37 pm**

Finally, a reduction that works, guntrue_1216 (5525 -> 3050)

Code: Select all

x = 50, y = 61, rule = B3/S23
27bo$18b2o5b3o$10b2o6b2o4bo$11bo12b2o$11bobo$12b2o$23b2o$23b2o2$b2o$2b
o$2bobo23b2o$3b2o6b2o5b4o6bobo$11b2o4bo3bo8bo$12bo3bo12b2ob2obo$2bo14b
2ob2o10bob2o$2bobo9bo2bo2bo11bo$bobo3b2o4b2o3b2o3b2o6b2o$3bo3bobo3bo4b
2o3b2o$8bo2$44b2o$43bo$40bo5bo$24b2o3b2o4bo3bobo2b2o$16b2o6b2o3b2o3b2o
4b2o4b3o$16bo11bo2bo2bo11b3o$13b2obo10b2ob2o12b2o$13bob2ob2o12bo3bo8b
o2bo$18bo8bo3bo4b2o7bo3bo$18bobo6b4o5b2o7bo$19b2o24bo2bo$46bo$44bobob
o$24b2o16b3ob2obo$19b2o3b2o15bo7bo$18bobo16bo3b5ob2o$17b3o15b3o3b2o2b
obo$17b2o18bo3b4o2bo$20b2o19bo3b2o$19b3o6bo13b3o$27bo16bo$12b2o13b3o$
11b3o5b2o11bo7b2o$10bob2o5b2o10bobo$9bobo20bo6bo3bo$9bo2bo25bo4bo$10b
2o17bo7bobobo$4b2o10b2o10bobo5bobobo$3bobo9bo2bo9bo2bo2bo4bo$3bo12b2o
11b3o2bo3bo$2obo7bo$bobob2o2b3o24b2o$bobob2o2b2o19b2o$2obo7bo18b2o$o2b
4o3bo10b2o$b2o3bo3bo10bobo$3b2o18bo$3bo13bo5b2o$5bo12bo$4b2o10b3o!

guntrue_608 (4814-> 2695)

Code: Select all

x = 49, y = 55, rule = B3/S23
26bo$17b2o5b3o$9b2o6b2o4bo$10bo12b2o$10bobo$11b2o$22b2o$22b2o$16b3o$2o
14b3o$bo14b3o$bobo10bo5bo6b2o$2b2o8b3o5b3o4bobo$8b3o6bo11bo$8bo7b3o9b
2ob2obo$bo6b3o2bob2ob2obo9bob2o$bobo9b4ob4o9bo$obo8b2ob2o3b2obo7b2o$2b
o$12b2o7b2o$13b2o5b2o$14bo5bo5bo5bo10b2o$25b2o5b2o8bo$24b2o7b2o10bo$43b
2o$15b2o7bob2o3b2ob2o9b3o$15bo9b4ob4o11b3o$12b2obo9bob2ob2obo2b3o4b2o
$12bob2ob2o9b3o7bo5bo2bo$17bo11bo6b3o5bo3bo$17bobo4b3o5b3o9bo$18b2o6b
o5bo11bo2bo$28b3o14bo$28b3o12bobobo$23b2o3b3o10b3ob2obo$23b2o15bo7bo$
17b2o17bo3b5ob2o$16b3o15b3o3b2o2bobo$15bob2o17bo3b4o2bo$14bobo23bo3b2o
$14bo2bo23b3o$15b2o26bo$9b2o10b2o$8bobo9bo2bo$8bo12b2o10b2o$5b2obo7bo
12b4o4b2o$6bobob2o2b3o12b3ob2o2b2o$6bobob2o2b2o18bo$5b2obo7bo$5bo2b4o
3bo10b2o$6b2o3bo3bo10bobo$8b2o18bo$8bo13bo5b2o$10bo12bo$9b2o10b3o!

EDIT: guntrue_912 reduced (3564-> 2914). Can it be reduced in a better way?

Code: Select all

x = 62, y = 47, rule = B3/S23
8b2ob2o2b2o$4b2obobobo2bo2bo$3bo2b2obo2b3ob2o$2bobo3bob2o4bo18bo2b2o$
2bo2b3o5b2o3bo16b4obo$b2o5b3ob2o3b4o19bo$7b2o12bo11b7ob2o$b4o4bo2b4ob
3o2bo9bo6bobo2bo$bo3bo3b2o9b2o10b2o2b2obo3b2o$4bobob2o8b2o16b2ob2o6b2o
$3bo2bobob7ob2o3b2o22b2o$4bo7b4obob3o2bo$4bo14bob2o$19bo19bo6bob2o$11b
o8b3o4b2o9bobo5bobo$10bo3bo7bo3b3o9bobo6bo$10bo4bo9bob2o10bo7b2o$10bo
7bo5bobo20b2o$2o8bo2b2o4bo4bo2bo19b2o$2o9b2o2bo9b2o$11bobo3b2o$12b3o$
12bobo2b2o$14b2o2bobo11b3o$18b3o13bo4b2o$14b2o3bobo11bo5bo$17bo2b2o18b
3o$13bo4b2o2bo13b2o4bo$14bo7bo14bo$17bo4bo10b2o2bob2o$11b2o5bo3bo9bob
3obobo$11bo9bo10bo3b2o$5b2o6bo15bo3b4o$6bo2b4obo14b4o$6bobo2bo2bo2b4o
12bob4o$5b2ob2o3bob8o8bobobo2bo14bo$5bo2bob2o11bo6bobo3bob2o12bobo6bo
$7b2obo2bobo6b3o4bobo5bobo4b2o7bo5bobo$8bo2bobo3b4o2bob2o2bo8bo5b2obo
12b2o$6bo3b2obobo12b2o2bo15bo7bo$6b2o6b4ob3obo6b3o12bo9bobo$14bo3b5o2b
5o6b2o8bob2o4bo2bo$6b2o3bob4o3bo6bo3b4o2bo10b2o4bobo$6bo2bobo3bo2bo9b
2o5b2o17b3o$7bo3bo8b4o8bobo19b2o$9b2o4bobo4b3o3bobo3bo19b2o$16bo7bo5b
ob2o20b2o!

EDIT 2: guntrue_456 can also be reduced (2397 -> 2350). Can it improve the previous reduction?

Code: Select all

x = 50, y = 47, rule = B3/S23
8b2ob2o2b2o$4b2obobobo2bo2bo$3bo2b2obo2b3ob2o$2bobo3bob2o4bo$2bo2b3o5b
2o3bo15bo2b2o$b2o5b3ob2o3b4o13b4obo$7b2o12bo17bo$b4o4bo2b4ob3o2bo9b7o
b2o$bo3bo3b2o9b2o9bo6bobo2bo$4bobob2o8b2o11b2o2b2obo3b2o$3bo2bobob7ob
2o3b2o10b2ob2o6b2o$4bo7b4obob3o2bo21b2o$4bo14bob2o23b2o$19bo8b2o17bo$
20b3o4bo2bo7bo7bobo$22bo3bobobo6bobo5b2obo$25b3obo7bobo$25b3o10bo$2o12b
2o30b2o$2o12b3o29b2o$13b2ob3o$17bo$12b2o3bo$15bo3b2o$15bo$14b3ob2o18b
2o$16b3o19bo10bo$17b2o20b3o5bobo$37bobo2bo5b2o$33b2o2b2o2b2o$11b2o19b
ob3o$11bo20bo3b3o$5b2o6bo15bo3b3o3bo$6bo2b4obo14b4o5bo$6bobo2bo2bo2b4o
13bobobo$5b2ob2o3bob8o8b3obo$5bo2bob2o11bo6bo3bobo$7b2obo2bobo6b3o4bo
2bo2bobo$8bo2bobo3b4o2bob2o2bob3obob3o$6bo3b2obobo12b2o5bo4bo$6b2o6b4o
b3obo6b5ob4o$14bo3b5o2b5o6bo$6b2o3bob4o3bo6bo3b4o2bo$6bo2bobo3bo2bo9b
2o5b2o$7bo3bo8b4o8bobo$9b2o4bobo4b3o3bobo3bo$16bo7bo5bob2o!

