p20 gun

[Sokwe]

Here is a true-period p20 gun based on Noam Elkies' p24 gun:

Code: Select all

x = 102, y = 74, rule = B3/S23
61bo$60b3o$60b3o$60bobo$60b3o$59b5o3b2o$58bo5bo3bo2bo$58bo5b3obobobo$
55b2obob2o3bob2o2bo$56bobob2o2bo3bo$56bo2bobo2b4o$57bobob2o2bo2b3o$56b
2obob2o4bo3bo$58bo4b2o3b3o$58bob5obobo$59bobo2b4o2$60bob2o$59bo4b3o3b
2o$59b2o2b6o2bo$62b2o5b2o$54b2ob5obo4bo$52bo2bobo4bobobobo$52b2o4bo3bo
4bo$56b2obo2b3o2bobo2b2o$55bo3bob2o5bobo2bo$55b2ob2o2bob2o4b2o$58b4o7b
o$55b2o5b2o2bo2bo$55bob2o8bobobo$52b2obob3ob4obobobobo$52bobo9bobobobo
bo$54bobo4b2ob2obo2bob2o$52bob2o4bo6b2obo$52b2o3bob2o5bobobo$50b2o3b2o
bobo3bobo3b2o$51bob2obo3b4o5bo$49bo2bo3bob2obo2b4obo$49b2obo3b2ob2o3b
2o3bob2o$50bob2o6b2o4b2obob2o$50bo5bo2bo3b3o3bo$51b6obobo7b2o$56bob2ob
o2b4o2b2o$53b2ob2o2bobobo3b2o2bo$52bo9bo3bo4bo6bo6b2o$26bo2bobo20bo2b
2o4bobo2bob3o6bobo4bo2bo2bo4b2o$9b2o3bo11b4ob3o11b2o4b2obo2bo7bob2o7bo
2bo4bobo3b3o2bobo2b2o$8bo2bobobo3b2o3b2o8bo3bobo4bo2bo3bob2o2bo2bob2o
11b4ob2obo2b3o3bobo2bo2bo$8bobob2o2bo2b2o2bo3b2ob4obobob2o5b3o2bo2bo4b
o2b2obo15bobobobo2bo2bob2obobo$5b2obobo3bobo7b3obobo4bobo13b2o3b3obo3b
2o12b3o3b2o4bo2bo4bob2o$5bobo2bob2obob7o2bobo3b4ob6ob7o6b4o3b2o11bo6bo
2bo3bo3b2obo$3bobo7bobobo5bo2bo15bobo5bo5bo8bo9b3o2bobo2b2o2bobobo4bo$
2bobobobob2ob2o4bobo4b2ob2o2bo5b3o3bobo6b2o5b2obo10b2obobob2o2bobob2ob
5o$2bobob4o4bobo2bobo3bob3obobobob2o7bobo14bo10bo4bo4b2o2bo3bo$obo2bo
5b4ob3o2b2ob3o3b2obo4bo5bobo11b2o7bo5bo3b2obobobo3bo3bo2bo$2obobob4o4b
o3b2o6bo2bo2bob2ob2o2bo6b2o14bo2bo4bo3bo2b2obo2bob2o3b3o$3bo2bobo2b3o
2b2o3b4ob2o3b3o2bobo2bobobo3b2o7b3o2b3ob3o3bo4bo4bob2o$3b2obo3bo2b2obo
4bo2bobo7bo2bo2b2obobobo2bo13bobobo4bo3bo2b2obo2bob2o3b3o$b2o2bo2bobo
5bo7bobo6bo4b2o2bob2o4bo3b3o5b6o5bo3b2obobobo3bo3bo2bo$o2bobob2ob2o4b
2o5b2ob2o4bob4o2bobo3bobo2bo3b2o5bo3bo7bo4bo4b2o2bo3bo$3o2bo2bobo3b2o
2bob2o2bobo6bo4b2o2bob2o4bo3b3o5bo12b2obobob2o2bobob2ob5o$3b2obo3bo2bo
bob2obo3bobo7bo2bo2b2obobobo2bo15bo8b3o2bobo2b2o2bobobo4bo$2obo2bobo2b
3o3bo3b4ob2o3b3o2bobo2bobobo3b2o8b2o6bo9bo6bo2bo3bo3b2obo$o2bobob4o4bo
3b2o6bo2bo2bob2ob2o2bo6b2o14b3o10b3o3b2o4bo2bo4bob2o$2bo2bo5b4ob3o2b2o
b3o3b2obo4bo5bobo34bobobobo2bo2bob2obobo$b2obob4o4bobo2bobo3bob3obobob
ob2o7bobo8bo2bo15b4ob2obo2b3o3bobo2bo2bo$bo2bobobob2ob2o4bobo4b2ob2o2b
o5b3o3bobo7bo2b2o2bo8bo4bo2bo4bobo3b3o2bobo2b2o$2b2obo7bobobo5bo2bo15b
obo10bo2b2o2bo9bo4bobo4bo2bo2bo4b2o$5bobo2bob2obob7o2bobo3b4ob6ob6o7b
4o9b3o5bo6b2o$5b2obobo3bobo7b3obobo4bobo11bo5bobo2bobo$8bobob2o2bo2b2o
2bo3b2ob4obobob2o5bo8b2o4b2o$8bo2bobobo3b2o3b2o8bo3bobo4bobo28bo$9b2o
3bo11b4ob3o12bo30bo$26bo2bobo43b3o!

