Period-36 glider gun

Smallest period-36 glider gun
x = 47, y = 30, rule = B3/S23 19b2o2b2ob2o$19bo2bobobobo$20b3obo2b3obo$17b3o2bob2o2bob2o2bo$16bo2bob 2o2bo6b3o6b2o$16bo2bobo2b2ob5o8bo2bo$17b3o2b3o8b2o5bo2bo$20bobob5ob2ob obo2bob4ob2o$7b3o9b2obo4bobo5bo2b2o4bobo$7b2o14b3o2bobob3o6b2o$5bob2o 4bo11b2o4b2o5b3obob2o$b2o5bo4bo23bo8bo$ob3o2bo5bo23bobo3b4o$o5bo5b2o 22b2obobobo$b4o5bo25bo2bobob4o$4b2o3bo4bo22bobo2b2o2bo$4b2o3bo27bobobo bo$b3o7b3o8b3o12bobobo3bo$24bo12bobobobo$o21bobo11bo4bob2o$obo19b2o12b 2obo2bo$b2o10b2o22bob2obo$12bobo22bo2bob2o$12bo25b2o$12b3o8b3o$21bo$2b o18bo4bo$2bobo17bo2bobo$bobo20bo2bo$3bo21b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] [[ AUTOSTART GPS 36 THUMBSIZE 2 ZOOM 10 WIDTH 600 HEIGHT 600 ]]
View static image
Pattern type	Gun
Number of cells	245
Bounding box	47 × 30
Period	36
Barrels	1
Discovered by	iNoMed BlinkerSpawn
Year of discovery	2024
Rules Outer-totalistic rules B3/S23 only # of rules 20 = 1 Isotropic rules B3/S23 – B34e8/S235k6in7e
Pattern files Plaintext p36gun47x30.cells RLE p36gun47x30.rle

A period-36 glider gun is any gun that repeats at period 36 and emits a glider stream. The first such gun was a true period 36 gun discovered by Jason Summers on July 23, 2004. Adam P. Goucher improved the gun by replacing one of the three original period 36 oscillator engines with a large period-4 oscillator. Scot Ellison improved the gun by replacing the period 4 oscillator with Ellison p4 HW emulator hybrid.

On April 12, 2022, iNoMed and David Raucci completed a 50 × 40 p36 gun that uses only one copy of Jason's p36. A day later James Pascua optimized this to the higher-population 49 × 30 form shown in the infobox. Almost a year later, BlinkerSpawn completed an alternate design by iNoMed that allowed for a slightly narrower bounding box, 47 × 30.

On October 31, 2024, Period1GliderGun found a smaller 32 × 35 design based on a modified traffic jam mechanism, which was reduced to 32 × 32 by affamatodidio with a custom p3. Forum user "ElijahKen" subsequently reduced it further to 32x31 via a specific caterer catalysis.

Gallery

#N original p36 glider guns #O Jason Summers, 23 July 2004 #C These were the first p36 glider guns assembled using Jason's p36 x = 161, y = 77, rule = B3/S23 31bo79bo$31b3o77b3o$34bo79bo$33b2o78b2o2$116bo$115b3o$114bo2b2o$114bo 3bo$36bo79bobo$35b3o7b2o78b2o$34bo2b2o5bo2bo65b2ob2o6bo2bo$34b2ob2o4bo bobo67bo6bo2bobo$33b3o2bo2b3o2bo75bo3bo$34b2obo84bo$35bo7b2o69b3o8bo$ 35bo3bo4bo70b2o6b2o$36bobo76b2o$37bo2$40bo$39bobo79b2o$31b2o5bo3bo70b 2o6b2o$30bo2bo8bo69bo8b3o$30bobobo5bob2o71bo$31bo2b3o2bo2b3o66bo3bo$ 26b2o11b2ob2o24b2o40bobo2bo6bo25b2o$2o23bo2bo4b2o4b2o2bo23bo2bo39bo2bo 6b2ob2o22bo2bo$bo24bobo4bo6b3o25bobo40b2o35bobo$bobo9bo8b2o3bo13bo22b 4obo49bobo22b2o3bo$2b2o7b4o8bob2o27b3o7b2ob2o50bo3bo6b4o3bobo5bob2o$ 10bob5o8bo27b2o3bo8bo51b2o2bo5b2o2bo2bo3bo6bo$9b2o6bo7bo26b2o2bobo38b 2o21b3o5b2o2bo4bo9bo$10b3obo3bo34bo5bo6bo29bo2bo21bo7bo2bo6b2o$11b3o3b o4bo31b2o2bo5bo31bobo2bo28b2o$16bo4bo3b3o30bo5bo2b2o28bo4bo48b2o$20bo 3bob3o27bo6bo5bo32bo6b2o3bo27b2o6bo2bo$13bo7bo6b2o34bobo2b2o27b3o6b3o 4b2o19bo9bo4bo2b2o$13bo8b5obo14bo11bo8bo3b2o36bo2bo5b2o6bo11bo6bo3bo2b o2b2o$12b2obo8b4o16bo9b2ob2o7b3o8b2o27bo7b2o8bo9b2obo5bobo3b4o4b2o$11b o3b2o8bo16b3o8bob4o18bobo26b2o14b3o8bo3b2o18bobo$10bobo39bobo24bo23b2o 27bobo24bo$10bo2bo38bo2bo23b2o14b2o7bo27bo2bo23b2o$11b2o40b2o39b2o5bo 2bo28b2o$95b2o4b3o6b3o$88b2o6bo3b2o6bo$87bobo18bo4bo$52bo34bo21bo2bobo 17bo$32bo8b2o10bo32b2o23bo2bo18bo$31b3o6bo2bo7b3o58b2o17b3o$30b2o2bo4b obobo$30bo3bo3b3obo$30bobo3bo3bo$39b2o$31b2ob2o3b2o$33bo4$36bo$29b2o3b 2ob2o$29b2o$29bo3bo3bobo$27bob3o3bo3bo$26bobobo4bo2b2o$26bo2bo6b3o$27b 2o8bo7$39b2o$39bo$40b3o$42bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 500 ZOOM 4 AUTOSTART GPS 5 ]] Jason Summers' original 4- and 3-engine p36 glider guns from 2004 (click above to open LifeViewer) RLE: here Plaintext: here