EDIT 3: Here is a population reduction to guntrue_498 using a much smaller p6 thumb that still can't be uploaded to Catagolue since it STILL hasn't been fixed & is limited from being a bb reduction by a spark

Code: Select all

x = 48, y = 42, rule = B3/S23
3b2o$3bobo$5bo18b2o$5b2o18bo$24bo$3b4o17b2o$3bo2bo$4bo32b2o$b3o33b2o$
bo2$27b2o$2o9bo15b2o$obob2o4bobo34bo$2bob2o4bobo32bobo$bo9bo34b2o$b2o
b2o$2bobo$2bobo13b3ob2o$3bo8b3o3b3o21bo$12bobo3bob2o18b4o$11b2obo3bob
o19bo3bo$12b3o3b3o8bo6b2o5bo$9b2ob3o13bobo4bo3b3o2b3o$28bobo4bo2bo3b2o
2bo$27b2ob2o4bo3b2o2b2o$21bo11b3o5bobo$6b2o12bobo4b2ob2obo7bobo$6b2o12b
obo4b2obobo9bo$21bo3$31bo$29b3o$28bo$26bo2bo$26b4o2$26b2o$27bo$27bobo
$28b2o!

EDIT 4: guntrue_996 reduced with multiple useful techniques once I realized the x12 eater wouldn't react with any domino edge (3608 -> 3402) - this could likely be reduced by adding an x2 multiplying mechanism to the above guntrue_498 (EDIT: There were at least 3 easy points of compression, really surprised no one took care of this one yet)

Code: Select all

x = 79, y = 42, rule = B3/S23
16b2o56b2o$16bo56bobo$17bo35b2o18bo$4bo11b2o35bo18b2o$4b3o11b2o11bo22b
o$7bo8b2o2bo10b3o19b2o17b4o$6b2o9bobo14bo37bo2bo$b2o7bo4bobob2o12b2o39b
o$2bo6bobo3b2o8b2o48b3o$2bobo4bo2bo13bo50bo$3b2o5b2o14bobo$27b2o21b2o
$50b2o25b2o$b2o62b3o5b2obobo$2bo15bo46bo7b2obo$bo15bobo6b2o37b2o10bo$
b2o14b2o7bo46b2ob2o$4b2o18bobo47bobo$b2ob2o18b2o37b2o9bobo$obo10b2o48b
obo9bo$o3b4o4bo2bo42bo5b3o$b3o3bo5b2o43b3o5bo$4bo44bo9bobo$3b2o43bobo
9b2o$36bo11bobo$35b3o8b3ob2o$35bo2b2o5bo12b2o$40bo5b3ob2o7bo11b2o$16b
o20b2obo7bob2o5b3o11b2o$15bobo21bo$15bobo$16bo$20b2o21b2o3bo$20bobo20b
obobobo$22bo3b2o17bobo2bo$22b2obobo7bo9bo2b2o2bo$23bobo8bobo9b2o2b3o$
23bobo4b2obobo12bo$24bo4bobobobobo10b2ob2o$16bo12bo4bobobo10bobo$17bo
12b3obobobo10bobo$15b3o14b2o3bo12bo!

Posted: **December 16th, 2025, 10:59 am**

WhiteHawk wrote: December 15th, 2025, 5:37 pm EDIT: guntrue_912 reduced (3564-> 2914). Can it be reduced in a better way?

Code: Select all

x = 62, y = 47, rule = B3/S23
8b2ob2o2b2o$4b2obobobo2bo2bo$3bo2b2obo2b3ob2o$2bobo3bob2o4bo18bo2b2o$
2bo2b3o5b2o3bo16b4obo$b2o5b3ob2o3b4o19bo$7b2o12bo11b7ob2o$b4o4bo2b4ob
3o2bo9bo6bobo2bo$bo3bo3b2o9b2o10b2o2b2obo3b2o$4bobob2o8b2o16b2ob2o6b2o
$3bo2bobob7ob2o3b2o22b2o$4bo7b4obob3o2bo$4bo14bob2o$19bo19bo6bob2o$11b
o8b3o4b2o9bobo5bobo$10bo3bo7bo3b3o9bobo6bo$10bo4bo9bob2o10bo7b2o$10bo
7bo5bobo20b2o$2o8bo2b2o4bo4bo2bo19b2o$2o9b2o2bo9b2o$11bobo3b2o$12b3o$
12bobo2b2o$14b2o2bobo11b3o$18b3o13bo4b2o$14b2o3bobo11bo5bo$17bo2b2o18b
3o$13bo4b2o2bo13b2o4bo$14bo7bo14bo$17bo4bo10b2o2bob2o$11b2o5bo3bo9bob
3obobo$11bo9bo10bo3b2o$5b2o6bo15bo3b4o$6bo2b4obo14b4o$6bobo2bo2bo2b4o
12bob4o$5b2ob2o3bob8o8bobobo2bo14bo$5bo2bob2o11bo6bobo3bob2o12bobo6bo
$7b2obo2bobo6b3o4bobo5bobo4b2o7bo5bobo$8bo2bobo3b4o2bob2o2bo8bo5b2obo
12b2o$6bo3b2obobo12b2o2bo15bo7bo$6b2o6b4ob3obo6b3o12bo9bobo$14bo3b5o2b
5o6b2o8bob2o4bo2bo$6b2o3bob4o3bo6bo3b4o2bo10b2o4bobo$6bo2bobo3bo2bo9b
2o5b2o17b3o$7bo3bo8b4o8bobo19b2o$9b2o4bobo4b3o3bobo3bo19b2o$16bo7bo5b
ob2o20b2o!

It can be reduced more, if that is what you are asking (2914 -> 2867):

Code: Select all

x = 61, y = 47, rule = B3/S23
8b2ob2o2b2o21bo2b2o$4b2obobobo2bo2bo20b4obo$3bo2b2o4b3ob2o25bo$2bobo4b
3o4bo19b7ob2o$2bo2b3o3bo2b2o2bo16bo6bobo2bo$b2o4b2ob3ob2ob4o14b2o2b2ob
o3b2o$8bo2bo3bo5bo17b2ob2o6b2o$b4o4bo2b4ob3o2bo27b2o$bo3bo4b2o4b2o2b2o
$3b2o2bo2bobo2bob2o13b2o$7bobob6obo4b2o6bo2bo7bo6bob2o$3bobo14b2o2bo5b
obobo6bobo5bobo$4bo13bo2b2o6b3obo7bobo6bo$19bo9b3o10bo7b2o$20b3o27b2o$
12bo9bo27b2o$10b2obo$10bo2bo$2o11bo5bo$2o9bo3b2ob2o$12b2o4bobo$14bo27b
2o$13bob3o24bo$15b3obo23b3o$18bo12b3o11bo$12bobo4b2o12bo$13b2ob2o3bo
10bo7bo$13bo5bo18b3o$19bo2bo14bo14bo$19bob2o10b2o2b2o12bobo6bo$11b2o7b
o11bobo8b2o7bo5bobo$11bo20bo3b2o5b2obo12b2o$5b2o6bo15bo3b4o10bo7bo$6bo
2b4obo14b4o5bo5bo9bobo$6bobo5bo18bob3o7bob2o4bo2bo$5b2o2bo4bob6o9bobob
o2bo8b2o4bobo$5bo2bobobo4bo2bob2o6bobo3bobo14b3o$7b2obo2b4o4b2o2bo3bob
o5bobo13b2o$8bo2bobobob4o4bo3bo8bo14b2o$6bo3b2obobo2bo2b2ob2o2b2o2bo
20b2o$6b2o4bobob2o3b3ob2o3b3o$12b2o4b2o6b4o6b2o$6b2o3b2o2b2obobo9b5o2b
o$6bobo2bo3bo2b3o8bobo3b2o$7b3obo4b2o2b2obo4b2o2b3o$9b2o4b3o5b3o2b3obo
bo$30bob2o!

Thanks for trying the p29 gun. I was unable to improve on your design, but I found some things that are very close to reducing the p58 gun. Unfortunately, they seem unsalvageable.