[137ben]

The following pseudo-period 20 rotor was found by extrementhusiast awhile ago:

Code: Select all

x = 217, y = 179, rule = B3/S23
187b2o$187bobo$157bo24b2o4b3o12bo$156bobo19b4o2bo4b3o8b4o4bo$156b2obo
7b2o9b3ob2o4b3o8b4o5bo$139bo16b2ob2o6bobo17bobo9bo2bo9b2o$139b2o15b2ob
ob3o6bo16b2o10b4o9b2o$127b2o11b2o14bobo2bo2bo2bo2bo20bo8b4o$126b3o3bo
7b3o14bo4b2o6bo19bo12bo$123bob2o4b4o5b2o25bobo6b2o12b3o$123bo2bo4bo4bo
2b2o26b2o7bobo$123bob2o5bo3bo2bo38bo$126b3o3b2obo18bobo21b2o$127b2o25b
2o5b2o9b2o$155bo4bo2bo2b3o2bo2bo$160b3o2b5o2b3o$140bobo20b9o$141b2o19b
o9bo22b3o$141bo20b2o7b2o22bo12bo$120b3o73bo8b4o$119bo3bo42bo25b2o10b4o
5b2o$118bo5bo39bo2bo24bobo9bo2bo4bo2bo$118b2obob2o25b4o14bo7bo6b3ob2o
4b3o8b4o4bo2bo$149bo3bo10bo3bo6bo7b4o2bo4b3o8b4o3bo$128b2o23bo11b4o6b
3o9b2o4b3o12bo3bo$121bo7bo20bobo39bobo17bobo$120bobo6bobo7b2o51b2o18bo
bo$120bobo7b2o7b2o4bo25bo41bo$121bo14b2o6b5ob2o18bo$135b3o5bo2b2o4bo
17b3o$121b2o13b2o5b2o8bo8b2o46b2o3b2o$121b2o16b2o4bo7bo8b2o46bo5bo$
139b2o12bo$152bo33b3o22bo3bo$150b2o34bo19b2o4b3o$187bo18b2o2$130b2o29b
o$120b2o7bo2bo27bo8b2o9b3o$120b2o6bobobo18b2o7b3o6bo2bo9bo23bo$128bo2b
o19bo21bo7bo5bo6b2o9b3o$127bo15bo5bobo21bo12b4o4bobo7bo3bo3b2o$128bobo
11b2o5b2o5bo16bo11b2obobo3bo8bob3obo2b2o$141b2o12bo6b2o5bo2bo11b3obo2b
o12b5o$140b3o12b3o3bobo5b2o14b2obob2o$141b2o3b2o13bo24b4ob3o$142b2o16b
2o25bo4bobo$129bo7bo5bo31b2o17bo$121bo7b2o4bobo36bo19b2o5b3o$120b3o5bo
bo5b2o35bo12b2o13bo$119b5o39b2o8bo7bo4b2o14bo$118b2o3b2o38b2o8bo8b2o5b
2o6b2o$119b5o22bo27bo4b2o2bo5b3o5b2o$119b5o7bo2bo10bo29b2ob5o6b2o$120b
o2bo5bo2b2o2bo8b3o33bo4b2o$120bo3bo4bo2b2o2bo49b2o$124bo6b4o39bobo$
121b2obo4bobo2bobo4bo16b4o11bo29b3o$123bo5b2o4b2o3bo17bo3bo10bo3bo24bo
3bo$140b3o15bo14b4o24bo5bo$159bo2bo38b2obob2o$120b2o3b2o$120bo5bo9bo8b
o$135bo8b3o7b2o2b3o2b2o20bo$121bo3bo9b3o5b5o6bo2b5o2bo19b2o$108b2o12b
3o30b9o20bobo$107bo2bo41b3o9b3o39b2o$104b2o2bobo20bo20bo2bo7bo2bo4bo
34bo$104bob2obo20bo22b2o9b2o5b2o25b2o7b3o$109bobo18b3o37bobo18bob2o3b
3o8bo$105b3obob3o6b2o65bo2bo3bo5b2obo$104bo4bo4bo6bo21b5o10b2o26b2o2bo
4bo4bo2bo$104b3o2bob3o4b3o5bo17b3o10bobo25b2o5b4o4b2obo$111bo6bo6bo19b
o10bo6b2o4bo14b3o7bo3b3o6b2o$102b5ob2o15b3o28bo2bo2bo2bo2bobo14b2o11b
2o7bobo$102bo3b2o48bo6b3obob2o15b2o21bo$104bo44b2o6bobo6b2ob2o16bo21b
2o$103b2o2bo13bo26bobo7b2o7bob2o$102bo4b3o10bo27bo19bobo$100bo2bobo2bo
