A new Glider Graveyard

[Pooping_Alien]

Infinite Glider Graveyard is a type of nonfiller that outlines a portion of the grid with gliders. Those are comprised of 4 copies of the same rake, preferably using orthogonal standard ships for the rear or having no puffer part.
I discovered a rake, and made it into a glider graveyard:

Code: Select all

x = 375, y = 375, rule = B3/S23
171bo5bo4b3o5b3o4bo5bo$170b3o3b3o3bo2bo3bo2bo3b3o3b3o$170bob2ob2obo3bo
9bo3bob2ob2obo$171b3ob3o4bo3bobo3bo4b3ob3o$171b2o3b2o4bo3bobo3bo4b2o3b
2o$181b2o9b2o$174bo6b2o9b2o6bo$173bobo6bobo5bobo6bobo$172bo3bo21bo3bo$
174bo7b2o7b2o7bo3$166bo41bo$165b3o39b3o$165bob2o37b2obo$166b3o37b3o$
166b3o2bo31bo2b3o$166b3o2bo31bo2b3o$166b2o6bo25bo6b2o2$170bo4bo23bo4bo
$169b2obo29bob2o$170b2ob2o25b2ob2o$183b3o3b3o2$182bo3bobo3bo$182bo3bob
o3bo$183b2obobob2o$183b2obobob2o$169b2o14bo3bo14b2o$168bo2bo31bo2bo$
169b2o33b2o$174bo25bo$173bobo23bobo$172bo2bo23bo2bo$173b2o25b2o7$184bo
5bo$183b3o3b3o$182b3obobob3o$181b2o9b2o$180b2o3b2ob2o3b2o$181b2o9b2o$
182bo9bo2$185bo3bo$184bobobobo$183bo2bobo2bo$169b2o13b2o3b2o13b2o$168b
o2bo31bo2bo$169b2o33b2o$174bo25bo$173bobo23bobo$172bo2bo23bo2bo$173b2o
25b2o$180b2o11b2o$178bo3bo9bo3bo$178bo4bo7bo4bo$182bo9bo$181bo11bo$
178b2o15b2o$175b2ob3obo9bob3ob2o$174bo2bobo2bo9bo2bobo2bo$175bo7bo7bo
7bo$175bo5b2o9b2o5bo$180bo13bo$177b2obo13bob2o$179bo15bo3$174bobo21bob
o$173bo2bo21bo2bo$173bo2bo21bo2bo$170bo2b2o25b2o2bo$169bobobo27bobobo$
169bo2b2o2bo21bo2b2o2bo$170b2o2bobo21bobo2b2o$175bo23bo23$173b2o25b2o$
172bob2o23b2obo$167bo4bo2bo23bo2bo4bo$166bobo4b3o23b3o4bobo$173b3o23b
3o$175bobo19bobo$175b2ob2o15b2ob2o$175bo2bo17bo2bo$175b3o19b3o$176bo
21bo2$171b2o29b2o4$155b3o59b3o$155bo63bo$156bo61bo4$176b2o19b2o$176b2o
19b2o28$120b2o131b2o$120bobo129bobo$120bo43bo4b2o11bo9bo11b2o4bo43bo$
163b3o3b2o10b3o7b3o10b2o3b3o$162b2obo14b2obo7bob2o14bob2o$162b3o15b3o
9b3o15b3o$162b3o15b3o9b3o15b3o$159b3ob2o16b2o9b2o16b2ob3o$158b5o49b5o$
157b2ob3o49b3ob2o$13b2o143b2o55b2o143b2o$12b2ob4o89bo157bo89b4ob2o$13b
6o88bo159bo88b6o$14b4o12bo23bo53bo157bo53bo23bo12b4o$21bo7bobo21bobo
23b2o76b2o57b2o76b2o23bobo21bobo7bo$b2o17b3o6bobo21bobo22bo2bo75b2o57b
2o75bo2bo22bobo21bobo6b3o17b2o$2ob2o11b2o4bo7bo23bo24bobo34bo141bo34bo
bo24bo23bo7bo4b2o11b2ob2o$b4o3bo12bo12bo23bo21bo25b2o8bo141bo8b2o25bo
21bo23bo12bo12bo3b4o$2b2o3bo14bo10bobo21bobo16b5o24bo2b2o155b2o2bo24b
5o16bobo21bobo10bo14bo3b2o$6bo2bo8bo3bo9bo2bo20bo2bo7bo7bo2bo2bo23b2ob
2o155b2ob2o23bo2bo2bo7bo7bo2bo20bo2bo9bo3bo8bo2bo$2b2o3bo12bo12b2o22b
2o7bob2o12bo23b8o147b8o23bo12b2obo7b2o22b2o12bo12bo3b2o$b4o3bo57bo8b3o
2b2o29bob2o11b2o119b2o11b2obo29b2o2b3o8bo57bo3b4o$2ob2o62bo3bo38bo2bo
12b2o119b2o12bo2bo38bo3bo62b2ob2o$b2o58b2o2b2o4bo39b2o149b2o39bo4b2o2b
2o58b2o$65b3o4bo38bo151bo38bo4b3o$46bo13bo5bo3b2o87b3o51b3o87b2o3bo5bo
13bo$5b2o38b3o12bo3bo4bo88b5o49b5o88bo4bo3bo12b3o38b2o$8obo15b2o17b2ob
2o12bobo2b2obo87b2ob3o49b3ob2o87bob2o2bobo12b2ob2o17b2o15bob8o$o8bo13b