Code: Select all

x = 75, y = 69, rule = B3/S23
63b2o$64bo$60bobo$56bo2bob6o$56b4o6bo$60b4o$56b3obo2bo$55bo2b2o$55b2o
11bo$67b3o$66b2ob2o2b2o$56b2o9b3o3b2o$57bo10bo$57bobo$58b2o6bo$65b3o$
64b2ob2o3bo$55b2o8b3o3bobo$56bo9bo5bo$56bobo$57b2o2$38bo21b2o$38b3o19b
obo$41bo18b2obo$32b2o6b2o$33bo$23b2o8bobo9bobo4b3o5b2o$23b2o9b2o3bo6b
2o12b2o$38bo3b2ob2o4bo3bo$39bo5bo5bo3bo$24bo21bo$23bo2bo13bo5bobobobo
3bo$23b2ob3o12bob2obo3bo5bo$23bo2b3o12b2o5bobo4bo$26bob2o12b3obo9b3o$
22b2o4b2o9b2o5b2o10bo$21b2o5b2o9b2o4b2o$22bob3o12b2obo$18bobo5b2o12b3o
2bo$13b2o3bo3bob2obo12b3ob2o$13bo2bobobobo5bo13bo2bo$22bo21bo$11bo5bo
5bo5bo$10bo11b2ob2o3bo$11bo4bo4b2o6bo3b2o9b2o$12b3o6bobo9bobo8b2o$35bo
$8bo7b2o9b2o6b2o$8bo7bobo8bo$2b2o4bo9bo9b3o$bo9bo6b2o10bo$2bo4bobobo$
3bo7bo$6bo8b2o$2bo3bobo6bobo$bo15bo$o8bo7b2o$obob2obobo$bo7bo$6bo11b2o
$6bo8b2o2bo$6bo4bo2bob3o$11b4o$8bo6b4o$8b6obo2bo$12bobo$10bo$10b2o!
[[ STOP 11 ]]

Posted: **December 16th, 2025, 2:36 pm**

guntrue_513 reduced (2820 -> 2773)

Code: Select all

x = 59, y = 47, rule = B3/S23
16bo7bo4bobobo15bo2b2o$10bo5bo7bo4bo2bobo14b4obo$8b2obo4bo4bo2bo3bo4b
2o19bo$6bobo2bo3b2o2b2obo5bo2bo3b2o10b7ob2o$6b2o2bob2o2b3obo9bob3o2bo
8bo6bobo2bo$18bo3bo3b4o6bo9b2o2b2obo3b2o$6b2o5bo2b2o8bo3b5ob4o10b2ob2o
$6bo3b2obobo5b2obo3b2o5bo4bo$8bo2bobo2bob2o2b2obo3bob3obob3o$7b2obo3b
o3b2o2bo2bo3bo2bo2bobo12b2o$5bo4b3o2bob4o3bo5bo3bobo13b2ob2o$5b2obo2b
2ob3o4b2o8b3o2b2o3b2o6b2obo$6bobo2bo2bo19b2obo4bo$6bo2b4obo3b2o9b4o4b
3o2bobo$5b2o6bo15bo3b4o2bo3b2o$11bo20bo4b2o$11b2o4bobo12bobo23bo$17b2o
14b2o2b2o2b2o13bobo$16b2o2b3o14bobo2bo14b2o$13bo3b3o4bo6bo7b3o$12bobo
2b4o11bo5bo$12bo4b2o4b2o5b3o5b2o13b2o$17b2obo32bo$13b2o2bo36b3o$15bo2b
2o36bo$12bob2o$8b2o4b2o4bo$2o10b4o2bobo$2o6bo4b3o3bo8b2o$10b3o2b2o10b
obo$14b2o11bo$13bobo6bo3b2o8b2o$20b3o13b2o$19bo$13b2o4bob2o$3b3o11bo3b
o2bo$3b2o3bob2o4bo6b2o10b2ob2o$4bobobo3b4ob2o12b2o2b2obo3b2o$bo3bo4bo
2b2o2bo2b2o9bo6bobo2bo$b4o4b2o2b2o3b2o2bo9b7ob2o$7bo2b2o4bo4bo17bo$b2o
6bo2b3o2b4o13b4obo$2bo2b3o5b2o3bo15bo2b2o$2bobo3b4o4bo$3bo2b2obo2b3ob
2o$4b2obobobo2bo2bo$8b2ob2o2b2o!

Challenge: Can guntrue_342 and/or guntrue_684 be reduced?

Also, the only guns below p1250 not in catagolue are guntrue_1241 and guntrue_1243 if anyone wants to try and fill them in.

EDIT: Solved 684 (3564 -> 2773) and guntrue_1368 (3960 -> 2773), likely terminating the need for the old p114 gun

Code: Select all

x = 59, y = 47, rule = B3/S23
16bo7bo4bobobo15bo2b2o$10bo5bo7bo4bo2bobo14b4obo$8b2obo4bo4bo2bo3bo4b
2o19bo$6bobo2bo3b2o2b2obo5bo2bo3b2o10b7ob2o$6b2o2bob2o2b3obo9bob3o2bo
8bo6bobo2bo$18bo3bo3b4o6bo9b2o2b2obo3b2o$6b2o5bo2b2o8bo3b5ob4o10b2ob2o
$6bo3b2obobo5b2obo3b2o5bo4bo$8bo2bobo2bob2o2b2obo3bob3obob3o$7b2obo3b
o3b2o2bo2bo3bo2bo2bobo12b2o$5bo4b3o2bob4o3bo5bo3bobo13b2ob2o$5b2obo2b
2ob3o4b2o8b3o2b2o3b2o6b2obo$6bobo2bo2bo19b2obo4bo$6bo2b4obo3b2o9b4o4b
3o2bobo$5b2o6bo15bo3b4o2bo3b2o$11bo20bo4b2o$11b2o4bobo12bobo23bo$17b2o
14b2o2b2o2b2o13bobo$16b2o2b3o14bobo2bo14b2o$13bo3b3o4bo6bo7b3o$12bobo
2b4o11bo5bo$12bo4b2o4b2o5b3o5b2o13b2o$17b2obo32bo$13b2o2bo36b3o$15bo2b
2o36bo$12bob2o$8b2o4b2o4bo$2o10b4o2bobo$2o6bo4b3o3bo$10b3o2b2o8b3o10b
o$14b2o9b3obo7bobo$13bobo6bo3bobobo6bobo$20b3o4bo2bo7bo$19bo8b2o$13b2o
4bob2o$3b3o11bo3bo2bo$3b2o3bob2o4bo6b2o10b2ob2o$4bobobo3b4ob2o12b2o2b
2obo3b2o$bo3bo4bo2b2o2bo2b2o9bo6bobo2bo$b4o4b2o2b2o3b2o2bo9b7ob2o$7bo
2b2o4bo4bo17bo$b2o6bo2b3o2b4o13b4obo$2bo2b3o5b2o3bo15bo2b2o$2bobo3b4o
4bo$3bo2b2obo2b3ob2o$4b2obobobo2bo2bo$8b2ob2o2b2o!