11b3o24b2o20bo$100b2obob2obo$103bo4b2ob2o$103b2obo5bo3bo$99b2o6bo7bo$
100bo10bo3b3o$100bobo$101b2o2$105bobo3bo$105bo2bo$105bo2bo$102b2o2b2o$
101bobo10b2o$103bo10bobo$105bo10bo$109bo6b2o$97b2o5bo5bob2o$96bobo5b2o
b2o4bo$98bo9bob2obob2o$47bo20b2o38bo2bobo2bo$46bobo19bo38b3o4bo$46b2ob
o7b2o7bobo23b2o15bo2b2o$6b2o21bo16b2ob2o6bobo6b2o23bobo18bo$7bo21b2o
15b2obob3o6bo32bo15b2o3bo$7bobo7b2o11b2o14bobo2bo2bo2bo2bo46b2ob5o$8b
2o6b3o3bo7b3o14bo4b2o6bo10bo26bo6bo$13bob2o4b4o5b2o25bobo10b3o14b2o7b
3o4b3obo2b3o$13bo2bo4bo4bo2b2o26b2o10b5o12bobo6bo6bo4bo4bo$13bob2o5bo
3bo2bo58bo6b2o6b3obob3o$7bo8b3o3b2obo18bobo58bobo$7b3o7b2o25b2o5b2o9b
2o43bob2obo$10bo34bo4bo2bo2b3o2bo2bo17b2o22bobo2b2o$9b2o39b3o2b5o2b3o
16bobo22bo2bo$30bobo20b9o21bo8b3o12b2o$31b2o19bo9bo6b5o17bo3bo$31bo20b
2o7b2o7b3o$71bo5b2o11bo5bo$56bo19bobo11b2o3b2o$9b2obob2o38bo2bo20bo$9b
o5bo24b4o14bo$10bo3bo24bo3bo10bo3bo21b2o4b2o5bo$11b3o29bo11b4o13b2o6bo
bo2bobo4bob2o$40bobo28bobo8b4o6bo$29b2o42bo6bo2b2o2bo4bo3bo$29b2o4bo
44bo2b2o2bo5bo2bo$26b2o6b5ob2o40bo2bo7b5o$18b2o5b3o5bo2b2o4bo24b2o24b
5o$18b2o6b2o5b2o8bo8b2o12bobo23b2o3b2o$14bo14b2o4bo7bo8b2o14bo14bo9b5o
$15bo13b2o12bo38bo3bobo5b3o$13b3o5b2o19bo39bo3b2o7bo$22bo17b2o20b2o9bo
13bo$22bobo4bo25b2o4bobo9b2o$23b3ob4o24bo7bo5b2o3b2o$25b2obob2o14b2o5b
obo18b3o$8b5o12bo2bob3o11bo2bo5b2o19b2o$3b2o2bob3obo8bo3bobob2o11bo22b
2o5b2o13bo$3b2o3bo3bo7bobo4b4o12bo21bobo5bo12b2obo$9b3o9b2o6bo5bo7bo
21bo19bo$10bo23bo9bo2bo16b2o18bobo2bo5b2o$34b3o9b2o36bo2bo7b2o$52b2o
31b2o$51bobo$9b2o42bo$2b3o4b2o54b2o$bo3bo23b2o33bo$29b2o16b2o14bo12b2o
$o5bo39bobo4b2o8bo7bo4b2o16b2o$2o3b2o41bo4b2o8bo8b2o5b2o13b2o$64bo4b2o
2bo5b3o$65b2ob5o6b2o14bo$3bo33bo33bo4b2o7b2o7bobo$2bobo18b2o10bobo38b
2o7bobo6bobo$2bobo17bobo11b2o26bobo20bo7bo$4bo3bo12b3o4b2o18b4o11bo23b
2o$4bo3b4o8b3o4bo2b4o14bo3bo10bo3bo$bo2bo4b4o8b3o4b2ob3o14bo14b4o25b2o
bob2o$bo2bo4bo2bo9bobo24bo2bo39bo5bo$2b2o5b4o10b2o68bo3bo$8b4o8bo73b3o
$8bo12bo22b2o2b3o2b2o20bo$19b3o10b2o10bo2b5o2bo19b2o$31bobo11b9o20bobo
$33bo8b3o9b3o$42bo2bo7bo2bo4bo$43b2o9b2o5b2o25b2o$37b2o21bobo18bob2o3b
3o$27b2o9bo38bo2bo3bo5b2obo$27b2o9bobo7b2o26b2o2bo4bo4bo2bo$39b2o6bobo
25b2o5b4o4b2obo$13bo32bo6b2o4bo14b3o7bo3b3o$13b4o29bo2bo2bo2bo2bobo14b
2o11b2o$3b2o9b4o10b2o16bo6b3obob2o15b2o$3b2o9bo2bo9bobo17bobo6b2ob2o
16bo$8bo5b4o8b3o4b2ob3o9b2o7bob2o$8bo4b4o8b3o4bo2b4o19bobo$13bo12b3o4b
2o24bo$27bobo$28b2o!

