p4-assisted period-28 glider gun

p4-assisted period-28 glider gun
x = 34, y = 23, rule = B3/S23 6b2o8b2o$4bo2bo8b2o9bo$4b2obob2o15bobo$5bobo2bo11bob3obo$2b3o2bo14b2o 4b2o$bo23b2o3bo$bob2obobo13b2obob4o$2obo4b2o12bo2bobo$bobo5bo15bo2bo$b ob2obo2bo19bo$2obo5bo6b3o5bobob2o$3bo4b2o4b2ob2o4b2o8bo$3b2obobo5b3o6b o7b3o$23bo6bo$b4o2bo15bo5bo2b2o$bo3bobo2bo12b2o2bo2b2obo$4b2obob2o10b 3ob2o4bo$4bo2bo23bo$6b2o19b3ob2o$12b2o12bo2bo$13bo12b2obob2o$10b3o16bo 2bo$10bo18b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ THUMBSIZE 3 ZOOM 15 HEIGHT 600 AUTOSTART GPS 7 KILLGLIDERS ]]
View static image
Pattern type	Gun
Number of cells	157
Bounding box	34 × 23
Period	28
Barrels	1
Discovered by	James Pascua iNoMed
Year of discovery	2022
Rules Outer-totalistic rules B3/S23 – B3/S238 # of rules 21 = 2 Isotropic rules B3/S23 – B35i6c/S234ez5cekr6ei8
Pattern files Plaintext p4assistedperiod28glidergun.cells RLE p4assistedperiod28glidergun.rle

The p4-assisted period-28 glider gun was found by James Pascua on February 14, 2022. It is the smallest known p28 glider gun, beating out Medusa from 2020, and is also the eighth-smallest known gun overall with a unique period as of July 2023. Although its optimal bounding box (34 × 23) requires it to have only one barrel, the mechanism is rotationally symmetric and can be reconfigured to have two barrels, as shown below. When capped, it provides yet another example of period-28 honey farm hasslers.

Gallery

x = 37, y = 23, rule = B3/S23 4b2o18bo$5bo16b3o$5bob2o12bo$2b2obo2bo12b2o$o2bob3o19b2o2b2o$2obo23bob o2bo$3bo4b2ob3o10b2obob2o$3b2o2bo2b2o12bo2bobo3bo$11bo15bo2b4o$3b2o6bo $3bobo5bo6b3o5bobob2o$5bo4b2o4b2ob2o4b2o4bo$5b2obobo5b3o6bo5bobo$25bo 6b2o$3b4o2bo15bo$3bo3bobo2bo12b2o2bo2b2o$6b2obob2o10b3ob2o4bo$4bo2bobo 23bob2o$4b2o2b2o19b3obo2bo$14b2o12bo2bob2o$15bo12b2obo$12b3o16bo$12bo 18b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 8 AUTOSTART GPS 7 KILLGLIDERS ]] Two-barreled version (37 × 23) (click above to open LifeViewer) RLE: here Plaintext: here

x = 34, y = 28, rule = B3/S23 6b2o8b2o$4bo2bo8b2o$4b2obob2o$5bobo2bo13b2o$2b3o2bo17bo3b2o$bo23bobo2b o$bob2obobo13b2obob2o$2obo4b2o12bo2bobo3bo$bobo5bo15bo2b4o$bob2obo2bo$ 2obo5bo6b3o5bobob2o$3bo4b2o4b2ob2o4b2o4bo$3b2obobo5b3o6bo5bobo$23bo6b 2o$b4o2bo15bo$bo3bobo2bo12b2o2bo$4b2obob2o10b3ob2o$4bo2bo$6b2o9bobo7b 3o$12b2o4b2o6bo$13bo4bo7b2o3bo$10b3o16b2obo$10bo21bo$32b2o$15b4o$10b2o 7bo$10b2o2b2o3bo$14b2o2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 8 AUTOSTART GPS 7 KILLGLIDERS ]] Smallest known period-56 glider gun, using a blocker as a filter (34 × 29) (click above to open LifeViewer) RLE: here Plaintext: here