Code: Select all

x = 59, y = 47, rule = B3/S23
16bo7bo4bobobo15bo2b2o$10bo5bo7bo4bo2bobo14b4obo$8b2obo4bo4bo2bo3bo4b
2o19bo$6bobo2bo3b2o2b2obo5bo2bo3b2o10b7ob2o$6b2o2bob2o2b3obo9bob3o2bo
8bo6bobo2bo$18bo3bo3b4o6bo9b2o2b2obo3b2o$6b2o5bo2b2o8bo3b5ob4o10b2ob2o
$6bo3b2obobo5b2obo3b2o5bo4bo$8bo2bobo2bob2o2b2obo3bob3obob3o$7b2obo3b
o3b2o2bo2bo3bo2bo2bobo12b2o$5bo4b3o2bob4o3bo5bo3bobo13b2ob2o$5b2obo2b
2ob3o4b2o8b3o2b2o3b2o6b2obo$6bobo2bo2bo19b2obo4bo$6bo2b4obo3b2o9b4o4b
3o2bobo$5b2o6bo15bo3b4o2bo3b2o$11bo20bo4b2o$11b2o4bobo12bobo23bo$17b2o
14b2o2b2o2b2o13bobo$16b2o2b3o14bobo2bo14b2o$13bo3b3o4bo6bo7b3o$12bobo
2b4o11bo5bo$12bo4b2o4b2o5b3o5b2o13b2o$17b2obo32bo$13b2o2bo36b3o$15bo2b
2o36bo$12bob2o$8b2o4b2o4bo$2o10b4o2bobo25b2o$2o6bo4b3o3bo26b2o$10b3o2b
2o8b3o10bo$14b2o9b3obo7bobo$13bobo6bo3bobobo6bobo5b2obo$20b3o4bo2bo7b
o7bobo$19bo8b2o17bo$13b2o4bob2o23b2o$3b3o11bo3bo2bo21b2o$3b2o3bob2o4b
o6b2o10b2ob2o6b2o$4bobobo3b4ob2o12b2o2b2obo3b2o$bo3bo4bo2b2o2bo2b2o9b
o6bobo2bo$b4o4b2o2b2o3b2o2bo9b7ob2o$7bo2b2o4bo4bo17bo$b2o6bo2b3o2b4o13b
4obo$2bo2b3o5b2o3bo15bo2b2o$2bobo3b4o4bo$3bo2b2obo2b3ob2o$4b2obobobo2b
o2bo$8b2ob2o2b2o!

New challenge: guntrue_741 or guntrue_855, & guntrue_1026

EDIT 2: guntrue 342 reduced (2928 -> 2820)

Code: Select all

x = 60, y = 47, rule = B3/S23
30bob2o$9b2o4b3o5b3o2b3obobo15bo2b2o$7b3obo4b2o2b2obo4b2o2b3o15b4obo$
6bobo2bo3bo2b3o8bobo3b2o18bo$6b2o3b2o2b2obobo9b5o2bo10b7ob2o$12b2o4b2o
6b4o6b2o9bo6bobo2bo$6b2o4bobob2o3b3ob2o3b3o14b2o2b2obo3b2o$6bo3b2obob
o2bo2b2ob2o2b2o2bo18b2ob2o$8bo2bobobob4o4bo3bo8bo$7b2obo2b4o4b2o2bo3b
obo5bobo$5bo2bobobo4bo2bob2o6bobo3bobo12b2o$5b2o2bo4bob6o9bobobo2bo12b
2ob2o$6bobo5bo18bob3o4b2o6b2obo$6bo2b4obo14b4o5bo4bo$5b2o6bo15bo3b4o6b
obo$11bo20bo3b2o6b2o$11b2o7bo11bobo3bobo$19bob2o10b2o2bob2o18bo$19bo2b
o14bo19bobo$13bo5bo16b2o4bo15b2o$13b2ob2o3bo10bo7b3o$12bobo4b2o12bo5b
o$18bo12b3o5b2o13b2o$15b3obo34bo$13bob3o37b3o$14bo42bo$12b2o4bobo$2o9b
o3b2ob2o5b2ob2o$2o11bo5bo4bobob2o$10bo2bo10bo$10b2obo9b2o11b2o$12bo9b
o5bo2bo4b2o$20b3o5b4o$19bo5bo$4bo13bo2b9o11bo$3bobo14b2o7bo7b2obobo$7b
obob6obo5b4o8bobobobo$3b2o2bo2bobo2bob2o5bo2b2o4bo2bobobob2o$bo3bo4b2o
4b2o2b2o11b4ob2o2bo$b4o4bo2b4ob3o2bo14bo4bo$8bo2bo3bo5bo11b2o2bob3o$b
2o4b2ob3ob2ob4o12b2o3b2o$2bo2b3o3bo2b2o2bo$2bobo4b3o4bo$3bo2b2o4b3ob2o
$4b2obobobo2bo2bo$8b2ob2o2b2o!

Here is p1026 too (3968 -> 3619)

Code: Select all

x = 77, y = 47, rule = B3/S23
23b2o2bo15b2obo$22bob4o14bobob3o2b3o5b3o4b2o$22bo19b3o2b2o4bob2o2b2o4b
ob3o$20b2ob7o10b2o3bobo8b3o2bo3bo2bobo$18bo2bobo6bo8bo2b5o9bobob2o2b2o
3b2o$18b2o3bob2o2b2o9bo6b4o6b2o4b2o$22b2ob2o10b4ob5o3b2ob3o3b2obobo4b
2o$36bo4bo5b2o2b2ob2o2bo2bobob2o3bo$37b3obob3obo3bo4b4obobobo2bo$39bo
bo2bo2bo3bo2b2o4b4o2bob2o$23bo18bo3bo6b2obo2bo4bobobo2bo$22bobo9b2o3b
o3b3o9b6obo4bo2b2o$22bobo9bo6b2o19bo5bobo$7b2o14bo8bobo2bobo4b4o14bob
4o2bo$7bobo22b2o3bo2b4o3bo15bo6b2o$10bo2b2o23b3o3bo20bo$8b2obo2bo27bo
bo8bobo8b2o$7bobob2o21b2o2b2o2b2o12bo$8bo25bo2bobo18bo$b2o32b3o18b3o$
2bo26b2o7bo15bo2bo$2bobo9b2o6b2o4b2o7b2o16b2o$3b2o9b2o7bo6bo11bo12b2o
5bo$20b3o19bobo11bo2bo2b2o$20bo21b2o13b2o2bo2bo$58bo5b2o$11b2o4b2o45b
2o$11bobo3bobo43bo2bo8b2o$12bo6bo27b2o13b3o10b2o$19b2o17bo8bobo12bo$37b
obo9bo14bo$2o35bobo9b2o3bo10bobo$o2bo34bo15b3o$b3o53bo$54b2o2bo13bo$b
3o3b2o43bo2b2o14bobo$obo4b2o28b2ob2o10b2o4bob6obobo$o3bo28b2o3bob2o2b
2o12b2obo2bobo2bo2b2o$b3obo27bo2bobo6bo9b2o2b2o4b2o4bo3bo$3bobo29b2ob
7o9bo2b3ob4o2bo4b4o$4bo32bo17bo5bo3bo2bo$37bob4o13b4ob2ob3ob2o4b2o$38b
2o2bo15bo2b2o2bo3b3o2bo$60bo4b3o4bobo$24bo34b2ob3o4b2o2bo$25bo33bo2bo
2bobobob2o$23b3o34b2o2b2ob2o!

Old design

Code: Select all

x = 62, y = 64, rule = B3/S23
2b2o$2b2o2$2bo$bobo$bo2bo2b2o$5bob2o12b4o$3b2o15bo4bo$19bobo3bo$2o16b
obo3bo$bo16bo$bobo14bo$2b2o14bo2bo$19b2o$5b2o$5b2o4$52bo2b2o$52b4obo$
57bo$50b7ob2o$49bo6bobo2bo$10b2o37b2o2b2obo3b2o$10bo42b2ob2o$11b3o$13b
o$53b2o$53b2ob2o$44b2o6b2obo$45bo$45bobo$46b2o$30b2o$29b2o30bo$31bo27b
obo$60b2o$43b3o$44b3o$56b2o$56bo$57b3o$59bo5$51b2o$51b2o$37b2o$37b2o15b
2o$54bobo$56bo$37b3o16b2o$32b2o2bob2o11b2o$32b2o2b2o12b4o$36b2o11bobo
2bo$49b2o2bobo$54bobo$56b2o$55b3o$54bobo$54b2o!