o3b2o14b2o7bo9bo5bo89b2o55b2o89bo5bo9bo7b2o14b2o3bo13bo8bo$o6bo15bo3b
2o13b3o6bobo267bobo6b3o13b2o3bo15bo6bo$bo21bo5bo13bo2bo3bo2bo267bo2bo
3bo2bo13bo5bo21bo$3b2o20b4o15bobo4b2o269b2o4bobo15b4o20b2o2$3b2o20b4o
15bobo4b2o269b2o4bobo15b4o20b2o$bo21bo5bo13bo2bo3bo2bo267bo2bo3bo2bo
13bo5bo21bo$o6bo15bo3b2o13b3o6bobo267bobo6b3o13b2o3bo15bo6bo$o8bo13bo
3b2o14b2o7bo9bo5bo89b2o55b2o89bo5bo9bo7b2o14b2o3bo13bo8bo$8obo15b2o17b
2ob2o12bobo2b2obo87b2ob3o49b3ob2o87bob2o2bobo12b2ob2o17b2o15bob8o$5b2o
38b3o12bo3bo4bo88b5o49b5o88bo4bo3bo12b3o38b2o$46bo13bo5bo3b2o87b3o51b
3o87b2o3bo5bo13bo$65b3o4bo38bo151bo38bo4b3o$b2o58b2o2b2o4bo39b2o149b2o
39bo4b2o2b2o58b2o$2ob2o62bo3bo38bo2bo12b2o119b2o12bo2bo38bo3bo62b2ob2o
$b4o3bo57bo8b3o2b2o29bob2o11b2o119b2o11b2obo29b2o2b3o8bo57bo3b4o$2b2o
3bo12bo12b2o22b2o7bob2o12bo23b8o147b8o23bo12b2obo7b2o22b2o12bo12bo3b2o
$6bo2bo8bo3bo9bo2bo20bo2bo7bo7bo2bo2bo23b2ob2o155b2ob2o23bo2bo2bo7bo7b
o2bo20bo2bo9bo3bo8bo2bo$2b2o3bo14bo10bobo21bobo16b5o24bo2b2o155b2o2bo
24b5o16bobo21bobo10bo14bo3b2o$b4o3bo12bo12bo23bo21bo25b2o8bo141bo8b2o
25bo21bo23bo12bo12bo3b4o$2ob2o11b2o4bo7bo23bo24bobo34bo141bo34bobo24bo
23bo7bo4b2o11b2ob2o$b2o17b3o6bobo21bobo22bo2bo75b2o57b2o75bo2bo22bobo
21bobo6b3o17b2o$21bo7bobo21bobo23b2o76b2o57b2o76b2o23bobo21bobo7bo$14b
4o12bo23bo53bo157bo53bo23bo12b4o$13b6o88bo159bo88b6o$12b2ob4o89bo157bo
89b4ob2o$13b2o143b2o55b2o143b2o$157b2ob3o49b3ob2o$158b5o49b5o$159b3ob
2o16b2o9b2o16b2ob3o$162b3o15b3o9b3o15b3o$162b3o15b3o9b3o15b3o$162b2obo
14b2obo7bob2o14bob2o$163b3o3b2o10b3o7b3o10b2o3b3o$120bo43bo4b2o11bo9bo
11b2o4bo43bo$120bobo129bobo$120b2o131b2o28$176b2o19b2o$176b2o19b2o4$
156bo61bo$155bo63bo$155b3o59b3o4$171b2o29b2o2$176bo21bo$175b3o19b3o$
175bo2bo17bo2bo$175b2ob2o15b2ob2o$175bobo19bobo$173b3o23b3o$166bobo4b
3o23b3o4bobo$167bo4bo2bo23bo2bo4bo$172bob2o23b2obo$173b2o25b2o23$175bo
23bo$170b2o2bobo21bobo2b2o$169bo2b2o2bo21bo2b2o2bo$169bobobo27bobobo$
170bo2b2o25b2o2bo$173bo2bo21bo2bo$173bo2bo21bo2bo$174bobo21bobo3$179bo
15bo$177b2obo13bob2o$180bo13bo$175bo5b2o9b2o5bo$175bo7bo7bo7bo$174bo2b
obo2bo9bo2bobo2bo$175b2ob3obo9bob3ob2o$178b2o15b2o$181bo11bo$182bo9bo$
178bo4bo7bo4bo$178bo3bo9bo3bo$180b2o11b2o$173b2o25b2o$172bo2bo23bo2bo$
173bobo23bobo$174bo25bo$169b2o33b2o$168bo2bo31bo2bo$169b2o13b2o3b2o13b
2o$183bo2bobo2bo$184bobobobo$185bo3bo2$182bo9bo$181b2o9b2o$180b2o3b2ob
2o3b2o$181b2o9b2o$182b3obobob3o$183b3o3b3o$184bo5bo7$173b2o25b2o$172bo
2bo23bo2bo$173bobo23bobo$174bo25bo$169b2o33b2o$168bo2bo31bo2bo$169b2o
14bo3bo14b2o$183b2obobob2o$183b2obobob2o$182bo3bobo3bo$182bo3bobo3bo2$
183b3o3b3o$170b2ob2o25b2ob2o$169b2obo29bob2o$170bo4bo23bo4bo2$166b2o6b
o25bo6b2o$166b3o2bo31bo2b3o$166b3o2bo31bo2b3o$166b3o37b3o$165bob2o37b
2obo$165b3o39b3o$166bo41bo3$174bo7b2o7b2o7bo$172bo3bo21bo3bo$173bobo6b
obo5bobo6bobo$174bo6b2o9b2o6bo$181b2o9b2o$171b2o3b2o4bo3bobo3bo4b2o3b
2o$171b3ob3o4bo3bobo3bo4b3ob3o$170bob2ob2obo3bo9bo3bob2ob2obo$170b3o3b
3o3bo2bo3bo2bo3b3o3b3o$171bo5bo4b3o5b3o4bo5bo!

[chineseman]

How to use it?