x = 110, y = 84, rule = B3/S23 27b2o3b2o4b2o$27bo4bo6bo15b2o36b2o$20bo7b3obo6bobo13bobo22b3o11bo5bobo $20bo2bo6bobob2o4b2o2b2o35b2o9bobob2obob2o2bo$15b2o3bo2bo7bob2o10bo33b o2b2o2bobob5o2bobo3b3o$15bo4bo3bo5b2o4bo6b2o19b2o13b2o3bobo8bobo2b2o$ 16b2o2bo2bo2b3o2b6o6b3o3bo7b2o5bo2bo16bo4bo5bob2obob2o$18b2o4b7o14b2ob 2o11b2obob2o11b2o12bo2bobo5bo$16b2ob2o11bobo10b2o14b2obobo3bo9bo9bo7bo 2b2obo$15bo2bobo12b2o4b2o7b2o15bob4o9bobo7b2o6bo3b3ob2o$15b2o2bo19bobo 5b3o2b2o3bo6bobo14b2o6b2obo5bob2o4bo$37bobo2bo5b2obo2bobobo3b3o2b2o19b 5o8bo3bo2bo$26bo3bo6b2obobo3b3o2bo7bo2b3o3bo32bobo2b3o$27b3obo8bob2o2b 3o3bobobo2bob2o5bobo12bobo16bob2o$22bo5bo4bobo4bo3bobo6bo3b2o2b3o5b2o 12b2o18bo2bo$5b2o11b3obo5bobo4bo5b3obo15b2o21bo3b5o12b2o$6bo11b4o8bo4b o8bobob2o14b2o3b2o17bob2o$4bo17b3o2bob3o2bo8b2obob2o6bo4b2ob2o4bo18b2o 7b2o$4b5ob2o3b2o5b2o4bo3bo10bo2bo7bobo4bo3b3o2bob2o16bo7bo$bo6bobo4bo 29b2o8b2o9b3obo2bo10b2obo6b2o3b3o$b6o4b3obo35b2o12bo2bob2o4bobo5b2o5bo 2b2o5bo$13bobob2o5b2o7b3o6bo9bo12b2obo7b2o7bo2bo4bo$3bo10bo2bo6bobo13b obo6b3o16bo8bo6bob2ob2ob6o$3b2o3bo10bobo6b5o8b2o6bo18b2o11b2o3bo10bo$ 6bob2ob2ob6ob7o2b4o29bo17bo10bo2bo$7bo2bo4bo11b2o3b3o2b2o22bobo27bobob 2o$6b2o5bo2b2o5b3obo10bo23b2o15b6o4b3obo$6b2obo6b2o4bobobobo7b2o31bo2b obo4bo6bobo5b3o$10bo11bo3bob3o5b3o10bo19bo12b5ob2o6bo$20bobo3bo4bo6b2o 7bobo19b2o11bo4bo3bo$11b3o6b2o3b2o3b2o6bo9b2o19bobobo10bobo2b3o$10bo3b o24b3o28bo12b2ob3o$9bo5bo25bo26bobo18bo6b2o3b2o$b2o6bo5bo53b2o17b2o6bo 4bo2b2o$b2o6bo5bo65bo15b3obo3bo$10bo3bo41bo23b2o8b3o6bobobo$11b3o6bobo 31bobo23bobo6bo10bo2b2o$21b2o32b2o18bo13b2o3bo10bo$14bo6bo53b3o14bob2o b2ob6o$7b2o6bob2o59bo14bo2bo4bo$7b2o2bo5b2o56b2obo13b2o5bo2b2o$9bo4bo 2bo50bobo4bobob2o7bo3b2obo6b2o$5b6ob2ob2obo44bo7bo5bo3bo5b2o7bo$5bo10b o3b2o5bobo31bobo7bo4b2o2b2o5bobo$7bo2bo10bo6b2o32b2o4bo2bo3b3o$6b2obob o16bo40b3o3b3o2b4o16b3o$9bob3o4b6o51b3o2bo2bo9bob2obo4bo4b2o$9bo4bobo 6bo51b2obo2bobob2o6bo3bobo3bo4b2o$8b2o3b2ob5o14b2o12b2o12b2o11b3ob2o2b o2bo5bo4bob2obo$20bo12b2ob2o9b2ob2o9b2ob2o4bo5b2o4bobo2bo6b3o$18bo14b 4o10b4o10b4o3bobo7bob2o2bob2ob2o$18b2o14b2o12b2o12b2o5b2o9b2o2bo3bobo$ 73bo7b2obo3bo11bo$23b3o38bo9bo4b3o2bobobo4b2o11b2o$25bo15bo15b2ob2o3bo 6b3o4b2o3bob2o5b2o2bo5bo2b2o$24bo16b3o10bobobobo5bo17bo10bo4bo4bo$44bo 7b3obobo2b3obob2o8bo4bo3b2o3b6ob2ob2ob6o$33b3o7b2o6bo4bob3o5b2obo5bobo 5b2obobo2bo17bo$7b2o18b2o4bo18b3obo4b4o4bo6b2o7bo2bo4bo2bo7bo2bo$4b2o 2b3o16bo6bo11b2o6bobob3o3b5o11bo4bobo4b2obobo2bo2bobob2o$3bob2o4bo4b3o 5b2obo16bob2o7bob2o2b2o18bo4bo8bob7obo$3bo6b2o6bo5b2obob2o13b2ob3o6bo 3bo2b4o12b3o13bo9bo$2ob4o10bo8b2obo2bo15b2o3b3ob4o2bo2bo29b6o3b2o$obo 4bo12bo8bob2o18bob2o29bo13bo2bo$2bo2b3o12bo3bo4bo10b3o5bob5o2b2o5bo17b obo$2b2o2bo13bo2b2o3b2o10bo6b2ob3o4b2o3b3o18b2o$2o3b3o14b3o16bo19bo25b o$bo4b2o5b3o6b2o4b2o31b2o25bo$bob2obo5bob2o6b2o3bobo28bo27b3o$2bobobo 5bo3bo5bo4bo22b2o2bo4b2o7b2o$4b3o6b2obo5bobob2o21b2obob2o4bo5bo2bo21bo $4b3o6b3o7b3o21b2o3bobo3b3o4bob2o20bobo$2b2ob2o14bobo2b4o17bo3b2obob2o 6bobo2b3o18b2o$2b2o2bo13bo2bobo3bo18bo3bo2b2o7bo3bo2bo22bo$6bo13b2obob 2o17b2o15bob2o4bo25bo$2b4o17bo2bo16bobo15b2o4bob2o22b3o$2bo2b2o16b2o 18bo18b3ob2o$4bo2bo10b2o22b2o10b3obo4bobobo30bo$4o2b2o10bobo26bo4b5obo b2obob2o29bobo$o5bob2o10bo21b2o2bobobo2bobo2bobo2b2o32b2o$3b2obob2o10b 2o20bo7bobobob2o2bobo3b3o$3bo2bo37bob2o9bob2obob2o2bo$5b2o36b2o10bobo 5bobo$56b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 4 WIDTH 640 HEIGHT 480 ]] Smallest known pseudo-p14 glider gun (110 × 84) (click above to open LifeViewer) RLE: here Plaintext: here