Here is guntrue_855 (4464 -> 3916)

Code: Select all

x = 89, y = 44, rule = B3/S23
71bo$69b3o$28b2o38bo$27bo2bo5b2o30b2o$27bo8bo5b2o19b2o$27bo2bo6b3obob
o22bo$27b2o10bobo20bo2b2o11bo$26b2obo10bobo6b2o3b2o5b3o12b3o$25bobob2o
2bobo5bo7b2o4bo19bo$24bobo3b2o4bo18bobo17b2o$24bo3bo3bo3bo19b2o$25b3o
2b6o31b3o$27bobobo32b2o$27bo2bo20b2o11bobo5b3o$15bo6bo5b2o17bo6b3o7bo
bo5bo2bo$14b2o6b2o22bo3bob5o8bo6bo3bo$13b3o6b3o21bo2bo3bob2o19bo$14b2o
6b2o17b3o7bo4bob2o5bo6bo3bo$15bo6bo17bo2bo6bo5bo2bo5bo6bo2bo$32bobo4b
o3bo6bo5b2obo4bo7b3o$32b2o5bo19b2obo3bo2bo$17bo2bo12bo5bo3bo6bo8b5obo
3bo$15b3o2b3o17bo2bo5bobo7b3o6bo$14bo8bo17b3o5bobo11b2o$15b3o2b3o27b2o
$46b3o31b5o$11bo46b2o19bo5bo$11b3o25b2o17bobo16b3o5b3o$14bo25bo19bo4b
2o5bo3bo11bo$13b2o22b3o12b3o5b2o3b2o4bobo3b4obob3obo$37bo11b2o2bo15bo
3bo7b3o3bo$4b2o43bo19b3o4bob2o5bo$3bobo45b2o14b2o4bo2b2obobobob2o$3bo
42b2o18bo2bo3bo6bo2bobo$2obo7bo35bo18b2obobo9b2o2bo$bobob2o2b3o32b3o22b
o15b2o$bobob2o2b2o33bo24b2o$2obo7bo$o2b4o3bo10b2o$b2o3bo3bo10bobo$3b2o
18bo$3bo13bo5b2o$5bo12bo$4b2o10b3o!

EDIT 3: Here is a reduction to guntrue_1225 using a different SW-2 (6305 -> 6016)

Code: Select all

x = 93, y = 64, rule = B3/S23
38b2o11bo$38b2o10bobo$50bobo2b2o3bo$49b2ob2o2bo2bobo$53bobo3bobo12b2o
$49b2obo2b4obo13bo$49b2obobo3bo13bobo$53bobo3bo12b2o$54bobo3bo$55bo3b
2o$87b2o$87b2o2$46b2o$46b2o9b2o$31b2o23b2o$30bo2bo24bo3b2o22b2o$29bob
2o28b2ob2o19bo2bo2b2o$29bo31b2o2bo22b2ob2o$28b2o31bo3bo17bo3b2o$43b2o
16bob2o17bo4bo$7b2o3b2o29bo18bo19b3o$7bobobobo30b3o7b2o15b2o$9bobo34b
o7b2o2b2o11b2o$4b2o2bo3bo46bo$3bobo2bobobo39b7o$2bo2bob2obo40bo$3b3o2b
ob2o4b2o20b2o11b2o2b2o7bo$6b2o2b2o5bo20b2o15b2o7b3o$5bo2bob2o5bobo6b3o
19bo18bo$5b2o2b2o7b2o3bo4bo17b2obo16b2o$22b2o3bo17bo3bo31b2o$21b2o22b
o2b2o31bo$45b2ob2o28b2obo$9b2o36b2o3bo24bo2bo$2o6bo2bo6b2o33b2o23b2o$
bo7b2o7bo5b2o26b2o9b2o$bobo12bobo5b2o37b2o$2b2o12b2o3$19bo21bo8b2o3bo
$19b3o19bo8bo3bobo$22bo18bo9bo3bobo$21b2o29bo3bobob2o$50bob4o2bob2o$40b
2o7bobo3bobo$40b2o7bobo2bo2b2ob2o$8bo41bo3b2o2bobo$7bobo48bobo10b2o$7b
obo49bo11b2o$8bo22b2o$12b2o10b2o5bobo$12bobo9b2o7bo$14bo18b2o$14b2o$20b
o$19bobob2o$19bobobobo$18b2obobobo2bo$19bo2b2ob4o$10bo6bobo4bo$11bo5b
2o5bobo$9b3o13b2o!

Posted: **December 17th, 2025, 2:09 am**

WhiteHawk wrote: December 16th, 2025, 2:36 pm Here is p1026 too (3968 -> 3619)

Code: Select all

x = 77, y = 47, rule = B3/S23
23b2o2bo15b2obo$22bob4o14bobob3o2b3o5b3o4b2o$22bo19b3o2b2o4bob2o2b2o4b
ob3o$20b2ob7o10b2o3bobo8b3o2bo3bo2bobo$18bo2bobo6bo8bo2b5o9bobob2o2b2o
3b2o$18b2o3bob2o2b2o9bo6b4o6b2o4b2o$22b2ob2o10b4ob5o3b2ob3o3b2obobo4b
2o$36bo4bo5b2o2b2ob2o2bo2bobob2o3bo$37b3obob3obo3bo4b4obobobo2bo$39bo
bo2bo2bo3bo2b2o4b4o2bob2o$23bo18bo3bo6b2obo2bo4bobobo2bo$22bobo9b2o3b
o3b3o9b6obo4bo2b2o$22bobo9bo6b2o19bo5bobo$7b2o14bo8bobo2bobo4b4o14bob
4o2bo$7bobo22b2o3bo2b4o3bo15bo6b2o$10bo2b2o23b3o3bo20bo$8b2obo2bo27bo
bo8bobo8b2o$7bobob2o21b2o2b2o2b2o12bo$8bo25bo2bobo18bo$b2o32b3o18b3o$
2bo26b2o7bo15bo2bo$2bobo9b2o6b2o4b2o7b2o16b2o$3b2o9b2o7bo6bo11bo12b2o
5bo$20b3o19bobo11bo2bo2b2o$20bo21b2o13b2o2bo2bo$58bo5b2o$11b2o4b2o45b
2o$11bobo3bobo43bo2bo8b2o$12bo6bo27b2o13b3o10b2o$19b2o17bo8bobo12bo$37b
obo9bo14bo$2o35bobo9b2o3bo10bobo$o2bo34bo15b3o$b3o53bo$54b2o2bo13bo$b
3o3b2o43bo2b2o14bobo$obo4b2o28b2ob2o10b2o4bob6obobo$o3bo28b2o3bob2o2b
2o12b2obo2bobo2bo2b2o$b3obo27bo2bobo6bo9b2o2b2o4b2o4bo3bo$3bobo29b2ob
7o9bo2b3ob4o2bo4b4o$4bo32bo17bo5bo3bo2bo$37bob4o13b4ob2ob3ob2o4b2o$38b
2o2bo15bo2b2o2bo3b3o2bo$60bo4b3o4bobo$24bo34b2ob3o4b2o2bo$25bo33bo2bo
2bobobob2o$23b3o34b2o2b2ob2o!

Old design

Code: Select all

x = 62, y = 64, rule = B3/S23
2b2o$2b2o2$2bo$bobo$bo2bo2b2o$5bob2o12b4o$3b2o15bo4bo$19bobo3bo$2o16b
obo3bo$bo16bo$bobo14bo$2b2o14bo2bo$19b2o$5b2o$5b2o4$52bo2b2o$52b4obo$
57bo$50b7ob2o$49bo6bobo2bo$10b2o37b2o2b2obo3b2o$10bo42b2ob2o$11b3o$13b
o$53b2o$53b2ob2o$44b2o6b2obo$45bo$45bobo$46b2o$30b2o$29b2o30bo$31bo27b
obo$60b2o$43b3o$44b3o$56b2o$56bo$57b3o$59bo5$51b2o$51b2o$37b2o$37b2o15b
2o$54bobo$56bo$37b3o16b2o$32b2o2bob2o11b2o$32b2o2b2o12b4o$36b2o11bobo
2bo$49b2o2bobo$54bobo$56b2o$55b3o$54bobo$54b2o!