Now, it can be made into a true p20:

Code: Select all

x = 174, y = 175, rule = B3/S23
110b2ob2o3b2o$107b2o2bobobo2bo$106bob2o3bobo3b3o$106bo3b3obob3o3bo$
107b2o3bo3bo3b2o$104b3o2b2o2b3o2b2o2b3o$104bo2b2o2b2o3b2o2b2o2bo$105b
2o3bo3bo3bo3b2o$102b3o2b2ob2ob3ob2ob2o2b3o$101bo3b2obobo7bobob2o3bo$
101bob2ob2o2bob5obo2b2ob2obo$102bo2bo3bobo2bo2bobo3bo2bo$103bobobobobo
5bobobobobo$102b2obobobob2o3b2obobobob2o$101bo2bo4bo3bo2bo2bo4bo2bo$
102bo2b2o3bob2o4bo3b2o2bo$103b2o2b3o4b4ob3o2b2o$105b2o2bob2obo2bobo2b
2o$105bobobo2b2o5bobobo$102b2obo2bobo7bobo2bob2o$102b2obo4bob2o4bo4bob
2o$105bo2b2obobo2b2ob2o2bo$105bobobobo5bobobobo$103bob2o4bo2bo2bo4b2ob
o$102bobo3b2ob7ob2o3bobo$102bobob2obo9bob2obobo$100b2o2b3o4b7o4b3o2b2o
$101bobo6b2o2bo2b2o6bobo$101bob2obo15bob2obo$100b2o3b3o13b3o3b2o$103b
2o2bo2bo7bo2bo2b2o$100b2obo4b2obo5bob2o4bob2o$101bobo2b2o3bo2bo2bo3b2o
2bobo$101bobobo2b4obobob4o2bobobo$102bo2bobo4bobobo4bobo2bo$103b3o3b2o
3bo3b2o3b3o$110b2o2bo2b2o$103b3o2bo3bobobo3bo2b3o$102bo2bob2ob2obobob
2ob2obo2bo$103bobobo2bo2bobo2bo2bobobo$102b2obob2o3bobobo3b2obob2o$
105bobo3b2o3b2o3bobo$105b2o3bo2b3o2bo3b2o$110b3o3b3o$105b2o3bo2bobo2bo
3b2o$102bo2bobob2ob2ob2ob2obobo2b2o$101bobobob2o2bo2bo2bo2b2obobobo$
102bo2bobobo3bobo3bobobobo$105bo5bo5bo5bob2o$104b2o3b2o2b3o2b2o3bo11b
2o$110bob5obo3b2o9b3o2bo$111b7o6b2obo4bo4b2o$124bob4o2bob3o2b2ob2o6b2o
$130bobobo2bobo3bo6bo$121bo3b3o2bobo4bo2b3o9bo$103b2o16bo4bobo3bo5bobo
2b3ob2o2b2o12bo$103bo2b2o14bobo3bob4ob4o2bo3bobobo11bob3o$104b2obo5b3o
7b2o2bo2bo4bo3bo3b2o4bob2o8b2o$108bo3bo3bo6b2obo4b2o3bobo4b2ob2o2bobo
6b2o3b4o$108bo3bo3bo6bobo5bobob2o2bo3bo2b4o2bob2o2bo2b3o4bo$104b2obo4b
o3bo6b2o5bobob2ob4o5bo5bobobo2bo4b2o2b5o$103bo2b2o5b3o5bo4bobo2bo2bob
2o3bobo2bobo3bo5b2ob5o2b2ob3o$103b2o16bo3bo3b2o6bo3bobobob5obo2bo2bob
2o5b5o$120bo4b2obo4bo3bo5bobo3bo2b3obo2b2o7bo$111bo9bob2obo3b2obob2obo
2b3o3bobobo2b2o2b3o2b2ob2o$111bobo2b3o3b4obo3bobob2o4bo5bo6b2o2bo3b2ob
2o$111b2o3bobo9b2obo2bobob2o2b2obo5bo2b2o2b2o3bo2bo$83b2o31b3o8bo3bo2b
obo3b2o2bo4b2o3bo3bo2bobobo2bo$82bo2bo41b2obobo6b2ob2o4bo2b2obo4b2obob
5o$79b2o2bobo20bo21bobob6o6b3o2bo3bo6bobo$79bob2obo21bobo19bo2bo6b6o3b
2o4bobo4bobo3bo$82bobobo19b2o21bobo2b2o2bo5bo2bo6b2o5bo3bobo$80b3obob
3o27b3o11bo3b2o5b3o5bo16bo$47b2obo13bob2o11bo3b2o4bo25b5o21bo6b2o$47bo
b2o13b2obo11b3o4b3o12bo11b9o$82bobobo14bobo8bobo5bobo$48b5o9b5o10b3o2b
o2bo15b2o4b2o5bo5bo5b2o$47bo5bo7bo5bo9bo2bo25bobo2bo3b5o3bo2bobo$46bo
2bobobo7bobobo2bo10bo25bo2bobob2obobobob2obobo2bo$46b6obob2ob2obob6o9b
2ob2o13bo9b3obobo4bo4bobob3o$53bo2bobo2bo15bo2b4o12bobo11b2ob4ob4ob2o$
48b4obo2bobo2bob4o8bo2bo17b2o10b2obo4bobo4bob2o$47bobo4b2o3b2o4bobo7b
2obob2obo2bo21bo3b4o3b4o3bo$47bo2b4o7b4o2bo10bo2bo5bo21b3obo2b3o2bob3o
$46b2ob2o2bo7bo2b2ob2o9b2o2b2o3bo3bo14b3o2b2ob2o3b2ob2o2b3o$48bo7bobo