x = 52, y = 49, rule = B3/S23 48bo$46b3o$45bo$45b2o2$43bo$42b3o$41b2o2bo$41bo3bo$41bobo2$35bo6b2ob2o $30b4o3bo6bo$33bo3bo$37bo$34bo8b3o$35b2o6b2o$43b2o4$37b2o$26bo10b2o6b 2o$26bo9b3o8bo$26bo17bo$2o23b2o17bo3bo$bo21bo13bo6bo3b4o$bobo11bo6bo4b o7b2ob2o6bo$2b2o3b2o5b3o5bo$7b2o3b2o3bo6b3o11bobo$8b3o4b2o19bo3bo$9bo 3b2o21bo2b2o$27b3o7b3o$9b3o21b2o3bo$24b2o3b2ob2obo$22b2o4b3o4b2o$12b3o 6bo3b2o3b2o2b2o$16bo5b3o5b2o9bo$11bo4bo6bo18bo$15bo15b2o7b3o$12b2o$12b o11bo11b2o$12bo10bobo11bo$12bo10bobo2b9o$20b2obo2bob7o2b3o$20b2obo4b6o 2bo2bo$23bo13b2o11bo$23bobo4b2o19bo$24b2o4b2o17b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 500 ZOOM 8 AUTOSTART GPS 5 ]] 2-engine p36 glider gun with optimizations by Adam P. Goucher and Scot Ellison (click above to open LifeViewer) RLE: here Plaintext: here

x = 49, y = 30, rule = B3/S23 34b2o$35bo5bo$27bo2bo2bo5b3o$27b4o2b2o3bo$3bo21b2o4b2o3bo2bo$bobo20bo 2b4o2b3o3bo$2bobo17bo2bobo3b3o3b2o9bo$2bo18bo4bo3bo3bo11b3o$21bo8bobob o10bo$12b3o8b3o5b3o11b2o$12bo19bo$12bobo$b2o10b2o$obo19b2o$o21bobo20b 3o$24bo17bo$b3o7b3o8b3o16bobo$4b2o3bo34bo$4b2o3bo4bo27b2o$b4o5bo$o5bo 5b2o$ob3o2bo5bo$b2o5bo4bo14b6o$5bob2o4bo12b2o6b2o$7b2o16bobobo2bobobo$ 7b3o13b3obo6bob3o$22bo3b2ob4ob2o3bo$23b2o3bo4bo3b2o$25b2o2bo2bo2b2o$ 25bob2o4b2obo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 500 ZOOM 8 AUTOSTART GPS 5 ]] single-engine p36 glider gun by iNoMed, David Raucci, and James Pascua (click above to open LifeViewer) RLE: here Plaintext: here

x = 32, y = 31, rule = B3/S23 17bo12b2o$15bo3b4o3b2o2bo$15bo3bo6bobobo$4b2o4bo4bo12bob2o$4bo4bobo6b o4b2o2b2obo$6bo2bo2bo3b2o5b2o5bo$2b4obob2obo17b2o$bo5bo2bob2o$bo2b2o2b obo3bo$2obo4bob2ob3o2b3o$3bo2bo3bo2b3o2bobo$3b2ob2obobo2b2o2b3o$6bo3b ob3o$3b2o3b2o3b2o$2bobob2obob2o$2bo2bo3bobo11b2o$3bobo3bobo10bo$4bo5b o12b2o$23bo$22bo$21bobo$21bobo$22bo$10b2ob4obo$9bob3o2b3o$9bobo2b2o2b 2o$10bo2bo2bo$7b3o4bob2ob3o$7bo5b2obo2bo9bo$16bo13bo$16b2o10b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 500 ZOOM 8 AUTOSTART GPS 5 ]] the current smallest p36 gun, by Period1GliderGun, affamatodidio, and forum user "ElijahKen" (click above to open LifeViewer) RLE: here Plaintext: here

External links

• Period-36 glider gun at the Life Lexicon