Once again, always remember that the Quinti-Snark without an eater is a Sexti-Snark: (3619 → 2961)
(tub on the left for anti-bounding-box-glitch)

Code: Select all

x = 63, y = 47, rule = B3/S23
8bo4bo15b2obo5bo7bo$7bobo2bobo13bo3bobo3b3o4bobo4b2o$7bob4obo13bobo8b
4o8bo3bo$6b2o6b2o10b2o5b2o9bo2bo3bobo2bo$5bo3b4o3bo8bo2b4o3bo6bo3b4obo
3b2o$4bob2o6b2obo7b2o6b5o2b5o3bo$bo2bobo8bobo12b3o6bob3ob4o6b2o$obobo
2b8o2b2o11bo2b2o12bobob2o3bo$bo2bobo2b4o2bobo6bo8bo2b2obo2b4o3bobo2bo$
4bobo8bobo5bobo5bobo4b3o6bobo2bob2o$5bo10bo6b2obo3bobo6bo11b2obo2bo$
24bo2bobobo8b8obo3b2ob2o$10b2o12b4obo12b4o2bo2bo2bobo$9bo2bo6b2o9b4o
14bob4o2bo$10b2o7bo6b4o3bo15bo6b2o$17bobo5b2o3bo20bo$17b2o3bobob3obo
19b2o$6b2o14b2obo2b2o$5bo2bo16bo$6b2o12bo4b2o17bo$20b3o20bobo$23bo22bo
$22b2o21b2o$45bo2bo$26bo17bo2bo$25bo20b2o$9bo15b3o18bo$8bobo36bobo11b
2o$8bobo37bo12b2o$9bo22b2o$13b2o10b2o5bobo$13bobo9b2o7bo5bo$15bo18b2o
4b3o$15b2o26bo$40b2obo14bo$38bo2b3obob4o7bo$38b2o3b2ob7obobo2bo$22b2ob
2o16b2o8b2obobo$18b2o3bob2o2b2o10b2o9b2o3bo3bo$18bo2bobo6bo9bo2b3ob4o
2bo4b4o$20b2ob7o11bo12b2o$22bo19b4o3b2ob3o5b2o$22bob4o16bo3b2o5b3o2bo$
23b2o2bo18bo4b2obo3bobo$15bo29b2ob3o2bob2o2bo$16b2o27bo2bo2bobobob2o$
15b2o29b2o2b2ob2o!

Posted: **December 17th, 2025, 10:18 am**

WhiteHawk wrote: December 16th, 2025, 2:36 pm Challenge: Can guntrue_342 and/or guntrue_684 be reduced?
...
EDIT 2: guntrue 342 reduced (2928 -> 2820)

Code: Select all

x = 60, y = 47, rule = B3/S23
30bob2o$9b2o4b3o5b3o2b3obobo15bo2b2o$7b3obo4b2o2b2obo4b2o2b3o15b4obo$
6bobo2bo3bo2b3o8bobo3b2o18bo$6b2o3b2o2b2obobo9b5o2bo10b7ob2o$12b2o4b2o
6b4o6b2o9bo6bobo2bo$6b2o4bobob2o3b3ob2o3b3o14b2o2b2obo3b2o$6bo3b2obob
o2bo2b2ob2o2b2o2bo18b2ob2o$8bo2bobobob4o4bo3bo8bo$7b2obo2b4o4b2o2bo3b
obo5bobo$5bo2bobobo4bo2bob2o6bobo3bobo12b2o$5b2o2bo4bob6o9bobobo2bo12b
2ob2o$6bobo5bo18bob3o4b2o6b2obo$6bo2b4obo14b4o5bo4bo$5b2o6bo15bo3b4o6b
obo$11bo20bo3b2o6b2o$11b2o7bo11bobo3bobo$19bob2o10b2o2bob2o18bo$19bo2b
o14bo19bobo$13bo5bo16b2o4bo15b2o$13b2ob2o3bo10bo7b3o$12bobo4b2o12bo5b
o$18bo12b3o5b2o13b2o$15b3obo34bo$13bob3o37b3o$14bo42bo$12b2o4bobo$2o9b
o3b2ob2o5b2ob2o$2o11bo5bo4bobob2o$10bo2bo10bo$10b2obo9b2o11b2o$12bo9b
o5bo2bo4b2o$20b3o5b4o$19bo5bo$4bo13bo2b9o11bo$3bobo14b2o7bo7b2obobo$7b
obob6obo5b4o8bobobobo$3b2o2bo2bobo2bob2o5bo2b2o4bo2bobobob2o$bo3bo4b2o
4b2o2b2o11b4ob2o2bo$b4o4bo2b4ob3o2bo14bo4bo$8bo2bo3bo5bo11b2o2bob3o$b
2o4b2ob3ob2ob4o12b2o3b2o$2bo2b3o3bo2b2o2bo$2bobo4b3o4bo$3bo2b2o4b3ob2o
$4b2obobobo2bo2bo$8b2ob2o2b2o!

It can be reduced a little more (2820 -> 2773):

Code: Select all

x = 59, y = 47, rule = B3/S23
16bo7bo4bobobo2b2o$10bo5bo7bo4bo2bobo2bo$8b2obo4bo4bo2bo3bo4b2obo12bo
2b2o$6bobo2bo3b2o2b2obo5bo2bo3bo13b4obo$6b2o2bob2o2b3obo9bob3o19bo$18b
o3bo3b4o17b7ob2o$6b2o5bo2b2o8bo3b3o13bo6bobo2bo$6bo3b2obobo5b2obo3b2o
2bo5bo7b2o2b2obo3b2o$8bo2bobo2bob2o2b2obo3bobo5bobo10b2ob2o$7b2obo3bo
3b2o2bo2bo3bob4o2bobo$5bo4b3o2bob4o3bo5bo3bo3bo$5b2obo2b2ob3o4b2o8b2o
17b2o$6bobo2bo2bo18b5o12b2ob2o$6bo2b4obo3b2o9b4o8b2o6b2obo$5b2o6bo15bo
3b6o3bo$11bo20bo9bobo$11b2o4bobo12bob3o2bo3b2o$17b2o14b2ob4o$16b2o2b3o
14bo20bo$13bo3b3o4bo6bo10bo13bobo$12bobo2b4o11bo7b3o14b2o$12bo4b2o4b2o
5b3o6bo$17b2obo18b2o$13b2o2bo35b2o$15bo2b2o33bo$12bob2o38b3o$8b2o4b2o
4bo35bo$2o10b4o2bobo2bob2ob2o$2o6bo4b3o3bo3b2obob2o$10b3o2b2o$14b2o20b
2o$13bobo6bo5bo2bo4b2o$20b5o3b4o$19bo5bo$13b2o4bob3ob5o11bo$3b3o11bo3b
o2bo4bo7b2obobo$3b2o3bob2o4bo7bobo9bobobobo$4bobobo3b4ob2o6b2o6bo2bobo
bob2o$bo3bo4bo2b2o2bo2b2o11b4ob2o2bo$b4o4b2o2b2o3b2o2bo14bo4bo$7bo2b2o
4bo4bo11b2o2bob3o$b2o6bo2b3o2b4o12b2o3b2o$2bo2b3o5b2o3bo$2bobo3b4o4bo$
3bo2b2obo2b3ob2o$4b2obobobo2bo2bo$8b2ob2o2b2o!

Also guntrue_996 again (3318 -> 3108):

Code: Select all

x = 71, y = 42, rule = B3/S23
5bo2bo3b2o52b2o$5b6o2bo51bobo$3b2o6b2o32b2o18bo$2bo3b4o3b3o29bo18b2o$b
ob2o6b2o2bo7bo22bo$bobo8bobo8b3o19b2o17b4o$2o2b8o2b2o10bo37bo2bo$bobo
2b4o2bo4bo7b2o39bo$bobo8bob3obo48b3o$2bo10bo4bo50bo$14b5obo$7b2o10b2o
21b2o6b2o4b3o$6bo2bo6b2o24b2o4b2ob2o16b2o$7b2o7bo31bo8bo7b2obobo$14bob
o31bo4bobobo7b2obo$14b2o33bo8bo10bo$3b2o46b3o4bo6b2ob2o$2bo2bo46bobo4b
o6bobo$3b2o50bo3bo6bobo$56b4o7bo3$41bo7b4o$40bobo6bo3bo$40bobo6bo4bobo
$6bo21b3o7b3ob2o6bo4b3o$5bobo19bo3bo5bo12bo8bo$5bobo19bo3bo6b3ob2o7bob
obo4bo2b2o$6bo18b2o5b2o6bob2o7bo8bo2b2o$10b2o12bo4bo4bo21b2ob2o$10bobo
11bo3bobo19b3o4b2o$12bo11bob2obo$12b2o17b2o3bo3bo$31bo2b2obobobo$18b2o
7b4o6bobo2bo$17bobo6bo2bo7bo2b2o2bo$17bo7bo2bo9b2o2b3o$16b2o4b2obobo
12bo$21bobobobobo10b2ob2o$9bo11bo4bobobo10bobo$10bo11b3obobobo10bobo$
8b3o13b2o3bo12bo!