7bo7b2o7b4o4bobo11bo3b2obobo2bo2bobob2o3bo$48bo3b5ob5o3bo8bo15b2o12bob
o4b2o2b3o2b2o4bobo$46bob3o13b3obo6bobo28bob2o15b2obo$45bobo4b2o2b3o2b
2o4bobo6b2o6bo23bo3b5ob5o3bo$45bo3b2obobo2bo2bobob2o3bo12bo3bo21bo3bo
3bobo3bo3bo$46b3obo3b2o3b2o3bob3o12bo4bo19b2ob2o2bo7bo2b2ob2o$49bo3bo
2b3o2bo3bo15bo5b2o18bo2b4o7b4o2bo$48bo4b3o3b3o4bo14bo25bob2o3b2o3b2o3b
2obo$48b2o3bo2bobo2bo3b2o15bo25b2o2b2o2bobo2b2o2b2o$50bob2ob2ob2ob2obo
11b3o4bo6bo20bobo2bobo2bobo$46b3ob2o2bo2bo2bo2b2ob3o9bo6bo2b2obo14b4o
3bob2ob2obo3b4o$45bo2bobobo3bobo3bobobo2bo7bo13bo14bo2bo3bo7bo3bo2bo$
46bobo5bo5bo5bobo11b4o7b2o14bo5bo7bo5bo$47b2o3b2o2b3o2b2o3b2o11bo3b2o
2b2o19b5o9b5o$53bob5obo9b3o5bo5bo2bo$54b7o12bo6bo2bob2obob2o15bob2o13b
2obo$25b2o6bo38bo15bo2bo15b2obo13bob2o$8bo16bo5b3o5b2o3bo38b4o2bo$7bob
o3bo5b2o6bo2bo5bo2b2o2bobo38b2ob2o$8bo3bobo4bobo4b2o3b6o6bo2bo19b3o18b
o$12bobo6bo3bo2b3o6b6obobo21bo17bo2bo$6b5obob2o4bob2o2bo4bo3bo3bo4bob
2o9bo9bo13bo2bo2b3o$6bo4bobo3bo2bobob2o4bo2b2o2b2obo3b2o10bobo21bobobo
$7bo3bob3o2bob3obo5bob2o6bo2bobo4b2o26b3o4b3o$9b2o3bo6b2obo2bo5bob2o2b
obobobo3b4o3b3o2b3o13bo4b2o3bo$7bo2bo3b3o2bo3bobo2bob2obo3bo3bo3bo3bo
4bo8bo14b3obob3o$6bob2o14bo2bobobo4b3ob3o3b3o3bo9bo17bobobo$2bo3b3ob3o
6b2o2b5obobo2b2obo2bo3b4ob3o2bo12bo2b2o10bob2obo$3o3b2ob2o3b2obobo2bo
3bo4b3obo5b3o4bo3bo7bo6b2o2bo9bobo2b2o$2bo3b2o2bo2bobobo2bobo5bo3bo2bo
4bobobo3bo3b2o5bobo4b5o10bo2bo$6bo4b3o2bo2b2obo2b4ob3obo2bo3bo2b2o2b2o
2b2o4bo3bo19b2o$7b4o3b2o6bobo2bo2bob7o3bo5bo2b3o5bobo$12b2o8b2obobo3b
2obo11b4o2b2o6bo5b5o$9b3obo11bobobo2bobob3o3bobobob2o2bo14b2o2bo$9bo
12b2o2b2ob3o2bobo2b2obobobo3b4o13bo2b2o$22bo9b3o2bo3bo2b6o10bo$24bo6bo
3bobo2bobobo13bo3bo$23b2o6b2ob2o2b3obo2b4obo$36b2o4bo4bob2o5bo7bo$36bo
2b3o9b2o6b3o$38b2o11bo4b2ob3ob2o4b2o$48b2obo2b3obobobob3o2bo$49bobobob
4o3b4obobo2bo$47bobobobo6bo6bobobobo$47b2o2bo4b4ob4o4bo2bo$51b2obo4bob
o4bob2o$56b3o3b3o$51b3o5b3o5b3o$51bo5b2o3b2o5bo$48b2obobo4bobobo4bobob
2o$49bo2b2o2bo2bobo2bo2b2o2bo$48bo2bo4b2obobob2o4bo2bo$49b2o2b2o3bobob
o3b2o2b2o$52b3ob2o2bo2b2ob3o$49b3ob2obo3bo3bob2ob3o$48bo9bobobo9bo$47b
obobob5obobob5obobobo$47bobob3o3bo2bo2bo3b3obobo$46b2obo4b2obo5bob2o4b
ob2o$49b2obo2b2o7b2o2bob2o$46b2o5bo13bo5b2o$47bob5o13b5obo$47bobo2b2o
2b2o2bo2b2o2b2o2bobo$46b2o2b2o3bob7obo3b2o2b2o$48bobo3b2o9b2o3bobo$48b
obobo2bob7obo2bobobo$49bobo3bobo2bo2bobo3bobo$51bo5bo5bo5bo$51bob3ob2o
2bobob3obo$48b2ob3o2bo4b2obo2b3ob2o$48b2obob2obo7bob2obob2o$51bo3bo5b
2o2bo3bo$51bo3bobo2bob2obo3bo$49b2o2bobob4o4bobo2b2o$48bo2b2o3bo4b2obo
3b2o2bo$47bo2bo2b3o2bo2bo3b3o2bo2bo$48b2ob2o2bob2o3b2obo2b2ob2o$49bobo
3bobo5bobo3bobo$48bo2bobobobo2bo2bobobobo2bo$47bob5o2bob5obo2b5obo$47b
o6bobo7bobo6bo$48b4ob2ob2ob3ob2ob2ob4o$54bobo3bo3bobo$50bo3bo2b2o3b2o
2bo3bo$50b3o2b2o2b3o2b2o2b3o$53b2o3bo3bo3b2o$52bo3b3obob3o3bo$53b3o3bo
bo3b2obo$56bo2bobobo2b2o$55b2o3b2ob2o!

