Period-22 glider gun

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Period-22 glider gun
x = 45, y = 21, rule = B3/S23 18b2o$19bo7bo$19bobo14b2o$20b2o12b2o2bo$24b3o7b2ob2o$24b2ob2o7b3o$24bo 2b2o12b2o$25b2o14bobo$35bo7bo$43b2o2$2o23bo$bo21bobo$bobo13b3o4b2o$2b 2o3bo8bo3bo$6bob2o6bo4bo$5bo4bo6b2obo9bo$6bo3bo8bo3b2o6bo$7b3o13bobo3b 3o$25bo$25b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ ZOOM 10 AUTOSTART OFF ]]
Pattern type Gun
Number of cells 86
Bounding box 45×21
Period 22
Barrels 1
Discovered by David Eppstein
Year of discovery 2000

Period-22 glider gun is a true period 22 gun discovered by David Eppstein on August 27, 2000. It uses two copies of the period 22 oscillator, 36P22, and was in fact found later on the same day as that oscillator. It is one of a relatively small number of known true period guns below period 78, where syringe-based guns become possible.

External links