Posted: **December 19th, 2025, 3:02 am**

guntrue_235 reduction (4420 -> 4161)

Code: Select all

x = 73, y = 57, rule = B3/S23
35bo11b2o$34bobo10b2o$26bo3b2o2bobo$25bobo2bo2b2ob2o$25bobo3bobo$26bo
b4o2bob2o$28bo3bobob2o$27bo3bobo$26bo3bobo$26b2o3bo$6b2o4bo28bobo$3b2o
2bo4b3o24bo2b2o$b3ob2o8bo22b3o$o13b2o$b3ob2o$3bob2o47b2o$53bo2bo$54b2o
bo2b2o$57bo2bobo$5b2o50b3o2b3o$5b2o35b2o16b2o3bo2b2o$43bo15bo3b2obo2b
o$40b3o16bob2obob2obob2o$27b2o11bo19bo3bo4bob2o$5b2o20bo33b2ob2obobo$
5bo12b2o8b3o33bo4bo$3bobo12bo11bo33bobo2bob2o$b3obob2o10b3o41b2obob2o
bo$o5bo2bo11bo29bo11bo2bo5bo$bob2obob2o41b3o10b2obob3o$2obo2bobo33bo11b
o12bobo$3bo4bo33b3o8b2o12bo$3bobob2ob2o33bo20b2o$2obo4bo3bo19bo11b2o$
2obob2obob2obo16b3o$3bo2bob2o3bo15bo$3b2o2bo3b2o16b2o35b2o$8b3o2b3o50b
2o$10bobo2bo$11b2o2bob2o$16bo2bo$17b2o47b2obo$66b2ob3o$8b2o47b2o13bo$
7bobo22b3o22bo8b2ob3o$7bo7b2o12b2o2bo24b3o4bo2b2o$8b4o3bo13bobo28bo4b
2o$2b2o2bobo3bo4bo23bo3b2o$2bo2bobo3b2o3b2o22bobo3bo$3bobo6b2obo2b2o19b
obo3bo$2b2obo7bobo2bo16b2obobo3bo$5bo12b2ob2o12b2obo2b4obo$5bob2o3b2o
bo2bo20bobo3bobo$6bo2bobobobo2b2o15b2ob2o2bo2bobo$4bobo2b2obo3b2o12bo
5bobo2b2o3bo$4b2o6bob2o2b4o9bo4bobo$12b2obo2bo2bo7b3o5bo!

EDIT: Reduced again to 4047 cells with some stator reduction:

Code: Select all

x = 71, y = 57, rule = B3/S23
34bo11b2o$33bobo10b2o$25bo3b2o2bobo$24bobo2bo2b2ob2o$24bobo3bobo$25bo
b4o2bob2o$27bo3bobob2o$26bo3bobo$25bo3bobo$3bo21b2o3bo$2bobo6bo28bobo
$2bobo6b3o24bo2b2o$b2ob2o8bo22b3o$13b2o$b2ob2o$2bob2o47b2o$o51bo2bo12b
2o$2o51b2obo2b2o7bo$56bo2bobo7bo$4b2o50b3o2b3o4b2o$4b2o35b2o16b2o3bo2b
o$42bo15bo3b2obo2b2o$39b3o16bob2obob2obo$26b2o11bo19bo3bo4bo$4b2o20bo
33b2ob2obob2o$o3bo12b2o8b3o33bo4bo$3obo12bo11bo33bobo2bo$3b2ob2o10b3o
41b2obob2obo$2o3bo2bo11bo29bo11bo2bo3b2o$ob2obob2o41b3o10b2ob2o$2bo2b
obo33bo11bo12bob3o$2bo4bo33b3o8b2o12bo3bo$b2obob2ob2o33bo20b2o$2bo4bo
3bo19bo11b2o$2bob2obob2obo16b3o$b2o2bob2o3bo15bo$3bo2bo3b2o16b2o35b2o
$b2o4b3o2b3o50b2o$bo7bobo2bo$2bo7b2o2bob2o51b2o$b2o12bo2bo51bo$16b2o47b
2obo$65b2ob2o$7b2o47b2o$6bobo22b3o22bo8b2ob2o$6bo7b2o12b2o2bo24b3o6bo
bo$7b4o3bo13bobo28bo6bobo$b2o2bobo3bo4bo23bo3b2o21bo$bo2bobo3b2o3b2o22b
obo3bo$2bobo6b2obo2b2o19bobo3bo$b2obo7bobo2bo16b2obobo3bo$4bo12b2ob2o
12b2obo2b4obo$4bob2o3b2obo2bo20bobo3bobo$5bo2bobobobo2b2o15b2ob2o2bo2b
obo$3bobo2b2obo3b2o12bo5bobo2b2o3bo$3b2o6bob2o2b4o9bo4bobo$11b2obo2bo
2bo7b3o5bo!

Posted: **December 19th, 2025, 2:03 pm**

Period1GliderGun wrote: December 19th, 2025, 3:02 am guntrue_235 reduction (4420 -> 4161)
Code: Select all
EDIT: Reduced again to 4047 cells with some stator reduction:
Code: Select all

guntrue_705 also reduced (5208 -> 5041)

Code: Select all

x = 71, y = 71, rule = B3/S23
34bo11b2o$33bobo10b2o$25bo3b2o2bobo$24bobo2bo2b2ob2o$24bobo3bobo$25bo
b4o2bob2o$27bo3bobob2o$26bo3bobo$25bo3bobo$3bo21b2o3bo$2bobo6bo$2bobo
6b3o$b2ob2o8bo$13b2o23b2o$b2ob2o21bo10b2o$2bob2o21b2o24b2o$o21b2o2bob
o23bo2bo12b2o$2o19bobo29b2obo2b2o7bo$21bo34bo2bobo7bo$4b2o15b2obo31b3o
2b3o4b2o$4b2o17b2o16b2o16b2o3bo2bo$42bo15bo3b2obo2b2o$39b3o16bob2obob
2obo$26b2o11bo19bo3bo2bobo$4b2o20bo33bo2b2o3b2o$o3bo12b2o8b3o33bobo2b
o$3obo12bo11bo33bo2bobo$3b2ob2o10b3o41b2obob2obo$2o3bo2bo11bo29bo11bo
2bo3b2o$ob2obob2o41b3o10b2ob2o$2bobo2bo33bo11bo12bob3o$2bo2bobo33b3o8b
2o12bo3bo$b2o3b2o2bo33bo20b2o$2bobo2bo3bo19bo11b2o$2bob2obob2obo16b3o
$b2o2bob2o3bo15bo$3bo2bo3b2o16b2o16b2o17b2o$b2o4b3o2b3o31bob2o15b2o$b
o7bobo2bo34bo$2bo7b2o2bob2o29bobo19b2o$b2o12bo2bo23bobo2b2o21bo$16b2o
24b2o21b2obo$31b2o10bo21b2ob2o$31b2o23b2o$13b2o41bo8b2ob2o$13bobo41b3o
6bobo$16bo42bo6bobo$10bo3b2obo22bo3b2o21bo$9bo5bobo21bobo3bo$9bo3b3ob
2o19bobo3bo$10bo2b2obo2bo14b2obobo3bo$16b3o15b2obo2b4obo$10bo2b2obo2b
o18bobo3bobo$9bo3b3ob2o15b2ob2o2bo2bobo$9bo5bobo17bobo2b2o3bo$10bo3b2o
bo17bobo$16bo19bo$13bobo$13b2o29b2o3bo2bo3b2o$44b5o4b5o$44b2o3bo2bo3b
2o4$47b2o4b2o$46bo8bo$45bo2bo4bo2bo$46bo8bo$43bo3b2o4b2o$44bo$42b3o!