[calcyman]

Vastly reduced bounding box, at the expense of slightly reduced glider-constructibility:

Code: Select all

x = 156, y = 109, rule = B3/S23
85b2obo13bob2o$85bob2o13b2obo2$86b5o9b5o$85bo5bo7bo5bo$84bo2bo3bo7bo3b
o2bo$84b4o3bob2ob2obo3b4o$89bobo2bobo2bobo$86b2o2b2o2bobo2b2o2b2o$85bo
b2o3b2o3b2o3b2obo$85bo2b4o7b4o2bo$84b2ob2o2bo7bo2b2ob2o$86bo3bo3bobo3b
o3bo$86bo3b5ob5o3bo$84bob2o15b2obo$83bobo4b2o2b3o2b2o4bobo$83bo3b2obob
o2bo2bobob2o3bo$84b3o2b2ob2o3b2ob2o2b3o$87b3obo2b3o2bob3o$86bo3b4o3b4o
3bo$86b2obo4bobo4bob2o$88b2ob4ob4ob2o$84b3obobo4bo4bobob3o$83bo2bobob
2obobobob2obobo2bo$84bobo2bo3b5o3bo2bob2o$85b2o5bo5bo5bo11b2o$90bobo5b
obo2b2o9b3o2bo$91b9o5b2obo4bo4b2o$93b5o7bob4o2bob3o2b2ob2o6b2o$94b3o
14bobobo2bobo3bo6bo$77b2o5bo21b6o2bo3bo2b3o9bo$46b2obo13bob2o9bo2bo3bo
bo16b4o3bobobob2o2bobo2b3ob2o2b2o12bo$46bob2o13b2obo3b2ob2o2bobo2bobo
2b3o4b3o6bo2b2obobobo3b3obobo2bobobo11bob3o$71bobob2obo3bo2b2o15b2o2b
4o11bob2o3bobob2o8b2o$47b5o9b5o3bo6bobobobo7bobo5bo3b3o2bo5bo3b7obo2bo
2bobo6b2o3b4o$46bo5bo7bo5bo2b2o3b2o2bob2o8bobo5bo3b2o2b2o2b2o2bo3bo2bo
b3ob4o2bob2o2bo2b3o4bo$45bo2bobobo7bobobo2bobo3bo3bo7b2o5bo5bo3b2o3bo
3bobobo4bo2bo3bo5bobo2bobobo2bo2b2o3bo$45b3ob2obob2ob2obob2ob3o2bo2b4o
bob2o2bo2b3o13bo3bo4b3o5bob3o4bo3bo2bobob2o3b2ob2o3b3o$52bo2bobo2bo7bo
bo5b5obo2bo8b3o4bo2b3ob4o3bo2bob2o2bobob5o2b2o6b3ob3o3bo$47b6o2bobo2b
6o2bo2b4o8b2o18bo3b3o3b3ob3o4bobobo2bo14b2obo$46bo3bo2b2o3b2o2bo3bob2o
bo5bo14bo5bo2bo4bo3bo3bo3bo3bob2obo2bobo3bo2b3o3bo2bo$46bo4b2o7b2o4bo
2bo3bo17bo5b3o3b4o3bobobobo2b2obo5bo2bob2o6bo3b2o$45b2ob2o2bo7bo2b2ob
2obo2b2o17b3o2b2ob2o3b2o4bobo2bo6b2obo5bob3obo2b3obo3bo$47bob2o4bobo4b
2obo3bobo2b4o19b3o10b2o3bob2o2b2o2bo4b2obobo2bo3bobo4bo$47bo2b6ob6o2bo
3bo2bobo2bo20bo9b2obo4bo3bo3bo4bo2b2obo4b2obob5o$45bob3o13b3ob2obobob
2ob2o8bo21bobob6o6b3o2bo3bo6bobo$44bobo3b3o2b3o2b3o3bo3bobo2bo2b4o4bo
22bo2bo6b6o3b2o4bobo4bobo3bo$44bo3b2obobo2bo2bobob2o2bob2ob2o2b6o4b3o
21bobo2b2o2bo5bo2bo6b2o5bo3bobo$45b3o5b2o3b2o5b3obo41bo3b2o5b3o5bo16bo
$48bo3bo2b3o2bo3bo4bo52bo6b2o$47bo5b2o3b2o5bo3bobo9bo16bo$47b2o2bo3bob
o3bo2b2o4b2o22b4ob4o$49bo3b3ob3o3bo14b2o3bo4b2o4b2o5b2o4b2o$45b3o2b2o
4bo4b2o2b3o9bo9bobo2bo5bo5bo2bobo$44bo2bobo4bo3bo4bobo2bo8b2o2bo4bo2bo
bo4bo3bo4bobo2bo$45bobo2bo5bo5bo2bobo10b3o6b3o2b2o4bo4b2o2b3o$46b2o4b
2o5b2o4b2o24bo3b3ob3o3bo$52b4ob4o22b2o4b2o2bo3bobo3bo2b2o$56bo12b2o12b
obo3bo5b2o3b2o5bo$24b2o6bo35bobo14bo4bo3bo2b3o2bo3bo$7bo16bo5b3o5b2o3b
o26bo14bob3o5b2o3b2o5b3o$6bobo3bo5b2o6bo2bo5bo2b2o2bobo8b2o3b2o13b6o2b
2ob2obo2b2obobo2bo2bobob2o3bo$7bo3bobo4bobo4b2o3b6o6bo2bo7b3ob3o13b4o
2bo2bobo3bo3b3o2b3o2b3o3bobo$11bobo6bo3bo2b3o6b6obobo8bo3bo5b2o10b2ob
2obobob2ob3o13b3obo$5b5obob2o4bob2o2bo4b2ob2o6bobob2o8b3o5bobo11bo2bob
o2bo3bo2b6ob6o2bo$5bo2bobobo2bo3bo3b2o4bo2b2o3bobo2bo3bo8b3o7bo11b4o2b
obo3bob2o4bobo4b2obo$7bo2bo3b2o2b2o2bo5bob2o2b2obobo2bob2o35b2o2bob2ob
2o2bo7bo2b2ob2o$7b2ob2o3bo2b2o6bo5bo4b2obobo3bob4o29bo3bo2bo4b2o7b2o4b
o$6b2ob2o2b3o2b2o2bobobo3b3o2bob2obob2o3bob2obo6b2o16bo5bob2obo3bo2b2o
3b2o2bo3bo$5bo7b2o2bob3o2bo3bobo5bo3bo4bob2o4bo4bobo9b2o8b4o2bo2b6o2bo
bo2b6o$b5o5b2obo2bo2bob5obobobo3bo6b2o3bo3bo7bo8bo2bob5o5bobo7bo2bobo
2bo$3ob2o2b5ob2o5bo3bobo2bobo3b2obo2bo2bobo4bo12b3o2bo2b2obob4o2bo2b3o
b2obob2ob2obob2ob3o$b5o2b2o4bo2bobobo5bo5b4ob2obobo5b2o17b2o7bo3bo3bob
o2bobobo7bobobo2bo$5bo4b3o2bo2b2obo2b4o2bo3bo2b2obobo5bobo7b3o3bo8b2ob
o2b2o3b2o2bo5bo7bo5bo$6b4o3b2o6bobo2b2ob2o4bobo3b2o4bob2o7b3o3bo7bobob
obo6bo3b5o9b5o$11b2o8b2obo4b2o3bo3bo4bo2bo2b2o6bobobo6b2o2bo3bob2obobo
$8b3obo11bobobo3bo2b4ob4obo3bobo13b3o2bobo2bobo2b2ob2o3bob2o13b2obo$8b
o12b2o2b2ob3o2bobo5bo3bobo4bo16bobo3bo2bo9b2obo13bob2o$21bo9b3o2bo4bob
o2b3o3bo17bo5b2o$23bo6bo3bobo2bobobo13bobobo$22b2o6b2ob2o2b3obo2b4obo
7b5o$35b2o4bo4bob2o5b9o$35bo2b3o9b2o2bobo5bobo$37b2o11bo5bo5bo5b2o$47b
2obo2bo3b5o3bo2bobo$47bo2bobob2obobobob2obobo2bo$48b3obobo4bo4bobob3o$
52b2ob4ob4ob2o$50b2obo4bobo4bob2o$50bo3b4o3b4o3bo$51b3obo2b3o2bob3o$
48b3o2b2ob2o3b2ob2o2b3o$47bo3b2obobo2bo2bobob2o3bo$47bobo4b2o2b3o2b2o
4bobo$48bob2o15b2obo$50bo3b5ob5o3bo$50bo3bo3bobo3bo3bo$48b2ob2o2bo7bo
2b2ob2o$49bo2b4o7b4o2bo$49bob2o3b2o3b2o3b2obo$50b2o2b2o2bobo2b2o2b2o$
53bobo2bobo2bobo$48b4o3bob2ob2obo3b4o$48bo2bo3bo7bo3bo2bo$49bo5bo7bo5b
o$50b5o9b5o2$49bob2o13b2obo$49b2obo13bob2o!