guntrue_295 in an unrelated reduction (2478 -> 2457), since in this case flipping the p59 does not impact the bounding box

Code: Select all

x = 62, y = 39, rule = B3/S23
6b2o5b2o2b2ob2o31bo$6bo2b2obo2bo2bob2o30bobo$7b2obob2ob2obo33bob3o$3b
2o3bobo2bobo2bob2o27b2obo4bo$o2bo2bo2bob3obob2o2bo27bobobobobo$3o2b2o
bo3bo2b2o2b2o30bobob2o$3b2o2b5o5b3o19b2o9bobo$2bo2bo2b6o4b2o19b2o10bo
$3b2o7b2o$43bobo$42bo3bo13b2o$9b2o32bob5o10b2o$2o7b2o7b2o2bo23b2o2bo$
bo16bo3b3o8b2obo11b2o$bobo12bobo6bo7bob2o$2b2o4b2o6b2o6b2o$7bo2bo17bo
$7bo2bo17b2o18bo$8b2o18b2o8bo9bo$22b2o5b2o6bobo$21bo3b5o7bo2bo$22b8o5b
5o$23b5o6bob2o$33b2o$26b2o3b2obob2o14b2o$8bo17bo2b6ob2o3b2obo7bo$7bob
o9b2o5bo2b3o3bo5bob2o8b3o$7bobo9bobo5bo2b5o20bo$8bo10bo12bo$12b2o$12b
obo$14bo2b2o$14bobobo7bo10b2o$13b2obo8bobo9b2o$16bo4b2obobo$16b2o2bob
obobobo$8bo11bo4bobobo$9bo11b3obobobo$7b3o13b2o3bo!

EDIT 2: Not a reduction, but an equivalent bounding box solution to guntrue_885

Code: Select all

x = 76, y = 43, rule = B3/S23
6b2o5b2o2b2ob2o$6bo2b2obo2bo2bob2o$7b2obob2ob2obo$3b2o3bobo4bo2bob2o$
o2bo2bob4obobob2o2bo16bo$3o2b2o6b3o4bo16bobo$3b2o8bo2b2o17b3obo$2bo2b
obo5bo3bobo14bo4bob2o$3b2o4b2o2bo20bobobobobo$29b2o4b2obobo$30bo8bobo
9b2o$9b2o19bobo7bo9bo2bo$2o6bo2bo6b2o11b2o20bo$bo7b2o7bo31bo2bo$bobo12b
obo24bo5b2ob2o$2b2o12b2o24bo5bo3bo$43bo3bo3bo5b2o10bo$44b3o8bo2bo8b3o
$19bo25bo9b2o9bo$19b3o8bo9bo3bo3bo17b2o$22bo5b2o9b2o2b2ob2o$21b2o6b2o
5b10o$35bob4o3bo8bo$35b2o3bo3bo7bobo$41b2o8bo2bo$8bo43b2o$7bobo52bobo
$7bobo51bobobo$8bo22b2o5b2o25b2o$12b2o10b2o5bobobo3bo9b2o8bo5bo2bo$12b
obo9b2o7bob4o8bo2bo7bob2o6bo$14bo18bo13b2o9bo9b2o$14b2o18b3o21bo5b2o8b
2o$36bo26bo2bo7b2o$66bo2$21b2ob2o27b2o9bobo$17b2o3bob2o2b2o23b2o9b2o2b
o$17bo2bobo6bo35bo3bo$19b2ob7o34bobob2obo$12bo8bo40bobobo4bo$13bo7bob
4o35bobobob3o$11b3o8b2o2bo36bo3b2o!

However, it does lead to a reduction of guntrue_1062 (3822 -> 3311)

Code: Select all

x = 77, y = 43, rule = B3/S23
8bo2bo3b2o$8b6o2bo3b2o$6b2o6b2o4bo$5bo2bob2obo2b3obo$4bob2o2b2o2b2o3b
o19bo$4bobo2b4o2bobo20bobo$3b2ob3o4b3ob2o17b3obo$4bobo8bobo17bo4bob2o
$4bobo3b2o3bobo17bobobobobo$5bo10bo13b2o4b2obobo$31bo8bobo9b2o$10b2o19b
obo7bo9bo2bo$9bo2bo6b2o11b2o20bo$10b2o7bo31bo2bo$17bobo24bo5b2ob2o$17b
2o24bo5bo3bo$6b2o36bo3bo3bo5b2o10bo$5bo2bo36b3o8bo2bo8b3o$6b2o12bo25b
o9b2o9bo$20b3o8bo9bo3bo3bo17b2o$23bo5b2o9b2o2b2ob2o$22b2o6b2o5b10o$36b
ob4o3bo8bo$36b2o3bo3bo7bobo$42b2o8bo2bo$9bo43b2o$8bobo52bobo$8bobo51b
obobo$9bo22b2o5b2o25b2o$13b2o10b2o5bobo5bo9b2o8bo5bo2bo$13bobo9b2o7bo
2b3o8bo2bo7bob2o6bo$15bo18bobo11b2o9bo9b2o$15b2o16b2ob2o21bo5b2o8b2o$
64bo2bo7b2o$67bo2$22b2ob2o27b2o9bobo$18b2o3bob2o2b2o23b2o9b2o2bo$18bo
2bobo6bo35bo3bo$20b2ob7o34bobob2obo$13bo8bo40bobobo4bo$14bo7bob4o35bo
bobob3o$12b3o8b2o2bo36bo3b2o!

EDIT 3: Is this the smallest weld possible between these two eaters?

Code: Select all

x = 9, y = 22, rule = LifeHistory
2A5.2D$A.A5.D$2.A2.3D$2.2A.D5$2E5.2C$E.E5.C$2.E2.3C$2.EDAD$3.A.A$4.A3$
2A5.2A$A.A5.A$2.A2.3A$2.A.A$3.A.A$4.A!

ConwayLife.com

Execution of Old Guns by Variable-Speed Firing Squad

Re: Execution of Old Guns by Variable-Speed Firing Squad

Re: Execution of Old Guns by Variable-Speed Firing Squad

Re: Execution of Old Guns by Variable-Speed Firing Squad

Re: Execution of Old Guns by Variable-Speed Firing Squad

Re: Execution of Old Guns by Variable-Speed Firing Squad

Re: Execution of Old Guns by Variable-Speed Firing Squad

Re: Execution of Old Guns by Variable-Speed Firing Squad

Re: Execution of Old Guns by Variable-Speed Firing Squad

Re: Execution of Old Guns by Variable-Speed Firing Squad

Re: Execution of Old Guns by Variable-Speed Firing Squad

Re: Execution of Old Guns by Variable-Speed Firing Squad

Re: Execution of Old Guns by Variable-Speed Firing Squad

Re: Execution of Old Guns by Variable-Speed Firing Squad

Re: Execution of Old Guns by Variable-Speed Firing Squad

Re: Execution of Old Guns by Variable-Speed Firing Squad

Re: Execution of Old Guns by Variable-Speed Firing Squad

Re: Execution of Old Guns by Variable-Speed Firing Squad

Re: Execution of Old Guns by Variable-Speed Firing Squad

Re: Execution of Old Guns by Variable-Speed Firing Squad

Re: Execution of Old Guns by Variable-Speed Firing Squad

Re: Execution of Old Guns by Variable-Speed Firing Squad

Re: Execution of Old Guns by Variable-Speed Firing Squad

Re: Execution of Old Guns by Variable-Speed Firing Squad

Re: Execution of Old Guns by Variable-Speed Firing Squad

Re: Execution of Old Guns by Variable-Speed Firing Squad