[DivusIulius]

[...]at the expense of slightly reduced glider-constructibility[...]

I seriously hope that was a metaphor...

[Kasuha]

The gun can be reduced by using Jason Summers' p4 which he originally invented for the p24 gun in Dec 2002 (the current sparker collides with the p20 part).

Code: Select all

x = 78, y = 43, rule = B3/S23
25bo14bo$24bobo12bobob2o$23bo2bo2b2o7bo2bobobob2o$23bob2obobo8b3o3bobo
$22b2o2bobo14bobobo2bo$24b2obo2bo8b3o3bobobobo$24bo2bo10bo2b3o3bobobo$
21b2obo2bo3bo6b2o2bo2b3ob2o$22bob2obo3bo10bobo$22bo4bo14bo$23b3o2bobo
13b3ob2o$25bo2bobo14b2obo2bo$29b3o12bo3bob2o$28b2o2b2o6b2o2bo2bobo$30b
ob2o6bobob4obo4bo6b2o$31b2o11bo3bo4bobo4bo2bo2bo4b2o$26b2o5b2o6bobob3o
4bo2bo4bobo3b3o2bobo2b2o$15b2o5b2obobo4b3o6bo3bo6b4ob2obo2b3o3bobo2bo
2bo$5b2o4bo2bo2bo3bobobobob2o8b2o3bo12bobobobo2bo2bob2obobo$2o2bobo2b
3o3bobo3bo3bo2b2ob2o6b2obo11b2o3bob2o3bo3b2o2bob2o$o2bo2bobo3b3o2bob2o
b4o4b2o2bo5bo2bo9bo3bo4bo2bo3bo3b2o$bobob2obo2bo2bobobobo9bobobo6b3o9b
2o7bob2obobo2bobo$2obo4bo2bo4b2o3b3o7bo2b2o3b3o8bob3obobo3bobob2ob5o$
3bob2o3bo3bo2bo6bo14bo12bobobobob2o2bo3bo$3bo4bobobo2b2o2bobo2b3o16bo
4bo4b2obobobo3bo3bo2bo$4b5ob2obobo2b2obobob2o15bo8b2o3b2obo2bob2o3b3o$
9bo3bo2b2o4bo4bo13bo2bo3bo2b3obo3bob2o$6bo2bo3bo3bobobob2o3bo13bo8b2o
3b2obo2bob2o3b3o$6b3o3b2obo2bob2o2bo3bo6bo7bo4bo4b2obobobo3bo3bo2bo$
15b2obo4bo4bo4b2ob2o2bo11bobobobob2o2bo3bo$6b3o3b2obo2bob2o2bo3bo6bo5b
o8bob3obobo3bobob2ob5o$6bo2bo3bo3bobobob2o3bo10b3o11b2o7bob2obobo2bobo
$9bo3bo2b2o4bo4bo25bo3bo4bo2bo3bo3b2o$4b5ob2obobo2b2obobob2o27b2o3bob
2o3bo3b2o2bob2o$3bo4bobobo2b2o2bobo2b3o18bo11bobobobo2bo2bob2obobo$3bo
b2o3bo3bo2bo6bo8b4o9bo5b4ob2obo2b3o3bobo2bo2bo$2obo4bo2bo4b2o3b3o8b6o
6b3o5bo2bo4bobo3b3o2bobo2b2o$bobob2obo2bo2bobobobo11bo4bo15bobo4bo2bo
2bo4b2o$o2bo2bobo3b3o2bob2ob4o7bo2bo17bo6b2o$2o2bobo2b3o3bobo4bo2bo5bo
bo2bobo11bo$5b2o4bo2bo2bo4bobo6b2o4b2o12bo$15b2o6bo25b3o!

[Tropylium]

The robust "middleweight supervolcano" used here is the main new component, I presume?

[calcyman]

The oscillator I posted, incorporating Karel's reduction:

Code: Select all

x = 95, y = 109, rule = B3/S23
55b2obo13bob2o$55bob2o13b2obo2$56b5o9b5o$55bo5bo7bo5bo$54bo2bobobo7bob
obo2bo$54b3ob2obob2ob2obob2ob3o$61bo2bobo2bo$56b6o2bobo2b6o$55bo3bo2b
2o3b2o2bo3bo$55bo4b2o7b2o4bo$54b2ob2o2bo7bo2b2ob2o$56bob2o4bobo4b2obo$
56bo2b6ob6o2bo$54bob3o13b3obo$53bobo3b3o2b3o2b3o3bobo$53bo3b2obobo2bo
2bobob2o3bo$54b3o5b2o3b2o5b3o$57bo3bo2b3o2bo3bo$56bo5b2o3b2o5bo$56b2o
2bo3bobo3bo2b2o$58bo3b3ob3o3bo2b2o10bo$54b3o2b2o4bo4b2o2bo2bo7b3o2bo$
53bo2bobo4bo3bo4bobob2o6bo5b3o$54bobo2bo5bo5bo2bo9bob4o3bo$55b2o4b2o5b
2o4b4o5b2obo2bobo2bo$61b4ob4o8bo12b3o$65bo10b3o$75bo8b8o$75b2o3b3ob6o
2bo$47b2o5bo18b2o7bo2b4o2b2o$16b2obo13bob2o9bo2bo3bobob2o13bobobo2bo$
16bob2o13b2obo3b2ob2o2bobo2bobo16bo7b4o$41bobob2obo3bo2b2o2bo5bo8bo2b
2o$17b5o9b5o3bo8bobobo3b3o5b3o4bo2bo3bo$16bo5bo7bo5bo2b2o3b3obob2o4b3o
4b2ob2o3bobo$15bo2bobobo7bobobo2bobo3bo3b2o6b2o2bo4b3o$15b4obobob2ob2o
bobob4o2bo2b4obob2o2bo10bo$22bo2bobo2bo7bobo5b2o2bobo2bob2o13bo14b2o3b
o$17b3ob2o2bobo2b2ob3o2bo2b3obobobo3b2o16bo3bo11bobobobo$16bo6b2o3b2o
6bob2obo2bo17bobo3bo3bo2b2o3b2o7bobo2bo$16bo3b3o7b3o3bo2bo3bobo16b2o4b
o4bo3bobobo7bob3o$15b2ob2o2bo7bo2b2ob2obo2b2o3bo15bo3bobo3b5o8b2o2bo$
17bo3bo3bobo3bo3bo3bobo2bo2bo20bo5bo2b2o2bo3b2obob4o$17bo4b4ob4o4bo3bo
2bo4bo20bo8bo3bo3b2obobo2bo$15bob2obo11bob2ob2obobob3o10bobo17b2obobob
o5b3o$14bobo4b2o2b3o2b2o4bo3bobo2bobo2b2o5b2o19bobo3b2obo$14bo3b2obobo
2bo2bobob2o2bob2ob2o2b2obobo6bo19bobo4b8o$15b3ob2o2b2o3b2o2b2ob3obo6b
5o28bo2b3o7bo$18bo3bo2b3o2bo3bo4bo8b2o16b5o9b2o2bo2b3o$17bo3b2obo3bob
2o3bo3bobo10bobo10bo5bo10bo4bo2bo$17b2o6bobo6b2o4b2o10b2o9b2o7b2o8b2o
4b2o$19bob2ob2ob2ob2obo14bo4bo4b2o3b2o7b2o3b2o$15b3obo3bo5bo3bob3o10b
2o7bobo2b2o2b2ob2o2b2o2bobo$14bo2bobo2bobobobobo2bobo2bo4bo4b3o5bo2bob
o2bobobobobo2bobo2bo$15bobo2b2o2b2ob2o2b2o2bobo6bo3b2o7b3obo3bo5bo3bob
3o$16b2o3b2o7b2o3b2o8bo15bob2ob2ob2ob2obo$5b2o4b2o8b2o7b2o21b2o4b2o6bo
bo6b2o$4bo2bo4bo10bo5bo23bobo3bo3b2obo3bob2o3bo$5b3o2bo2b2o9b5o9b2o5b
2o8bo4bo3bo2b3o2bo3bo$2bo7b3o2bo23b2o3b5o6bob3ob2o2b2o3b2o2b2ob3o$2b6o
5b2obo21bo4bobob2o2b2ob2obo2b2obobo2bo2bobob2o3bo$7b2ob3obobo7b2ob2o
14b2o2bobo2bobo3bo4b2o2b3o2b2o4bobo$2b3ob3o7b2o7b3o20b3obobob2ob2obo
11bob2obo$bo4b2ob2ob3o11bo6b2o12bo4bo2bo3bo4b4ob4o4bo$b2o2b2o12b3o12b
2o11bo2bo2bobo3bo3bo3bobo3bo3bo$4bo3bo6b3o15bo13bo3b2o2bob2ob2o2bo7bo
2b2ob2o$b3obo2bo4bobobo4bo26bobo3bo2bo3b3o7b3o3bo$o2bobo7b2o5bo29bo2bo
b2obo6b2o3b2o6bo$bobobobo10bob4o4b2o10b2o3bobobob3o2bo2b3ob2o2bobo2b2o
b3o$2bo3b2o21b2o5b2obo2bobo2b2o5bobo7bo2bobo2bo$28bo11bo2b2obob4o2bo2b
4obobob2ob2obobob4o$35bo2b2o6b2o3bo3bobo2bobobo7bobobo2bo$22bo13b3o4b
2obob3o3b2o2bo5bo7bo5bo$15b3o3b2o5b3o5b3o3bobobo8bo3b5o9b5o$13bo8bo5b
3o4bo2b2o2bo3bob2obobo$12bo4bobobo5bo3bo8bobo2bobo2b2ob2o3bob2o13b2obo
$12bo2b2o5bo3b3ob3o3b2obobo3bo2bo9b2obo13bob2o$2b2o10bo3bo2bo4b2o3b2o
7bo5b2o$2bo11bo3bo$3b9obo5bo$5b6o5b3o10bo$b3o6bo5bo8b4ob4o$o2bobo2bob
2o5b4o4b2o5b2o4b2o$bo3b4obo9bo2bo5bo5bo2bobo$2b3o5bo6b2obobo4bo3bo4bob
o2bo$4bo2b3o7bo2bo2b2o4bo4b2o2b3o$7bo10b2o2bo3b3ob3o3bo$20b2o2bo3bobo
3bo2b2o$20bo5b2o3b2o5bo$21bo3bo2b3o2bo3bo$18b3o5b2o3b2o5b3o$17bo3b2obo
bo2bo2bobob2o3bo$17bobo3b3o2b3o2b3o3bobo$18bob3o13b3obo$20bo2b6ob6o2bo
$20bob2o4bobo4b2obo$18b2ob2o2bo7bo2b2ob2o$19bo4b2o7b2o4bo$19bo3bo2b2o
3b2o2bo3bo$20b6o2bobo2b6o$25bo2bobo2bo$18b3ob2obob2ob2obob2ob3o$18bo2b
obobo7bobobo2bo$19bo5bo7bo5bo$20b5o9b5o2$19bob2o13b2obo$19b2obo13bob2o
!